Datasheet > A5950

A5950

更新时间： 2022-02-26 11:03:08

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
11页	468K
描述
Motor lead short-to-ground protection

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A5950 数据手册

A5950

DC Motor Driver

FEATURES AND BENEFITS

DESCRIPTION

Designed for pulse-width-modulated (PWM) control of DC

motors, the A5950 is capable of peak output currents up to

±3 A and operating voltages up to 40 V.

• Overcurrent protection (OCP)

• Motor lead short-to-ground protection

• Motor lead short-to-battery protection

• Motor short protection

• Low-power standby mode

• Fault output

Inputterminalsareprovidedforuseincontrollingthespeedand

direction of a DC motor with externally applied PWM control

signals. Internal synchronous rectification control circuitry is

provided to lower power dissipation during PWM operation.

• Adjustable current limit option

• Current-to-voltage output

Internal circuit protection includes overcurrent protection,

motor lead short to ground or supply, thermal shutdown with

hysteresis, undervoltage monitoring of VBB, and crossover-

current protection.

• Synchronous rectification – high-side

• Internal UVLO

• Crossover-current protection

• Thermal warning and shutdown function

• AEC-Q100 Grade 1 qualified – K version

TheA5950issuppliedinalow-profile4mm×4mm16-contact

QFN (suffix “EU”) package with wettable flank option (suffix

“-P”),ora16-leadeTSSOP(suffix“LP”),allthreewithexposed

power tab for enhanced thermal performance.

PACKAGES:

Not to scale

16-lead QFN

with exposed themal pad

(suffix EU, option -T)

16-lead QFN

with exposed themal pad

and wettable flank (suffix EU, option -P)

16-lead TSSOP

with exposed themal pad

(suffix LP)

OCL2

OCP

FAULTn

RESETn

UVLO

TWarn

Load

Supply

CHARGE

PUMP

VBB

Disable

PHASE

OUT1

OUT2

ENABLE

CONTROL

LOGIC

7 V

MODE

LSS

OCLSEL

GND

R_SENSE(optional)

OCL1

OCL2

×5

AIOUT

500 mV

VREF

÷10

Figure 1: Functional Block Diagram

A5950-DS, Rev. 2

MCO-0000177

May 11, 2017

12 3 4 5 6 7...11

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