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TLC5917

TLC5917 LED Sink Drivers IC Chip

$0.90

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TLC5917(8-Channel Constant-Current LED Sink Drivers)

Introduction 

The TLC591x-TLC5916, TLC5917 Constant-Current LED Sink Drivers are designed to work alone or cascaded. Since each output is independently controlled, the user can program them to be on or off. The high LED voltage (VLED) allows for the use of a single LED per output or multiple LEDs on a single string. With constant current supplied to independently controlled outputs, the user can combine LEDs in parallel to create higher currents on a single string.

A single external resistor sets the constant sink current for all channels. This allows different LED drivers in the same application to sink various currents which provides optional implementation of multi-color LEDs. An additional advantage of the independent outputs is the ability to leave unused channels floating. The flexibility of the TLC591x-TLC5916, TLC5917 LED drivers is ideal for applications such as (but not limited to): 7-segment displays, scrolling single color displays, gaming machines, white goods,video billboards and video panels.

TLC5917-Table

Feature

  • Eight Constant-Current Output Channels
  • Output Current Adjusted Through Single External Resistor
  • Constant Output Current Range: 3mA to 120mA 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
  • 30MHz Clock Frequency
  • Schmitt-Trigger Input
  • 3.3V or 5V Supply Voltage
  • Maximum LED Voltage 20V
  • Thermal Shutdown for Overtemperature Protection

Appearance

TLC5917 -

 

Series

TLC5917IPW

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