MP6543CGL-Z

Overview

The MP6543CGL-Z is a discontinued three-phase BLDC motor driver from Monolithic Power Systems. It integrates a power stage with 1.2A output current capability and operates on a 3V to 22V supply voltage. The device features ENABLE and PWM inputs for each half-bridge, housed in a QFN-24 package. It supports an operating temperature range of -40°C to +125°C with a maximum power dissipation of 2.6W.

Feature Summary

• Integrates three half-bridges with dedicated ENABLE and PWM control inputs
• Includes internal charge pump and trickle charging circuitry for gate drive management
• Provides overcurrent protection with adjustable thresholds and integrated bidirectional current sampling

Applications

• Three-phase brushless DC motor control systems
• General-purpose motion control applications
• Industrial automation equipment requiring integrated motor driving

Procurement Notes

This component is officially obsolete and no longer manufactured by Monolithic Power Systems. Verification of availability should focus on the designated parameter-equivalent substitute, MP6543CGL-P. Users must confirm that the replacement part meets all original electrical specifications and pinout compatibility before integration into existing designs.

Selection Notes

Designers should evaluate the MP6543CGL-P as the primary alternative due to its parameter equivalence. Considerations include verifying the 1.2A continuous output current against load requirements and ensuring the 22V maximum supply voltage aligns with system power rails. Thermal performance within the QFN-24 package must be assessed under expected ambient conditions.

Part Context

The MP6543CGL-Z belongs to the MP6543 series of three-phase BLDC motor drivers. This family integrates power MOSFETs, pre-drivers, and control logic into a single solution. The specific 'C' suffix variant distinguishes it from other series members like the MP6543A or MP6543B, which offer different input configurations such as independent high/low side or Hall signal inputs.

Replacement Considerations

MP6543CGL-P is confirmed as a parameter-equivalent substitute available from the manufacturer.