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A4987SESTR-T Datasheet(PDF) 3 Page - Allegro MicroSystems

Part # A4987SESTR-T
Description  DMOS Dual Full-Bridge PWM Motor Driver with Overcurrent Protection
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Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems

A4987SESTR-T Datasheet(HTML) 3 Page - Allegro MicroSystems

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DMOS Dual Full-Bridge PWM Motor Driver
with Overcurrent Protection
A4987
3
Allegro MicroSystems, Inc.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
www.allegromicro.com
Functional Block Diagram
0.1 μF
REGULATOR
GATE
DRIVE
CHARGE PUMP
DMOS FULL-BRIDGE 1
0.1 μF
DMOS FULL-BRIDGE 2
VCP
PWM Latch
BLANKING
Mixed Decay
To
VBB2
IN02
PH1
IN11
SENSE1
OUT1B
OUT1A
VBB1
SENSE2
OUT2B
OUT2A
VBB2
VREG
VDD
CONTROL
LOGIC
OSC
OSC
VREG
0.22 μF
Sense2
IN01
IN12
PH2
DAC
VREF
Sense2
SLEEP
OCP
OCP
DAC
VREF
PWM Latch
BLANKING
Mixed Decay
OSC
Sense2
VREG
REF
VREF


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