Product Summary

The IR2125 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. The IR2125 features a high pulse current buffer stage designed for minimum driver cross-conduction. The protection circuitry detects over-current in the driven power transistor and limits the gate drive voltage. The floating channel of the IR2125 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.

Parametrics

IR2125 absolute maximum ratings: (1)High Side Floating Supply Voltage:-0.3V to 525V; (2)High Side Floating Offset Voltage:VB - 25V to VB + 0.3V; (3)High Side Floating Output Voltage:VS - 0.3V to VB + 0.3V; (4)Logic Supply Voltage:-0.3V to 25V; (5)Logic Input Voltage:-0.3V to VCC + 0.3V; (6)Error Signal Voltage:-0.3V to VCC + 0.3V; (7)Current Sense Voltage:VS - 0.3V to VB + 0.3V; (8)Allowable Offset Supply Voltage Transient:50V/ns; (9)Package Power Dissipation @ TA ≤ +25℃:1.0W; (10)Thermal Resistance, Junction to Ambient:125℃/W; (11)Junction Temperature:150℃; (12)Storage T emperature:-55℃ to 150℃; (13)Lead Temperature (Soldering, 10 seconds):300℃.

Features

IR2125 features:(1)Floating channel designed for bootstrap operation; (2)Fully operational to +500V; (3)Tolerant to negative transient voltage; (4)dV/dt immune; (5)Gate drive supply range from 12 to 18V; (6)Undervoltage lockout; (7)Current detection and limiting loop to limit driven power transistor current; (8)Error lead indicates fault conditions and programs shutdown time; (9)Output in phase with input.

Diagrams

IR2125 block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
IR2125PBF
IR2125PBF

International Rectifier

Power Driver ICs

Data Sheet

0-1465: $1.85
IR2125SPBF
IR2125SPBF

International Rectifier

Power Driver ICs

Data Sheet

0-800: $1.78
IR2125Z
IR2125Z

Other


Data Sheet

Negotiable 
IR2125STRPBF
IR2125STRPBF

International Rectifier

Power Driver ICs

Data Sheet

0-775: $1.78
775-1000: $1.78
IR2125STR
IR2125STR


IC MOSFET DRIVER LIMITING 16SOIC

Data Sheet

Negotiable 
IR2125S
IR2125S


IC MOSFET DRIVER LIMITING 16SOIC

Data Sheet

Negotiable 
IR2125(S)
IR2125(S)

Other


Data Sheet

Negotiable 
IR2125
IR2125


IC MOSFET DRIVER LIMITING 8-DIP

Data Sheet

Negotiable