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SC654 Datasheet(PDF) 8 Page - Semtech Corporation

Part # SC654
Description  Light Management Unit for 6 LEDs with SemPulseTM Interface
PDF  22 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC654 Datasheet(HTML) 8 Page - Semtech Corporation

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Pin Descriptions
SC654
Pin #
Pin Name
Pin Function
1
BL3
Current sink output for main backlight LED 3
— leave this pin open if unused
2
BL4
Current sink output for main backlight LED 4
— leave this pin open if unused
3
BL5
Current sink output for main backlight LED 5
— leave this pin open if unused
4
BL6
Current sink output for main backlight LED 6
— leave this pin open if unused
5
SPIF
SemPulse single wire interface pin — used to enable/disable the device and to configure all regis-
ters (refer to Register Map and SemPulse Interface sections)
6
GND
Ground pin
7
C2-
Negative connection to bucket capacitor 2
8
C1-
Negative connection to bucket capacitor 1
9
C1+
Positive connection to bucket capacitor 1
10
C2+
Positive connection to bucket capacitor 2
11
OUT
Charge pump output — all LED anode pins should be connected to this pin
12
IN
Battery voltage input
13
BL1
Current sink output for main backlight LED 1
— leave this pin open if unused
14
BL2
Current sink output for main backlight LED 2
— leave this pin open if unused



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