Datasheet > MPC17531A_08

MPC17531A_08

更新时间： 2024-10-28 04:14:51

品牌	Logo	应用领域
飞思卡尔 - FREESCALE		驱动器电机
页数	文件大小	规格书
20页	644K
描述
700 mA Dual H-Bridge Motor Driver with 3.0 V Compatible Logic I/O

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MPC17531A_08 数据手册

Document Number: MPC17531A

Rev. 3.0, 2/2008

Freescale Semiconductor

Technical Data

700 mA Dual H-Bridge Motor

Driver with 3.0 V Compatible

Logic I/O

17531A

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).

DUAL H-BRIDGE

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 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.

VMFP SUFFIX

EV SUFFIX (PB-FREE)

98ASA10616D

QFN SUFFIX

EP SUFFIX (PB-FREE)

98ARL10577D

20-TERMINAL VMFP

24-TERMINAL QFN

Features

ORDERING INFORMATION

• 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

Temperature

Device

Package

Range (T )

MPC17531AEV/EL

MPC17531AEP/R2

20 VMFP

24 QFN

-20°C to 65°C

• 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

3.0 V

5.0 V

17531A

VDD

C1L

C1H

C2L

C2H

OUT1A

CRES OUT1B

Bipolar

Step

Motor

IN1A OUT2A

IN1B

OUT2B

MCU

IN2A

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.

12 3 4 5 6 7...20

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