1ch High Side Switch ICs for USB Devices and Memory Cards - BD2045AFJ

Single channel high side switch IC for USB port is a high side switch having over current protection used in power supply line of universal serial bus (USB). N-channel power MOSFET of low on resistance and low supply current are realized in this IC. 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
BD2045AFJ-E2 Active SOP-J8 2500 2500 Taping Yes
Supply Voltage(Min.)[V] 2.7
Supply Voltage(Max.)[V] 5.5
Current consumption(Typ.)[µA] 90.0
ON Resistance [mΩ] 80
Channel Number [ch] 1
Control Input Logic Active Low
Over Current Detect [A] 0.3 to 0.8
Output Turn on Time [ms] 1.2
Thermal Shut Down Recovery
Flag Output Delay at Over Current [ms] 1.3
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
  • ・Low on resistance 80mΩ Nch MOSFET 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 power switch off
    ・Power supply voltage range 2.7V to 5.5V
    ・TTL Enable input
    ・1.2ms typical rise time
    ・10μA max standby current
    ・Operating temperature range -40°C to 85°C
Technical Data
Application Note

Thermal Resistance