TLC5917

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TLC5916, TLC5917 SLVS695D – JUNE 2007 – REVISED JANUARY 2015 TLC591x 8-Channel Constant-Current LED Sink Drivers 1 Features 1 Eight Constant-Current Output Channels Output Current Adjusted Through Single External Resistor Constant Output Current Range: 3-mA to 120-mA per Channel Constant Output Current Invariant to Load Voltage Change Open Load, Short Load and Overtemperature Detection 256-Step Programmable Global Current Gain Excellent Output Current Accuracy: – Between Channels: < ±3% (Maximum) – Between ICs: < ±6% (Maximum) Fast Response of Output Current 30-MHz Clock Frequency Schmitt-Trigger Input 3.3-V or 5-V Supply Voltage Maximum LED Voltage 20-V Thermal Shutdown for Overtemperature Protection 2 Applications General LED Lighting Applications LED Display Systems LED Signage Automotive LED Lighting White Goods Gaming Machines/Entertainment 3 Description The TLC591x Constant-Current LED Sink Drivers are designed to work alone or cascaded. Since each output is independently controlled, they can be programmed to be on or off by the user. The high LED voltage (VLED) allows for the use of a single LED per output or multiple LEDs on a single string. With independently controlled outputs supplied with constant current, the LEDs can be combined in parallel to create higher currents on a single string. The constant sink current for all channels is set ...