SC652

10

Pin Descriptions

Pin #

Pin Name

Pin Function

1

OUT

Charge pump output — all LED anode pins should be connected to this pin

2

IN

Battery voltage input

3

ISET

Current setting pin — connect a resistor between this pin and the IN pin to set the LED current

4

EN/PWM

Enable pin — also used as the PWM input for dimming control

5

BL5

Current sink output for main backlight LED 5 — leave this pin open if unused

6

BL4

Current sink output for main backlight LED 4 — leave this pin open if unused

7

BL3

Current sink output for main backlight LED 3 — leave this pin open if unused

8

BL2

Current sink output for main backlight LED 2 — leave this pin open if unused

9

BL1

Current sink output for main backlight LED 1 — leave this pin open if unused

10

GND

Ground pin

11

C2-

Negative connection to bucket capacitor 2

12

C1-

Negative connection to bucket capacitor 1

13

C1+

Positive connection to bucket capacitor 1

14

C2+

Positive connection to bucket capacitor 2