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TLC5903

Texas Instruments
Part Number TLC5903
Manufacturer Texas Instruments
Description LED DRIVER
Published Oct 1, 2019
Detailed Description TLC5903 LED DRIVER D 80 mA x 16 Bits and 120 mA x 8 Bits Drive Capability and Output Counts D 5 mA to 80 mA/10 mA to 12...
Datasheet PDF File TLC5903 PDF File

TLC5903
TLC5903

Overview
TLC5903 LED DRIVER D 80 mA x 16 Bits and 120 mA x 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) SLLS383 – 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 8 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 TLC5903 is a constant current driver that incorporates shift register, data latch, and constant current circuitry with an adjustable current value and a 256 gray scale display that uses pulse width control.
The output current can be selected at a maximum of 80 mA with 16 bits or 120 mA with 8 bits.
The current value of the constant current output is set by one external register.
After this device is mounted on a printed-circuit board (PCB), the brightness deviation between LEDs (ICs) can be adjusted by using an external data input.
The brightness control for the panel can be adjusted using the brightness adjustment circuitry.
Moreover, the device incorporates watchdog timer (WDT) circuitry, which turns the constant current output off when the scan signal is stopped during the dynamic scanning operation, and thermal shutdown (TSD) circuitry, which turns the constant current output off when the ...


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