Side Switch. BD2055AFJ Datasheet
1ch High Side Switch ICs
0.5A Current Limit High Side Switch ICs
BD2045AFJ and BD2055AFJ are single channel high
side switch ICs with over-current protection for
Universal Serial Bus (USB) power supply line. These
ICs have low ON-Resistance N-Channel power
MOSFETs with low supply current, built-in over-current
protection circuit, thermal shutdown circuit, under
voltage lockout and soft-start circuit.
Input Voltage Range:
2.7V to 5.5V
Continuous Current Load:
Over-Current Threshold: 0.3A (Min), 0.8A (Max)
Output Rise Time:
Operating Temperature Range: -40°C to +85°C
Built-In Low ON-Resistance Nch MOSFET
( Typ=80mΩ )
Control Input Logic
Under Voltage Lockout Function
Open Drain Error Flag Output
Reverse-Current Protection when Switch Off
Flag Output Delay
USB Hub in Consumer Appliances, PC, PC Peripheral
Equipment, and so forth
W(Typ) D(Typ) H (Max)
4.90mm x 6.00mm x 1.65mm
Typical Application Circuit
EN( /EN ) /OC
Min Typ Max
Orderable Part Number
Reel of 2500 BD2045AFJ-E2
Reel of 2500 BD2055AFJ-E2
○Product structure：Silicon monolithic integrated circuit
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○This product has not designed protection against radioactive rays
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