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MPC17531AR2 Datasheet

  • MPC17531AR2

  • 700?mA Dual H-Bridge Motor Driver with 3.0V Compatible Logic...

  • 19頁

  • FREESCALE

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Freescale Semiconductor
Technical Data
Document order number: MPC17531A
Rev 2.0, 09/2005
700 mA Dual H-Bridge Motor
Driver with 3.0 V Compatible
Logic I/O
The 17531A 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 17531A operates from 2.0 V to 8.6 V using the internal charge
pump, with independent control of each H-Bridge via parallel MCU
interface. The device features built-in shoot-through current
protection and an undervoltage shutdown function.
The 17531A has four operating modes: Forward, Reverse, Brake,
and Tri-Stated (High Impedance). The 17531A has a low total
R
DS(ON)
of 1.2
鈩?/div>
(max @ 25擄C).
The 17531A efficiently drives many types of micromotors with low
power dissipation owing to its low output resistance and high output
slew rates. The H-Bridge outputs can be independently pulse width
modulated (PWM鈥檈d) at up to 200 kHz for speed/torque and current
control.
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Low Total RDS(ON) 0.8 W (Typ), 1.2
鈩?/div>
(Max) @ 25
擄C
Output Current 0.7 A (DC)
Shoot-Through Current Protection Circuit
PWM Control Input Frequency up to 200 kHz
Built-In Charge Pump Circuit
Low Power Consumption
Undervoltage Detection and Shutdown Circuit
Power Save Mode with Current Draw
鈮?/div>
2.0
碌A(chǔ)
Pb-Free Packaging Designated by Suffix Codes EV and EP
17531A
DUAL H-BRIDGE
VMFP SUFFIX
EV SUFFIX (PB-FREE)
98ASA10616D
20-TERMINAL VMFP
QFN SUFFIX
EP SUFFIX (PB-FREE)
98ARL10577D
24-TERMINAL QFN
ORDERING INFORMATION
Device
MPC17531AEV/EL
MPC17531AEP/R2
Temperature
Range (T
A
)
-20擄C to 65擄C
Package
20 VMFP
24 QFN
3.0 V
5.0 V
17531A
VDD
VM
C1L
C1H
C2L
OUT1A
C2H
CRES OUT1B
IN1A OUT2A
IN1B OUT2B
IN2A
IN2B
PSAVE
GND
Bipolar
Step
Motor
S
N
MCU
Figure 1. 17531A Simplified Application Diagram
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
漏 Freescale Semiconductor, Inc., 2005. All rights reserved.

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