ADUM5201 [ADI]
Dual-Channel Isolators with Integrated DC/DC Converter; 双通道隔离器，集成DC / DC转换器
| 型号： | ADUM5201 |
| 厂家： | 
ADI |
| 描述： | Dual-Channel Isolators with Integrated DC/DC Converter |
| 文件： | 总23页 (文件大小：501K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Dual-Channel Isolators with
Integrated DC/DC Converter
ADuM5200/5201/5202
Preliminary Technical Data
FEATURES
isoPower™ integrated isolated DC/DC converter
FUNCTIONAL BLOCK DIAGRAMS
Regulated 3V or 5V output
500mW output power
Dual dc-to-25 Mbps (NRZ) signal isolation channels
Schmitt Trigger Inputs
SOIC 16-lead package with > 8mm creepage
High temperature operation: 105°C
High common-mode transient immunity: > 25 kV/μs
Safety and regulatory approvals (pending)
UL recognition
2500 V rms for 1 minute per UL 1577
CSA component acceptance notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
APPLICATIONS
RS-232/RS-422/RS-485 transceiver
Industrial field bus isolation
Power Supply start up and Gate Drive
Isolated Sensor Interface
Industrial PLC
GENERAL DESCRIPTION
The ADuM520x1 are dual-channel digital isolators with
isoPower, an integrated, isolated DC/DC converter. Based on
Analog Devices’ iCoupler® technology, the DC/DC converter
provides up to 500 mW of regulated, isolated power at either
5.0V from a 5.0V input supply or 3.3V from a 3.3V or 5.0V
supply. This eliminates the need for a separate isolated DC/DC
converter in low-power isolated designs. Analog Devices’ chip-
scale transformer iCoupler technology is used both for the
isolation of the logic signals as well as for the DC/DC converter.
The result is a small form-factor total-isolation solution.
Figure 1ADuM520x Functional Diagrams
ADuM520x units may be used in combination with ADuM540x
and ADuM5000 with isoPower to achieve higher output power
levels and greater channel counts.
1 Protected by U.S. Patents 5,952,849, 6,873,065. and 7075 329 B2, Other
patents pending.
The ADuM520x isolators provide two independent isolation
channels in a variety of channel configurations and data rates
(see Ordering Guide).
Rev. PrA
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights ofthird parties that may result fromits use. Specifications subject to change without notice. No
licenseis granted byimplication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registeredtrademarks arethe property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
www.analog.com
©2008 Analog Devices, Inc. All rights reserved.
Preliminary Technical Data
ADuM5200/5201/5202
TABLE OF CONTENTS
Applications....................................................................................... 1
Pin Configuration and Function Descriptions........................... 12
Typical Performance Characteristics....................................... 15
Application Information................................................................ 17
Theory of operation ................................................................... 18
PC Board Layout ........................................................................ 18
Thermal Analysis ....................................................................... 18
Propagation Delay-Related Parameters................................... 19
DC Correctness and Magnetic Field Immunity........................... 19
Power Consumption .................................................................. 20
Insulation Lifetime..................................................................... 21
Outline Dimensions....................................................................... 23
Ordering Guide .......................................................................... 23
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics – 5V Primary Input Supply / 5V
Secondary Isolated Supply .......................................................... 3
Electrical Characteristics – 3.3V Primary Input Supply / 3.3V
Secondary Isolated Supply .......................................................... 5
Electrical Characteristics – 5V Primary Input Supply / 3.3V
Secondary Isolated Supply .......................................................... 7
Package Characteristics ............................................................... 9
Insulation and Safety-Related Specifications............................ 9
DIN V VDE V 0884-10 (VDE V 0884-10) Insulation
Characteristics ............................................................................ 10
Recommended Operating Conditions .................................... 10
Absolute Maximum Ratings.......................................................... 11
ESD Caution................................................................................ 11
REVISION HISTORY
Rev. PrA | Page 2 of 23
Preliminary Technical Data
SPECIFICATIONS
ADuM5200/5201/5202
ELECTRICAL CHARACTERISTICS – 5V PRIMARY INPUT SUPPLY / 5V SECONDARY ISOLATED SUPPLY1
4.5 V ≤ VDD1 ≤ 5.5 V, VSEL=VISO; all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 5.0 V, VISO = 5.0 V, VSEL= VISO
.
Table 1.
Parameter
Symbol
VISO
VISO(LINE)
VISO(LOAD)
VISO(RIP)
Min
Typ
5.0
1
1
75
Max
Unit
V
mV/V
%
Test Conditions
Setpoint
4.7
5.4
IISO=0mA
IISO=50mA, VDD1=4.5V to 5.5V
IISO = 10mA to 90mA
Line Regulation
Load Regulation
Output Ripple
5
mVP-P
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
ISO = 100mA
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
ISO = 100mA
I
Output Noise
VISO(N)
200
mVP-P
I
Switching Frequency
PWM Frequency
fOSC
fPWM
180
625
MHz
kHz
DC to 2 Mbps Data Rate2
Maximum Output Supply Current3
Efficiency At Max. Output Supply Current4
IDD1 Supply Current, No VISO load5
25 Mbps Data Rate (CRWZ Grade Only)
IDD1 Supply Current, No VISO Load6
ADuM5200
IISO(max)
IDD1(Q)
100
mA
%
f ≤ 1 MHz, VISO=5V
34
19
IISO = IISO(2,max), f ≤ 1 MHz
IISO = 0mA, f ≤ 1 MHz
30
mA
IDD1(D)
IDD1(D)
IDD1(D)
34
38
41
mA
mA
mA
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
ADuM5201
ADuM5202
Available VISO Supply Current7
ADuM5200
IISO(LOAD)
IISO(LOAD)
IISO(LOAD)
IDD1(Max)
94
mA
mA
mA
mA
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=0pF, f = 0 MHz, VDD = 5V
ADuM5201
92
ADuM5202
IDD1 Supply Current, Full VISO load8
90
290
I
ISO=100mA
I/O Input Currents
IIA, IIB
VIH
VIL
−10
0.7 VISO
+0.01
+10
μA
V
V
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
0.3 VISO
VDD1 − 0.3,
VISO − 0.3
VDD1 − 0.3,
VISO − 0.3
VOAH, VOBH
5.0
4.8
V
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
VOAH, VOBH
V
Logic Low Output Voltages
VOAL, VOBL
VOAL, VOBL
0.0
0.0
0.1
0.4
V
V
IOx = 20 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
AC SPECIFICATIONS
ADuM520xARWZ
Minimum Pulse Width9
Maximum Data Rate10
PW
1000
ns
Mbps
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
1
Propagation Delay11
tPHL, tPLH
PWD
tPSK
55
100
40
50
11
Pulse-Width Distortion, |tPLH − tPHL
Propagation Delay Skew12
Channel-to-Channel Matching13
ADuM520xCRWZ
|
tPSKCD/OD
50
ns
Minimum Pulse Width9
Maximum Data Rate14
Propagation Delay15
PW
40
60
ns
Mbps
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
25
tPHL, tPLH
45
Rev. PrA | Page 3 of 23
ADuM5200/5201/5202
Preliminary Technical Data
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
11
Pulse-Width Distortion, |tPLH − tPHL
Change vs. Temperature
Propagation Delay Skew16
Channel-to-Channel Matching,
Codirectional Channels17
|
PWD
6
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
5
ps/°C
ns
ns
tPSK
tPSKCD
15
6
Channel-to-Channel Matching,
Opposing-Directional Channels17
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient Immunity
at Logic High Output
Common-Mode Transient Immunity
at Logic Low Output
tPSKCD
15
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD or VISO, VCM = 1000 V,
transient magnitude = 800 V
tR/tF
|CMH|
2.5
35
ns
kV/μs
25
25
|CML|
fr
35
kV/μs
Mbps
VIx = 0 V, V = 1000 V,
transient magnitude = 800 V
Refresh Rate
1.0
1 All voltages are relative to their respective ground.
2 The contributions of supply current values for all four channels are combined at identical data rates.
3 VISO supply current available for external use when all data rates are below 2Mbps. At data rates above 2Mbps data I/O channels will draw additional current
proportional to the data rate. Additional supply current associated with an individual channel operating at a given data rate may be calculated as described in the
Power Consumption section. The dynamic I/O channel load must be treated as an external load and be included in the VISO power budget.
4 The power demands of the quiescent operation of the data channels cannot be separated from the power supply section. Efficiency includes the quiescent power
consumed by the I/O channels as part of its internal power consumption.
5 IDD1(Q) is the minimum operating current drawn at the VDD1 pin when there is no external load at VISO and the I/O pins are operating below 2Mbps, requiring no
additional dynamic supply current. It reflects the minimum current operating condition.
6 IDD1(D) is the typical input supply current with all channels simultaneously driven at maximum data rate of 25Mbps with full capacitive load representing the maximum
dynamic load conditions. Resistive loads on the outputs should be treated separately from the dynamic load.
7 This current is available for driving external loads at the VISO pin. All channels are simultaneously driven at maximum data rate of 25Mbps with full capacitive load
representing the maximum dynamic load conditions. Refer to Power Consumption section for calculation of available current at less than maximum data rate.
8 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
9 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
10 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
11
t
PHL
propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
12
t
PSK
is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
load within the recommended operating conditions.
13 Channel-to-channel matching is the absolute value of the difference in propagation delays between the two channels when operated with identical loads.
Rev. PrA| Page 4 of 23
Preliminary Technical Data
ADuM5200/5201/5202
ELECTRICAL CHARACTERISTICS – 3.3V PRIMARY INPUT SUPPLY / 3.3V SECONDARY ISOLATED SUPPLY1
3.0 V ≤ VDD1 ≤ 3.6 V, VSEL=GNDISO; all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 3.3 V, VISO = 3.3 V, VSEL
=
GNDISO
.
Table 2.
Parameter
Symbol
VISO
VISO(LINE)
VISO(LOAD)
VISO(RIP)
Min
Typ
3.3
1
1
50
Max
Unit
V
mV/V
%
Test Conditions
Setpoint
3.13
3.37
IISO=0mA
IISO=37.5 mA, VDD1=3.0V to 3.6V
IISO = 6mA to 54mA
Line Regulation
Load Regulation
Output Ripple
5
mVP-P
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
I
ISO = 90mA
Output Noise
VISO(N)
130
mVP-P
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
ISO = 90mA
I
Switching Frequency
PWM Frequency
fOSC
fPWM
180
625
MHz
kHz
DC to 2 Mbps Data Rate2
Maximum Output Supply Current3
Efficiency At Max. Output Supply Current4
IDD1 Supply Current, No VISO load5
25 Mbps Data Rate (CRWZ Grade Only)
IDD1 Supply Current, No VISO Load6
ADuM5200
IISO(max)
IDD1(Q)
60
mA
%
f ≤ 1 MHz, VISO=3.15V
IISO = IISO(2,max), f ≤ 1 MHz
IISO = 0mA, f ≤ 1 MHz
36
10
20
mA
IDD1(D)
IDD1(D)
IDD1(D)
23
25
28
mA
mA
mA
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
ADuM5201
ADuM5202
Available VISO Supply Current7
ADuM5200
IISO(LOAD)
IISO(LOAD)
IISO(LOAD)
IDD1(Max)
106
105
103
175
mA
mA
mA
mA
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=0pF, f = 0 MHz, VDD = 3.3V,
ADuM5201
ADuM5202
IDD1 Supply Current, Full VISO load8
I
ISO=60mA
Input Currents
Logic High Input Threshold
IIA, IIB
VIH
−10
0.7 × VISO,
0.7 × VIDD1
+0.01
+10
μA
V
0.3 ×
VISO,
0.3 ×
Logic Low Input Threshold
Logic High Output Voltages
VIL
V
VIDD1
VDD1 − 0.2,
VISO − 0.2
VDD1 − 0.5,
V1SO − 0.5
VOAH, VOBH
VOAH, VOBH
5.0
4.8
V
V
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
Logic Low Output Voltages
VOAL, VOBL
VOAL, VOBL
0.0
0.0
0.1
0.4
V
V
IOx = 20 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
AC SPECIFICATIONS
ADuM520xARWZ
Minimum Pulse Width9
Maximum Data Rate10
PW
1000
ns
Mbps
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
1
Propagation Delay11
tPHL, tPLH
PWD
tPSK
60
100
40
50
11
Pulse-Width Distortion, |tPLH − tPHL
Propagation Delay Skew12
Channel-to-Channel Matching13
ADuM520xCRWZ
|
tPSKCD/OD
50
ns
Rev. PrA | Page 5 of 23
ADuM5200/5201/5202
Preliminary Technical Data
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
Minimum Pulse Width13
Maximum Data Rate14
Propagation Delay15
Pulse-Width Distortion, |tPLH − tPHL
Change vs. Temperature
Propagation Delay Skew16
PW
40
ns
Mbps
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
25
tPHL, tPLH
PWD
45
5
60
6
11
|
ns
ps/°C
ns
ns
tPSK
tPSKCD
45
6
Channel-to-Channel Matching,
Codirectional Channels17
Channel-to-Channel Matching,
Opposing-Directional Channels17
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient Immunity
at Logic High Output
Common-Mode Transient Immunity
at Logic Low Output
tPSKCD
15
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD or VISO, VCM = 1000 V,
transient magnitude = 800 V
tR/tF
|CMH|
2.5
35
ns
kV/μs
25
25
|CML|
fr
35
kV/μs
Mbps
VIx = 0 V, V = 1000 V,
transient magnitude = 800 V
Refresh Rate
1.0
1 All voltages are relative to their respective ground.
2 The contributions of supply current values for all four channels are combined at identical data rates.
3 VISO supply current available for external use when all data rates are below 2Mbps. At data rates above 2Mbps data I/O channels will draw additional current
proportional to the data rate. Additional supply current associated with an individual channel operating at a given data rate may be calculated as described in the
Power Consumption section. The dynamic I/O channel load must be treated as an external load and be included in the VISO power budget.
4 The power demands of the quiescent operation of the data channels cannot be separated from the power supply section. Efficiency includes the quiescent power
consumed by the I/O channels as part of its internal power consumption.
5 IDD1(Q) is the minimum operating current drawn at the VDD1 pin when there is no external load at VISO and the I/O pins are operating below 2Mbps, requiring no
additional dynamic supply current. It reflects the minimum current operating condition.
6 IDD1(D) is the typical input supply current with all channels simultaneously driven at maximum data rate of 25Mbps with full capacitive load representing the maximum
dynamic load conditions. Resistive loads on the outputs should be treated separately from the dynamic load.
7 This current is available for driving external loads at the VISO pin. All channels are simultaneously driven at maximum data rate of 25Mbps with full capacitive load
representing the maximum dynamic load conditions. Refer to Power Consumption section for calculation of available current at less than maximum data rate.
8 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
9 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
10 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
11
t
PHL
propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
12
t
PSK
is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
load within the recommended operating conditions.
13 Channel-to-channel matching is the absolute value of the difference in propagation delays between the two channels when operated with identical loads.
Rev. PrA| Page 6 of 23
Preliminary Technical Data
ADuM5200/5201/5202
ELECTRICAL CHARACTERISTICS – 5V PRIMARY INPUT SUPPLY / 3.3V SECONDARY ISOLATED SUPPLY1
4.5 V ≤ VDD1 ≤ 5.5 V, VSEL= GNDISO, all voltages are relative to their respective ground. All min/max specifications apply over the entire
recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD = 5.0 V, VISO = 3.3 V, VSEL
=
GNDISO
.
Table 3.
Parameter
Symbol
VISO
VISO(LINE)
VISO(LOAD)
VISO(RIP)
Min
Typ
3.3
1
1
50
Max
Unit
V
mV/V
%
Test Conditions
Setpoint
3.0
3.6
IISO=0mA
IISO=50mA, VDD1=4.5V to 5.5V
IISO = 10mA to 100mA
Line Regulation
Load Regulation
Output Ripple
5
mVP-P
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
I
ISO = 90mA
Output Noise
VISO(N)
130
mVP-P
20MHz Bandwidth, CBO=0.1μF ║ 10μF,
ISO = 90mA
I
Switching Frequency
PWM Frequency
fOSC
fPWM
180
625
MHz
kHz
DC to 2 Mbps Data Rate2
Maximum Output Supply Current3
Efficiency At Max. Output Supply Current4
IDD1 Supply Current, No VISO load5
25 Mbps Data Rate (CRWZ Grade Only)
IDD1 Supply Current, No VISO Load6
ADuM5200
IISO(max)
IDD1(Q)
100
mA
%
f ≤ 1 MHz, VISO=3.0V
IISO = IISO(2,max), f ≤ 1 MHz
IISO = 0mA, f ≤ 1 MHz
30
9
13
mA
IDD1(D)
IDD1(D)
IDD1(D)
22
25
27
mA
mA
mA
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
IISO = 0mA, CL=15pF, f = 12.5 MHz
ADuM5201
ADuM5202
Available VISO Supply Current7
ADuM5200
IISO(LOAD)
IISO(LOAD)
IISO(LOAD)
IDD1(Max)
96
mA
mA
mA
mA
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=15pF, f = 12.5 MHz
CL=0pF, f = 0 MHz, VDD = 5V,
ADuM5201
95
ADuM5202
IDD1 Supply Current, Full VISO load8
93
230
I
ISO=100mA
Input Currents
IIA, IIB
VIH
VIL
−10
0.7 VISO
+0.01
+10
μA
V
V
Logic High Input Threshold
Logic Low Input Threshold
Logic High Output Voltages
0.3 VISO
VDD1 − 0.2,
VISO − 0.2
VDD1 − 0.5,
V1SO − 0.5
VOAH, VOBH
5.0
4.8
V
IOx = −20 μA, VIx = VIxH
IOx = −4 mA, VIx = VIxH
VOAH, VOBH
V
Logic Low Output Voltages
VOAL, VOBL
VOAL, VOBL
0.0
0.0
0.1
0.4
V
V
IOx = 20 μA, VIx = VIxL
IOx = 4 mA, VIx = VIxL
AC SPECIFICATIONS
ADuM520xARWZ
Minimum Pulse Width9
Maximum Data Rate10
PW
1000
ns
Mbps
ns
ns
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
1
Propagation Delay11
tPHL, tPLH
PWD
tPSK
60
100
40
50
11
Pulse-Width Distortion, |tPLH − tPHL
Propagation Delay Skew12
Channel-to-Channel Matching13
ADuM520xCRWZ
|
tPSKCD/OD
50
ns
Minimum Pulse Width13
Maximum Data Rate14
Propagation Delay15
PW
40
60
ns
Mbps
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
25
tPHL, tPLH
45
Rev. PrA | Page 7 of 23
ADuM5200/5201/5202
Preliminary Technical Data
Parameter
Symbol
Min
Typ
Max
Unit
Test Conditions
11
Pulse-Width Distortion, |tPLH − tPHL
Change vs. Temperature
Propagation Delay Skew16
Channel-to-Channel Matching,
Codirectional Channels17
|
PWD
6
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
5
ps/°C
ns
ns
tPSK
tPSKCD
45
6
Channel-to-Channel Matching,
Opposing-Directional Channels17
Output Rise/Fall Time (10% to 90%)
Common-Mode Transient Immunity
at Logic High Output
Common-Mode Transient Immunity
at Logic Low Output
tPSKCD
15
ns
CL = 15 pF, CMOS signal levels
CL = 15 pF, CMOS signal levels
VIx = VDD or VISO, VCM = 1000 V,
transient magnitude = 800 V
tR/tF
|CMH|
2.5
35
ns
kV/μs
25
25
|CML|
fr
35
kV/μs
Mbps
VIx = 0 V, V = 1000 V,
transient magnitude = 800 V
Refresh Rate
1.0
1 All voltages are relative to their respective ground.
2 The contributions of supply current values for all four channels are combined at identical data rates.
3 VISO supply current available for external use when all data rates are below 2Mbps. At data rates above 2Mbps data I/O channels will draw additional current
proportional to the data rate. Additional supply current associated with an individual channel operating at a given data rate may be calculated as described in the
Power Consumption section. The dynamic I/O channel load must be treated as an external load and be included in the VISO power budget.
4 The power demands of the quiescent operation of the data channels cannot be separated from the power supply section. Efficiency includes the quiescent power
consumed by the I/O channels as part of its internal power consumption.
5 IDD1(Q) is the minimum operating current drawn at the VDD1 pin when there is no external load at VISO and the I/O pins are operating below 2Mbps, requiring no
additional dynamic supply current. It reflects the minimum current operating condition.
6 IDD1(D) is the typical input supply current with all channels simultaneously driven at maximum data rate of 25Mbps with full capacitive load representing the maximum
dynamic load conditions. Resistive loads on the outputs should be treated separately from the dynamic load.
7 This current is available for driving external loads at the VISO pin. All channels are simultaneously driven at maximum data rate of 25Mbps with full capacitive load
representing the maximum dynamic load conditions. Refer to Power Consumption section for calculation of available current at less than maximum data rate.
8 IDD1(MAX) is the input current under full dynamic and VISO load conditions.
9 The minimum pulse width is the shortest pulse width at which the specified pulse-width distortion is guaranteed.
10 The maximum data rate is the fastest data rate at which the specified pulse-width distortion is guaranteed.
11
t
PHL
propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is
measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal.
12
t
PSK
is the magnitude of the worst-case difference in tPHL and/or tPLH that is measured between units at the same operating temperature, supply voltages, and output
load within the recommended operating conditions.
13 Channel-to-channel matching is the absolute value of the difference in propagation delays between the two channels when operated with identical loads.
Rev. PrA| Page 8 of 23
Preliminary Technical Data
ADuM5200/5201/5202
PACKAGE CHARACTERISTICS
Table 4.
Parameter
Symbol
RI-O
CI-O
Min
Typ
1012
2.2
Max
Unit
Ω
pF
Test Conditions
Resistance (Input-to-Output)1
Capacitance (Input-to-Output)1
Input Capacitance2
f = 1 MHz
CI
4.0
pF
IC Junction to Ambient Thermal Resistance
θCA
45
°C/W
Thermocouple located at center of
package underside, test conducted on 4
layer board with thin traces3.
Thermal Shutdown
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
TSSD
TSSD-HYS
150
20
°C
°C
TJ Rising
1 Device considered a 2-terminal device; Pins 1, 2, 3, 4, 5, 6, 7, and 8 shorted together and Pins 9, 10, 11, 12, 13, 14, 15, and 16 shorted together.
2 Input capacitance is from any input data pin to ground.
3 Refer to the Power Considerations section for thermal model definitions
Table 5.
UL (Pending)
CSA (Pending)
VDE (Pending)
Recognized under 1577 component
recognition program1
Approved under CSA Component
Acceptance Notice #5A
Certified according to DIN V VDE V 0884-10
(VDE V 0884-10):2006-122
Reinforced insulation,
2500 V rms isolation voltage
Reinforced insulation per CSA 60950-1-03
and IEC 60950-1,
Reinforced insulation, 560 V peak
300 V rms (424 V peak)maximum working
voltage
File E214100
File 205078
File 2471900-4880-0001
1 In accordance with UL1577, each ADuM520x is proof tested by applying an insulation test voltage ≥3000 V rms for 1 sec (current leakage detection limit = 5 μA).
2 In accordance with DIN V VDE V 0884-10, each ADuM520x is proof tested by applying an insulation test voltage ≥1050 V peak for 1 sec (partial discharge detection
limit = 5 pC). The * marking branded on the component designates DIN V VDE V 0884-10 approval.
INSULATION AND SAFETY-RELATED SPECIFICATIONS
Table 6.
Parameter
Symbol Value
Unit Conditions
Rated Dielectric Insulation Voltage
Minimum External Air Gap (Clearance)
2500
>8 min
V rms 1 minute duration
L(I01)
L(I02)
mm
Measured from input terminals to output terminals,
shortest distance through air
Minimum External Tracking (Creepage)
>8 min
mm
Measured from input terminals to output terminals,
shortest distance path along body
Minimum Internal Gap (Internal Clearance)
Tracking Resistance (Comparative Tracking Index)
Isolation Group
0.017 min mm
Insulation distance through insulation
DIN IEC 112/VDE 0303 Part 1
Material Group (DIN VDE 0110, 1/89, Table 1)
CTI
>175
IIIa
V
Rev. PrA | Page 9 of 23
ADuM5200/5201/5202
Preliminary Technical Data
DIN V VDE V 0884-10 (VDE V 0884-10) INSULATION CHARACTERISTICS
These isolators are suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by
protective circuits. The * marking on packages denotes DIN V VDE V 0884-10 approval.
Table 7.
Description
Conditions
Symbol Characteristic Unit
Installation Classification per DIN VDE 0110
For Rated Mains Voltage ≤ 150 V rms
For Rated Mains Voltage ≤ 300 V rms
For Rated Mains Voltage ≤ 400 V rms
Climatic Classification
Pollution Degree per DIN VDE 0110, Table 1
Maximum Working Insulation Voltage
Input-to-Output Test Voltage, Method B1
I to IV
I to III
I to II
40/105/21
2
VIORM
VPR
560
1050
V peak
V peak
VIORM × 1.875 = VPR, 100% production test, tm = 1 sec,
partial discharge < 5 pC
Input-to-Output Test Voltage, Method A
After Environmental Tests Subgroup 1
After Input and/or Safety Test Subgroup 2 VIORM × 1.2 = VPR, tm = 60 sec, partial discharge < 5 pC
and Subgroup 3
VIORM × 1.6 = VPR, tm = 60 sec, partial discharge < 5 pC
VPR
896
672
V peak
V peak
Highest Allowable Overvoltage
Safety-Limiting Values
Transient overvoltage, tTR = 10 seconds
Maximum value allowed in the event of a failure
( see Figure 2)
VTR
4000
V peak
Case Temperature
Side 1 Current
Side 2 Current
TS
IS1
IS2
RS
150
265
335
>109
°C
mA
mA
Ω
Insulation Resistance at TS
VIO = 500 V
RECOMMENDED OPERATING CONDITIONS
600
500
400
300
200
100
0
Table 8.
Parameter
Symbol
Min Max Unit
Operating Temperature
Supply Voltages1
VDD @ VSEL=0V
VDD @ VSEL=5V
Minimum Load
TA
−40 +105 °C
VDD
VDD
IISO(MIN)
3.0
4.5
10
5.5
5.5
V
V
mA
1 All voltages are relative to their respective ground.
0
50
100
150
200
Ambient Tempearture (°C)
Figure 2. Thermal Derating Curve, Dependence of Safety Limiting Values on
Case Temperature, per DIN EN 60747-5-2
Rev. PrA| Page 10 of 23
Preliminary Technical Data
ADuM5200/5201/5202
ABSOLUTE MAXIMUM RATINGS
Ambient temperature = 25°C, unless otherwise noted.
Table 9.
Stresses above those listed under Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress
rating only; functional operation of the device at these or any
other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Parameter
Rating
Storage Temperature (TST)
−55°C to +150°C
Ambient Operating Temperature (TA) −40°C to +105°C
1
Supply Voltages (VDD, VISO
)
−0.5 V to +7.0 V
Input Voltage
(VIA, VIB, VE1, VE2,RCSEL, VSEL
−0.5 V to VDDI + 0.5 V
1, 2
)
Output Voltage
−0.5 V to VDDO + 0.5 V
(VOA, VOB)1, 2
Average Output Current per Pin3
Side 1 (IO1)
ESD CAUTION
−18 mA to +18 mA
Side 2(IOISO
)
−22 mA to +22 mA
−100 kV/μs to +100 kV/μs
Common-Mode Transients4
1 All voltages are relative to their respective ground.
2 VDDI and VDDO refer to the supply voltages on the input and output sides of a
given channel, respectively. See the PC Board Layout section.
3 See Figure 2 for maximum rated current values for various temperatures.
4 Refers to common-mode transients across the insulation barrier. Common-
mode transients exceeding the Absolute Maximum Ratings may cause latch-
up or permanent damage.
Table 10. Maximum Continuous Working Voltage1
Parameter
Max
Unit
Constraint
AC Voltage, Bipolar Waveform
AC Voltage, Unipolar Waveform
Basic Insulation
424
V peak
50-year minimum lifetime
600
560
V peak
V peak
Maximum approved working voltage per IEC 60950-1
Maximum approved working voltage per IEC 60950-1 and VDE
V 0884-10
Reinforced Insulation
DC Voltage
Basic Insulation
Reinforced Insulation
600
560
V peak
V peak
Maximum approved working voltage per IEC 60950-1
Maximum approved working voltage per IEC 60950-1 and VDE
V 0884-10
1 Refers to continuous voltage magnitude imposed across the isolation barrier. See the Insulation Lifetime section for more details.
Table 11. Truth Table (Positive Logic)
RCIN
RCSEL
Output
VSEL
VDDI
VISO
VIX
VOX
Output
Input
Input1 Input
Output Input
Notes
X
H
H
H
H
L
H
L
5.0V
5.0V
3.3V
3.3V
X
5.0V
3.3V
5.0V
3.3V
X
X
X
X
X
X
X
H
L
X
X
X
X
X
X
H
L
Master mode operation, Self Regulating
Master mode operation, Self Regulating
Master mode operation, Self Regulating
Master mode operation, Self Regulating
Slave mode operation, Regulation from another isoPower part.
Low power mode, Converter disabled
Data outputs valid for any active power configuration.
Data outputs valid for any active power configuration
X
X
H
L
X
EXT-PWM
X
L
L
L
X
0V
X
X
X
H
X
X
L
X
X
X
X
X
X
X
X
X
X
WARNING! This combination of RCIN and RCSEL is prohibited.
Damage will occur on the secondary due to exess output
voltage at VISO. RCin must be either Low or a PWM signal from a
master isoPower part..
Rev. PrA | Page 11 of 23
Preliminary Technical Data
ADuM5200/5201/5202
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Figure 3. ADuM5200 Pin Configuration
Table 12. ADuM5200 Pin Function Descriptions
Pin No. Mnemonic Description
1
VDD1
Primary Supply Voltage 3.0V to 5.5 V.
2,8
GND1
Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected, and it is recommended that both
pins be connected to a common ground.
3
4
5
VIA
VIB
RCIN
Logic Input A.
Logic Input B.
Regulation Control Input, In slave power configuration (RCSEL=Low), this pin is connected to the RCOUT of a master
isoPower device, or tied low to disable the converter. In Master/Stand alone mode(RCSEL=High) this pin has no
function. This pin is weakly pulled to low. In Noisy environments it should be tied to low or to a PWM control source.
Warning -This pin must not be tied high if RCSEL is low, this combination will cause excessive volatge on the
secondary, damaging the ADuM5000 and possibly devices that it powers.
6
RCSEL
Control input, Determines self regulation (CTL High) mode or Slave mode(CTL Low)allowing external regulation. This
pin is weakly pulled to high. In noisy environments it should be tied either high or low.
7
NC
No Internal Connection
9,15
GNDISO
Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins be
connected to a common ground.
10
11
VE2
VSEL
Data Enable Input, When High or NC the Secondary outputs are active, when Low the outputs are in a high Z state..
Output Voltage Selection: When VSEL = VISO then the Viso set point is 5.0V, When VSEL = GNDISO Then the VISO setpoint
is 3.3V. In Slave regulation mode, this pin has no function.
12
13
14
16
NC
VOB
VOA
VISO
No Internal Connection.
Logic Output B.
Logic Output A.
Secondary Supply Voltage Output for Secondary Isolaton electronics and External Loads, 3.3V (VSEL Low) or 5.0V (VSEL
High), 5.0V output Functioanlity not guaranteed for a 3.3V primary supply input.
Rev. PrA | Page 12 of 23
Preliminary Technical Data
ADuM5200/5201/5202
Figure 4. ADuM5201 Pin Configuration
Table 13. ADuM5201 Pin Function Descriptions
Pin No. Mnemonic Description
1
VDD1
Primary Supply Voltage 3.0V to 5.5 V.
2,8
GND1
Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected, and it is recommended that both
pins be connected to a common ground.
3
4
5
VIA
VOB
RCIN
Logic Input A.
Logic Output B.
Regulation Control Input, In slave power configuration (RCSEL=Low), this pin is connected to the RCOUT of a master
isoPower device, or tied low to disable the converter. In Master/Stand alone mode(RCSEL=High) this pin has no
function. This pin is weakly pulled to low. In Noisy environments it should be tied to low or to a PWM control source.
Warning -This pin must not be tied high if RCSEL is low, this combination will cause excessive volatge on the
secondary, damaging the ADuM5000 and possibly devices that it powers.
6
RCSEL
Control input, Determines self regulation (CTL High) mode or Slave mode(CTL Low)allowing external regulation. This
pin is weakly pulled to high. In noisy environments it should be tied either high or low.
7
VE1
Data Enable Input, When High or NC the Primary output is active, when Low the outputs are in a high Z state..
9,15
GNDISO
Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins be
connected to a common ground.
10
11
VE2
VSEL
Data Enable Input, When High or NC the Secondary output is active, when Low the outputs are in a high Z state..
Output Voltage Selection: When VSEL = VISO then the Viso set point is 5.0V, When VSEL = GNDISO Then the VISO setpoint
is 3.3V. In Slave regulation mode, this pin has no function.
12
13
14
16
NC
VIB
VOA
VISO
No Internal Connection.
Logic Input B.
Logic Output A.
Secondary Supply Voltage Output for Secondary Isolaton electronics and External Loads, 3.3V (VSEL Low) or 5.0V (VSEL
High), 5.0V output Functioanlity not guaranteed for a 3.3V primary supply input.
Rev. PrA | Page 13 of 23
ADuM5200/5201/5202
Preliminary Technical Data
Figure 5. ADuM5202 Pin Configuration
Table 14. ADuM5202 Pin Function Descriptions
Pin No. Mnemonic Description
1
VDD1
Primary Supply Voltage 3.0V to 5.5 V.
2,8
GND1
Ground 1. Ground reference for isolator primary. Pin 2 and Pin 8 are internally connected, and it is recommended that both
pins be connected to a common ground.
3
4
5
VOA
VOB
RCIN
Logic Output A.
Logic Output B.
Regulation Control Input, In slave power configuration (RCSEL=Low), this pin is connected to the RCOUT of a master
isoPower device, or tied low to disable the converter. In Master/Stand alone mode(RCSEL=High) this pin has no
function. This pin is weakly pulled to low. In Noisy environments it should be tied to low or to a PWM control source.
Warning -This pin must not be tied high if RCSEL is low, this combination will cause excessive volatge on the
secondary, damaging the ADuM5000 and possibly devices that it powers.
6
RCSEL
Control input, Determines self regulation (CTL High) mode or Slave mode(CTL Low)allowing external regulation. This
pin is weakly pulled to high. In noisy environments it should be tied either high or low.
7
VE1
Data Enable Input, When High or NC the Primary output is active, when Low the outputs are in a high Z state..
9,15
GNDISO
Ground reference for Isolator Side 2. Pin 9 and Pin 15 are internally connected, and it is recommended that both pins be
connected to a common ground.
10
11
NC
VSEL
No Internal Connection
Output Voltage Selection: When VSEL = VISO then the Viso set point is 5.0V, When VSEL = GNDISO Then the VISO setpoint
is 3.3V..
12
13
14
16
NC
VIB
VOA
VISO
No Internal Connection.
Logic Input B.
Logic Input A.
Secondary Supply Voltage Output for Secondary Isolaton electronics and External Loads, 3.3V (VSEL Low) or 5.0V (VSEL
High), 5.0V output Functioanlity not guaranteed for a 3.3V primary supply input.
Rev. PrA| Page 14 of 23
Preliminary Technical Data
ADuM5200/5201/5202
TYPICAL PERFORMANCE CHARACTERISTICS
0.4
0.35
0.3
0.25
0.2
0.15
3.3V in / 3.3V out
0.1
5V in / 3.3V out
0.05
0
5V in / 5V out
0
0.02
0.04
0.06
0.08
0.1
0.12
Output Current (A)
Figure 9. Typical VISO Transient Load Response 5V Output 10%-90%
Load Step
Figure 6. Typical Power Supply Efficiency at 5V/5V, 3.3V/3.3V and
5V/3.3V
0.12
0.1
0.08
0.06
0.04
3.3V in / 3.3V out
5V in / 3.3V out
0.02
5V in / 5V out
0
0
0.05
0.1
0.15
0.2
0.25
0.3
0.35
Input Current (A)
Figure 10. Typical Transient Load Response 3V Output 10%-100% Load
Step
Figure 7. Typical Isolated Output Supply Current, IISO as a function of
external load, no dynamic current draw at 5V/5V, 3.3V/3.3V and
5V/3.3V
4
3.5
3
2.5
2
Idd
1.5
1
Pow er
0.5
0
3
3.5
4
4.5
5
5.5
6
6.5
Input Voltage (V)
Figure 8. Typical Short Circuit Input Current and Power vs. VDD supply
voltage
Rev. PrA | Page 15 of 23
ADuM5200/5201/5202
Preliminary Technical Data
20.00
16.00
12.00
8.00
5V in 5V out
3.3V in 3.3V out
5V in 3.3V out
4.00
0.00
0
5
10
15
20
25
DATA RATE(Mbps)
Figure 14 Typical ICH Supply Current per Reverse Data Channel (15 pF
Output Load
Figure 11. Typical Viso=5V Output Voltage Ripple at 90% Load
5.00
5V
3.3V
4.00
3.00
2.00
1.00
0.00
0
5
10
15
20
25
DATA RATE (Mbps)
Figure 15. Typical IISO(D) Dynamic Supply Current per Input
Figure 12. Typical Viso=3.3V Output Voltage Ripple at 90% Load
20
3.00
5V in 5V out
5V
2.50
3.3V in 3.3V out
5V in 3.3V out
16
12
8
3.3V
2.00
1.50
1.00
0.50
0.00
4
0
0
5
10
15
20
25
0
5
10
15
20
25
DATA RATE(Mbps)
DAT A RAT E (M bps)
Figure 13. . Typical ICH Supply Current per Forward Data Channel (15 pF
Output Load
Figure 16. Typical IISO(D) Dynamic Supply Current per Output (15pF
Output Load)
Rev. PrA| Page 16 of 23
ADuM5200/5201/5202
TERMINOLOGY
IDD1(Q)
tPLH Propagation Delay
IDD1(Q) is the minimum operating current drawn at the VDD1 pin
when there is no external load at VISO and the I/O pins are oper-
ating below 2 Mbps, requiring no additional dynamic supply
current. IDDIO(Q) reflects the minimum current operating
condition.
tPLH propagation delay is measured from the 50% level of the
rising edge of the VIx signal to the 50% level of the rising edge of
the VOx signal.
Propagation Delay Skew (tPSK
)
tPSK is the magnitude of the worst-case difference in tPHL and/or
IDD1(D)
tPLH that is measured between units at the same operating
temperature, supply voltages, and output load within the
recommended operating conditions.
IDD1(D) is the typical input supply current with all channels
simultaneously driven at maximum data rate of 25 Mbps with
full capacitive load representing the maximum dynamic load
conditions. Resistive loads on the outputs should be treated
separately from the dynamic load.
Channel-to-Channel Matching
Channel-to-channel matching is the absolute value of the
difference in propagation delays between the two channels
when operated with identical loads.
IDD1(MAX)
IDD1(MAX) is the input current under full dynamic and VISO load
conditions.
Minimum Pulse Width
The minimum pulse width is the shortest pulse width at which
the specified pulse width distortion is guaranteed.
tPHL Propagation Delay
tPHL propagation delay is measured from the 50% level of the
falling edge of the VIx signal to the 50% level of the falling edge
of the VOx signal.
Maximum Data Rate
The maximum data rate is the fastest data rate at which the
specified pulse width distortion is guaranteed.
Rev. PrA | Page 17 of 23
ADuM5200/5201/5202
Preliminary Technical Data
APPLICATION INFORMATION
Note that the total lead length between the ends of the low ESR
capacitor and the input power supply pin must not exceed 4 mm.
Installing the bypass capacitor with traces more than 4 mm in
length may result in data corruption. A bypass between Pin 1 and
Pin 8 and between Pin 9 and Pin 16 should also be considered
unless both common ground pins are connected together close
to the package.
THEORY OF OPERATION
The DC/DC converter section of the ADuM520x works on
principles that are common to most modern power supply
designs. It is implemented as a secondary side controller with
isolated PWM feedback. VDD1 power is supplied to an oscillating
circuit that switches current into a chip-scale air core
transformer. Power is transferred to the secondary side where it
is rectified to a DC voltage. The power is then regulated to
either 3.3or 5V and supplied to the secondary side data section
and to the VISO pin for external use. Active feedback is
implemented by a digital feedback path. The output regulator
creates a pulse width modulated signal which is coupled to the
input side and switches the oscillator on and off regulating the
power. Feedback allows for significantly higher power,
efficiency, and synchronization of multiple supplies.
The ADuM520x provides its Regulation Control output
(RCout) signal that can be connected to other isoPower devices.
This allows a single regulator to control multiple power
modules without contention. When auxiliary power modules
are present, the VSIO pins can be connected together to work as a
single supply. Since there is only one feedback control path, the
supplies will work together seamlessly. The ADuM520x can
only be a source of Regulation Control, other devices
Figure 17. Recommended Printed Circuit Board Layout
In applications involving high common-mode transients, care
should be taken to ensure that board coupling across the isolation
barrier is minimized. Furthermore, the board layout should be
designed such that any coupling that does occur equally affects
all pins on a given component side. Failure to ensure this could
cause voltage differentials between pins exceeding the device’s
Absolute Maximum Ratings, specified in Table 9 thereby
leading to latch-up and/or permanent damage.
There is hysteresis into the input VDD input voltage detect
circuit. Once the DC/DC converter is active, the input voltage
must be decreased below the turn on threshold to disable the
converter. This feature ensures that the converter does not go
into oscillation due to noisy input power.
The ADuM520x is a power device that dissipates about 1W of
power when fully loaded and running at maximum speed.
Since it is not possible to apply a heat sink to an isolation
device, the device primarily depends on heat dissipation into
the PCB through the GND pins. If the device will be used at
high ambient temperatures, care should be taken to provide a
thermal path from the GND pins to the PCB ground plane.
The board layout in Figure 17 shows enlarged pads for pins 2, 8,
9, and 15. Multiple vias should be implemented from the pad to
the ground plane. This will significantly reduce the
temperatures inside of the chip. The dimensions of the
expanded pads are left to discretion of the designer and the
available board space.
PC BOARD LAYOUT
The ADuM520x digital isolator with a ½W isoPower integrated
DC/DC converter requires no external interface circuitry for
the logic interfaces. Power supply bypassing is required at the
input and output supply pins (Figure 17). The power supply
section of the ADuM520X uses a very high oscillator frequency
to efficiently pass power through its chip scale transformers. In
addition, the normal operation of the data section of the
iCoupler introduces switching transients on the power supply
pins.
Bypass capacitors are required for several operating frequencies.
Noise suppression requires a low inductance high frequency
capacitor, ripple suppression and proper regulation require a
large value capacitor. These are most conveniently connected
between Pins 1 and 2 for VDD1 and between Pins 15 and 16 for
THERMAL ANALYSIS
The ADuM520x parts consist of four internal die, attached to a
split lead frame with two die attach paddles. For the purposes
of thermal analysis it is treated as a thermal unit with the
highest junction temperature reflected in the θJA from Table 4.
The value of θJA is based on measurements taken with the part
mounted on a JEDEC standard 4 layer board with fine width
traces and still air. Under normal operating conditions the
ADuM520x will operate at full load across the full temperature
range without derating the output current. However, following
the recommendations in the PC Board Layout section will
VISO. To suppress noise and reduce ripple, a parallel
combination of at least two capacitors is required. The
recommended capacitor values are 0. 1 μF, and 6.6μF. It is
strongly recommended that a very low inductance ceramic or
equivalent capacitor be used for the smaller value.
Rev. PrA | Page 18 of 23
ADuM5200/5201/5202
decrease the thermal resistance to the PCB allowing increased
thermal margin it high ambient temperatures.
β is magnetic flux density (gauss).
N is the number of turns in the receiving coil.
rn is the radius of the nth turn in the receiving coil (cm).
PROPAGATION DELAY-RELATED PARAMETERS
Given the geometry of the receiving coil in the ADuM520x and
an imposed requirement that the induced voltage be at most
50% of the 0.5 V margin at the decoder, a maximum allowable
magnetic field is calculated as shown in Figure 19.
Propagation delay is a parameter that describes the time it takes
a logic signal to propagate through a component. The propagation
delay to a logic low output may differ from the propagation
delay to a logic high.
100
INPUT (V
)
50%
IX
tPLH
tPHL
10
OUTPUT (V
)
50%
OX
1
Figure 18. Propagation Delay Parameters
Pulse width distortion is the maximum difference between
these two propagation delay values and is an indication of how
accurately the input signal’s timing is preserved.
0.1
0.01
Channel-to-channel matching refers to the maximum amount
the propagation delay differs between channels within a single
ADuM520x component.
0.001
1k
10k
100k
1M
10M
100M
MAGNETIC FIELD FREQUENCY (Hz)
Propagation delay skew refers to the maximum amount the
propagation delay differs between multiple ADuM520x
components operating under the same conditions.
Figure 19. Maximum Allowable External Magnetic Flux Density
For example, at a magnetic field frequency of 1 MHz, the
maximum allowable magnetic field of 0.2 kgauss induces a
voltage of 0.25 V at the receiving coil. This is about 50% of the
sensing threshold and does not cause a faulty output transition.
Similarly, if such an event were to occur during a transmitted
pulse (and was of the worst-case polarity), it would reduce the
received pulse from >1.0 V to 0.75 V—still well above the 0.5 V
sensing threshold of the decoder.
DC CORRECTNESS AND MAGNETIC FIELD IMMUNITY
Positive and negative logic transitions at the isolator input
cause narrow (~1 ns) pulses to be sent to the decoder via the
transformer. The decoder is bistable and is, therefore, either set
or reset by the pulses, indicating input logic transitions. In the
absence of logic transitions at the input for more than 1 μs, a
periodic set of refresh pulses indicative of the correct input state
are sent to ensure dc correctness at the output. If the decoder
receives no internal pulses of more than about 5 μs, the input
side is assumed to be unpowered or nonfunctional, in which
case the isolator output is forced to a default state (see Error!
Reference source not found.) by the watchdog timer circuit.
The preceding magnetic flux density values correspond to
specific current magnitudes at given distances from the
ADuM520x transformers. Figure 20 expresses these allowable
current magnitudes as a function of frequency for selected
distances. As shown, the ADuM520x is extremely immune and
can be affected only by extremely large currents operated at
high frequency very close to the component. For the 1 MHz
example noted, one would have to place a 0.5 kA current 5 mm
away from the ADuM520x to affect the component’s operation.
The limitation on the ADuM520x’s magnetic field immunity is
set by the condition in which induced voltage in the transformer’s
receiving coil is sufficiently large to either falsely set or reset the
decoder. The following analysis defines the conditions under
which this may occur. The 3 V operating condition of the
ADuM520x is examined because it represents the most
susceptible mode of operation.
The pulses at the transformer output have an amplitude greater
than 1.0 V. The decoder has a sensing threshold at about 0.5 V, thus
establishing a 0.5 V margin in which induced voltages can be
tolerated. The voltage induced across the receiving coil is given by
2
V = (−dβ/dt)∑πrn ; n = 1, 2, … , N
where:
Rev. PrA | Page 19 of 23
ADuM5200/5201/5202
Preliminary Technical Data
1000
direction, which means that the input on the secondary side of
the part. Both figures assume a typical 15pF load. The
following relationship allows the total IDD1 current to be
calculated.
DISTANCE = 1m
100
10
IDD1 = (IISO × VISO)/(E × VDD1) + ∑ ICHn; n = 1to 4
Equation 1
DISTANCE = 100mm
1
Where :
DISTANCE = 5mm
I
DD1 is the total supply input current.
0.1
ICHn is the current drawn by a single channel determined from
Figure 15 or Figure 16 depending on channel direction.
I
ISO is the current drawn by the secondary side external loads.
0.01
1k
10k
100k
1M
10M
100M
E is the power supply efficiency at 100mA load from Figure 6
at the VISO and VDD1 condition of interest.
MAGNETIC FIELD FREQUENCY (Hz)
Figure 20. Maximum Allowable Current
for Various Current-to-ADuM520x Spacings
The maximum external load can be calculated by subtracting
the dynamic output load from the maximum allowable load.
Note that at combinations of strong magnetic field and high
frequency, any loops formed by printed circuit board traces
could induce error voltages sufficiently large enough to trigger
the thresholds of succeeding circuitry. Care should be taken in
the layout of such traces to avoid this possibility.
IISO(LOAD) = IISO(MAX) - ∑ IISO(D)n; n = 1to 4
Equation 2
Where:
POWER CONSUMPTION
I
ISO(LOAD) is the current available to supply an external
secondary side load.
ISO(MAX) is the maximum external secondary side load current
available at VISO
ISO(D)n is the dynamic load current drawn from VISO by an
The VDD1 power supply input provides power to the iCoupler
data channels as well as the power converter. For this reason,
the quiescent currents drawn by the data converter and the
primary and secondary I/O channels cannot be determined
separately. All of these quiescent power demands have been
combined into the IDD1(Q) current as shown in Figure 21. The
total IDD1 supply current will be the sum of the quiescent
operating current, dynamic current IDD1(D) demanded by the I/O
channels, and any external IISO load.
I
.
I
input or output channel, as shown in Figure 15 and Figure 16.
Data is presented assuming a typical 15pF load
The preceding analysis assumes a 15pF capacitive load on each
data output. If a capacitive load larger than 15pF, he additional
current must be included in the analysis of IDD1 and IISO(LOAD)
.
To determine IDD1 in Equation 1, additional primary side
dynamic output current IAOD is added directly to IDD1
.
Additional secondary side dynamic output current IAOD is added
to IISO on a per channel basis.
To determine IISO(LOAD) in Equation 2, additional secondary side
output current IAOD is subtracted from IISO(MAX) on a per channel
basis.
For each output channel with CL greater than 15pF, the
additional capacitive supply current is given by:
IAOD = 0.5 × 10−3 × (CL-15) × VISO) × (2f − fr) f > 0.5 fr
Equation 3
Figure 21 Power consumption within the ADuM520x
Where:
Both Dynamic I/O current is consumed only when operating at
channel at speeds higher than the rate fr. Since each channel will
have a dynamic current that is determined by its data rate,
Figure 15 shows the current for a channel in the forward
direction, which means that the input on the primary side of the
part. Figure 16 shows the current for a channel in the reverse
CL is the output load capacitance. (pF).
V
ISO is the output supply voltage (V).
f is the input logic signal frequency (MHz); it is half of the
input data rate expressed in units of Mbps.
fr is the input channel refresh rate (Mbps).
Rev. PrA | Page 20 of 23
ADuM5200/5201/5202
regulated by the master device allowing multiple isoPower parts
to be combined in parallel while sharing the load equally.
When the ADuM5000 is configured as a Stand alone unit, it
generates its own PWM feedback signal to regulate itself and
slave devices.
POWER CONSIDERATIONS
The ADuM520x Converter Primary side, Data input channels
on the Primary side and Data input channels on the Secondary
side are all protected from premature operation by Under
Voltage Lock Out (UVLO) circuitry. Below the minimum
operating voltage, the power converter holds its oscillator
inactive and all input channel drivers and refresh circuits are
idle. Outputs are held in their default low state. This is to
prevent transmission of undefined states during power up and
power down operations.
The ADuM5000 can act as a master or a slave deice, the
ADuM5400 can only be a master/stand alone device, and the
ADuM5200 can only be a slave/Stand alone device. This means
that the ADuM5000, ADuM5200, and ADuM5400 can only be
used in certain master slave combinations as listed in Table 15.
Slave
ADuM5000 ADuM5200 ADuM5400
During application of power to VDD1, the primary side circuitry
is held idle until the UVLO preset voltage is reached. At that
time the data channels initialize to their default low output state
until they receive data pulses from the secondary side.
ADuM5000
ADuM5200
ADuM5400
Y
N
Y
Y
N
Y
N
N
N
Master
Table 15 Allowed combinations of isoPower Parts
The primary side input channels sample the input and send
pulse to the inactive secondary output. The secondary side
converter begins to accept power from the primary and the VISO
voltage starts to rise. When the secondary side UVLO is
reached, the secondary side outputs are initialized to their
default low state until data, either a transition or a DC refresh
pulse, is received from the corresponding primary side input. It
could take up to 1μS after the secondary side is initialized for
the state of the output to correlate with the primary side input.
The allowed combinations of master and slave configured parts
listed in Table 15 is sufficient to make any combination of
power and channel count. Table 16 illustrates how isoPower
devices can provide many combinations of data channel count
and multiples of the single unit power.
Number of Data Channels
0
2
4
6
1 Unit
Power
ADuM5000
Master
ADuM520x ADuM540x ADuM540x
Master
Master
Master
ADuM12xx
Secondary side inputs sample their state and transmit it to the
Primary side. Outputs are valid one propagation delay after the
secondary side becomes active.
2 Unit
Power
ADuM5000
Master
ADuM5000
Slave
ADuM500x ADuM540x ADuM540x
Master Master Master
ADuM5200 ADuM5200 ADuM520x
Slave Slave Slave
Because the rate of charge of the secondary side is dependant on
loading conditions, input voltage and output voltage level
selected, care should be taken in the design to allow the
converter to stabilize before valid data is required.
3 Unit
Power
ADuM5000
Master
ADuM5000
Slave
ADuM5000
Slave
ADuM5000 ADuM540x ADuM540x
Master Master Master
ADuM5000 ADuM5000 ADuM520x
Slave Slave Slave
ADuM520x ADuM5000 ADuM5000
Slave Slave Slave
When power is removed from VDD1, the primary side converter
and coupler shut down when UVLO is reached. The secondary
side stops receiving power and starts to discharge. The outputs
on the secondary side will hold the last state that they received
from the primary until either the UVLO level is reached and the
outputs are put in their default low state or the output detects a
lack of activity from the input and the outputs are set to default
before secondary power reaches UVLO.
Table 16 Configurations for Power and Data Channels
INSULATION LIFETIME
All insulation structures will eventually break down when
subjected to voltage stress over a sufficiently long period. The
rate of insulation degradation is dependant on the
characteristics of the voltage waveform applied across the
insulation. In addition to the testing performed by the
regulatory agencies, Analog Devices carries out an extensive set
of evaluations to determine the lifetime of the insulation
structure within the ADuM520x.
INCREASING AVAILABLE POWER
The ADuM5200 devices are designed with capability of running
in combination with other compatible isoPower devices. The
RCIN and RCSEL pins allow the ADuM5200 to receive a PWM
signal from another device through the RCIN pin and act as a
slave to that control signal. The RCSEL pin chooses whether the
part will act as a stand alone self regulated device or slave
device. When the ADuM5200 is acting as a slave, its power is
ADI performs accelerated life testing using voltage levels higher
than the rated continuous working voltage. Acceleration factors
Rev. PrA | Page 21 of 23
ADuM5200/5201/5202
Preliminary Technical Data
for several operating conditions are determined. These factors
allow calculation of the time to failure at the actual working
voltage. The values shown in Table 10 summarize the peak
voltage for 50 years of service life for a bipolar ac operating
condition, and the maximum CSA/VDE approved working
voltages. In many cases, the approved working voltage is higher
than 50-year service life voltage. Operation at these high
working voltages can lead to shortened insulation life in some
cases.
RATED PEAK VOLTAGE
0V
Figure 22. Bipolar AC Waveform
RATED PEAK VOLTAGE
The insulation lifetime of the ADuM520x depends on the
voltage waveform type imposed across the isolation barrier. The
iCoupler insulation structure degrades at different rates
depending on whether the waveform is bipolar ac, unipolar ac,
or dc. Figure 22, Figure 23, and Figure 24 illustrate these
different isolation voltage waveforms.
0V
Figure 23. Unipolar AC Waveform
RATED PEAK VOLTAGE
Bipolar ac voltage is the most stringent environment. The goal
of a 50-year operating lifetime under the ac bipolar condition
determines ADI’s recommended maximum working voltage.
0V
Figure 24. DC Waveform
In the case of unipolar ac or dc voltage, the stress on the
insulation is significantly lower. This allows operation at higher
working voltages while still achieving a 50 year service life. The
working voltages listed in Table 10 can be applied while
maintaining the 50-year minimum lifetime provided the voltage
conforms to either the unipolar ac or dc voltage cases. Any cross
insulation voltage waveform that does not conform to Figure
231or Figure 24 should be treated as a bipolar ac waveform and
its peak voltage should be limited to the 50 year lifetime voltage
value listed in Table 10.
1 The voltage presented in Figure 23 is shown as sinusoidal for illustration
purposes only. It is meant to represent any voltage waveform varying
between 0 and some limiting value. The limiting value can be positive or
negative, but the voltage cannot cross 0V.
Rev. PrA | Page 22 of 23
ADuM5200/5201/5202
OUTLINE DIMENSIONS
10.50 (0.4134)
10.10 (0.3976)
16
1
9
8
7.60 (0.2992)
7.40 (0.2913)
10.65 (0.4193)
10.00 (0.3937)
1.27 (0.0500)
BSC
0.75 (0.0295)
0.25 (0.0098)
2.65 (0.1043)
2.35 (0.0925)
× 45°
0.30 (0.0118)
0.10 (0.0039)
8°
0°
0.51 (0.0201)
0.31 (0.0122)
SEATING
PLANE
COPLANARITY
0.10
1.27 (0.0500)
0.40 (0.0157)
0.33 (0.0130)
0.20 (0.0079)
COMPLIANT TO JEDEC STANDARDS MS-013-AA
CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS
(IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR
REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN.
Figure 25. 16-Lead Standard Small Outline Package [SOIC_W]
Wide Body (RW-16)
Dimension shown in millimeters and (inches)
ORDERING GUIDE
Number of Number of Maximum Maximum
Maximum
Inputs,
VDD1 Side
Inputs,
VDD2 Side
Data Rate Propagation Pulse Width
(Mbps)
Package
Model
Delay, 5 V (ns) Distortion (ns) Temperature Range (°C) Option
ADuM5200ARWZ1,2
ADuM5200CRWZ1,2
ADuM5201ARWZ1,2
ADuM5201CRWZ1,2
ADuM5202ARWZ1,2
ADuM5202CRWZ 1,2
2
0
1
25
1
25
1
25
100
70
40
3
−40 to +105
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
16-Lead SOIC_W
2
1
1
0
0
0
1
1
2
2
−40 to +105
−40 to +105
−40 to +105
−40 to +105
−40 to +105
100
70
40
3
100
70
40
3
1
Tape and reel are available. The additional “-RL7” suffice designates a 7” (1,000 units) tape and reel options.
Z = Pb-free part.
2
Rev. PrA | Page 23 of 23
PR07540-0-5/08(PrA)
相关型号：
ADUM5201CRWZ-RL
Dual-Channel Isolators with Integrated DC-to-DC Converter (1/1 channel directionality)
ADI
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