Overview
The TLC5941RHBR, produced by Texas Instruments, is a 16-channel LED driver integrated circuit designed for high-performance LED lighting applications. It features advanced grayscale PWM control and dot correction, making it ideal for applications requiring precise brightness control and uniformity across multiple LED channels.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 16 |
| LED Power Supply Voltage | Up to 17 V |
| Grayscale PWM Control | 12-bit (4096 steps) |
| 6-bit (64 steps) | |
| Maximum Output Current | 80 mA |
| Operating Temperature | -40°C to 85°C |
| Data Transfer Rate | 30 MHz |
| Package Type | 32-pin VQFN |
Key Features
- Adjustable 4096-step grayscale PWM brightness control and 64-step constant-current sink (dot correction)
- Serial data interface with CMOS level I/O
- Controlled in-rush current to prevent voltage drops
- LED open detection (LOD) and thermal error flag (TEF) for error monitoring
- Reference current terminal (IREF) for setting maximum current value
- Flexible serial interface compatible with microcontrollers and digital signal processors
Applications
The TLC5941RHBR is suitable for various LED lighting applications, including:
- LED signboards and display back-lighting
- High-brightness LED lighting systems
- Automotive lighting systems
- Industrial lighting and display systems
Q & A
- What is the number of channels supported by the TLC5941RHBR?
The TLC5941RHBR supports 16 LED channels. - What is the maximum LED power supply voltage for the TLC5941RHBR?
The maximum LED power supply voltage is up to 17 V. - What type of PWM control does the TLC5941RHBR offer?
The TLC5941RHBR offers 12-bit (4096 steps) grayscale PWM control. - Does the TLC5941RHBR have dot correction capability?
Yes, it features 6-bit (64 steps) dot correction. - What is the maximum output current per channel for the TLC5941RHBR?
The maximum output current per channel is 80 mA. - What is the operating temperature range for the TLC5941RHBR?
The operating temperature range is -40°C to 85°C. - How does the TLC5941RHBR handle error detection?
The TLC5941RHBR includes LED open detection (LOD) and thermal error flag (TEF) for error monitoring. - What type of package does the TLC5941RHBR come in?
The TLC5941RHBR comes in a 32-pin VQFN package. - What is the data transfer rate of the TLC5941RHBR?
The data transfer rate is up to 30 MHz. - Is the TLC5941RHBR compatible with microcontrollers and digital signal processors?
Yes, it has a flexible serial interface compatible with microcontrollers and digital signal processors.
