MPC17531AEV/EL 查看數據表（PDF） - Freescale Semiconductor

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MPC17531AEV/EL

700 mA Dual H-Bridge Motor Driver with 3.0 V Compatible Logic I/O

Freescale Semiconductor 

Freescale Semiconductor

Technical Data

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

RDS(ON) of 1.2 Ω (max @ 25°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’ed) at up to 200 kHz for speed/torque and current

control.

Features

• Low Total RDS(ON) 0.8 W (Typ), 1.2 Ω (Max) @ 25°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 ≤ 2.0 µA

• Pb-Free Packaging Designated by Suffix Codes EV and EP

Document Number: MPC17531A

Rev. 3.0, 2/2008

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

Temperature

Range (TA)

Package

MPC17531AEV/EL

MPC17531AEP/R2

-20°C to 65°C

20 VMFP

24 QFN

3.0 V

5.0 V

17531A

VDD

VM

C1L

C1H

C2L

C2H

OUT1A

CRES OUT1B

IN1A OUT2A

Bipolar

MCU

IN1B OUT2B

IN2A

N Step

S

Motor

IN2B

PSAVE

GND

Figure 1. 17531A Simplified Application Diagram

Freescale Semiconductor, Inc. reserves the right to change the detail specifications,

as may be required, to permit improvements in the design of its products.

© Freescale Semiconductor, Inc., 2005. All rights reserved.

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