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Document Number: MPC17C724
Rev 3.0, 9/2014
Freescale Semiconductor
Technical Data
© Freescale Semiconductor, Inc., 2012-2014. All rights reserved.
0.4 A Dual H-Bridge Motor Driver
IC
The 17C724 is a SMARTMOS compact monolithic dual channel H-
Bridge power IC, ideal for portable electronic applications containing
bipolar stepper motors or brush DC motors such as those used in
camera lenses and shutters.
The 17C724 can operate efficiently with supply voltages from 2.7 V
to 5.5 V and can provide continuous motor drive currents of 0.4 A with
low R
DS(on)
of 1.0 . It is easily interfaced to low cost MCUs via
parallel 3.0 V or 5.0 V compatible logic and has built-in shoot-through
current protection circuit and undervoltage detector to avoid
malfunction.
The 17C724 has four output control modes: forward, reverse,
brake, and tri-state (high-impedance). The H-Bridge outputs are
designed to be independently PWMed at up to 200 kHz for speed/
torque and current control.
Features
• Manufactured in SMOS7 process technology
• Built-in 2-channel H-Bridge driver
• Provides 4 driving modes (forward, reverse, break, high-
impedance)
• Direct interface to MCU
• Low ON-Resistance, R
DS(on)
= 1.0 (typical)
• Dual channel parallel drive, R
DS(on)
= 0.5 (typical)
• Output current driver is 400 mA (continuous)
• Low power consumption
• Built-in shoot-through current prevention circuit
• Built-in low voltage shutdown circuit
• PWM control frequency 200 kHz (max)
• Very compact size, comes in 16-pin QFN Package (3 x 3 mm pin Pitch: 0.5 mm)
Figure 1. 17C724 Simplified Application Diagram
SCALE 4:1
MOTOR DRIVER
EP (Pb-FREE) SUFFIX
98ASA00741D
16-Pin QFN
17C724
ORDERING INFORMATION
Device
(For Tape and Reel, add an
R2 Suffix)
Temperature
Range (T
A
)
Package
MPC17C724EP -20 °C to 85 °C 16 QFN
MCU
3.0 V
17C724
Bipola
r
Step
Motor
VDD
VM
OUT1A
OUT1B
OUT2B
OUT2A
GND
IN1A
IN1B
IN2A
IN2B
PSAVE
N
S
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