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PDF BD2046AFJ Data sheet ( Hoja de datos )
| Número de pieza | BD2046AFJ | |
| Descripción | 0.5A Current Limit High Side Switch ICs | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
2ch High Side Switch ICs
0.5A Current Limit High Side Switch ICs
BD2046AFJ BD2056AFJ
General Description
BD2046AFJ and BD2056AFJ are dual channel high
side switch ICs with an over current protection for
Universal Serial Bus (USB) power supply line. The IC’s
switch unit has two channels of N-Channel power
MOSFET. Over current detection circuit, thermal
shutdown circuit, under voltage lockout and soft start
circuit are built in.
Features
Dual N-MOS High Side Switch
Control Input Logic
Active-Low:
BD2046AFJ
Active-High:
BD2056AFJ
Soft Start Circuit
Over Current Detection
Thermal Shutdown
Under Voltage Lockout
Open Drain Error Flag Output
Reverse-Current Protection when Switch Off
Flag Output Delay
Applications
USB Hub in Consumer Appliances, Note PC, PC
Peripheral Equipment, and so forth
Typical Application Circuit
Key Specifications
Input Voltage Range:
2.7V to 5.5V
ON-Resistance:
100mΩ(Typ)
Continuous Current Load:
0.25A
Over-Current Threshold: 0.3A (Min), 0.9A (Max)
Standby Current:
0.01μA (Typ)
Output Rise Time:
1.8ms (Typ)
Operating Temperature Range: -40°C to +85°C
Package
W(Typ) D(Typ) H(Max)
SOP-J8
4.90mm x 6.00mm x 1.65mm
5V(Typ)
GND
IN
CIN
/EN1
(EN1)
/EN2
(EN2)
/OC1
OUT1
OUT2
/OC2
CL
Data
CL
Lineup
Over-Current Threshold
Min Typ Max
0.3A
0.5A
0.9A
0.3A
0.5A
0.9A
Data
Control Input
Logic
Low
High
Package
Orderable Part Number
SOP-J8
SOP-J8
Reel of 2500 BD2046AFJ-E2
Reel of 2500 BD2056AFJ-E2
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･14･001
○This product has not designed protection against radioactive rays
1/23
TSZ02201-0E3E0H300140-1-2
21.Aug.2014 Rev.002
1 page  
BD2046AFJ BD2056AFJ
Measurement Circuit
Datasheet
VDD
1µF
A
GND
IN
VEN EN1
VEN EN2
/OC1
OUT1
OUT2
/OC2
VDD
1µF
GND
IN
VEN EN1
VEN EN2
/OC1
OUT1
OUT2
/OC2
RL CL
RL CL
A. Operating Current
B. EN, /EN Input Voltage, Output Rise / Fall Time
VDD
1µF
GND
IN
VEN EN1
VEN EN2
10k 10k
/OC1
OUT1
OUT2
/OC2
IOUT
IOUT
VDD
1µF
GND
IN
VEN EN1
VEN EN2
IOUT
/OC1
OUT1
OUT2
/OC2
VDD
IOUT
C.ON-Resistance, Over Current Detection
D. /OC Output Low Voltage
Figure 1. Measurement Circuit
Timing Diagram
VOUT
tON1
90%
10%
tON2
tOFF1
90%
10%
tOFF2
V/EN V/ENL
V/ENH
Figure 2. Timing Diagram (BD2046AFJ)
VOUT
tON1
90%
10%
tON2
tOFF1
90%
10%
tOFF2
VEN VENH
VENL
Figure 3. Timing Diagram (BD2056AFJ)
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
5/23
TSZ02201-0E3E0H300140-1-2
21.Aug.2014 Rev.002
5 Page 
BD2046AFJ BD2056AFJ
Typical Performance Curves - continued
Datasheet
6.0
Ta=25°C
5.0
4.0
3.0
2.0
1.0
0.0
2
34 5
SUSPupPpLlYy VoOltLaTgAeG: VEIN:[V]IN[V]
6
Figure 24. Output Turn OFF Time vs
Supply Voltage
2.0
Ta=25°C
1.5
1.0
0.5
0.0
2
345
Supply Voltage: VIN[V]
6
Figure 26. /OC Delay Time vs Supply Voltage
5.0
VIN=5.0V
4.0
3.0
2.0
1.0
0.0
-50 0 50 100
AMABmIEbNieTntTTEeMmpPeErRatAuTreU: RTaE[°:CT]a[℃]
Figure 25. Output Turn OFF Time vs
Ambient Temperature
2.0
1.5
1.0
0.5
VIN=5.0V
0.0
-50
0 50
Ambient Temperature: Ta[°C]
Figure 27. /OC Delay Time vs
Ambient Temperature
100
www.rohm.com
© 2013 ROHM Co., Ltd. All rights reserved.
TSZ22111･15･001
11/23
TSZ02201-0E3E0H300140-1-2
21.Aug.2014 Rev.002
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet BD2046AFJ.PDF ] | |
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