BD2066FJ-LB [ROHM]

本产品是面向工业设备市场的产品,保证可长期稳定供货。 是适合这些用途的产品。USB端口用双路高边开关为内置了用于通用串行总线(USB)电源线的带电流限制功能的高边开关。开关部2个通道内置了低导通电阻的N通道MOSFET,分别可流通USB规格中的500mA电流。还内置了过电流检测、过热检测、低电压锁定、软启动等功能。;
BD2066FJ-LB
型号: BD2066FJ-LB
厂家: ROHM    ROHM
描述:

本产品是面向工业设备市场的产品,保证可长期稳定供货。 是适合这些用途的产品。USB端口用双路高边开关为内置了用于通用串行总线(USB)电源线的带电流限制功能的高边开关。开关部2个通道内置了低导通电阻的N通道MOSFET,分别可流通USB规格中的500mA电流。还内置了过电流检测、过热检测、低电压锁定、软启动等功能。

开关 软启动
文件: 总25页 (文件大小:529K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
Datasheet  
2ch High Side Switch ICs  
for USB Devices and Memory Cards  
BD2062FJ-LB BD2066FJ-LB  
General Description  
Key Specifications  
„ Input voltage range:  
„ ON resistance :  
This is the product guarantees long time support in  
Industrial market.  
2.7V to 5.5V  
80m(Typ.)  
High side switch for USB is a high side switch having  
over-current protection used in power supply line of  
universal serial bus (USB). Its switch unit has two  
channels of N-channel power MOSFET. And,  
over-current detection circuit, thermal shutdown circuit,  
under-voltage lockout and soft-start circuit are built in.  
Features  
„ Over current threshold:  
„ Standby current:  
„ Operating temperature range:  
1.5A min., 3.0A max.  
0.01μA (Typ.)  
-40to +85℃  
Package  
W(Typ.) D(Typ.) H (Max.)  
4.90mm x 6.00mm x 1.65mm  
SOP-J8  
„
Long time support a product for Industrial  
applications.  
„
„
„
Dual N-MOS High Side Switch  
Current Limit Threshold 2.4A  
Control input logic  
¾ Active-Low :  
¾ Active-High:  
BD2062FJ  
BD2066FJ  
„
„
„
„
„
„
Soft-Start Circuit  
Over-Current Detection  
Thermal Shutdown  
Under-Voltage Lockout  
Open-Drain Error Flag Output  
Reverse Current Protection  
When Power Switch Off  
Flag Output Delay Filter Built In  
TTL Enable Input  
SOP-J8  
„
„
„
0.8ms Typical Rise Time  
Applications  
Industrial Equipment,  
PC, PC peripheral USB hub in consumer appliances,  
Car accessory, and so forth  
Typical Application Circuit  
5V(Typ.)  
GND  
/OC1  
OUT1  
OUT2  
/OC2  
CL  
IN  
CIN  
/EN1  
(EN1)  
/EN2  
Data  
(EN2)  
CL  
BD2062FJ/66FJ  
Data  
Lineup  
Over current detection  
Typ.  
Control input logic  
Package  
Orderable Part Number  
Min.  
Max.  
1.5A  
2.4A  
3.0A  
Low  
SOP-J8  
SOP-J8  
Reel of 2500 BD2062FJ – LBE2  
Reel of 2500 BD2066FJ – LBE2  
1.5A  
2.4A  
3.0A  
High  
Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays  
www.rohm.com  
TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
1/22  
TSZ2211114001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Block Diagram  
/EN1  
EN1  
TSD1  
Delay  
/OC1  
Gate  
Logic1  
Charge  
Pump1  
OCD1  
IN  
OUT1  
OUT2  
UVLO  
/EN2  
EN2  
Charge  
Pump2  
OCD2  
Gate  
/OC2  
Logic2  
Delay  
TSD2  
GND  
Pin Configurations  
BD2062FJ  
TOP VIEW  
BD2066FJ  
TOP VIEW  
1
2
3
4
8
7
6
5
GND  
/OC1  
OUT1  
OUT2  
/OC2  
1
2
3
4
8
7
6
5
GND  
/OC1  
OUT1  
OUT2  
/OC2  
IN  
IN  
/EN1  
/EN1  
/EN2  
/EN2  
Pin Descriptions  
BD2062FJ  
Pin No.  
1
Symbol  
GND  
I / O  
Pin function  
-
Ground.  
Power supply input.  
Input terminal to the switch and power supply input terminal of the  
internal circuit.  
2
IN  
-
Enable input.  
Switch on at Low level.  
3, 4  
/EN  
I
High level input > 2.0V, Low level input < 0.8V.  
Error flag output.  
Low at over-current, thermal shutdown.  
Open drain output.  
5, 8  
6, 7  
/OC  
O
O
OUT  
Switch output.  
BD2066FJ  
Pin No.  
Symbol  
GND  
I / O  
-
Pin function  
1
Ground.  
Power supply input.  
Input terminal to the switch and power supply input terminal of the  
internal circuit.  
2
IN  
-
I
Enable input.  
Switch on at High level.  
3, 4  
EN  
High level input > 2.0V, Low level input < 0.8V  
Error flag output.  
Low at over-current, thermal shutdown.  
Open drain output.  
5, 8  
6, 7  
/OC  
O
O
OUT  
Switch output.  
www.rohm.com  
TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
2/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Absolute Maximum Ratings (Ta=25)  
Parameter  
Symbol  
Ratings  
Unit  
Supply voltage  
VIN  
VEN  
-0.3 to 6.0  
-0.3 to 6.0  
-0.3 to 6.0  
5
V
V
Enable input voltage  
/OC voltage  
V/OC  
IS/OC  
VOUT  
TSTG  
Pd  
V
/OC sink current  
OUT voltage  
mA  
V
-0.3 to 6.0  
-55 to 150  
675*1  
Storage temperature  
mW  
Power dissipation  
*1  
Mounted on 70mm * 70mm * 1.6mm glass-epoxy PCB. Derating : 5.4mW/ oC above Ta=25 oC  
Recommended Operating Range  
Ratings  
Parameter  
Symbol  
Unit  
Min.  
2.7  
Typ.  
-
Max.  
5.5  
Operating voltage  
VIN  
V
Operating temperature  
TOPR  
-40  
-
85  
Electrical Characteristics  
BD2062FJ (Unless otherwise specified VIN = 5.0V, Ta = 25)  
Limits  
Parameter  
Symbol  
Unit  
Conditions  
Min.  
-
Typ.  
Max.  
180  
Operating current  
Standby current  
130  
IDD  
μA  
μA  
V/EN = 0V , OUT=OPEN  
V/EN = 5V , OUT=OPEN  
ISTB  
-
0.01  
1
V/EN  
V/EN  
2.0  
-
-
-
-
V
V
High input  
Low input  
/EN input voltage  
0.8  
/EN input current  
I/EN  
V/OCL  
IL/OC  
T/OC  
RON  
-1.0  
0.01  
-
1.0  
0.5  
1
μA  
V
V/EN = 0V or V/EN = 5V  
I/OC = 1mA  
/OC output low voltage  
/OC output leak current  
/OC delay time  
-
-
0.01  
15  
80  
-
μA  
ms  
mΩ  
μA  
μA  
V/OC = 5V  
10  
-
20  
On-resistance  
125  
1.0  
1.0  
3.0  
IOUT = 500mA  
Switch leak current  
Reverse leak current  
Current limit threshold  
ILSW  
ILREV  
-
V/EN = 5V, VOUT = 0V  
VOUT = 5.5V, VIN = 0V  
-
-
1.5  
2.4  
1.5  
ITH  
ISC  
A
A
VOUT = 0V  
Short circuit current  
1.1  
2.1  
CL = 47μF (RMS)  
Output rise time  
Output turn-on time  
Output fall time  
TON1  
TON2  
-
-
-
-
0.8  
1.1  
5
10  
20  
20  
40  
ms  
ms  
μs  
RL = 10Ω  
RL = 10Ω  
RL = 10Ω  
RL = 10Ω  
TOFF1  
TOFF2  
Output turn-off time  
10  
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  
TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
3/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Electrical Characteristics - continued  
BD2066FJ (Unless otherwise specified VIN = 5.0V, Ta = 25 )  
Limits  
Parameter  
Operating current  
Symbol  
Unit  
Condition  
Min.  
-
Typ.  
130  
Max.  
180  
IDD  
μA  
μA  
VEN = 5V , OUT=OPEN  
VEN = 0V , OUT=OPEN  
Standby current  
EN input voltage  
ISTB  
-
0.01  
1
VEN  
VEN  
2.0  
-
-
-
-
V
V
High input  
Low input  
0.8  
EN input current  
IEN  
V/OCL  
IL/OC  
T/OC  
RON  
-1.0  
0.01  
-
1.0  
0.5  
1
μA  
V
VEN = 0V or VEN = 5V  
I/OC = 1mA  
/OC output low voltage  
/OC output leak current  
/OC delay time  
-
-
0.01  
15  
80  
-
μA  
ms  
mΩ  
μA  
μA  
A
V/OC = 5V  
10  
20  
On-resistance  
-
125  
1.0  
1.0  
3.0  
2.1  
10  
IOUT = 500mA  
Switch leak current  
Reverse leak current  
Current limit threshold  
Short circuit current  
Output rise time  
ILSW  
ILREV  
ITH  
-
VEN = 0V, VOUT = 0V  
VOUT = 5.5V, VIN = 0V  
-
-
1.5  
2.4  
1.5  
0.8  
1.1  
5
VOUT = 0V  
CL = 47μF (RMS)  
ISC  
1.1  
A
TON1  
TON2  
TOFF1  
TOFF2  
-
-
-
-
ms  
ms  
μs  
μs  
RL = 10Ω  
RL = 10Ω  
RL = 10Ω  
RL = 10Ω  
Output turn-on time  
Output fall time  
20  
20  
Output turn-off time  
10  
40  
VTUVH  
VTUVL  
2.1  
2.0  
2.3  
2.2  
2.5  
2.4  
V
V
Increasing VIN  
Decreasing VIN  
UVLO threshold  
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TSZ02201-0E3E0H300360-1-2  
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4/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Measurement Circuit  
VIN  
VIN  
1µF  
1µF  
GND  
A
GND  
/OC1  
OUT1  
OUT2  
/OC2  
/OC1  
OUT1  
OUT2  
/OC2  
IN  
IN  
L
R
L
C
EN  
EN  
EN  
EN  
V
EN1  
EN2  
V
EN1  
EN2  
RL CL  
V
V
A. Operating current  
B. EN, /EN input voltage, Output rise, fall time  
Inrush current  
VDD  
IOUT  
VIN  
VIN  
IOUT  
10k  
10k  
1µF  
GND  
1µF  
GND  
/OC1  
OUT1  
OUT2  
/OC2  
/OC1  
IN  
IN  
OUT1  
OUT2  
/OC2  
IOUT  
IOUT  
VEN  
VEN  
EN1  
EN2  
VEN  
VEN  
EN1  
EN2  
C. On-resistance, Over-current detection  
Figure 1. Measurement circuit  
D.  
/OC output low voltage  
Timing Diagram  
TOFF1  
TOFF1  
TON1  
TON1  
90%  
90%  
90%  
90%  
VOUT  
VOUT  
10%  
10%  
10%  
10%  
TON2  
TON2  
TOFF2  
TOFF2  
V/EN  
50%  
50%  
VEN  
50%  
50%  
Figure 2. Timing diagram(BD2062FJ)  
Figure 3. Timing diagram(BD2066FJ)  
www.rohm.com  
TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
5/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves  
(Reference Data)  
180  
180  
160  
140  
120  
100  
80  
VIN=5V  
TA=25℃  
160  
140  
120  
100  
80  
60  
60  
40  
40  
20  
20  
0
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 4. Operating current  
EN, /EN enable  
Figure 5. Operating current  
EN, /EN enable  
1
0.8  
0.6  
0.4  
0.2  
0
1
0.8  
0.6  
0.4  
0.2  
0
VIN=5V  
TA=25℃  
-50  
0
50  
100  
2
3
4
5
6
AMBIENT TEMPERATURE: T (  
)
SUPPLY VOLTAGE: VIN (V)  
A
Figure 6. Standby current  
EN, /EN disable  
Figure 7. Standby current  
EN, /EN disable  
www.rohm.com  
TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
6/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
2
2
1.5  
1
TA=25℃  
VIN=5V  
Low to High  
High to Low  
Low to High  
1.5  
High to Low  
1
0.5  
0.5  
0
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 8. EN, /EN input  
voltage  
Figure 9. EN, /EN input  
voltage  
100  
80  
60  
40  
20  
0
100  
80  
60  
40  
20  
0
VIN=5V  
TA=25℃  
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 10. /OC output low voltage  
Figure 11. /OC output low voltage  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
7/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
120  
120  
100  
80  
60  
40  
20  
0
VIN=5V  
TA=25℃  
100  
80  
60  
40  
20  
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
Figure 12. On-resistance  
AMBIENT TEMPERATURE: T (  
)
A
Figure 13. On-resistance  
3
2.5  
2
3
2.5  
2
VIN=5V  
TA=25℃  
1.5  
1.5  
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 15. Current limit threshold  
Figure 14. Current limit threshold  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
8/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
2
2
1.5  
1
VIN=5V  
TA=25℃  
1.5  
1
0.5  
0.5  
0
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 16. Short circuit current  
Figure 17. Short circuit current  
1
0.8  
0.6  
0.4  
0.2  
0
1
0.8  
0.6  
0.4  
0.2  
0
VIN=5V  
TA=25℃  
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
Figure 18. Output rise time  
AMBIENT TEMPERATURE: T (  
)
A
Figure 19. Output rise time  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
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9/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
1
1
0.8  
0.6  
0.4  
0.2  
0
VIN=5V  
TA=25℃  
0.8  
0.6  
0.4  
0.2  
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: T (  
)
A
Figure 20. Output turn-on time  
Figure 21. Output turn-on time  
5
4
3
2
1
0
5
4
3
2
1
0
VIN=5V  
TA=25℃  
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
Figure 22. Output fall time  
AMBIENT TEMPERATURE: T (  
)
A
Figure 23. Output fall time  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
10/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
10  
10  
8
VIN=5V  
TA=25℃  
8
6
4
2
0
6
4
2
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
AMBIENT TEMPERATURE: TA (℃)  
Figure 24. Output turn-off time  
Figure 25. Output turn-off time  
20  
15  
10  
5
20  
15  
10  
5
VIN=5V  
TA=25℃  
0
0
-50  
0
50  
100  
2
3
4
5
6
SUPPLY VOLTAGE: VIN (V)  
Figure 26. /OC delay time  
AMBIENT TEMPERATURE: T (  
)
A
Figure 27. /OC delay time  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
11/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Performance Curves - continued  
0.2  
0.15  
0.1  
2.5  
2.4  
VUVLOH  
2.3  
2.2  
0.05  
2.1  
VUVLOL  
2
0
-50  
0
50  
100  
-50  
0
50  
100  
AMBIENT TEMPERATURE: T (  
)
A
AMBIENT TEMPERATURE: TA(  
)
Figure 28. UVLO threshold voltage  
Figure 29. UVLO hysteresis voltage  
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TSZ02201-0E3E0H300360-1-2  
21.Feb.2014 Rev.002  
© 2013 ROHM Co., Ltd. All rights reserved.  
12/22  
TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Wave Forms  
BD2062FJ  
/EN  
1V/div  
/EN  
1V/div  
VOUT  
1V/div  
VOUT  
1V/div  
V/OC  
1V/div  
V/OC  
1V/div  
VIN=5V  
CL=100uF  
RL=5Ω  
VIN=5V  
CL=100uF  
RL=5Ω  
IIN  
0.5A/div  
IIN  
0.5A/div  
TIME 1ms/div  
TIME 200us/div  
Figure 31. Output fall characteristics  
Figure 30. Output rise characteristics  
/EN  
1V/div  
VOUT1  
1V/div  
VIN=5V  
RL=5Ω  
V/OC1  
1V/div  
VOUT  
1V/div  
CL=47uF  
CL=220uF  
VOUT2  
1V/div  
V/OC  
1V/div  
VIN=5V  
CL=220uF  
C=10uF  
RL=5Ω  
IOUT1  
1.0A/div  
IIN  
0.5A/div  
CL=220uF  
CL=47uF  
TIME 200us/div  
TIME 200us/div  
Figure 33. Inrush current  
Figure 32. Inrush current  
CL=47uF, 100uF, 147uF, 220uF  
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Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Typical Wave Forms - continued  
VOUT1  
1V/div  
VOUT1  
1V/div  
V/OC1  
1V/div  
V/OC1  
1V/div  
VOUT2  
1V/div  
VOUT2  
1V/div  
VIN=5V  
VIN=5V  
CL=47uF  
CL=47uF  
IOUT1  
0.5A/div  
IOUT1  
1.0A/div  
TIME 5ms/div  
TIME 2ms/div  
Figure 34. Over-current response  
ramped load  
Figure 35. Over-current response  
1Ωload connected at enable  
VIN=5V  
CL=47uF  
RL=1Ω  
/EN  
1V/div  
V/OC2  
1V/div  
VIN=5V  
CL=47uF  
VOUT  
1V/div  
VOUT1  
1V/div  
VOC  
1V/div  
V/OC1  
1V/div  
IOUT1  
0.5A/div  
IOUT1  
0.5A/div  
TIME 2ms/div  
TIME 100ms/div  
Figure 36. Over-current response  
enable to short circuit  
Figure 37. Thermal shutdown  
response  
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BD2062FJ-LB BD2066FJ-LB  
Typical Application Circuit  
5V(Typ.)  
10k to 100k  
10k to 100k  
VBUS  
IN  
OUT  
ON/OFF  
GND  
IN  
/OC1  
OUT1  
OUT2  
/OC2  
D+  
CL  
CL  
OC  
OC  
CIN  
D-  
/EN1  
(EN1)  
/EN2  
(EN2)  
Regulator  
GND  
Data  
Data  
ON/OFF  
Data  
BD2062FJ/66FJ  
USB Controller  
Application Information  
When excessive current flows due to output short-circuit or so, ringing occurs because of inductance between power source  
lines 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 10kto 100k.  
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. And the IN  
terminal is used also as power source input to internal control circuit.  
When the switch is turned on from EN/EN control input, IN terminal and OUT terminal are connected by a 80mswitch.  
In on status, the switch is bidirectional. Therefore, when the potential of OUT terminal is higher than that of 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)  
Thermal shut down circuit have dual thermal shutdown threshold. Since thermal shutdown works at a lower junction  
temperature when an over-current occurs, only the switch of an over-current state become off and error flag is output.  
Thermal shut down action has hysteresis. Therefore, when the junction temperature goes down, switch on and error flag  
output automatically recover. However, until cause of junction temperature increase such as output shortcircuit is  
removed or the switch is turned off, thermal shut down detection and recovery are repeated. The thermal shut down  
circuit works when the switch of either OUT1 or OUT2 is on (EN,/EN signal is active).  
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3. Over-current detection (OCD)  
The over-current detection circuit limits current (ISC) and outputs 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).  
3-1. When the switch is turned on while the output is in short-circuit state  
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 while the switch is on  
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 takes into action. When the current is detected, limiter circuit works, current limitation is  
carried out.  
3-3. When the output current increases gradually  
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 switch. UVLO has hysteresis of 100mV(Typ).  
Under-voltage lockout circuit works when the switch of either OUT1 or OUT2 is on (EN,/EN signal is active).  
5. Error flag (/OC) output  
Error flag output is N-MOS open drain output. At detection of over current or thermal shutdown, the output level is low.  
Over-current detection has delay filter. This delay filter prevents instantaneous current detection such as inrush 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 38. Over current detection, thermal shutdown timing  
(BD2062FJ)  
EN  
V
Output shortcircuit  
Thermal shut down  
OUT  
V
OUT  
I
/OC  
V
delay  
Figure 39. Over current detection, thermal shutdown timing  
(BD2066FJ)  
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Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Power Dissipation  
(SOP-J8)  
600  
500  
400  
300  
200  
100  
0
0
25  
50  
75  
100  
125  
150  
AMBIENT TEMPERATURE: Ta [  
]
Figure 40. Power dissipation curve (Pd-Ta Curve)  
Equivalence circuit  
I/O Equivalence Circuit  
Symbol  
Pin No  
3, 4  
/EN1(EN1)  
/EN2(EN2)  
EN1(/EN1)  
EN2(/EN2)  
/OC1  
/OC2  
/OC1  
/OC2  
5, 8  
OUT1  
OUT2  
OUT1  
OUT2  
6, 7  
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TSZ2211115001  
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BD2062FJ-LB BD2066FJ-LB  
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 41. Example of monolithic IC structure  
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Datasheet  
BD2062FJ-LB BD2066FJ-LB  
(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 (PcPd).  
Package Power dissipation  
Power dissipation  
: Pd (W)=(TjmaxTa)/θja  
: Pc (W)=(VccVo)×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  
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TSZ2211115001  
Datasheet  
BD2062FJ-LB BD2066FJ-LB  
Ordering Information  
B D 2 0 6 x F  
J
-
L B E 2  
Part Number  
Package  
Product class  
FJ: SOP-J8  
LB for Industrial applications  
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  
BD2062FJ  
BD2066FJ  
D2062  
D2066  
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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.  
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BD2062FJ-LB BD2066FJ-LB  
Revision History  
Date  
Revision  
001  
Changes  
13.Mar.2013  
New Release  
Delete sentence “and log life cycle” in General Description and Futures (page 1).  
Change “Industrial Applications” to “Industrial Equipment” in Applications (page 1).  
Applied new style (“title”, “Ordering Information” and “Physical Dimension Tape and Reel  
Information”).  
21.Feb.2014  
002  
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TSZ2211115001  
Daattaasshheeeett  
Notice  
Precaution on using ROHM Products  
(Note 1)  
1. If you intend to use our Products in devices requiring extremely high reliability (such as medical equipment  
,
aircraft/spacecraft, nuclear power controllers, 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  
CLASS  
CLASSⅣ  
CLASSb  
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 not designed 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 - SS  
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 - SS  
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.  

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