SI-6633M

Overview

The SI-6633M is a fully integrated 3-phase brushless DC (BLDC) motor driver IC from Sanken Electric. It incorporates a control stage and power output stage in a single package. The device features rated current of 2A (DC) and 4A (peak) output DMOSFETs. Key functional blocks include pre-drive circuits, PWM current control, and comprehensive protection mechanisms. It is designed for general-purpose applications requiring efficient motor control.

Feature Summary

• Fully integrated control and power stage for 3-phase BLDC motors
• Built-in PWM current control capability
• Integrated protection functions for system reliability

Applications

• General-purpose BLDC motor control systems
• Industrial automation equipment
• Consumer appliances with brushless motors

Procurement Notes

Verify the specific ordering suffix to confirm package type and tape/reel specifications. Ensure compatibility with your PCB footprint for the 36-WFQFN exposed pad configuration. Confirm voltage ratings match your motor supply requirements before procurement.

Selection Notes

Select this component when a compact, integrated solution for 3-phase BLDC motors is required. Consider the 2A DC/4A peak current limits against your motor's operational needs. Evaluate the need for external components versus the integrated nature of this driver.

Part Context

This part belongs to Sanken Electric's motor driver portfolio, specifically targeting brushless DC applications. It replaces discrete solutions by integrating gate drivers, logic, and power MOSFETs into a single chip, reducing board space and design complexity.

Replacement Considerations

Check for direct pin-to-pin replacements within the SI-663 series if available. Verify that alternative drivers support similar current ratings and protection features. Ensure thermal performance matches the original design constraints.