DRV8844_15 Datasheet, PDF (8/25 Pages) Texas Instruments – DRV8844 Quad ½-H-Bridge Driver IC

DRV8844
SLVSBA2C – JULY 2012 – REVISED MAY 2015
8 Detailed Description
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8.1 Overview
The DRV8844 integrates four independent 2.5-A half-H bridges, protection circuits, sleep mode, and fault
reporting. Its single power supply supports a wide 8 to 60 V, making it well-suited for motor drive applications,
including brushed DC, steppers, and solenoids.
8.2 Functional Block Diagram
VM
10µF 0.1µF
VNEG
0.1µF
VM
VCP
CP1
CP2
V3P3OUT
0.47µF
LGND
PPAD
VNEG
IN1
EN1
IN2
EN2
IN3
EN3
IN4
EN4
nRESET
nSLEEP
Power
VM
VCP
Charge
Pump
Regulators
Control
Inputs
Core
Logic
VCP
Pre-
driver
VCP
Pre-
driver
VCP
Pre-
driver
VCP
Pre-
driver
VM
OUT1
OCP
VNEG
VM
OUT2
OCP
VNEG
VM
OUT3
OCP
VNEG
VM
OUT4
OCP
VNEG
Protection
Temperature
sensor
Overcurrent
monitors
Undervoltage
monitor
Output
nFAULT
8
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