Product details


Channels (#) 3 LED current per channel (mA) 50 LED configuration Series, Single Program memory No Programmable ramp control No Vin (Min) (V) 3 Vin (Max) (V) 5.5 Iout (Max) (A) 0.15 Iq (Typ) (mA) 5 Features Serial interface Operating temperature range (C) -40 to 125 open-in-new Find other RGB & white LED drivers

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other RGB & white LED drivers


  • Three Sink Current Channels
  • Current Capability:
    • 50 mA per Channel
  • Grayscale (GS) Control With PWM:
    • 8-Bit (256 Steps) With Simple Gamma
  • Single-Wire Interface (EasySet™)
  • Power-Supply (VCC) Voltage Range:
    • No Internal Shunt Regulator Mode:
      3 V to 5.5 V
    • Internal Shunt Regulator Mode: 3 V to 6 V
  • OUT Terminals Maximum Voltage: Up to 21 V
  • Integrated Shunt Regulator
  • Data Transfer Maximum Rate:
    • Bits per Second (bps): 600 kbps
  • Internal GS Clock Oscillator: 6 MHz (Typical)
  • Display Repeat Rate: 3.1 kHz (Typical)
  • Output Delay Switching to Prevent Inrush Current
  • Unlimited Device Cascading
  • Operating Temperature: –40°C to 85°C
open-in-new Find other RGB & white LED drivers


The TLC59731 device is an easy-to-use, 3-channel, 50-mA sink current LED driver. The single-wire, 600-kbps serial interface (EasySet) provides a solution for minimizing wiring cost. The LED driver provides 8-bit pulse width modulation (PWM) resolution and a simple gamma correction feature. The display repeat rate is achieved at 3.1 kHz (typical) with an integrated 6-MHz grayscale (GS) clock oscillator. The driver also provides unlimited cascading capability.

Output sink current can be set by each external resistor connected to the OUTn terminal in series. The TLC59731 has an internal shunt regulator that can be used for higher VCC power-supply voltage applications.

open-in-new Find other RGB & white LED drivers

Technical documentation

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Type Title Date
* Datasheet TLC59731 3-Channel, 8-Bit, PWM LED Driver With Single-Wire Interface (EasySet) datasheet (Rev. C) Oct. 10, 2016
Application notes How to Select a RGB LED Driver Aug. 08, 2019
Technical articles Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical articles LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical articles Take better selfies with innovative LED flashes Nov. 18, 2014
Technical articles Solving the automotive EMI issues in new cars with all the screens Sep. 10, 2014

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