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| DRV8801A-Q1 Datasheet, PDF (8/24 Pages) Texas Instruments – DMOS Full-Bridge Motor Drivers | |||
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DRV8801A-Q1
SLVSC79C â JUNE 2014 â REVISED JULY 2016
7 Detailed Description
www.ti.com
7.1 Overview
The DRV8801A-Q1 device is an integrated motor driver solutions 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 6.5 V and 36 V, and is capable of providing an output current up to 2.8-A peak.
A simple PHASE and 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 outputs a voltage that is five-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
0.1 µF
+
100 µF
0.1 µF
VBB
VCP
CP2
0.1 µF
CP1
PHASE
ENABLE
MODE1
MODE2
VCC
nSLEEP
VCC
nFAULT
VCP
VBB
Charge Pump
Pre-
drive
VCP
VBB
OUTA
BDC
Logic
Pre-
Drive
x5
Undervoltage
Temperature
Sensor
OUTB
SENSE
VPROPI
R(VPROPI)
100 kŸ
1000 pF
R(SENSE)
GND PPAD GND
8
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Copyright © 2014â2016, Texas Instruments Incorporated
Product Folder Links: DRV8801A-Q1
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