FEATURES

0.2-mA to 40-mA (Constant-Current Sink)

Drive Capability x 12 Bits Output Count into

24-Pin HTSSOP Package

1024 Gray-Scale Display (PWM Control 1024

Steps) with Max 25-MHz Clock Frequency

3-Way Brightness Adjustment

– Plane Brightness Adjustment for 64 Steps

(40% to 100%)

– Frequency Division for 16 Steps

(6.3% to 100%)

– Dot Correction for 256 Steps (0% to 100%)

DS–Link Data Input/Output (Data Rate Max

20 Mbps) with Packet Operation

5 Error Information Types and 2 Gray–Scale

Clock Modes

3.3-V VCC and LVTTL Interface

APPLICATION

Full- or Multi-Color LED Display

DESCRIPTION

The TLC5930 is a constant-current sink driver

with an adjustable current value, and 1024 gray

scale display that uses pulse width control. The

output current is 0.2 mA to 40 mA with 12 bits of

RGBx4. The maximum current value of the

constant-current output can be set by one external

resistor.

The TLC5930 includes three kinds of brightness

adjustment functions: one adjusts the plane

brightness between devices, changing the current

values of all outputs uniformly. The second adjusts

the frequency division to controls overall panel

brightness, and the third adjusts the dot correction

per LED, changing the current values of

independent output.

The TLC5930 also includes color–tone correction

function for correcting color per dot (pixel) and

OVM function for constant-current output

terminals used for LED failure detection.

Other features include the thermal error flag

(TEF). The active wire-check (AWC) to check the

communication between the controller and the

device. The LED leakage-detect (LKD) to detect

the reverse leakage on the LED. The GCLK error

flag (GEF) and the HSYNC error flag (HEF) by

monitoring the gray-scale clock count, and the

dual source gray-scale clock (DSG) function to

switch the gray-scale clock to the external input

clock or to switch the internally-generated clock.

The TLC5930 requires three signals for standard

operation: data input and gray-scale clock. Only

three-signal line and 24-pin HTSSOP package

reduce board area and total cost.