DRV8801-Q1_16 Datasheet, PDF (10/28 Pages) Texas Instruments – DMOS Full-Bridge Motor Drivers

DRV8801-Q1
SLVSAS7B – FEBRUARY 2011 – REVISED JANUARY 2016
7 Detailed Description
www.ti.com
7.1 Overview
The DRV8801-Q1 is an integrated motor driver solution for brushed-DC motors. The device integrates a DMOS
H-bridge and current sense and protection circuitry. The device can be powered with a supply voltage between 8
and 38 V, and is capable of providing an output current up to 2.8 A peak.
A simple PHASE-ENABLE interface allows control of the motor speed and direction.
A shunt amplifier output is provided for accurate current measurements by the system controller. The VPROPI
pin will output a voltage that is 5 times the voltage seen at the SENSE pin.
A low-power sleep mode is included which allows the system to save power when not driving the motor.
7.2 Functional Block Diagram
VBB
bulk
0.1 µF 0.1 µF
VCP
0.1 µF
CP1
CP2
GND
GND
PPAD
PHASE
ENABLE
MODE1
MODE1
nSLEEP
Power
VBB
VCP
VCP
VBB
Pre-
Driver
OUT1
Charge
Pump
Regulators
Inputs
VCP
VBB
Core
Logic
Pre-
Driver
Protection
Overcurrent
Monitoring
Temperature
Sensor
Voltage
Monitoring
Outputs
x₅
BDC
OUT2
SENSE
R_SENSE
V_MCU
nFAULT
VPROPI
R_VPROPI
10
Submit Documentation Feedback
Copyright © 2011–2016, Texas Instruments Incorporated
Product Folder Links: DRV8801-Q1