Inverted Logic, High CMR Optocoupler for Intelligent Power Modules and IGBT/MOSFET Gate Drive

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The high-speed ACPL-P481/W481 optocoupler contains a GaAsP LED, photo detector and a Schmitt trigger that eliminates the need for external waveform conditioning circuits.

The totem pole output eliminates the need for a pull-up resistor. An Intelligent Power Module, Power MOSFET or IGBT can be driven directly.

Propagation delay difference between devices has been minimized to maximize inverter efficiency through reduced switching dead time. 


  • Inverted output type (totem pole output)
  • Performance Specified for Common IPM Applications Over Industrial Temperature Range.
  • Short Maximum Propagation Delays
  • Minimized Pulse Width Distortion (PWD)
  • Very High Common Mode Rejection (CMR)
  • Hysteresis
  • Available in Stretched SO-6 Package.
  • Package Clearance/Creepage at 8 mm (ACPL-W481)
  • Safety Approval (pending):
    - UL Recognized with 3750 Vrms for 1 minute per UL1577
    - CSA Approved
    - IEC/EN/DIN EN 60747-5-2 Approved with
    VIORM = 891Vpeak for option 060
Options available are:
500 = Tape and Reel Packaging Option
060 = IEC/EN/DIN EN 60747-5-2, VIORM = 891 VPEAK
XXXE = Lead Free Option


  • IPM Interface Isolation
  • Isolated IGBT/MOSFET Gate Drive
  • AC and Brushless DC Motor Drives
  • Industrial Inverters
  • General Digital Isolation

Lifecycle Status

Limited Release

Substance Compliance

  • RoHS
    Pb & Pb-free options available
Specification Value
Lifecycle Limited Release
Distrib. Inventory Yes
Product Type IPM Optocoupler
RoHS6 Compliant Pb & Pb-free options available
Package Stretched SO6
IF Min. (mA) 6.0
Prop Delay (tPLH) Max. (µs) 0.35
Prop Delay (tPHL) Max. (µs) 0.35
PDD Max (µs) 0.25
CMR (min.) (V/µs) 20000.0
Vcm (V) 1000.0
UL Insulation Rating Viso (VRMS) 3750
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 891.0
Application Note2 i
Options Data Sheet3 i
Product Change Notice (PCN)3 i
Regulatory Certificate1 i
Reliability Data Sheet2 i
Selection Guide1 i
White Papers1 i
FAQs1 i
Promotional Material1 i


High CMR Intellligent Power Module and Gate Drive Interface Optocoupler


High CMR Intelligent Power Module and Gate Drive Interface Optocoupler