
TLC5929 Series
16-ch constant current LED driver with 7-bit global brightness, power-Save, and self-diagnostics
Manufacturer: Texas Instruments
Catalog
16-ch constant current LED driver with 7-bit global brightness, power-Save, and self-diagnostics
Key Features
• 16 Constant-Current Sink Output Channels with On/Off ControlCurrent Capability:40 mA (VCC≤ 3.6 V)50 mA (VCC> 3.6 V)Global Brightness Control: 7-Bit (128 Steps)Power-Supply Voltage Range: 3.0 V to 5.5 VLED Power-Supply Voltage: Up to 10 VConstant-Current Accuracy:Channel-to-Channel = ±1% (typ), ±3% (max)Device-to-Device = ±2% (typ), ±4% (max)Data Transfer Rate: 33 MHzBLANK Pulse Width: 40 ns (min)LED Open Detection (LOD)/LED Short Detection (LSD) withInvisible Detection Mode (IDM)Output Leakage Detection (OLD) Detects 3 µA LeakPre-Thermal Warning (PTW)Thermal Shutdown (TSD)Current Reference Terminal Short Flag (ISF)Power-Save Mode with 10-µA ConsumptionUndervoltage Lockout Sets the Default Data2-ns Delayed Switching Between Each Channel Minimizes Inrush CurrentOperating Temperature:–40°C to +85°C16 Constant-Current Sink Output Channels with On/Off ControlCurrent Capability:40 mA (VCC≤ 3.6 V)50 mA (VCC> 3.6 V)Global Brightness Control: 7-Bit (128 Steps)Power-Supply Voltage Range: 3.0 V to 5.5 VLED Power-Supply Voltage: Up to 10 VConstant-Current Accuracy:Channel-to-Channel = ±1% (typ), ±3% (max)Device-to-Device = ±2% (typ), ±4% (max)Data Transfer Rate: 33 MHzBLANK Pulse Width: 40 ns (min)LED Open Detection (LOD)/LED Short Detection (LSD) withInvisible Detection Mode (IDM)Output Leakage Detection (OLD) Detects 3 µA LeakPre-Thermal Warning (PTW)Thermal Shutdown (TSD)Current Reference Terminal Short Flag (ISF)Power-Save Mode with 10-µA ConsumptionUndervoltage Lockout Sets the Default Data2-ns Delayed Switching Between Each Channel Minimizes Inrush CurrentOperating Temperature:–40°C to +85°C
Description
AI
The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).
The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.
The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.
The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).
The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.
The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.