MPC17531ATEV

Overview

The MPC17531ATEV is a dual H-bridge motor driver IC from NXP Semiconductors, designed for low-voltage applications. It integrates internal control logic, a charge pump, gate drivers, and high-current, low RDS(on) MOSFET output circuitry. The device supports driving a single two-phase stepper motor or two brushed DC motors. Key electrical parameters include a supply voltage range of 2.7V to 3.6V and a load voltage range of 2V to 8.6V. The continuous output current is rated at 700mA per channel. The operating junction temperature range extends from -20°C to 150°C.

Feature Summary

• Integrates full control logic, charge pump, and gate drive with low on-resistance power MOSFETs
• Capable of driving either a single bipolar stepper motor or two separate brushed DC motors
• Designed for battery-powered applications with wide load voltage tolerance

Applications

• Battery-powered consumer electronics
• Small robotic actuators
• Precision positioning systems using stepper motors
• Low-power DC motor control in portable devices

Procurement Notes

Verify component status carefully as the MPC17531ATEV and related variants are listed as End of Life or Discontinued by NXP USA Inc. Confirm availability through authorized distributors only, noting that stock may be limited or obsolete. Ensure the specific package type (e.g., VMFP or QFN) matches the design requirements, as multiple package options exist within the family. Cross-reference datasheet revisions to confirm pinout and electrical characteristics remain consistent with original specifications before finalizing procurement.

Selection Notes

Select this component when a fully integrated dual H-bridge solution is required for low-voltage, low-current motor applications. It is suitable for designs needing to drive bipolar steppers or two independent brushed DC motors from a single chip. Consider the 2.7V-3.6V supply constraint and ensure the application does not require higher voltage operation beyond the 8.6V load limit. Evaluate thermal performance given the 150°C max junction temperature and 700mA current rating against the expected PCB layout and ambient conditions.

Part Context

The MPC17531ATEV belongs to the MPC17531A series of dual H-bridge motor drivers. This family is characterized by its integration of control and power stages, simplifying design for small motor drives. Variants such as MPC17531ATEP and MPC17531AEVEL share similar core functionalities but differ in packaging and tape/reel configurations. The series targets cost-sensitive, space-constrained applications requiring reliable motor control without external discrete components.

Replacement Considerations

Public confirmed substitute part numbers are not explicitly provided in the available documentation. As the product is discontinued, engineers should consult NXP's official obsolescence notices or distributor cross-reference tools for potential last-time buys or functional equivalents. No direct replacement part numbers are verified in the source text.