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AMT49702 PDF预览

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

AMT49702 数据手册

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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 RDS(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  
VCP  
0.1 µF  
0.1 µF  
3.5 to 15 V  
3.5 to 15 V  
VBB  
VBB  
SLEEPn  
SLEEPn  
AMT49702  
AMT49702  
IN1  
IN1  
IN2  
IN2  
OUT1A  
OUT1A  
IN3
IN3
OUT1B  
OUT1B  
IN4  
IN4  
DC  
Motor  
Step  
Motor  
SENSE1  
FAULTn  
FAULTn  
SENSE1  
OUT2A  
OUT2B  
OUT2A  
OUT2B  
DC  
Motor  
GND  
SENSE2  
SENSE2  
GND  
Figure 1: Typical Applications  
AMT49702-DS, Rev. 2  
MCO-0000239  
September 12, 2018  

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