MSCGLQ50A120CTBL1NG

Overview

The MSCGLQ50A120CTBL1NG is a phase leg high-speed IGBT4 power module manufactured by Microchip Technology. It features a 1200 V collector-emitter voltage rating and a continuous collector current of 50 A at a case temperature of 100°C. The device integrates an IGBT with a SiC Schottky diode, providing low switching losses and zero reverse recovery characteristics. Key electrical parameters include a maximum collector-emitter saturation voltage of 2.4 V at 50 A and 25°C, and a total gate charge of 230 nC. The module utilizes a Kelvin emitter for drive isolation and includes an internal NTC thermistor for temperature monitoring.

Feature Summary

• High speed IGBT4 technology with low voltage drop and low leakage current
• Integrated SiC Schottky Diode featuring zero reverse and forward recovery
• Kelvin emitter configuration for simplified gate drive circuitry
• Internal thermistor for precise junction temperature monitoring

Applications

• High reliability power systems
• High efficiency AC/DC and DC/AC converters
• Motor control applications

Procurement Notes

Verify the specific datasheet revision DS00004111A when sourcing components to ensure alignment with final design specifications. Confirm that handling procedures strictly adhere to electrostatic discharge (ESD) protection guidelines during installation. Ensure mounting torque remains within the specified range of 1.5 to 2 N.m for M4 screws to maintain thermal interface integrity and mechanical stability.

Selection Notes

Select this component for designs requiring high-frequency operation and superior thermal performance in a low-profile package. The integrated SiC diode eliminates reverse recovery issues, making it suitable for hard-switching topologies. Evaluate the junction-to-heatsink thermal resistance of 0.4 °C/W against your heatsinking strategy to ensure the junction temperature stays within the recommended operating limits under peak load conditions.

Part Context

This device belongs to Microchip's Phase Leg High-Speed IGBT4 Power Module series. It represents an evolution in power semiconductor packaging, combining silicon IGBTs with silicon carbide diodes to enhance efficiency. The BL1 suffix indicates a specific terminal configuration and substrate material optimized for direct mounting to heatsinks while maintaining electrical isolation.

Replacement Considerations

Direct replacements must match the 1200V/50A phase leg configuration and SP1 package outline. Verify pin compatibility and thermal resistance values before substitution. Cross-referencing with other Microchip GLQ series modules may be necessary if exact part availability is limited.

FAQ

What is the function of the Kelvin emitter in this module?

The Kelvin emitter provides a separate connection point for the gate drive return path, isolating it from the high-current power emitter. This reduces noise coupling and improves switching performance by preventing voltage spikes on the gate drive loop.

How does the integrated SiC diode improve performance compared to standard diodes?

The SiC Schottky diode exhibits zero reverse recovery charge and zero forward recovery. This eliminates turn-off switching losses associated with diode reverse recovery and reduces electromagnetic interference (EMI), allowing for higher switching frequencies and improved overall converter efficiency.

What are the absolute maximum ratings for the collector-emitter voltage?

The absolute maximum collector-emitter voltage (VCES) is rated at 1200 V. Exceeding this limit may result in permanent damage to the device.