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SC620EVB Datasheet(PDF) 12 Page - Semtech Corporation

No. de pieza SC620EVB
Descripción Electrónicos  Octal LED Driver, General Purpose Current Sink with Serial Interface
PDF  18 Pages
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Fabricante Electrónico  SEMTECH [Semtech Corporation]
Página de inicio  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC620EVB Datasheet(HTML) 12 Page - Semtech Corporation

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SC620
12
Backlighting Three LEDs of Any Color Combination
Plus Lens Voice Coil Drive and One GPO
This example uses the SC620 to drive 3 backlight LEDs,
plus a voice coil actuator for lens auto-focus and one
open-drain digital output. Independent outputs allow
these functions to be supported simultaneously. The V
IN
supply is typically single cell Li-Ion or 5.0V. V
IN
and the
LED anode voltage may be supplied by different sources.
The operating voltage limit of (V
IN
— 1.5V) at the sink pins
must be observed to achieve the specified accuracy of the
device.
SC620
IN
2
SCL
11
SDA
10
EN
3
GND
1
GND
4
GND
9
GND
12
ILED1
5
ILED2
6
ILED3
7
ILED4
8
ILED6
14
ILED8
16
ILED5
13
VLOGIC
1μF
SCL
SDA
EN
Main Panel
LED Backlighting
Lens Focusing
VBAT = 2.7V to 5.5V
VBAT
Voice
Coil
ILED7
15
GPO
Digital Output Expander
Applications Information (continued)



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