A4986 Datasheet, PDF (3/14 Pages) Allegro MicroSystems – DMOS Dual Full-Bridge PWM Motor Driver with Overcurrent Protection

A4986
DMOS Dual Full-Bridge PWM Motor Driver
with Overcurrent Protection
Functional Block Diagram
0.1 μF
VREG
0.22 μF
REGULATOR
OSC
CHARGE PUMP
DMOS FULL-BRIDGE 1
Sense2
DAC
OCP
VREF
VDD
IN01
IN02
PH1
IN11
IN12
PH2
SLEEP
OSC
PWM Latch
BLANKING
Mixed Decay
CONTROL
LOGIC
GATE
DRIVE
DMOS FULL-BRIDGE 2
OCP
REF
PWM Latch
BLANKING
Mixed Decay
VREF
OSC
VCP VREG
VREG
VREF
DAC
Sense2
Sense2
VBB1
OUT1A
OUT1B
SENSE1
VBB2
OUT2A
OUT2B
SENSE2
0.1 μF
To
V_BB2
Allegro MicroSystems, Inc.
3
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]
www.allegromicro.com