STK5MFU3C1A-E

Overview

The STK5MFU3C1A-E is a 2-in-1 PFC and Inverter Intelligent Power Module (IPM) rated at 600 V and 30 A. It integrates a high-voltage driver, six motor drive IGBTs, one PFC IGBT, one PFC rectifier, and a thermistor. Designed for driving permanent magnet synchronous (PMSM), brushless-DC (BLDC), and AC asynchronous motors, the module features a three-phase bridge with common emitter connections for lower legs. The device includes an internal comparator and reference for adjustable over-current protection levels for both PFC and inverter stages.

Feature Summary

• Integrates PFC and inverter power stages within a single package to simplify thermal design.
• Includes cross-conduction protection and adjustable over-current protection levels for individual stages.
• Features integrated bootstrap diodes and resistors for simplified gate drive circuitry.
• Provides full protection functions including external shutdown and under-voltage lockout.

Applications

• Heat Pumps
• Home Appliances
• Industrial Fans
• Industrial Pumps

Procurement Notes

Verify the specific ordering suffix '-E' corresponds to lead-free compliance as indicated in the datasheet. Confirm the SIP28 package dimensions match the target PCB layout requirements. Ensure the mounting torque specifications of 0.79 to 1.17 Nm are adhered to during installation to maintain proper thermal contact and mechanical stability. Check for any specific environmental certifications required by the end application.

Selection Notes

Select this IPM for applications requiring combined PFC and motor drive functionality in a compact form factor. Consider the 600 V rating and 30 A current capability when sizing for specific load requirements. Evaluate the thermal resistance characteristics and ensure adequate heatsinking is provided. Verify that the control logic voltage levels are compatible with the intended microcontroller or driver interface.

Part Context

This component belongs to ON Semiconductor's Intelligent Power Module lineup, specifically designed for motor control applications. It consolidates multiple discrete components into a single SIP28 package, reducing board space and assembly complexity. The module is suitable for various motor types, including PMSM, BLDC, and AC asynchronous motors, offering a comprehensive solution for power stage integration.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.

FAQ

What is the function of the FAULT/TH pin?

The FAULT/TH pin serves dual purposes: it acts as an open-drain FAULT output indicating undervoltage or overcurrent conditions, and it connects to an internal grounded thermistor for temperature monitoring.

How is over-current protection configured?

Over-current protection is configured using the ITRIP pin for the inverter and PTRIP pin for the PFC. An internal comparator compares the voltage on these pins against a reference to trigger a shutdown if thresholds are exceeded.

What is the recommended bootstrap capacitor value?

The recommended bootstrap capacitor value is calculated based on gate charge and UVLO thresholds, typically ranging from 1 to 47 μF. The value should be approximately three times the calculated minimum to ensure reliable operation.