ADM6711SAKS-REEL7 [ADI]
Microprocessor Supervisory Circuit in 4-Lead SC70; 微处理器监控电路采用4引脚SC70
| 型号： | ADM6711SAKS-REEL7 |
| 厂家： | 
ADI |
| 描述： | Microprocessor Supervisory Circuit in 4-Lead SC70 |
| 文件： | 总12页 (文件大小：226K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Microprocessor Supervisory
Circuit in 4-Lead SC70
Data Sheet
ADM6711/ADM6713
FEATURES
FUNCTIONAL BLOCK DIAGRAMS
Specified over temperature
Low power consumption (12 μA)
Precision monitoring of 2.5 V, 3 V, 3.3 V,
and 5 V power supply voltages
Reset timeout period of 140 ms (minimum)
Manual reset input
ADM6711
V
RESET
CC
GENERATOR
240ms
RESET
GND
V
REF
MR
DEBOUNCE
Output stages
Push-pull RESET output (ADM6711)
Open-drain RESET output (ADM6713)
Reset assertion down to 1 V VCC
Power supply glitch immunity
4-lead SC70 package
Figure 1.
ADM6713
V
CC
RESET
GENERATOR
240ms
RESET
GND
V
REF
APPLICATIONS
Microprocessor systems
Computers
MR
DEBOUNCE
Controllers
Intelligent instruments
Automotive systems
Figure 2.
GENERAL DESCRIPTION
The ADM6711/ADM6713 are reset generator circuits suitable
for use in microprocessor-based systems. They provide a reset
signal on power-up, power-down, and whenever the supply
voltage falls below a preset threshold. In addition, both parts
have a debounced manual reset input so that a reset signal can
also be initiated with an external switch or logic signal.
The parts are highly reliable with accurate voltage references
and immunity to fast, negative-going transients on VCC. Low
current consumption and space-efficient, 4-lead SC70 packaging
make the ADM6711/ADM6713 ideal for use in low power
portable applications.
With six different reset threshold options available ranging from
2.32 V to 4.63 V, the ADM6711/ADM6713 are suitable for
monitoring 2.5 V, 3 V, 3.3 V, and 5 V supplies. A reset timeout
of at least 140 ms occurs when VCC rises above the threshold.
This gives the supply voltage time to stabilize before the
microprocessor starts up.
V
V
CC
*R
PULL-UP
CC
MICROPROCESSOR
SYSTEM
ADM6711/
ADM6713
MR
RESET
RESET
GND
GND
The ADM6711 has a push-pull output, so no additional external
components are needed. The ADM6713 open-drain output
requires an external pull-up resistor that can be connected to
a voltage higher than VCC, if desired.
*ADM6713 ONLY
Figure 3. Typical Operating Circuit
Rev. B
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 of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication 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
www.analog.com
Fax: 781.461.3113 ©2006–2011 Analog Devices, Inc. All rights reserved.
ADM6711/ADM6713
Data Sheet
TABLE OF CONTENTS
Features .............................................................................................. 1
Typical Performance Characteristics ..............................................7
Circuit Description............................................................................8
Manual Reset Input.......................................................................8
Power Supply Glitch Immunity...................................................8
Applications....................................................................................... 1
Functional Block Diagrams............................................................. 1
General Description......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Pin Configuration and Function Descriptions............................. 6
ADM6713
Output Logic Levels .....................................8
RESET
Ensuring a Valid
Output Down To VCC = 0 V ............8
RESET
Outline Dimensions..........................................................................9
Ordering Guide .............................................................................9
REVISION HISTORY
9/11—Rev. A to Rev. B
Changes to Input Threshold Parameter, Table 1 .......................... 4
Updated Outline Dimensions......................................................... 9
12/06—Rev. 0 to Rev. A
Updated Format..................................................................Universal
Changes to Specifications Table...................................................... 3
Changes to Figure 10........................................................................ 8
Changes to Ordering Guide ............................................................ 9
8/03—Revision 0: Initial Version
Rev. B | Page 2 of 12
Data Sheet
ADM6711/ADM6713
SPECIFICATIONS
VCC = full operating range; TA = TMIN to TMAX; VCC typ = 5 V for L/M models, 3.3 V for T/S models, 3 V for R models, and 2.5 V for Z models,
unless otherwise noted.
Table 1.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
SUPPLY
VCC Operating Voltage Range
1.0
1.2
5.5
5.5
35
V
V
μA
TA = 0°C to 70°C
TA = −40°C to +125°C
VCC < 5.5 V, ADM671_L/M,
TA = −40°C to +85°C
VCC < 3.6 V, ADM671_R/S/T/Z,
TA = −40°C to +85°C
VCC < 5.5 V, ADM671_L/M,
TA = 85°C to 125°C
VCC < 3.6 V, ADM671_R/S/T/Z,
TA = 85°C to 125°C
Supply Current
16
12
30
60
60
μA
μA
μA
RESET VOLTAGE THRESHOLD
ADM671_L
4.56
4.50
4.44
4.31
4.25
4.20
3.04
3.00
2.95
2.89
2.85
2.81
2.59
2.55
2.52
2.28
2.25
2.22
4.63
4.38
3.08
2.93
2.63
2.32
4.70
4.75
4.82
4.45
4.50
4.56
3.11
3.15
3.21
2.96
3.00
3.05
2.66
2.70
2.74
2.35
2.38
2.42
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
TA = 25°C
TA = −40°C to +85°C
TA = 85°C to 125°C
ADM671_M
ADM671_T
ADM671_S
ADM671_R
ADM671_Z
V
V
RESET THRESHOLD TEMPERATURE COEFFICIENT
VCC to RESET DELAY
30
20
ppm/°C
μs
V
CC = VTH to (VTH − 100 mV)
RESET ACTIVE TIMEOUT PERIOD
140
100
240
460
640
ms
ms
TA = −40°C to +85°C
TA = 85°C to 125°C
RESET OUTPUT VOLTAGE
Low (ADM6711/ADM6713)
0.3
0.4
0.3
V
V
VCC = VTH min, ISINK = 1.2 mA,
ADM671_R/S/T/Z
VCC = VTH min, ISINK = 3.2 mA,
ADM671_L/M
VCC >1.0 V, ISINK = 50 μA
VCC > VTH max, ISOURCE = 500 μA,
ADM6711R/S/T/Z
VCC > VTH max, ISOURCE = 800 μA,
ADM6711L/M
V
V
High (ADM6711)
0.8 VCC
0.8 VCC
V
Rev. B | Page 3 of 12
ADM6711/ADM6713
Data Sheet
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
RESET OPEN-DRAIN OUTPUT LEAKAGE CURRENT
MANUAL RESET (MR)
1
ꢀA
VCC > VTH, RESET deasserted
Input Threshold
0.3 VCC
V
VIL
0.7 VCC
V
VIH
Pull-Up Resistance
Minimum Pulse width
Glitch Immunity
Reset Delay
10
1
20
kΩ
ꢀs
ns
ns
100
200
Rev. B | Page 4 of 12
Data Sheet
ADM6711/ADM6713
ABSOLUTE MAXIMUM RATINGS
TA = 25°C, unless otherwise noted.
Table 3.
Threshold Options
RESET
Model
RESET Threshold (V)
Table 2.
ADM671_L
ADM671_M
ADM671_T
ADM671_S
ADM671_R
ADM671_Z
4.63
4.38
3.08
2.93
2.63
2.32
Parameter
VCC
RESET (Push-Pull)
RESET (Open-Drain)
MR
Rating
−0.3 V to +6 V
−0.3 V to (VCC + 0.3 V)
−0.3 V to +6 V
−0.3 V to (VCC + 0.3 V)
Input Current
VCC, MR
20 mA
Output Current
RESET
ESD CAUTION
20 mA
Rate of Rise, VCC
θJA Thermal Impedance, SC70
Operating Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
100 V/ꢀs
146°C/W
−40°C to +125°C
−65°C to +150°C
300°C
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.
Rev. B | Page 5 of 12
ADM6711/ADM6713
Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
GND
1
ADM6711/
ADM6713
TOP VIEW
4
V
CC
(Not to Scale)
2
3
RESET
MR
Figure 4. Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
2
GND
RESET
Ground Reference for All Signals (0 V).
Active Low Logic Input. RESET remains low while VCC is below the reset threshold and remains low for
240 ms (typical) after VCC rises above the reset threshold.
3
4
MR
VCC
Manual Reset. This active low debounced input ignores input pulses of 100 ns (typical) and is guaranteed
to accept input pulses greater than 1 ꢀs. Leave floating when not used.
Supply Voltage Being Monitored.
Rev. B | Page 6 of 12
Data Sheet
ADM6711/ADM6713
TYPICAL PERFORMANCE CHARACTERISTICS
12
1.007
1.006
1.005
1.004
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
I
@ V = 5.5V
CC
DD
10
8
6
4
I
@ V = 3V
DD
CC
2
0
I
@ V = 1V
DD CC
–40
–20
0
20
30
50
70
85
100
120
–40
–20
0
20
30
50
70
85
100
120
TEMPERATURE (°C)
TEMPERATURE (°C)
Figure 5. Supply Current vs. Temperature
RESET
Figure 8.
Threshold Deviation vs. Temperature
1000
400
900
800
700
600
500
400
300
200
350
300
250
200
150
100
50
ADM671_L/M
V
= 20mV
OD
ADM671_R/S/T/Z
V
V
= 125mV
= 200mV
OD
OD
100
0
0
–40
–20
0
20
30
50
70
85
100
120
0
10
100
1000
TEMPERATURE (°C)
RESET COMPARATOR OVERDRIVE, V – V (mV)
TH CC
RESET
Figure 6. Power-Down
Delay vs. Temperature: ADM671_R/
RESET
Figure 9. Maximum Transient Duration (Without Causing a
RESET
Pulse) vs.
ADM671_S/ADM671_T/ADM671_Z
Comparator Overdrive
900
800
700
600
500
400
300
200
100
0
V
= 20mV
OD
V
= 125mV
= 200mV
OD
V
OD
–40
–20
0
20
30
50
70
85
100
120
TEMPERATURE (°C)
RESET
Figure 7. Power-Down
Delay vs. Temperature: ADM671_L/
ADM671_M
Rev. B | Page 7 of 12
ADM6711/ADM6713
Data Sheet
CIRCUIT DESCRIPTION
ADM6713
OUTPUT LOGIC LEVELS
RESET
The ADM6711/ADM6713 are designed to protect the integrity
of a system’s operation by ensuring the proper operation of the
system during power-up, power-down, and brownout conditions.
The ADM6713 open-drain
output is designed for use with
RESET
an external pull-up resistor. This resistor can be tied to VCC or
any other reasonable voltage level, offering the flexibility to use
the ADM6713 to drive a variety of different logic level circuitry.
When the ADM6711/ADM6713 are powered up, the
RESET
output remains low for a period equal to the typical reset active
timeout period. This is designed to give the system time to power
up correctly and for the power supply to stabilize before any
devices are brought out of reset and allowed to begin executing
instructions. Initializing a system in this way provides a more
reliable startup for microprocessor systems.
ENSURING A VALID
VCC = 0 V
OUTPUT DOWN TO
RESET
When VCC falls below 0.8 V, the ADM6711/ADM6713
RESET
output no longer sinks current, and a high impedance CMOS
logic input connected to may drift to undetermined
RESET
logic levels. To eliminate this problem, a pull-down resistor is
connected from to ground. A 100 kΩ resistor is large enough
MANUAL RESET INPUT
The ADM6711/ADM6713 manual reset (
system operator to reset a system by means of an external manual
switch. Alternatively, a logic signal from another digital circuit
) input allows the
MR
RESET
and small enough to pull
not to load
to ground.
RESET
RESET
V
CC
can be used to trigger a reset via the
input.
MR
The
input ignores negative-going pulses faster than 100 ns
MR
(typical) and is guaranteed to accept any negative-going input
pulse of a duration greater than or equal to 1 μs. The
V
CC
ADM6711
RESET
RESET
is held low and for 240 ms
100kΩ
output remains low while
(typical) after
MR
GND
returns high.
MR
If
is connected to long cables or is used in a noisy environment,
MR
ADM6711
then placing a 0.1 μF capacitor between the
input and ground
MR
helps to remove any fast, negative-going transients.
V
RESET
GENERATOR
240ms
CC
RESET
V
REF
POWER SUPPLY GLITCH IMMUNITY
The ADM6711/ADM6713 contain internal filtering circuitry
that provides immunity to fast transient glitches on the power
supply line. Figure 9 illustrates glitch immunity performance by
showing the maximum transient duration without causing a reset
pulse for glitches with amplitudes in the range of 1 mV to 1000 mV.
MR
GND
DEBOUNCE
RESET
Figure 10. Ensuring a Valid
Output Down to VCC = 0 V
Glitch immunity makes the ADM6711/ADM6713 suitable for
use in noisy environments. Mounting a 0.1 μF decoupling
capacitor as close as possible to the VCC pin improves glitch
immunity further.
Rev. B | Page 8 of 12
Data Sheet
ADM6711/ADM6713
OUTLINE DIMENSIONS
2.20
1.80
1.35
1.15
4
1
3
2.40
1.80
2
0.65 BSC
1.00
0.50 BSC
0.40
0.10
1.10
0.80
0.80
0.18
0.10
0.30
0.10
SEATING
PLANE
0.10 MAX
*
0.70
0.50
COPLANARITY
0.10
0.30
0.15
*
PACKAGE OUTLINE CORRESPONDS IN FULL TO EIAJ SC82
EXCEPT FOR WIDTH OF PIN 2 AS SHOWN.
Figure 11. 4-Lead Thin Shrink Small Outline Transistor Package [SC70]
(KS-4)
Dimensions shown in millimeters
ORDERING GUIDE
RESET
Threshold (V)
4.63
Temperature
Range
Package
Description
Package
Option
Ordering
Quantity (k)
Model1
Branding
M0B
M4U
M4U
M0C
M0C
M86
M0D
M4A
M0D
M4A
M0E
M4B
M0E
M4B
M0F
M5F
M0F
M5F
M0G
M4H
M0G
M4H
M0H
M87
M87
M0J
ADM6711LAKS-REEL
ADM6711LAKSZ-REEL
ADM6711LAKSZ-REEL7
ADM6711MAKS-REEL
ADM6711MAKS-REEL7
ADM6711MAKSZ-REEL7
ADM6711TAKS-REEL
ADM6711TAKSZ-REEL
ADM6711TAKS-REEL7
ADM6711TAKSZ-REEL7
ADM6711SAKS-REEL
ADM6711SAKSZ-REEL
ADM6711SAKS-REEL7
ADM6711SAKSZ-REEL7
ADM6711RAKS-REEL
ADM6711RAKSZ-REEL
ADM6711RAKS-REEL7
ADM6711RAKSZ-REEL7
ADM6711ZAKS-REEL
ADM6711ZAKSZ-REEL
ADM6711ZAKS-REEL7
ADM6711ZAKSZ-REEL7
ADM6713LAKS-REEL
ADM6713LAKSZ-REEL
ADM6713LAKSZ-REEL7
ADM6713MAKS-REEL
ADM6713MAKS-REEL7
ADM6713MAKSZ-REEL7
ADM6713TAKS-REEL
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
10
10
3
10
3
4.63
4.63
4.38
4.38
4.38
3.08
3.08
3.08
3.08
2.93
2.93
2.93
2.93
2.63
2.63
2.63
3
10
10
3
3
10
10
3
3
10
10
3
2.63
2.32
2.32
2.32
3
10
10
3
2.32
3
4.63
4.63
4.63
4.38
4.38
4.38
3.08
10
10
3
10
3
M0J
M88
M0K
3
10
Rev. B | Page 9 of 12
ADM6711/ADM6713
Data Sheet
RESET
Threshold (V)
Temperature
Range
Package
Description
Package
Option
Ordering
Quantity (k)
Model1
Branding
M0K
M89
M0L
M57
M0L
M57
M0M
M4S
M0M
M4S
ADM6713TAKS-REEL7
ADM6713TAKSZ-REEL7
ADM6713SAKS-REEL
ADM6713SAKSZ-REEL
ADM6713SAKS-REEL7
ADM6713SAKSZ-REEL7
ADM6713RAKS-REEL
ADM6713RAKSZ-REEL
ADM6713RAKS-REEL7
ADM6713RAKSZ-REEL7
ADM6713ZAKS-REEL
ADM6713ZAKSZ-REEL
ADM6713ZAKS-REEL7
ADM6713ZAKSZ-REEL7
3.08
3.08
2.93
2.93
2.93
2.93
2.63
2.63
2.63
2.63
2.32
2.32
2.32
2.32
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
−40°C to +125°C
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
4-Lead SC70
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
KS-4
3
3
10
10
3
3
10
10
3
3
10
10
3
M0N
M4R
M0N
M4R
3
1 Z = RoHS Compliant Part.
Rev. B | Page 10 of 12
Data Sheet
NOTES
ADM6711/ADM6713
Rev. B | Page 11 of 12
ADM6711/ADM6713
NOTES
Data Sheet
©2006–2011 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
D03754-0-9/11(B)
Rev. B | Page 12 of 12
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