IR2125 Datasheet – Current limiting single channel driver

Part Number: IR2125

Function: Current limiting single channel driver

Manufacturer: International Rectifier, ( )


IR2125 datasheet

The IR2125(S) is a high voltage, high speed power MOSFET and IGBT driver with over-current limiting protection circuitry. Proprietary HVIC and latch immune CMOS technologies enable ruggedized monolithic construction. Logic inputs are compatible with standard CMOS or LSTTL outputs, down to 2.5V logic. The output driver features a high pulse currentbuffer stage designed for minimum driver cross-conduction. The protection circuitry detects over-current in the driven power transistor and limits the gate drive voltage. Cycle by cycle shutdown is programmed by an external capacitor which directly controls the time interval between detection of the over-current limiting conditions and latched shutdown. The floating channel can be used to drive an N-channel power MOSFET or IGBT in the high or low side configuration which operates up to 500 volts.

• Floating channel designed for bootstrap operation Fully operational to +500V Tolerant to negative transient voltage dV/dt immune
• Gate drive supply range from 12 to 18V
• Undervoltage lockout
• Current detection and limiting loop to limit driven power transistor current
• Error lead indicates fault conditions and programs shutdown time
• Output in phase with input
• 2.5V, 5V and 15V input logic compatible
• Also available LEAD-Free


IR2125 Datasheet PDF Download

IR2125 pdf

Other data sheets are available within the file: IR2125PbF, IR2125S, IR2125SPbF