TLC59731 3-Channel, 8-Bit, PWM LED Driver with Single-Wire Interface | TI.com

TLC59731
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3-Channel, 8-Bit, PWM LED Driver with Single-Wire Interface

 

Description

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.

Features

  • Three Sink Current Channels
  • Current Capability:
    • 50 mA per Channel
  • Grayscale (GS) Control With PWM:
    • 8-Bit (256 Steps) With Simple Gamma
      Correction
  • 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

Parametrics

Compare all products in RGB & white LED drivers Email Download to Excel
Part number Order Channels (#) LED current per channel (mA) LED configuration Program memory Programmable ramp control Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Iq (Typ) (mA) Features Operating temperature range (C) Package Group Package size: mm2:W x L (PKG)
TLC59731 Order now 3     50     Series
Single    
No     No     3     5.5     -0.3     21     0.15     5         -40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TLC5973 Order now 3     50     Series
Single    
No     No     3     5.5     -0.3     21     0.15     5     Internal GS Clock
One Wire Interface
Shunt Regulator    
-40 to 125     SOIC | 8     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)