MC33039PG

Overview

The MC33039PG is a high-performance closed-loop speed control adapter designed for brushless DC motor systems. It enables precise speed regulation without magnetic or optical tachometers. The device features three hysteresis input buffers, digital edge detectors, a programmable monostable, and an internal shunt regulator. It operates from 5.5 V to 9 V in an 8-pin PDIP package.

Feature Summary

• Digital detection of each input transition improves low-speed motor operation
• TTL compatible inputs with hysteresis provide noise immunity
• Internal shunt regulator allows operation from non-regulated voltage sources
• Inverter output facilitates conversion between different sensor phasing conventions

Applications

• Brushless DC motor control systems
• Closed-loop speed control applications
• Systems requiring direct powering from MC33035 reference

Procurement Notes

Verify the specific suffix PG indicates an 8-pin PDIP package when sourcing. Confirm RoHS compliance status as packages may vary. Check manufacturer documentation for lead-free availability and material declarations. Ensure the component matches the intended industrial temperature range requirements.

Selection Notes

Select this adapter when integrating with the MC33035 controller for cost-effective closed-loop solutions. It eliminates the need for external tachometers. Consider the 5.5 V minimum operating voltage for compatibility with reference supplies. Evaluate the internal shunt regulator benefits for non-regulated power sources.

Part Context

This component belongs to the MC33039 series of closed-loop brushless motor adapters. It is primarily intended for use with the MC33035 brushless motor controller. The device provides essential signal conditioning and logic functions for BLDC motor phases.

Replacement Considerations

MC33039P is a confirmed substitute part number within the same product family.