NXP Semiconductors MPC17C724EP

Overview

MPC17C724EP from NXP Semiconductors (formerly Freescale) is a dual-channel H-bridge motor driver IC designed for compact portable motor control applications. It delivers 0.4 A continuous per channel, operates from 2.7 V to 5.5 V, features 1.0 Ω typical R_DS(on), and supports four output modes - forward, reverse, brake, and high-impedance - enabling precise bipolar stepper or brushed DC motor control in camera lens and shutter modules.

For engineers reviewing the MPC17C724EP datasheet, MPC17C724EP pinout, MPC17C724EP application, or MPC17C724EP equivalent, key selection criteria include its 16-pin QFN (3 × 3 mm) package, 200 kHz PWM capability, integrated shoot-through protection, undervoltage lockout at 2.0 V (typ), and dual independent H-bridge architecture with separate VM1/VM2 and PGND1/PGND2 routing.

Technical Context

The MPC17C724EP integrates two fully independent SMARTMOS H-bridges with matched source/sink R_DS(on) of 1.0 Ω (typ) per channel and parallel drive capability yielding 0.5 Ω effective R_DS(on). Its logic interface accepts 3.0 V or 5.0 V compatible inputs, and internal level shifters decouple logic (VDD/LGND) from power (VM/PGND) domains.

Control logic includes dedicated PSAVE input for global output disable and low-voltage shutdown circuitry that forces all outputs into high-impedance when VDD drops below 2.0 V (typ), while maintaining operation if PSAVE = HIGH. Timing parameters specify 0.2 μs typical turn-on and 0.1 μs typical turn-off propagation delays under RL = 6.8 Ω load.

Key Specifications

Pinout & Package

Package: 16-pin QFN (3 mm × 3 mm, 0.5 mm pitch), exposed pad (EP) for thermal dissipation and ground connection. Pin 1 marked by dot; top-side view matches standard JEDEC MO-220 layout.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual H-bridge motor driver applications.

Compared with TB6612FNG and DRV8833, the MPC17C724EP provides superior integration for low-power portable optics - combining ultra-low standby current (1.0 μA), built-in UVLO and shoot-through protection, and guaranteed 200 kHz PWM operation - without requiring external components or compromising on reliability.

Availability

MPC17C724EP is available at Aetrix Electronics and suitable for camera lens actuation, auto-focus shutter mechanisms, and portable medical imaging probe designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for MPC17C724EP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and consumer applications, with deep expertise in analog and mixed-signal power ICs.

The MPC17C724EP belongs to NXP's SMARTMOS family of monolithic motor drivers, engineered specifically for ultra-compact, low-voltage portable imaging and precision motion control systems where size, efficiency, and functional safety are critical.

FAQ

What is the maximum continuous motor current supported by the MPC17C724EP?

The MPC17C724EP supports 400 mA continuous current per H-bridge channel under specified thermal conditions (T_A ≤ 85 °C, multi-layer PCB with thermal vias). Peak current capability is 800 mA for 10 ms pulses at 200 ms intervals. This rating is validated with R_DS(on) = 1.0 Ω (typ) and ensures reliable operation in camera lens and shutter applications without external heatsinking.

Does the MPC17C724EP require external components for basic operation?

No, the MPC17C724EP operates autonomously with only external motor loads and supply decoupling capacitors. It integrates shoot-through prevention, undervoltage lockout, and logic-level translation - eliminating need for external diodes, resistors, or charge pumps. A minimum 1 μF ceramic capacitor between each VM pin and PGND is recommended for transient suppression, per datasheet guidance.

How does the PSAVE pin affect the MPC17C724EP's undervoltage protection?

When PSAVE is driven HIGH, the MPC17C724EP disables all H-bridge outputs and also deactivates the VDD undervoltage detection circuit - meaning outputs remain in high-impedance regardless of VDD level. When PSAVE is LOW, normal operation resumes and the 2.0 V (typ) UVLO threshold becomes active, forcing outputs to high-impedance if VDD drops below this threshold.

Can the MPC17C724EP drive a bipolar stepper motor directly?

Yes, the MPC17C724EP is explicitly designed for bipolar stepper motor control. Its dual H-bridges connect directly to the two motor phases (A and B), supporting full-step, half-step, and microstepping via coordinated IN1A/IN1B/IN2A/IN2B logic sequences. The truth table (Table 5) defines all valid states including forward, reverse, brake, and high-impedance for precise commutation.

What is the significance of separate VM1/VM2 and PGND1/PGND2 pins on the MPC17C724EP?

Although VM1 and VM2 are internally connected, and PGND1 and PGND2 share an internal node, the MPC17C724EP provides separate pins to minimize PCB trace inductance and voltage drop in high-current motor paths. Designers must externally short VM1–VM2 and PGND1–PGND2 with low-inductance, wide copper traces - a requirement critical for stable 400 mA operation and EMI reduction in optical systems.