The ACPL-K342-560E is a high-performance, easy-to-use active output gate drive optocoupler in an eight-lead small outline package. It is designed for driving IGBTs and MOSFETs used in power inverters and motor drives.

Applications:

• Isolated IGBT/MOSFET Gate Drive
• AC and Brushless DC Motor Drives
• Industrial Inverters
• Switch Mode Power Supplies (SMPS)
• Uninterruptible Power Supplies (UPS)

Features:

• High Speed: 1 MHz Maximum Propagation Delay
• High Common Mode Transient Immunity: 50 kV/μs minimum
• Wide Operating Supply Voltage Range: 15 V to 30 V
• Under Voltage Lock-Out Protection (UVLO) with Hysteresis
• Open Collector Output
• Safety Approval: UL, CSA, IEC/EN/DIN EN 60747-5-5
• Operating Temperature Range: -40°C to +105°C

Benefits:

• Improved System Performance: The high speed and high common mode transient immunity of the ACPL-K342-560E enable faster switching speeds and reduced dead-time in power inverters, leading to improved efficiency and reduced EMI.
• Enhanced System Reliability: The UVLO protection feature prevents the IGBT or MOSFET from operating in a partially on state, which can lead to device failure.
• Simplified Design: The wide operating supply voltage range and open collector output of the ACPL-K342-560E simplify the design of isolated gate drive circuits.
• Safety Compliance: The safety approvals of the ACPL-K342-560E ensure that the device meets the relevant safety standards.

The ACPL-K342-560E consists of an AlGaAs LED optically coupled to an integrated circuit with a power output stage. This optocoupler is ideally suited for driving power IGBTs and MOSFETs used in inverter applications. The device functions as a gate driver, providing electrical isolation between the control circuitry and the power switching devices. The high common-mode transient immunity ensures reliable operation in noisy environments, preventing spurious triggering of the power devices. The UVLO feature prevents the gate voltage from falling below a minimum threshold, thereby protecting the IGBT or MOSFET from damage.