2.5A Output Current SiC/GaN MOSFET and IGBT Gate Drive Optocoupler

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The Broadcom ACPL-W349 is a high-speed 2.5A gate drive optocoupler device that contains an AlGaAs LED, which is optically coupled to an integrated circuit with a power output stage. The device is ideally suited for driving SiC/GaN (Silicon Carbide / Gallium Nitride) MOSFETs and IGBTs used in power conversion applications. The high operating voltage range of the output stage provides the drive voltages required by gate controlled devices. The high rail-to-rail output voltage and high peak output current supported by the device make it ideally suited for directly driving MOSFETs and IGBTs with ratings up to 1200V/100A. The ACPL-W349 has a high insulation voltage of VIORM= 1140 VPEAK per the IEC/ EN/DIN EN 60747-5-5 and is UL1577 recognized with 5000 VRMS for 1 minute.


  • 2.5A Maximum Peak Output Current
  • Wide Operating VCC Range: 15 to 30 V
  • 110ns Maximum Propagation Delay
  • 50ns Maximum Propagation Delay Difference 
  • Rail-to-rail Output Voltage
  • 100-kV/μs Minimum Common Mode Rejection (CMR) at 
    VCM = 1500 V
  • LED Current Input with Hysteresis
  • ICC = 4.2 mA Maximum Supply Current 
  • Under Voltage Lock-Out (UVLO) Protection with Hysteresis
  • Industrial Temperature Range: -40°C to 105°C
  • Safety Approval:
    • UL Recognized 5000 VRMS for 1 min.
    • CSA
    • IEC/EN/DIN EN 60747-5-5 VIORM = 1140 VPEAK
  • Available Options:
    060E = IEC/EN/DIN EN 60747-5-5
    500E = Tape and Reel Packaging Option
    XXXE = Lead Free Option


  • SiC/GaN MOSFET and IGBT Gate Drive
  • Motor Drives
  • Industrial Inverters
  • Renewable Energy Inverters
  • Switching Power Supplies (SPS)

Lifecycle Status


Substance Compliance

  • RoHS6
    Fully Compliant
Specification Value
Lifecycle Active
Distrib. Inventory Yes
RoHS6 Compliant Y
Package Stretched SO6
IF Min. (mA) 7.0
Peak Output Current Min (A) 2
Peak Output Current Max (A) 2.5
PDD Max (µs) 0.05
Vcc (V) 30
CMR (min.) (V/µs) 100000.0
Vcm (V) 1500.0
UL Insulation Rating Viso (VRMS) 5000.0
IEC Maximum Working Insulation Voltage Viorm (VPEAK) 1140.0
Prop Delay (tPHL) Max. (µs) 0.11
Prop Delay (tPLH) Max. (µs) 0.11
Application Note5 i
Data Sheet1 i
Options Data Sheet3 i
Product Change Notice (PCN)1 i
Reliability Data Sheet3 i
Technical Notes2 i
User Guide1 i
White Papers3 i
FAQs1 i
Promotional Material1 i