DRV201_15 Datasheet, PDF (22/29 Pages) Texas Instruments – DRV201 Voice Coil Motor Driver for Camera Auto Focus

DRV201
SLVSB25C – AUGUST 2011 – REVISED JUNE 2015
www.ti.com
Figure 24. Lens Positions With and Without Ringing
Compensation With 30-µm Step on the Lens Position
Figure 25. Lens Positions With and Without Ringing
Compensation With 30-µm Step on the Lens Position,
Zoomed In
9 Power Supply Recommendations
The DRV201 device is designed to operate from an input voltage supply, VBAT, range between 2.5 and 4.8 V.
The user must place at least a 1-uF ceramic bypass capacitor rated for a minimum of 6.3 V as close as possible
to VBAT and GND pin.
10 Layout
10.1 Layout Guidelines
The VBAT pin should be bypassed to GND using a low-ESR ceramic bypass capacitor with a recommended
value of at least 1-µF rated for a minimum of 6.3 V. Place this capacitor as close to the VBAT and GND pins as
possible with a thick trace or ground plane connection to the device GND pin.
10.2 Layout Example
1µF
Figure 26. Recommended Layout Example
22
Submit Documentation Feedback
Product Folder Links: DRV201
Copyright © 2011–2015, Texas Instruments Incorporated