SC656

0

Pin Descriptions

Pin #

Pin Name

Pin Function



ENS

Enable pin for sub display LED bank — also used as the PWM dimming control input for this bank

2

IN

Battery voltage input

3

ISETM

Current setting pin — connect a resistor between ISETM and IN to set the main bank LED

current.

4

ISETS

Current setting pin — connect a resistor between ISETS and IN to set the sub bank LED

current.

5

BL

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

6

BL2

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

7

BL3

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

8

BL4

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

9

BL5

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

0

BL6

Current sink output for main backlight LED 6 — leave this pin open if unused



BL7

Current sink output for main backlight LED 7 — leave this pin open if unused

2

BANK 

Logic input that, along with BANK 2, controls the configuration of the main and sub bank functions. See

application information section for details.

3

BANK 2

Logic input that, along with BANK , controls the configuration of the main and sub bank functions. See

application information section for details.

4

GND

Ground pin

5

C2-

Negative connection to bucket capacitor 2

6

C-

Negative connection to bucket capacitor 

7

C+

Positive connection to bucket capacitor 

8

C2+

Positive connection to bucket capacitor 2

9

OUT

Charge pump output — all LED anode pins are connected to this pin.

20

ENM

Enable pin for the main display LED bank — also used as the PWM dimming control input for this bank