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SC658 Fiches technique(PDF) 8 Page - Semtech Corporation

No de pièce SC658
Description  Backlight Driver for 4 LEDs with SemPulseTM Interface
PDF  22 Pages
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Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC658 Fiches technique(HTML) 8 Page - Semtech Corporation

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Pin Descriptions
SC658
Pin #
Pin Name
Pin Function

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
NC
No connection
4
NC
No connection
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
C-
Negative connection to bucket capacitor 
9
C+
Positive connection to bucket capacitor 
0
C2+
Positive connection to bucket capacitor 2

OUT
Charge pump output — all LED anode pins should be connected to this pin
2
IN
Battery voltage input
3
BL
Current sink output for main backlight LED 
— leave this pin open if unused
4
BL2
Current sink output for main backlight LED 2
— leave this pin open if unused



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