1 Features

1. 16 Constant-Current Output Channels

. Output Current Adjusted By External Resistor

. Constant Output Current Range: 5 mA to 120 mA

. Constant Output Current Invariant to Load Voltage

Change

. Open-Load and Shorted-Load Detection

. 256-Step Programmable Global Current Gain

. Excellent Output Current Accuracy:

. Between Channels: < ±6% (Max),

10 mA to 50 mA

. Between ICs: < ±6% (Max), 10 mA to 50 mA

. 30-MHz Maximum Clock Frequency

. Schmitt-Trigger Input

. 3.3-V or 5-V Supply Voltage

. Thermal Shutdown for Overtemperature

Protection

2 Applications

• General LED Lighting Applications

• LED Display Systems

• LED Signage

• Automotive LED Lighting

• White Goods

3 Description

The TLC592x is designed for LED displays and LED

lighting applications with open-load, shorted-load, and over temperature detection, and constant-current

control. The TLC592x contains a 16-bit shift register

and data latches, which convert serial input data into

parallel output format. At the TLC592x output stage,

16 regulated-current ports provide uniform and constant current for driving LEDs within a wide range

of VF (forward voltage) variations. Used in systems

designed for LED display applications (for example,

LED panels), TLC592x provides great flexibility and

device performance. Users can adjust the output current from 5 mA to 120 mA through an external

resistor, Rext, which gives flexibility in controlling the

light intensity of LEDs. The TLC592x is designed for

up to 17 V at the output port. The high clock frequency, 30 MHz, also satisfies the system

requirements of high-volume data transmission.