Document Number: MPC17529

Rev. 4.0, 10/2015

Freescale Semiconductor

Technical Data

© Freescale Semiconductor, Inc., 2012-2015. All rights reserved.

0.7 A Dual H-Bridge Motor Driver

with 3.0V/5.0V Compatible Logic I/O

The 17529 is a monolithic dual H-Bridge power IC ideal for portable

electronic applications containing bipolar step motors and/or brush DC-motors

(e.g., cameras and disk drive head positioners).

The 17529 operates from 2.0 V to 6.8 V, with independent control of each H-

Bridge via parallel MCU interface (3.0 V and 5.0 V compatible logic). The device

features an on-board charge pump, as well as built-in shoot-through current

protection and an undervoltage shutdown function.

The 17529 has four operating modes: forward, reverse, brake, and tri-stated

(high-impedance). The 17529 has a low total RDS(on) of 1.2 Ω (max at 25 °C).

The 17529’s low output resistance and high slew rate provides efficient drive

for many types of micromotors.

Features

• Low total RDS(on) 0.7 Ω (typ), 1.2 Ω (max) at 25 °C

• Output current 0.7 A (DC), 1.4 A (peak)

• Shoot-through current protection circuit

•3.0 V/5.0 V CMOS-compatible inputs

• PWM control input frequency up to 200 kHz

• Built-in charge pump circuit

• Low power consumption

• Undervoltage detection and shutdown circuit

Figure 1. 17529 Simplified Application Diagram

DUAL H-BRIDGE

EV SUFFIX (PB-FREE)

98ASA10616D

20-PIN VMFP

17529

EJ SUFFIX (PB-FREE)

98ASA00887D

20-PIN TSSOP

WITH EXPOSED PAD

VDD

CRES

C1L

C1H

C2L

C2H

IN2B

OE

IN2A

IN1A

OUT2B

OUT2A

OUT1B

OUT1A

VM 1/2

GND

MCU

IN1B

5.0 V

5.0 V

17529

Bipolar

Step

Motor

N

S

PGND1/2