24-Output PWM LED Drivers

for Message Boards

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5

Pin Description

PIN

NAME

FUNCTION

1

MUX0

Multiplex 0 Active-Low, Open-Drain Output. Use MUX0 to drive a pnp transistor.

2

CLKI+

PWM and Serial-Interface Noninverting Clock LVDS Input

3

CLKI-

PWM and Serial-Interface Inverting Clock LVDS Input

4

DIN+

Serial-Interface Noninverting Data LVDS Input

5

DIN-

Serial-Interface Inverting Data LVDS Input

6

LOADI

Serial-Interface Load CMOS Input

7

I.C.

Internally Connected. Connect to GND.

8–15

R0–R7

Red LED Drive Outputs. R0 to R7 are open-drain, constant-current sinks.

16–23

G0–G7

Green LED Drive Outputs. G0–G7 are open-drain, constant-current sinks.

24, 40

25

LOADO

Serial-Interface Load CMOS Output

26

DOUT-

Serial-Interface Inverting Data LVDS Output

27

DOUT+

Serial-Interface Noninverting Data LVDS Output

28

CLKO-

PWM and Serial-Interface Inverting Clock LVDS Output

29

CLKO+

PWM and Serial-Interface Noninverting Clock LVDS Output

30

MUX1

Multiplex 1 Active-Low, Open-Drain Output. Use MUX1 to drive a pnp transistor.

31

AGND

Analog Ground. Connect to GND.

32–39

B7–B0

Blue LED Drive Outputs. B0 to B7 are open-drain, constant-current sinks.

EP

GND

Power Ground. Exposed pad on package underside must be connected to GND.