BM63967S-VC

Overview

The ROHM BM63967S-VC is a high-performance Intelligent Power Module (IPM) designed for high-speed switching motor control applications. It integrates a gate driver, bootstrap diode, IGBTs, and freewheeling diodes into a single package to form a three-phase DC/AC inverter. The module features a 600V voltage rating and supports a collector current of up to 30A. Key electrical parameters include a typical IGBT saturation voltage (Vce(sat)) of 1.7V and a typical diode forward voltage (Vf) of 1.5V. Switching characteristics include a high-side turn-on delay time (tonH) of 0.95µs and a turn-off delay time (toffH) of 1.40µs. It operates with AC input voltages ranging from 100 to 240 Vrms.

Feature Summary

• Integrates high-side IGBT drivers using SOI process with built-in bootstrap diodes and current limiting, eliminating the need for external components.
• Provides low-side protection through short-circuit current protection (SCP) and control supply under-voltage lockout (UVLO).
• Features an open emitter design for low-side IGBTs, facilitating direct connection to load neutral points.
• Includes thermal monitoring capability via analog voltage output on the VOT pin for real-time temperature detection.

Applications

• High-speed switching drive for washing machine motors
• Fan motor control systems
• Three-phase AC motor drives operating within 100-240 Vrms input ranges

Procurement Notes

Verify the specific suffix (VA vs VC) against the official datasheet to ensure correct pinout and internal configuration compatibility. Confirm that the application does not require automotive-grade certification, as this series is generally designated for standard industrial or consumer use. Check for any recent product change notices regarding lead times or packaging updates directly from the manufacturer's official channels before finalizing procurement plans.

Selection Notes

Select this IPM when designing systems requiring high-speed switching capabilities with integrated protection features. Ensure the thermal management solution can handle the power dissipation associated with 30A continuous operation. Verify that the control logic interfaces correctly with the 3.3V or 5V input requirements. Consider the open emitter configuration if the application demands specific grounding arrangements for the low-side switches.

Part Context

This component belongs to the BM63967S series of intelligent power modules from ROHM Semiconductor. These modules are engineered specifically for efficient motor control in household appliances and industrial equipment. The series leverages SOI technology to achieve compact integration of power and control circuits, reducing system complexity and board space compared to discrete solutions.

Replacement Considerations

BM63967S-VA

FAQ

Does the BM63967S-VC require external bootstrap diodes?

No, the module includes built-in bootstrap diodes for the high-side IGBT drivers, simplifying the external circuit design.

How is the internal temperature monitored?

The low-side IGBT gate driver detects its own temperature and outputs an analog voltage signal via the VOT pin.

What protection features are included for the low-side IGBTs?

The low-side drivers feature short-circuit current protection (SCP) and control supply under-voltage lockout (UVLO), which trigger a fault signal output.