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DRV10974 Scheda tecnica(PDF) 22 Page - Texas Instruments

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Il numero della parte DRV10974
Spiegazioni elettronici  12-V, Three-Phase, Sensorless BLDC Motor Driver
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Produttore elettronici  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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DRV10974 Scheda tecnica(HTML) 22 Page - Texas Instruments

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16
15
14
13
1
2
3
4
5
ADV
FR
FG
PWM
VCP
NC
GND
GND
(PPAD)
V1P8
12
GND
VCC
W
6
RMP
7
GND
11
10
V
U
100nF
10uF
1uF
7.32k
115k
8
9
PGND
CS
59k
22
DRV10974
SLVSDN2 – JANUARY 2018
www.ti.com
Product Folder Links: DRV10974
Submit Documentation Feedback
Copyright © 2018, Texas Instruments Incorporated
8.2.3 Application Curves
Figure 18. DRV10974 Operation Current Waveform
Figure 19. DRV10974 Start-Up Waveform
9 Power Supply Recommendations
The DRV10974 device is designed to operate from an input voltage supply, VCC , range between 4.4 V and 18 V.
The user must place a minimum of a 10-µF capacitor rated for VCC as close as possible to the VCC and GND
pins.
If the power supply ripple is more than 200 mV, in addition to the local decoupling capacitors, a bulk capacitance
is required and must be sized according to the application requirements.
10 Layout
10.1 Layout Guidelines
Use thick traces when routing to VCC, GND, U, V, and W pins, because high current passes through these
traces.
Place the 10-µF capacitor between VCC and GND, and as close to the VCC and GND pins as possible.
Place the 100-nF capacitor between VCP and VCC, and as close to the VCP and VCC pins as possible.
Connect GND and PGND under the thermal pad.
Keep the thermal pad connection as large as possible. It should be one piece of copper without any gaps.
10.2 Layout Example
Figure 20. Layout Example


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