2.5 Amp Output Current IGBT Gate Drive Optocoupler with Active Miller Clamp, Rail-to-Rail Output Voltage and UVLO in Stretched SO8

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The ACPL-K342/ACPL-H342 contains an AlGaAs LED, which is optically coupled to an integrated circuit with a power output stage. This optocoupler is 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 gate drives rated up to 1200V/150A.

For IGBTs with higher ratings, the ACPL-H342/ACPL-K342 can be used to drive a discrete power stage which drives the IGBT gate. The 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 bootstrap power supply
  • Under Voltage Lock-Out Protection (UVLO) with Hysteresis
  • 40 kV/μs Minimum Common Mode Rejection (CMR) at
    VCM = 1500 V
  • Wide Operating VCC Range: 15 to 30 Volts
  • 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
  • Options available are:
    060 = IEC/EN/DIN EN 60747-5-2, VIORM = 630 VPEAK
    500 = Tape and Reel Packaging Option
    XXXE = Lead Free Option


  • IGBT/MOSFET gate drive
  • AC/Brushless DC motor drives
  • Industrial inverters
  • Switching Power Supplies (SPS)

Lifecycle Status


Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Pb & Pb-free options available
Package Stretched SO8
IF Min. (mA) 7.0
Peak Output Current Min (A) 2
Peak Output Current Max (A) 2.5
PDD Max (µs) -0.2
Vcc (V) 30
CMR (min.) (V/µs) 40000.0
Vcm (V) 1500.0
UL Insulation Rating Viso (VRMS) 3750.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 891.0
Prop Delay (tPHL) Max. (µs) 0.25
Prop Delay (tPLH) Max. (µs) 0.35
Application Note5 i
Data Sheet1 i
Options Data Sheet3 i
Product Change Notice (PCN)4 i
Regulatory Certificate2 i
Reliability Data Sheet3 i
Technical Notes2 i
White Papers2 i
FAQs1 i
Promotional Material1 i