DRV8801-Q1_16 Datasheet, PDF (15/28 Pages) Texas Instruments – DMOS Full-Bridge Motor Drivers

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8 Application and Implementation
DRV8801-Q1
SLVSAS7B – FEBRUARY 2011 – REVISED JANUARY 2016
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 DRV8801-Q1 device is used in medium voltage brushed DC motor control applications.
8.2 Typical Application
Controller
V_MCU
V_MCU
10 NŸ
0.2 Ÿ
DRV8801-Q1
1
nFAULT
2
MODE 1
3
PHASE
4
GND
5
nSLEEP
6
ENABLE
7
OUT+
8
SENSE
16
MODE 2
15
VPROPI
14
VCP
13
GND
12
CP2
11
CP1
10
OUT-
9
VBB
100 NŸ
0.1 µF
RC Filter
1000 pF
0.1 µF
V_BB
0.1µF
100µF
BDC
Figure 8. Typical Application Schematic
8.2.1 Design Requirements
For this design example, use the parameters listed in Table 3 as the input parameters.
DESIGN PARAMETER
Motor Voltage
Motor RMS Current
Motor Startup Current
Motor Current Trip Point
Table 3. Design Parameters
REFERENCE
VBB
IRMS
ISTART
ITRIP
EXAMPLE VALUE
24 V
0.8 A
2A
2.5 A
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