Overview
The TLC5928PWPR, produced by Texas Instruments, is a 16-channel constant-current sink LED driver. This device is designed to control and drive LEDs with high precision and reliability. It features low on-time error, high-speed constant-current switching, and integrated error detection circuits for LED open detection (LOD) and pre-thermal warning (PTW). The TLC5928PWPR operates over a wide voltage range, from 3.0 V to 5.5 V, and can handle LED power-supply voltages up to 17 V. It is suitable for various applications requiring multiple LED channels with precise current control.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| VCC Supply Voltage | 3.0 | - | 5.5 | V |
| Output Current (dc) | - | - | 40 | mA |
| LED Power-Supply Voltage | - | - | 17 | V |
| Constant Output Sink Current | 2 | - | 35 | mA |
| Data Shift Clock Frequency | - | - | 35 | MHz |
| Operating Temperature Range | -40 | - | 85 | °C |
| Constant-Current Accuracy (Channel-to-Channel) | - | ±1% | - | - |
| Constant-Current Accuracy (Device-to-Device) | - | ±1% | - | - |
Key Features
- 16 channels of constant-current sink output with on/off control
- Low on-time error and high-speed constant-current switching (10 ns)
- LED open detection (LOD) and pre-thermal warning (PTW) circuits
- CMOS logic level I/O and 35 MHz data transfer rate
- Readable error information for LOD and PTW
- Operating temperature range: -40°C to +85°C
- Constant-current accuracy: ±1% (channel-to-channel and device-to-device)
Applications
- LED video displays
- Message boards
- Illumination systems
- Any application requiring multiple LED channels with precise current control
Q & A
- What is the TLC5928PWPR? The TLC5928PWPR is a 16-channel constant-current sink LED driver produced by Texas Instruments.
- What is the operating voltage range of the TLC5928PWPR? The operating voltage range is from 3.0 V to 5.5 V.
- What is the maximum LED power-supply voltage the TLC5928PWPR can handle? The TLC5928PWPR can handle LED power-supply voltages up to 17 V.
- What is the maximum output current per channel? The maximum output current per channel is 35 mA.
- Does the TLC5928PWPR have error detection features? Yes, it includes LED open detection (LOD) and pre-thermal warning (PTW) circuits.
- What is the data transfer rate of the TLC5928PWPR? The data transfer rate is up to 35 MHz.
- What is the operating temperature range of the TLC5928PWPR? The operating temperature range is from -40°C to +85°C.
- How accurate is the constant-current output of the TLC5928PWPR? The constant-current accuracy is ±1% (both channel-to-channel and device-to-device).
- What types of applications is the TLC5928PWPR suitable for? It is suitable for LED video displays, message boards, illumination systems, and any application requiring multiple LED channels with precise current control.
- How many channels does the TLC5928PWPR have? The TLC5928PWPR has 16 channels.
- Can the TLC5928PWPR be daisy-chained? Yes, multiple TLC5928PWPR devices can be daisy-chained for expanded functionality.
