MC33035DWR2G

Overview

The MC33035DWR2G is a dedicated brushless DC motor controller manufactured by onsemi, designed for three-phase BLDC applications. It integrates Hall effect sensor signal processing, commutation logic, and pre-driver outputs. The device operates within a supply voltage range of 10V to 30V, with a maximum rating of 30V. It supports a maximum output voltage of 40V and provides up to 50mA output current per channel. The IC features six output interfaces for driving external power MOSFETs. It functions in both open-loop and closed-loop control modes, utilizing current capture circuits for current regulation and Hall signals for position and speed feedback. The component is housed in a 24-pin SOIC package.

Feature Summary

• Integrates Hall sensor decoding and commutation logic for three-phase brushless DC motors
• Supports open-loop operation and closed-loop control via current capture and Hall signal feedback
• Includes pre-driver outputs capable of interfacing directly with external power MOSFETs
• Operates reliably across an extended industrial temperature range

Applications

• Three-phase brushless DC motor drive control systems
• Electric bicycle motor controllers
• Compressor motor drive applications
• Pre-driver interface for microcontrollers such as MPC5604P

Procurement Notes

Verify the specific ordering suffix 'R2G' corresponds to the tape-and-reel packaging configuration when sourcing components. Confirm that the procurement source provides official documentation from onsemi or authorized distributors to ensure authenticity. Check for RoHS compliance markers consistent with the 'G' suffix designation. Ensure the supplier can provide traceability data required for automotive or industrial quality standards.

Selection Notes

Select this component for designs requiring integrated Hall sensor processing and commutation without external discrete logic. It is suitable for applications needing simultaneous open-loop start-up and closed-loop running modes. Consider the 24-pin SOIC package constraints for PCB layout. Evaluate the need for external current sensing circuits to utilize the internal current closed-loop control feature effectively.

Part Context

The MC33035 series serves as a specialized solution for low-cost, high-efficiency BLDC motor control. It bridges the gap between simple open-loop drivers and complex digital controllers. The DWR2G variant specifically denotes the reel-packaged version of the standard MC33035DWG, facilitating automated surface-mount assembly processes in high-volume manufacturing environments.

Replacement Considerations

MC33039 is documented as part of similar control architectures. Cross-reference pinouts and electrical characteristics carefully. No direct public substitute part numbers are confirmed for identical functional replacement.