MP6543AGL-Z

Overview

The MP6543AGL-Z is a three-phase power stage designed for brushless DC motor applications. It integrates three half-bridges, pre-drivers, gate drive power supplies, and current sampling amplifiers. The device supports separate high-side and low-side inputs for control. It operates within a supply voltage range of 3V to 12V and provides a continuous output current of 2A. The component utilizes NMOS technology and features an internal charge pump to support 100% duty cycle operation. It is housed in a 24-QFN (3mm x 4mm) package with exposed pad.

Feature Summary

• Integrates three half-bridges with independent high-side and low-side input controls
• Includes internal charge pump and trickle charge circuit for full duty cycle capability
• Features integrated bidirectional current sampling amplifier with adjustable overcurrent protection threshold

Applications

• Brushless DC (BLDC) motor drives
• Three-phase motion control systems
• Industrial automation actuators

Procurement Notes

Verify availability status as the part may be subject to limited supply or factory special orders. Confirm the specific suffix GL indicates the package type and RoHS compliance. Ensure design compatibility with separate high-side and low-side input requirements rather than Hall-element or standard PWM/ENBL configurations found in other variants.

Selection Notes

Select this variant when separate high-side and low-side logic inputs are required for the three-phase power stage. Compare against MP6543BGL-Z if Hall-element inputs are preferred, or MP6543GL-Z if standard ENBL/PWM inputs are sufficient. Verify thermal performance requirements given the 2A continuous current rating and QFN-24 package constraints.

Part Context

This component belongs to the MP6543 series of monolithic three-phase power stages from Monolithic Power Systems. The series differentiates variants by input configuration: MP6543 uses ENBL/PWM, MP6543A uses separate HS/LS inputs, and MP6543B uses Hall-element inputs. All share the same core power stage architecture and protection features.

Replacement Considerations

• MP6543GL-Z
• MP6543BGL-P

FAQ

What distinguishes the MP6543AGL-Z input configuration?

It utilizes separate high-side and low-side inputs for each phase, unlike the MP6543B which uses Hall-element inputs.

Does the MP6543AGL-Z support 100% duty cycle operation?

Yes, it includes an internal charge pump and trickle charge circuit to maintain sufficient gate drive voltage for 100% duty cycle.