Overview
The TLC5926IDWR is a 16-bit constant-current LED sink driver produced by Texas Instruments. This component is designed for LED displays and LED lighting applications, offering advanced features such as open-load, shorted-load, and overtemperature detection, along with constant-current control. The device includes a 16-bit shift register and data latches, converting serial input data into parallel output format. It provides 16 regulated-current ports that ensure uniform and constant current for driving LEDs across a wide range of forward voltage variations.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (DW) | - |
| Pins | 24 | - |
| Operating Temperature Range | -40 to 125 | °C |
| Supply Voltage | 3.3 V or 5 V | V |
| Output Current Range | 5 mA to 120 mA | mA |
| Output Current Accuracy (Channel-to-Channel) | < ±6% (Max), 10 mA to 50 mA | % |
| Output Current Accuracy (Die-to-Die) | < ±6% (Max), 10 mA to 50 mA | % |
| Maximum Clock Frequency | 30 MHz | Hz |
| Overtemperature Shutdown | 150 to 200 °C | °C |
| Restart Temperature Hysteresis | 15 °C | °C |
Key Features
- 16 constant-current output channels
- Output current adjusted by external resistor
- Constant output current invariant to load voltage change
- Open-load and shorted-load detection
- 256-step programmable global current gain
- Excellent output current accuracy
- 30-MHz maximum clock frequency
- Schmitt-Trigger input
- Thermal shutdown for overtemperature protection
Applications
The TLC5926IDWR is primarily used in LED display applications such as LED panels, signage, and various LED lighting systems. It is designed to provide great flexibility and performance in systems that require constant-current control and error detection.
Q & A
- What is the TLC5926IDWR used for?
The TLC5926IDWR is used for LED displays and LED lighting applications, providing constant-current control and error detection.
- How many output channels does the TLC5926IDWR have?
The TLC5926IDWR has 16 constant-current output channels.
- What is the range of output current for the TLC5926IDWR?
The output current range is from 5 mA to 120 mA, adjustable via an external resistor.
- What is the maximum clock frequency of the TLC5926IDWR?
The maximum clock frequency is 30 MHz.
- Does the TLC5926IDWR have overtemperature protection?
Yes, it has thermal shutdown for overtemperature protection.
- What is the operating temperature range of the TLC5926IDWR?
The operating temperature range is from -40°C to 125°C.
- How accurate is the output current of the TLC5926IDWR?
The output current accuracy is within ±6% (Max) between channels and between ICs for currents between 10 mA to 50 mA.
- Does the TLC5926IDWR support cascade operation?
Yes, it supports cascade operation with other TLC5926 or TLC5927 devices.
- What type of input does the TLC5926IDWR have?
The TLC5926IDWR has Schmitt-Trigger inputs.
- What is the package type of the TLC5926IDWR?
The package type is SOIC (DW) with 24 pins.
