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DRV8701ERGET Datasheet(数据表) 28 Page - Texas Instruments

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部件型号  DRV8701ERGET
说明  DRV8701 Brushed DC Motor Full-Bridge Gate Driver
下载  42 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
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DRV8701ERGET Datasheet(HTML) 28 Page - Texas Instruments

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 28 page
background image
GH2
SH2
GL2
SP
SN
GL1
AVDD
DVDD
nFAULT
SNSOUT
SO
IDRIVE
24
23
22
21
20
19
7
8
9
10
11
12
GND
(PPAD)
0.1 µF
Bulk
+
VM
1 µF
0.1 µF
R1
R2
33 k
Ÿ
10 k
Ÿ
10 k
Ÿ
1 µF
1 µF
50 m
Ÿ
VM
VM
BDC
DRV8701
SLVSCX5B – MARCH 2015 – REVISED JULY 2015
www.ti.com
8 Application and Implementation
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 DRV8701 is used in brushed-DC, solenoid, or relay control.
8.2 Typical Applications
8.2.1 Brushed-DC Motor Control
The following design procedure can be used to configure the DRV8701.
Figure 34. Typical Application Schematic
8.2.1.1 Design Requirements
Table 10 gives design input parameters for system design.
Table 10. Design Parameters
Design Parameter
Reference
Example Value
Nominal supply voltage
VM
18 V
Supply voltage range
VMMIN, VMMAX
12 to 24 V
FET total gate charge(1)
QG
14 nC (typically)
FET gate-to-drain charge(1)
QGD
2.3 nC (typically)
Target FET gate rise time
RT
100 to 300 ns
Motor current chopping level
ICHOP
3 A
(1)
FET part number is CSD88537ND.
28
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Copyright © 2015, Texas Instruments Incorporated
Product Folder Links: DRV8701




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