Broadcom ACPL-H342 & ACPL-K342 IGBT Gate Drive Optocouplers

Broadcom ACPL-H342 and ACPL-K342 IGBT gate drive optocouplers are ideally suited for driving power IGBTs and MOSFETs used in motor control inverter applications. The high operating voltage range of the output stage provides the drive voltages required by gate controlled devices. The voltage and high peak output current supplied by this optocoupler make it ideally suited for direct driving IGBT with ratings up to 1200V/150A. 

For IGBTs with higher ratings, the Broadcom ACPL-H342 and ACPL-K342 gate drive optocouplers can be used to drive a discrete power stage which drives the IGBT gate. The Broadcom ACPL-H342 and ACPL-K342 have the highest insulation voltage of VIORM = 891Vpeak and 1140Vpeak respectively in the IEC/ EN/DIN EN 60747-5-5.


  • 2.5 A maximum peak output current
  • 2.0A minimum peak output current
  • Built-in active Miller clamp
  • Rail-to-rail output voltage
  • Fast propagation delay to minimize dead time
  • tPHL < tPLH to provide “anti-cross” conduction
  • LED input threshold current hysteresis
  • ICC = 2.5 mA maximum supply current to allow boot-strap power supply
  • Under voltage lock-out protection (UVLO) with hysteresis
  • 40kV/μs minimum common mode tejection (CMR) at VCM = 1500V
  • Wide operating VCC range: 15V to 30V
  • Industrial temperature range: –40°C to 105°C
  • Safety approval:
    • UL Recognized 3750/5000 VRMS for 1min.
    • CSA
    • IEC/EN/DIN EN 60747-5-5 VIORM = 891/1140 Vpeak


  • IGBT/MOSFET gate drive
  • AC and brushless DC motor drives
  • Renewable energy inverters
  • Industrial inverters
  • Switching power supplies

Functional Diagram

Broadcom ACPL-H342 & ACPL-K342 IGBT Gate Drive Optocouplers
Publicado: 2010-09-29 | Actualizado: 2022-03-11