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SC668 Datasheet(PDF) 11 Page - Semtech Corporation

Part # SC668
Description  8 LED Light Management Unit Automatic Dropout Prevention , Ambient Light Sense Input, PWM Dimming, and 4 LDOs
PDF  46 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC668 Datasheet(HTML) 11 Page - Semtech Corporation

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SC668
11
Pin Descriptions
Pin #
Pin Name
Pin Function
1
LDO1
LDO1 output
2
VIN
Battery voltage input
3
GND
Ground pin
4
BL8
Current sink output for backlight LED 8 — leave this pin open if unused
5
BL7
Current sink output for backlight LED 7 — leave this pin open if unused
6
BL6
Current sink output for backlight LED 6 — leave this pin open if unused
7
BL5
Current sink output for backlight LED 5 — leave this pin open if unused
8
BL4
Current sink output for backlight LED 4 — leave this pin open if unused
9
BL3
Current sink output for backlight LED 3 — leave this pin open if unused
10
BL2
Current sink output for backlight LED 2 — leave this pin open if unused
11
BL1
Current sink output for backlight LED 1 — leave this pin open if unused
12
ADI
ADC input
13
SCL
I2C clock input
14
SDA
I2C data — bi-directional line used for read and write operations for all internal registers (refer to
Register Map and I2C Interface sections)
15
PWM
Backlight PWM control signal input
16
EN
Chip enable — active high
17
BYP
Bypass pin for LDO reference — connect a 22nF ceramic capacitor to GND
18
LDO4
LDO4 output
19
LDO3
LDO3 output
20
LDO2
LDO2 output
T
THERMAL PAD
Thermal pad for heatsinking purposes — connect to ground plane using multiple vias — not con-
nected internally



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