BD2045AFJ-E2 [ROHM]
Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.5A, PDSO8, SOP-8;
| 型号： | BD2045AFJ-E2 |
| 厂家： | 
ROHM |
| 描述： | Buffer/Inverter Based Peripheral Driver, 1 Driver, 0.5A, PDSO8, SOP-8 PC 驱动 光电二极管 接口集成电路 驱动器 |
| 文件： | 总25页 (文件大小：670K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Datasheet
High Side Switch ICs 1ch
BD2045AFJ BD2055AFJ
●General Description
●Key Specifications
Input voltage range:
ON resistance :
Single channel high side switch IC for USB port is a
high side switch having over current protection used in
power supply line of universal serial bus (USB).
N-channel power MOSFET with low on resistance and
low supply current are realized in this IC.
2.7V to 5.5V
80mΩ(Typ.)
0.3A min., 0.8A max.
0.01μA (Typ.)
Over current threshold:
Standby current:
Operating temperature range:
-40℃ to +85℃
Over current detection circuit, thermal shutdown circuit,
under voltage lockout and soft start circuit are built in.
●Package
SOP-J8
W(Typ.) D(Typ.) H (Max.)
4.90mm x 6.00mm x 1.65mm
●Features
Low on resistance 80mΩ Nch MOSFET Switch.
Continuous current load 0.25A
Control input logic
¾ Active-Low :
¾ Active-High:
BD2045AFJ
BD2055AFJ
Soft start circuit
Over current detection
Thermal shutdown
Under voltage lockout
Open drain error flag output
Reverse-current protection when power switch off
TTL Enable input
SOP-J8
1.2ms typical rise time
●Applications
USB hub in consumer appliances, Car accessory, PC,
PC peripheral equipment, and so forth
●Typical Application Circuit
5V(typ.)
VBUS
GND
IN
OUT
OUT
OUT
D+
+
CIN
C L
-
D-
IN
GND
EN( /EN ) /OC
●Lineup
Min.
Over current threshold
Typ.
Control input logic
Package
Orderable Part Number
Max.
0.3A
0.3A
0.5A
0.5A
0.8A
Low
SOP-J8
SOP-J8
Reel of 2500 BD2045AFJ-E2
Reel of 2500 BD2055AFJ-E2
0.8A
High
○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
1/22
TSZ22111･14･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Block Diagram
GND
IN
OUT
OUT
OUT
/OC
Charge
pump
UVLO
OCD
IN
Gate logic
TSD
EN(/EN)
●Pin Configurations
BD2055AFJ
TOP VIEW
BD2045AFJ
OUT
OUT
OUT
/OC
GND
8
7
6
5
1
2
3
4
OUT
OUT
OUT
/OC
GND
8
7
6
5
1
2
3
4
IN
IN
IN
IN
EN
/EN
●Pin Descriptions
◎BD2045AFJ
Pin No.
1
Symbol
I / O
I
Pin function
GND
Ground.
Power supply input.
2, 3
4
IN
I
I
Input terminal to the power switch and power supply input terminal of the internal circuit.
When used, connect each pin outside.
Enable input.
Power switch on at Low level.
High level input > 2.0V, Low level input < 0.8V.
Error flag output.
Low at over current, thermal shutdown.
Open drain output.
/EN
/OC
OUT
5
O
O
Power switch output.
When used, connect each pin outside.
6, 7, 8
◎BD2055AFJ
Pin No.
1
Symbol
GND
I / O
I
Pin function
Ground.
Power supply input.
2, 3
4
IN
I
I
Input terminal to the power switch and power supply input terminal of the internal circuit.
When used, connect each pin outside.
Enable input.
Power switch on at High level.
High level input > 2.0V, Low level input < 0.8V
EN
Error flag output.
5
/OC
O
O
Low at over current, thermal shutdown.
Open drain output.
Power switch output.
When used, connect each pin outside.
6, 7, 8
OUT
www.rohm.com
TSZ02201-0E3E0H300130-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
2/22
TSZ22111･15･001
11.Mar.2013 Rev.001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Supply voltage
Enable voltage
/OC voltage
VIN
VEN, V/EN
V/OC
-0.3 to 6.0
-0.3 to 6.0
-0.3 to 6.0
10
V
V
V
/OC current
IS/OC
VOUT
TSTG
mA
V
OUT voltage
-0.3 to 6.0
-55 to 150
560*1
Storage temperature
°C
mW
Power dissipation
PD
*1 In case of exceeding Ta = 25°C, 4.48mW should be reduced per 1°C.
●Recommended Operating Range
Parameter
Operating voltage
Symbol
Ratings
Unit
VIN
TOPR
ILO
2.7 to 5.5
-40 to 85
V
Operating temperature
°C
Continuous output current
0
to 250
mA
●Electrical Characteristics
◎BD2045AFJ (Unless otherwise specified, VIN = 5.0V, Ta = 25°C)
Limits
Parameter
Operating Current
Symbol
IDD
Unit
Condition
Min.
-
Typ.
90
Max.
120
μA
μA
V/EN = 0V, OUT = OPEN
V/EN = 5V, OUT = OPEN
Standby Current
ISTB
V/EN
-
0.01
1
2.0
-
-
-
-
V
V
V
High input
/EN input voltage
-
-
0.8
0.4
Low input
V/EN
Low input 2.7V≤ VIN ≤4.5V
/EN input current
I/EN
V/OC
IL/OC
RON
-1.0
0.01
-
1.0
0.5
1
μA
V
V/EN = 0V or V/EN = 5V
I/OC = 5mA
/OC output LOW voltage
/OC output leak current
ON resistance
-
-
0.01
80
μA
mΩ
A
V/OC = 5V
-
100
0.8
IOUT = 250mA
Over-current Threshold
ITH
ISC
0.3
0.5
VIN = 5V, VOUT = 0V,
CL = 100μF (RMS)
Output current at short
0.3
0.5
0.7
A
Output rise time
Output turn on time
Output fall time
TON1
TON2
-
-
-
-
1.2
1.5
1
10
20
20
40
ms
ms
μs
RL = 20Ω , CL = OPEN
TOFF1
TOFF2
Output turn off time
3
μs
VTUVH
VTUVL
2.1
2.0
2.3
2.2
2.5
2.4
V
V
Increasing VIN
Decreasing VIN
UVLO threshold
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
3/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Electrical Characteristics - continued
◎BD2055AFJ (Unless otherwise specified, VIN = 5.0V, Ta = 25°C)
Limits
Parameter
Operating Current
Symbol
IDD
Unit
Condition
Min.
-
Typ.
90
Max.
120
μA
μA
VEN = 5V, OUT = OPEN
VEN = 0V, OUT = OPEN
Standby Current
ISTB
VEN
-
0.01
1
2.0
-
-
-
-
V
V
V
High input
EN input voltage
-
-
0.8
0.4
Low input
VEN
Low input 2.7V≤ VIN ≤4.5V
EN input current
IEN
-1.0
0.01
-
1.0
0.5
1
μA
V
VEN = 0V or VEN = 5V
I/OC = 5mA
/OC output LOW voltage
/OC output leak current
ON resistance
V/OC
IL/OC
RON
-
-
-
0.01
80
μA
mΩ
V/OC = 5V
100
IOUT = 250mA
Over-current Threshold
Output current at short
ITH
ISC
0.3
0.3
0.5
0.5
0.8
0.7
A
A
VIN = 5V, VOUT = 0V,
CL = 100μF (RMS)
Output rise time
Output turn on time
Output fall time
TON1
TON2
-
-
1.2
1.5
1
10
20
ms
ms
μs
μs
V
RL = 20Ω , CL = OPEN
TOFF1
TOFF2
VTUVH
VTUVL
-
20
Output turn off time
-
3
40
2.1
2.0
2.3
2.2
2.5
2.4
Increasing VIN
Decreasing VIN
UVLO Threshold
V
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
4/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Measurement Circuit
VIN
VIN
A
1uF
1uF
GND
OUT
GND
OUT
IN
OUT
OUT
/OC
IN
IN
OUT
OUT
/OC
IN
RL
CL
EN(/EN)
EN(/EN)
VEN (V/EN
)
VEN (V/EN
)
A. Operating current
B. EN, /EN input voltage, Output rise, fall time
VIN
VIN
VIN
VIN
10k
1uF
1uF
I/OC
GND
OUT
GND
OUT
IN
OUT
OUT
/OC
IN
OUT
OUT
/OC
IN
IN
CL
EN(/EN)
IOUT
EN(/EN)
VEN(V/EN
)
VEN(V/EN
)
C. ON resistance, Over current detection
D. /OC output LOW voltage
Figure 1. Measurement circuit
●Timing Diagram
TOFF1
TOFF1
TON1
TON1
VOUT
VOUT
90%
90%
90%
90%
10%
TOFF2
10%
10%
10%
TOFF2
TON2
TON2
V
/EN
VEN
50%
50%
50%
50%
Figure 2. Timing diagram (BD2045AFJ)
Figure 3. Timing diagram (BD2055AFJ)
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
5/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves
120
120
100
80
60
40
20
0
VIN=5.0V
Ta=25°C
100
80
60
40
20
0
2
3
4
5
6
-50
0
50
100
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[ ]
℃
Figure 5. Operating current
EN,/EN Enable
Figure 4. Operating current
EN,/EN Enable
1.0
0.8
0.6
0.4
0.2
0.0
1.0
0.8
0.6
0.4
0.2
0.0
Ta=25°C
VIN=5.0V
2
3
4
5
6
-50
0
50
100
]
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
℃
Figure 6. Operating current
EN,/EN Disable
Figure 7. Operating current
EN,/EN Disable
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
6/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves - continued
2.0
2.0
1.5
1.0
0.5
0.0
VIN=5.0V
Ta=25°C
1.5
Low to High
High to Low
Low to High
High to Low
1.0
0.5
0.0
-50
0
50
100
2
3
4
5
6
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 9. EN,/EN input voltage
Figure 8. EN,/EN input voltage
0.5
0.4
0.3
0.2
0.1
0.0
0.5
VIN=5.0V
Ta=25°C
0.4
0.3
0.2
0.1
0.0
-50
0
50
100
2
3
4
5
6
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
℃
Figure 11. /OC output LOW voltage
]
Figure 10. /OC output LOW voltage
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
7/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves - continued
200
200
150
100
50
Ta=25°C
150
VIN=5.0V
100
50
0
0
2
3
4
5
6
-50
0
50
100
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 12. ON resistance
Figure 13. ON resistance
1.00
0.75
0.50
0.25
0.00
1.00
0.75
0.50
0.25
0.00
Ta=25°C
VIN=5.0V
2
3
4
5
6
-50
0
50
100
SUPPLY VOLTAGE : V [V]
AMBIENT TEMPERATURE : Ta[ ]
IN
℃
Figure 15. Output current at shortcircuit
Figure 14. Output current at shortcircuit
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
8/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves - continued
5.0
5.0
4.0
3.0
2.0
1.0
0.0
Ta=25°C
4.0
VIN=5.0V
3.0
2.0
1.0
0.0
2
3
4
5
6
-50
0
50
100
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 16. Output rise time
Figure 17. Output rise time
5.0
4.0
3.0
2.0
1.0
0.0
5.0
4.0
3.0
2.0
1.0
0.0
Ta=25°C
VIN=5.0V
-50
0
50
100
2
3
4
5
6
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 18. Output turn on time
Figure 19. Output turn on time
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
9/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves - continued
5.0
5.0
4.0
3.0
2.0
1.0
0.0
VIN=5.0V
Ta=25°C
4.0
3.0
2.0
1.0
0.0
-50
0
50
100
2
3
4
5
6
SUPPLY VOLTAGE : VIN[V]
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 20. Output fall time
Figure 21. Output fall time
5.0
4.0
3.0
2.0
1.0
0.0
5.0
4.0
3.0
2.0
1.0
0.0
VIN=5.0V
Ta=25°C
2
3
4
5
6
-50
0
50
100
SUPPLY VOLTAGE : VIN[V]
Figure 22. Output turn off time
AMBIENT TEMPERATURE : Ta[ ]
℃
Figure 23. Output turn off time
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
10/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Performance Curves - continued
1.0
0.8
0.6
0.4
0.2
0.0
2.5
2.4
VUVLOH
2.3
VUVLOL
2.2
2.1
2.0
-50
0
50
100
-50
0
50
100
AMBIENT TEMPERATURE : Ta[ ]
℃
AMBIENT TEMPERATURE : Ta[
]
℃
Figure 24. UVLO threshold voltage
Figure 25. UVLO hysteresis voltage
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
11/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Wave Forms
V/EN
V/EN
(5V/div.)
(5V/div.)
V/OC
(5V/div.)
V/OC
(5V/div.)
VOUT
(5V/div.)
VOUT
(5V/div.)
VIN=5V
RL=20Ω
CL=100μF
VIN=5V
RL=20Ω
CL=100μF
IOUT
(0.5A/div.)
IOUT
(0.5A/div.)
TIME(1ms/div.)
TIME(1ms/div.)
Figure 27. Output fall characteristic
(BD2045AFJ)
Figure 26. Output rise characteristic
(BD2045AFJ)
V/OC
(5V/div.)
VEN
(1V/div.)
VOUT
(5V/div.)
IOUT
(0.1A/div.)
CL=100μF
V/OC
(1V/div.)
C=47μF
CL=147μF
IOUT
(0.5A/div.)
VIN=5V
VIN=5V
RL=20Ω
TIME (2ms/div.)
TIME (20ms/div.)
Figure 28. Inrush current response
(BD2045AFJ)
Figure 29. Over current response
Ramped load
(BD2045AFJ)
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
12/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Wave Forms - continued
V/OC
V/EN
(5V/div.)
(5V/div.)
V/OC
(5V/div.)
VOUT
(5V/div.)
VOUT
(5V/div.)
IOUT
(0.5A/div.)
IOUT
(0.5A/div.)
VIN=5V
CL=100μF
VIN=5V
TIME (2ms/div.)
TIME (2ms/div.)
Figure 30. Over current response
Ramped load
Figure 31. Over current response
Enable to short-circuit
(BD2045AFJ)
(BD2045AFJ)
V/OC
V/OC
(5V/div.)
(5V/div.)
VOUT
VOUT
(5V/div.)
(5V/div.)
VIN=5V
CL=100μF
Thermal Shutdown
IOUT
IOUT
(0.5A/div.)
(1.0A/div.)
VIN=5V
CL=100μF
TIME (2ms/div.)
TIME (1s/div.)
Figure 32. Over current response
Enable to short-circuit
(BD2045AFJ)
Figure 33. Over current response
Enable to short-circuit
(BD2045AFJ)
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
13/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Wave Forms - continued
VIN
(5V/div.)
VIN
(5V/div.)
VOUT
(5V/div.)
VOUT
(5V/div.)
IOUT
(0.5A/div.)
IOUT
(0.5A/div.)
V/OC
(5V/div.)
V/OC
(5V/div.)
RL=20Ω
RL=20Ω
CI=100μF
CI=100μF
TIME (10ms/div.)
TIME (10ms/div.)
Figure 35. UVLO response Decreasing
Figure 34. UVLO response Increasing
VIN
VIN
(BD2045AFJ)
(BD2045AFJ)
Regarding the output rise/fall and over current detection characteristics of BD2055AFJ, refer to the characteristic of BD2045AFJ.
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
14/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Typical Application Circuit
5V(typ.)
VBUS
D+
IN
Regulator
OUT
D-
GND
VBUS
D+
GND
IN
OUT
OUT
10k to
100kΩ
USB
Controller
+
-
CIN
CL
D-
IN
OUT
GND
EN(/EN) /OC
●Application Information
When excessive current flows due to output short-circuit or so, ringing occurs because of inductance between power source
line to IC, and may cause bad influences on IC operations. In order to avoid this case, connect a bypass capacitor across
IN terminal and GND terminal of IC. 1μF or higher is recommended.
Pull up /OC output by resistance value of 10kΩ to 100kΩ.
Set up value which satisfies the application as CL.
This application circuit does not guarantee its operation.
When using the circuit with changes to the external circuit constants, make sure to leave an adequate margin for external
components including AC/DC characteristics as well as dispersion of the IC.
●Functional Description
1. Switch operation
IN terminal and OUT terminal are connected to the drain and the source of switch MOSFET respectively. The IN terminal
is used also as power source input to the internal control circuit.
When the switch is turned on from EN/EN control input, the IN terminal and OUT terminal are connected by an 80mΩ
switch. In ON status, the switch is bidirectional. Therefore, when the potential of OUT terminal is higher than that of the IN
terminal, current flows from OUT terminal to IN terminal.
Since a parasitic diode between the drain and the source of switch MOSFET is not present in the off status, it is possible
to prevent current from flowing reversely from OUT to IN.
2. Thermal shutdown circuit (TSD)
If over current would continue, the temperature of the IC would increase drastically. If the junction temperature were
beyond 140°C (typ.) in the condition of over current detection, thermal shutdown circuit operates and makes power switch
turn off and outputs error flag (/OC). Then, when the junction temperature decreases lower than 120°C (typ.), power
switch is turned on and error flag (/OC) is cancelled. Unless the increasing of the chip’s temperature is removed or the
output of power switch is turned off, this operation repeats.
The thermal shutdown circuit operates when the switch is on (EN,/EN signal is active).
3. Over current detection (OCD)
The over current detection circuit limits current (ISC) and outputs an error flag (/OC) when current flowing in each switch
MOSFET exceeds a specified value. There are three types of response against over current. The over current detection
circuit works when the switch is on (EN,/EN signal is active).
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
15/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
3-1. When the switch is turned on while the output is in short-circuit status, the switch goes into current limit status
immediately.
3-2. When the output short-circuits or high-current load is connected while the switch is on, very large current flows until
the over current limit circuit reacts. When the current detection and limit circuit works, current limitation is carried out.
3-3. When the output current increases gradually, current limitation does not work until the output current exceeds the
over current detection value. When it exceeds the detection value, current limitation is carried out.
4. Under voltage lockout (UVLO)
UVLO circuit prevents the switch from turning on until the VIN exceeds 2.3V(Typ.). If the VIN drops below 2.2V(Typ.) while
the switch turns on, then UVLO shuts off the power switch. UVLO has hysteresis of 100mV(Typ).
Under voltage lockout circuit works when the switch is on (EN,/EN signal is active).
5. Error flag (/OC) output
Error flag output is an N-MOS open drain output. At detection of over current and/or thermal shutdown, the output level is
low.
Over current detection has delay filter. This delay filter prevents instantaneous current detection such as surge current at
switch on, hot plug from being informed to outside.
/EN
V
Output shortcircuit
Thermal shut down
OUT
V
OUT
I
/OC
V
delay
Figure 36. Over current detection, thermal shutdown timing
(BD2045AFJ)
EN
V
Output shortcircuit
Thermal shut down
OUT
V
OUT
I
/OC
V
delay
Figure 37. Over current detection, thermal shutdown timing
(BD2055AFJ)
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
16/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Power Dissipation
(SOP-J8)
600
500
400
300
200
100
0
0
25
50
75
100
125
150
AMBIENT TEMPERATURE: Ta [
]
℃
Figure 38. Power dissipation curve (Pd-Ta Curve)
●I/O Equivalence Circuit
Symbol
Pin No
Equivalence circuit
EN(/EN)
4
/OC
5
OUT
6,7,8
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
17/22
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Operational Notes
(1) Absolute maximum ratings
Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit
between pins or an open circuit between pins. Therefore, it is important to consider circuit protection measures, such as
adding a fuse, in case the IC is operated over the absolute maximum ratings.
(2) Recommended operating conditions
These conditions represent a range within which the expected characteristics of the IC can be approximately obtained.
The electrical characteristics are guaranteed under the conditions of each parameter.
(3) Reverse connection of power supply
Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when
connecting the power supply, such as mounting an external diode between the power supply and the IC’s power supply
terminals.
(4) Power supply lines
Design the PCB layout pattern to provide low impedance ground and supply lines. Separate the ground and supply lines
of the digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the
analog block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature
and aging on the capacitance value when using electrolytic capacitors.
(5) Ground Voltage
The voltage of the ground pin must be the lowest voltage of all pins of the IC at all operating conditions. Ensure that no
pins are at a voltage below the ground pin at any time, even during transient condition.
(6) Short between pins and mounting errors
Be careful when mounting the IC on printed circuit boards. The IC may be damaged if it is mounted in a wrong orientation
or if pins are shorted together. Short circuit may be caused by conductive particles caught between the pins.
(7) Operation under strong electromagnetic field
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.
(8) Testing on application boards
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may subject
the IC to stress. Always discharge capacitors completely after each process or step. The IC’s power supply should always
be turned off completely before connecting or removing it from the test setup during the inspection process. To prevent
damage from static discharge, ground the IC during assembly and use similar precautions during transport and storage.
(9) Regarding input pins of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them isolated.
P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a parasitic diode
or transistor. For example (refer to figure below):
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode
When GND > Pin B, the P-N junction operates as a parasitic transistor.
Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to
operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should be
avoided.
Resistor
Transistor (NPN)
Pin A
Pin B
Pin B
B
C
E
Pin A
B
C
E
N
P+
P+
P+
N
N
N
P+
P
Parasitic
element
N
P
N
P substrate
P substrate
Parasitic
element
GND
GND
GND
GND
Parasitic element
Parasitic element
Other adjacent elements
Figure 39. Example of monolithic IC structure
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
18/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
(10) GND wiring pattern
When using both small-signal and large-current GND traces, the two ground traces should be routed separately but
connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal
ground caused by large currents. Also ensure that the GND traces of external components do not cause variations on the
GND voltage. The power supply and ground lines must be as short and thick as possible to reduce line impedance.
(11) External Capacitor
When using a ceramic capacitor, determine the dielectric constant considering the change of capacitance with
temperature and the decrease in nominal capacitance due to DC bias and others.
(12) Thermal shutdown circuit (TSD)
The IC incorporates a built-in thermal shutdown circuit, which is designed to turn off the IC when the internal temperature
of the IC reaches a specified value. Do not continue to operate the IC after this function is activated. Do not use the IC in
conditions where this function will always be activated.
(13) Thermal consideration
Use a thermal design that allows for a sufficient margin by taking into account the permissible power dissipation (Pd) in
actual operating conditions. Consider Pc that does not exceed Pd in actual operating conditions (Pc≥Pd).
Package Power dissipation
Power dissipation
: Pd (W)=(Tjmax－Ta)/θja
: Pc (W)=(Vcc－Vo)×Io+Vcc×Ib
Tjmax : Maximum junction temperature=150℃, Ta : Peripheral temperature[℃] ,
θja : Thermal resistance of package-ambience[℃/W], Pd : Package Power dissipation [W],
Pc : Power dissipation [W], Vcc : Input Voltage, Vo : Output Voltage, Io : Load, Ib : Bias Current
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
19/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Ordering Information
B D
2
0
0
4
5
5
5
A
A
F
J
-
-
E 2
Part Number
Package
FJ: SOP-J8
Packaging and forming specification
E2: Embossed tape and reel
B D
2
F
J
E 2
Part Number
Package
FJ: SOP-J8
Packaging and forming specification
E2: Embossed tape and reel
●Marking Diagram
SOP-J8 (TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
Part Number
Part Number Marking
BD2045AFJ
BD2055AFJ
D045A
D055A
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
20/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Physical Dimension, Tape and Reel Information
Package Name
SOP-J8
<Tape and Reel information>
Tape
Embossed carrier tape
2500pcs
Quantity
E2
Direction
of feed
The direction is the 1pin of product is at the upper left when you hold
reel on the left hand and you pull out the tape on the right hand
(
)
Direction of feed
1pin
Reel
Order quantity needs to be multiple of the minimum quantity.
∗
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
21/22
TSZ22111･15･001
Daattaasshheeeett
BD2045AFJ BD2055AFJ
●Revision History
Date
Revision
001
Changes
11.Mar.2013
New Release
www.rohm.com
TSZ02201-0E3E0H300130-1-2
11.Mar.2013 Rev.001
© 2013 ROHM Co., Ltd. All rights reserved.
22/22
TSZ22111･15･001
Daattaasshheeeett
Notice
Precaution on using ROHM Products
1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN
USA
EU
CHINA
CLASSⅢ
CLASSⅣ
CLASSⅡb
CLASSⅢ
CLASSⅢ
CLASSⅢ
2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3. Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4. The Products are not subject to radiation-proof design.
5. Please verify and confirm characteristics of the final or mounted products in using the Products.
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8. Confirm that operation temperature is within the specified range described in the product specification.
9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Notice - GE
Rev.002
© 2014 ROHM Co., Ltd. All rights reserved.
Daattaasshheeeett
Precautions Regarding Application Examples and External Circuits
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2. You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1. All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4. The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
Notice - GE
Rev.002
© 2014 ROHM Co., Ltd. All rights reserved.
Daattaasshheeeett
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall not be in an y way responsible or liable for failure, malfunction or accident arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHM’s Products, please confirm the la test information with a ROHM sale s
representative.
3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or
concerning such information.
Notice – WE
Rev.001
© 2014 ROHM Co., Ltd. All rights reserved.
相关型号：
©2020 ICPDF网 联系我们和版权申明