Datasheet > AMT49702

AMT49702

更新时间： 2024-10-27 01:23:51

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
10页	560K
描述
Dual DMOS Full-Bridge Motor Driver

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AMT49702 数据手册

AMT49702

Dual DMOS Full-Bridge Motor Driver

FEATURES AND BENEFITS

DESCRIPTION

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

voltage stepper motors and single and dual DC motors, the

AMT49702 is capable of output currents up to 1Aper channel

and operating voltages from 3.5 to 15 V.

• AEC-Q100 Grade 1 qualified

• Wide, 3.5 to 15 V input voltage operating range

• Dual DMOS full-bridges: drive two DC motors or

one stepper motor

• Low R_DS(ON)outputs

• Synchronous rectification for reduced power dissipation

• Low-current sleep mode

The AMT49702 is an automotive-grade device and is tested

across extended temperature and voltage ranges to ensure

compliance in automotive or industrial applications.

• Overcurrent protection

TheAMT49702 has an internal fixed off-time PWM timer that

sets a peak current based on the selection of a current sense

resistor. An output fault flag is provided that notifies the user

of a TSD or overcurrent protection event.

• Internal UVLO and thermal shutdown circuitry

• Integrated charge pump

PACKAGE:

The AMT49702 is supplied in a low-profile 16-lead TSSOP

(suffix “LP”) with exposed power tab for enhanced thermal

dissipation.

16-lead TSSOP

(suffix LP)

Not to scale

VCP

0.1 µF

3.5 to 15 V

VBB

SLEEPn

AMT49702

IN1

IN2

OUT1A

CINL3K

OUT1B

IN4

Motor

Step

Motor

SENSE1

FAULTn

SENSE1

OUT2A

OUT2B

OUT2A

OUT2B

Motor

GND

SENSE2

GND

Figure 1: Typical Applications

AMT49702-DS, Rev. 2

MCO-0000239

September 12, 2018

12 3 4 5 6 7...10

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