DRV8842_15 Datasheet, PDF (13/27 Pages) Texas Instruments – DC Motor Driver IC

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8 Application and Implementation
DRV8842
SLVSAB8F – MAY 2010 – REVISED DECEMBER 2015
NOTE
Information in the following applications sections is not part of the TI component
specification, and TI does not warrant its accuracy or completeness. TI’s customers are
responsible for determining suitability of components for their purposes. Customers should
validate and test their design implementation to confirm system functionality.
8.1 Application Information
The DRV8842 device is used in brushed motor or stepper motor control. The onboard current regulation allows
for limiting the motor current through simple pin configurations.
8.2 Typical Application
VM
0.1 µF
0.01 µF
0.1 µF
1M
1
CP1
2
CP2
3
VCP
4
VM
DRV8842
28
GND
27
I4
26
I3
25
I2
100 m
5
OUT1
6
ISEN
24
I1
23
I0
BDC
7
OUT2
NC ²²
8
OUT2
21
ENBL
9
ISEN
PHASE ²⁰
100 µF
VM
0.1 µF
10
OUT1
11
VM
12
VREF
13
VREF
DECAY ¹⁹
18
nFAULT
17
nSLEEP
16
nRESET
10 kŸ
14
GND
15
V3P3OUT
R1
0.47 µF
R2
Figure 7. Typical Application Schematic
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