MPC17550EVEL

Overview

The MPC17550EVEL is a fully integrated quad H-bridge micromotor driver featuring an on-chip DC/DC boost converter. Designed for bipolar stepper motors, it supports output currents up to 700mA per channel. The device operates with logic supplies down to 2.5V and motor supplies down to 1.6V, enabling functionality as Li-ion batteries discharge to 3.0V. It utilizes a 36-VMFP package and functions within a junction temperature range of -10°C to 150°C.

Feature Summary

• Integrates a DC/DC boost converter to drive high-side MOSFETs without external bootstrap components
• Supports low-voltage operation with logic supply down to 2.5V and motor supply down to 1.6V
• Provides full protection features including overcurrent, thermal shutdown, and undervoltage lockout

Applications

• Battery-powered portable devices requiring efficient motor control
• Bipolar stepper motor drives in consumer electronics
• Micromotor applications in handheld equipment

Procurement Notes

Verify the manufacturer designation carefully, as sources may list Freescale Semiconductor, NXP Semiconductors, or Texas Instruments due to corporate acquisitions and rebranding history. Confirm the specific suffix 'EVEL' corresponds to the 36-VMFP tape and reel packaging variant. Ensure the component matches the analog motor driver specification rather than microcontroller variants with similar naming conventions found in some distributor listings.

Selection Notes

Select this component when a compact solution for driving bipolar stepper motors is required without external power management circuitry. The integrated boost converter simplifies design by eliminating the need for discrete bootstrap diodes and capacitors. It is suitable for applications where space constraints prevent the use of larger driver ICs and where low standby current during battery operation is critical.

Part Context

This part belongs to the MPC17550 family of micromotor drivers developed originally by Freescale Semiconductor. The family includes variants such as the MPC17550EV. These devices are designed to replace discrete MOSFET solutions, offering reduced board space and improved reliability for small motor applications in portable consumer electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official NXP/Freescale cross-reference guides for compatible alternatives.