TLC5927

• 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

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 V_F (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, R_ext, 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.