PS21661-FR

Overview

The PS21661-FR is a Single-In-Line Intelligent Power Module (SIP-IPM) from Powerex, rated for 3 Amperes and 600 Volts. It integrates fifth-generation IGBTs, free-wheeling diodes, high-voltage integrated circuits (HVICs), and protection circuitry within an ultra-compact transfer-molded package. The module operates with a single power supply and features direct CPU connection capabilities. Key electrical parameters include a collector-emitter voltage of 600V, a continuous collector current of 3A, and a peak collector current of 6A. Control supply voltages range from 13.5V to 16.5V for the main logic and 13.0V to 18.5V for bias supplies.

Feature Summary

• Integrates fifth-generation IGBTs and application-specific HVICs to reduce inverter size and design time
• Features compact single-in-line transfer-molded packaging for space-constrained applications
• Supports direct connection to CPUs via integrated high-voltage level shifting
• Includes built-in self-protection circuitry including short-circuit and undervoltage lockout

Applications

• Washing Machines
• Refrigerators
• Air Conditioners
• Small Servo Motors
• Small Motor Control

Procurement Notes

Verify the specific suffix against official documentation to confirm pinout compatibility and thermal characteristics. Ensure that the ordering information matches the exact requirements for your application, as variations may exist between different manufacturing batches or revisions. Cross-reference the datasheet terminal codes with your PCB layout to guarantee correct signal mapping and isolation requirements are met.

Selection Notes

Select this module for applications requiring a compact solution for driving small three-phase motors. Consider the thermal resistance and heatsink operation temperature limits when designing the cooling system. Evaluate the control supply voltage ranges to ensure compatibility with the available drive electronics. Verify that the short-circuit protection trip levels align with the external shunt resistor selection for accurate fault detection.

Part Context

This component belongs to Powerex's Intellimod SIP-IPM family, designed specifically for AC motor control applications. It represents a consolidated approach to power electronics by combining power devices and drivers into a single unit. This integration simplifies the design process for manufacturers of household appliances and small industrial motor drives, offering a reliable alternative to discrete component solutions.

Replacement Considerations

PS21661-RZ

FAQ

What is the maximum junction temperature rating for the power chips?

The maximum junction temperature rating is 150°C, but safe operation requires limiting the average junction temperature to 125°C.

How does the module handle short-circuit protection?

Short-circuit protection functions only at the lower arms. An external shunt resistor must be selected to ensure the SC trip level remains below 5.1A.

Can the input signals connect directly to a microcontroller?

Yes, the integrated HVICs provide high-voltage level shifting, allowing direct connection of all six driving signals to the controller without additional level shifters.