TLC59731 Series

3-channel, 8-bit, PWM LED driver with Single-Wire Interface

Catalog

3-channel, 8-bit, PWM LED driver with Single-Wire Interface

Part	Topology	Package / Case	Package / Case [y]	Package / Case [x]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Output / Channel	Internal Switch(s)	Frequency	Voltage - Supply (Max) [Max]	Mounting Type	Type	Number of Outputs	Voltage - Supply (Min) [Min]	Voltage - Output	Supplier Device Package
Texas Instruments TLC59731D	Shift Register	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	50 mA		6 MHz	6 V	Surface Mount	Linear	3	3 V	21 V	8-SOIC
Texas Instruments TLC59731DR	Shift Register	8-SOIC	3.9 mm	0.154 in	85 °C	-40 °C	50 mA		6 MHz	6 V	Surface Mount	Linear	3	3 V	21 V	8-SOIC

Catalog

3-channel, 8-bit, PWM LED driver with Single-Wire Interface

Key Features

• Three Sink Current ChannelsCurrent Capability:50 mA per ChannelGrayscale (GS) Control With PWM:8-Bit (256 Steps) With Simple GammaCorrectionSingle-Wire Interface (EasySet™)Power-Supply (VCC) Voltage Range:No Internal Shunt Regulator Mode:3 V to 5.5 VInternal Shunt Regulator Mode: 3 V to 6 VOUT Terminals Maximum Voltage: Up to 21 VIntegrated Shunt RegulatorData Transfer Maximum Rate:Bits per Second (bps): 600 kbpsInternal GS Clock Oscillator: 6 MHz (Typical)Display Repeat Rate: 3.1 kHz (Typical)Output Delay Switching to Prevent Inrush CurrentUnlimited Device CascadingOperating Temperature: –40°C to 85°CThree Sink Current ChannelsCurrent Capability:50 mA per ChannelGrayscale (GS) Control With PWM:8-Bit (256 Steps) With Simple GammaCorrectionSingle-Wire Interface (EasySet™)Power-Supply (VCC) Voltage Range:No Internal Shunt Regulator Mode:3 V to 5.5 VInternal Shunt Regulator Mode: 3 V to 6 VOUT Terminals Maximum Voltage: Up to 21 VIntegrated Shunt RegulatorData Transfer Maximum Rate:Bits per Second (bps): 600 kbpsInternal GS Clock Oscillator: 6 MHz (Typical)Display Repeat Rate: 3.1 kHz (Typical)Output Delay Switching to Prevent Inrush CurrentUnlimited Device CascadingOperating Temperature: –40°C to 85°C

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 OUTnterminal in series. The TLC59731 has an internal shunt regulator that can be used for higher VCC power-supply voltage applications. 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 OUTnterminal in series. The TLC59731 has an internal shunt regulator that can be used for higher VCC power-supply voltage applications.