LED DRIVER
TLC5902 LED DRIVER
D 80 mA × 16 Bits and 120 mA × 8 Bits
Drive Capability and Output Counts
D 5 mA to 80 mA/10 mA to 12...
Description
TLC5902 LED DRIVER
D 80 mA × 16 Bits and 120 mA × 8 Bits
Drive Capability and Output Counts
D 5 mA to 80 mA/10 mA to 120 mA Constant
Current Output Range
D Constant Currency Accuracy of ±4%
(Maximum Error Between Bits)
D Constant Current Output Terminals
– 0.4 V (Output Current 0 to 40 mA)
– 0.7 V (Output Current 40 to 80 mA)
D 256 Gray Scale Display With Pulse Width
Control 256 Steps
D Brightness Adjustment
– Output Current Adjustment for 32 Steps
(Adjustment for Brightness Deviation
Between LEDs)
– 8 Steps Brightness Control by 8 Times
Speed Gray Scale Control Clock
(Brightness Adjustment for Panel)
SLLS382 – DECEMBER 1999
D Protection
– WDT Function
– TSD Function
D Clock Synchronized 8-Bit Parallel Input D Anode Common LED Type Applied D CMOS Input Signal Level
(Schmitt-Triggered Input for All Input
Terminals)
D 4.5 V to 5.5 V Power Supply Voltage D 15 V Maximum Output Voltage D 15 MHz Maximum Data Transfer Rate D 4 MHz Maximum Gray Scale Clock
Frequency
D –20°C to 85°C Operating Free-Air
Temperature Range
D 100-Pin HTQFP Package
(PD = 4.7 W, TA = 25°C)
description
The TLC5902 is a constant current driver that incorporates shift register, data latch, and constant current circuitry with a current value adjustable and 256 gray-scale display that uses pulse width control. The output current can be selected as maximum 80 mA with 16 bits or 120 mA with 8 bits. The current value of the constant current output is set by one external resister. After this device is mounted on ...
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