2ch High Side Switch ICs for USB Devices and Memory Cards - BD2056AFJ

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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
BD2056AFJ-E2 Active SOP-J8 2500 2500 Taping Yes
Supply Voltage(Min.)[V] 2.7
Supply Voltage(Max.)[V] 5.5
Current consumption(Typ.)[µA] 110.0
ON Resistance [mΩ] 100
Channel Number [ch] 2
Control Input Logic Active High
Over Current Detect [A] 0.3 to 0.9
Output Turn on Time [ms] 1.8
Thermal Shut Down Recovery
Flag Output Delay at Over Current [ms] 1.3
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Dual N-MOS high side switch
    ・Continuous current load 0.25A
    ・Soft start circuit
    ・Over current detection
    ・Thermal shutdown
    ・Under voltage lockout
    ・Open drain error flag output
    ・Reverse-current protection when switch off
Technical Data
Application Note

Thermal Resistance