BD2046AFJ_11 Datasheet, PDF (1/14 Pages) Rohm – 2ch High Side Switch ICs for USB Devices and Memory Cards

Power Management Switch ICs for PCs and Digital Consumer Products
2ch High Side Switch ICs
for USB Devices and Memory Cards
BD2046AFJ, BD2056AFJ
No.11029EBT05
●Description
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
1) Dual N-MOS high side switch
2) Continuous current load 0.25A
3) Control input logic
Active-Low : BD2046AFJ
Active-High : BD2056AFJ
4) Soft start circuit
5) Over current detection
6) Thermal shutdown
7) Under voltage lockout
8) Open drain error flag output
9) Reverse-current protection when switch off
10) Flag output delay filter built in
●Applications
USB hub in consumer appliances, Car accessory, PC, PC peripheral equipment, and so forth
●Lineup
Parameter
Continuous current load (A)
Over current detection (A)
Control input logic
BD2046AFJ
0.25
0.5
Low
BD2056AFJ
0.25
0.5
High
●Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Supply voltage
VIN
-0.3 to 6.0
V
Enable voltage
VEN, V/EN
-0.3 to 6.0
V
/OC voltage
V/OC
-0.3 to 6.0
V
/OC current
IS/OC
10
mA
OUT voltage
VOUT
-0.3 to 6.0
V
Storage temperature
Power dissipation
TSTG
Pd
-55 to 150
°C
560^*1
mW
*1 In the case of exceeding Ta = 25°C, 4.48mW should be reduced per 1°C.
* This chip is not designed to protect itself against radioactive rays.
●Operating conditions
Parameter
Operating voltage
Operating temperature
Continuous output current
Symbol
VIN
TOPR
ILO
Ratings
Unit
2.7 to 5.5
V
-40 to 85
°C
0 to 250
mA
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2011.05 - Rev.B