CAB320M17XM3

Overview

The Wolfspeed CAB320M17XM3 is a 1700 V Silicon Carbide half-bridge power module utilizing third-generation SiC MOSFET technology. It features a high-power-density footprint with a typical drain-source on-state resistance of 3.5 mΩ and a continuous drain current rating of 320 A at 25 °C case temperature. The device incorporates a low-inductance design with 6.7 nH stray inductance, silicon nitride insulation, and a copper baseplate. Key electrical parameters include a maximum gate-source voltage of +19 V transient and -8 V, an operational junction temperature range up to 175 °C, and integrated NTC temperature sensing for thermal protection.

Feature Summary

• Implements Wolfspeed’s Third Generation SiC MOSFET Technology
• Low-Inductance (6.7 nH) Design with Cross-pin Gate-Source Signal Pinout
• Silicon Nitride Insulator and Copper Baseplate Construction
• Integrated Isolated Temperature Sensing via Dedicated NTC Pins

Applications

• Traction Inverters
• Motor & Motion Control
• Energy Systems
• Transportation
• Test and Production Equipment

Procurement Notes

Verify the specific revision status against the latest official datasheet before procurement, as product specifications are subject to change without notice. Confirm that the ordering suffix XM3 corresponds to the required pin configuration and package dimensions. Ensure compatibility with the designated mounting torque requirements for both the baseplate and power terminals to maintain proper thermal interface performance and mechanical stability during operation.

Selection Notes

Select this module for applications requiring high blocking voltage and low conduction losses in compact form factors. Evaluate the thermal management strategy carefully, considering the junction-to-case thermal resistance and the derating curves provided for continuous drain current versus case temperature. Ensure the gate driver circuitry supports the recommended operating gate voltage of 15 V and can handle the fast switching speeds indicated by the timing characteristics to optimize system efficiency.

Part Context

This component belongs to Wolfspeed's WolfPACK™ series of silicon carbide power modules. It is designed for industrial and automotive-grade applications demanding high reliability and efficiency. The XM3 designation indicates a specific package style optimized for direct bus bar connection, facilitating simple, low-inductance PCB or busbar designs compared to traditional wire-bonded or screw-terminal alternatives.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. When evaluating potential replacements, ensure the alternative device matches the 1700 V rating, half-bridge configuration, and physical footprint to maintain compatibility with existing thermal and mechanical designs.

FAQ

What is the recommended operational gate-source voltage for the CAB320M17XM3?

The recommended turn-on gate voltage is 15 V with a ±5% regulation tolerance. The operational gate-source voltage range is specified as -4 V to +15 V.

How does the module provide overcurrent protection capabilities?

The module includes dedicated high-side Kelvin-drain pins (pins 8 and 9) that enable direct voltage sensing for gate driver overcurrent protection, allowing for precise monitoring of the high-side switch.

What is the stray inductance value between the main power terminals?

The stray inductance between terminals 2 (V-) and 3 (V+) is typically 6.7 nH, measured at a frequency of 10 MHz.