Overview
The TLC5941PWPR is a 16-channel, constant-current sink LED driver produced by Texas Instruments. This device is designed to control LEDs with high precision and flexibility, making it suitable for applications requiring intricate lighting effects and brightness control. The TLC5941PWPR is positioned as a high-performance solution for LED display systems, architectural lighting, and industrial automation. Its unique selling points include its ability to drive multiple LEDs independently with adjustable brightness and its integrated error detection features, ensuring reliable operation in demanding environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Channels | 16 | Constant-current sink | |
| Output Current | 5 to 120 | mA | Adjustable per channel |
| Supply Voltage | 3.0 to 5.5 | V | |
| Data Transfer Rate | 30 | MHz | Max |
| Operating Temperature | -40 to 85 | °C | |
| Package | HTSSOP-28 | PowerPAD™ | |
| Dimming Control | 12-bit PWM | 4096 steps | |
| Error Detection | Open LED, Short LED | Integrated |
Key Features
- 16-channel constant-current sink LED driver for precise brightness control.
- Adjustable output current from 5 mA to 120 mA per channel.
- 12-bit PWM dimming control for smooth brightness adjustment.
- Integrated error detection for open and short LED conditions.
- High data transfer rate of up to 30 MHz for fast updates.
- Wide operating voltage range of 3.0 V to 5.5 V for versatile applications.
Applications
The TLC5941PWPR is widely used in LED display systems, architectural lighting, and industrial automation. In LED displays, it enables precise control of individual LEDs, ensuring vibrant and dynamic visuals. In architectural lighting, it supports complex lighting designs with smooth dimming capabilities. In industrial automation, its error detection features ensure reliable operation in critical environments. Additionally, it is suitable for automotive lighting, where its robust design and wide temperature range make it ideal for challenging conditions.
Q & A
1. What is the maximum output current per channel?
The maximum output current per channel is 120 mA.
2. Can the TLC5941PWPR operate at 3.3 V?
Yes, it operates within a voltage range of 3.0 V to 5.5 V.
3. How many brightness levels does the 12-bit PWM support?
It supports 4096 brightness levels (12-bit resolution).
4. Does the TLC5941PWPR support error detection?
Yes, it includes integrated error detection for open and short LED conditions.
5. What is the maximum data transfer rate?
The maximum data transfer rate is 30 MHz.
6. Is the TLC5941PWPR suitable for automotive applications?
Yes, its wide temperature range and robust design make it suitable for automotive lighting.
7. What package does the TLC5941PWPR use?
It uses the HTSSOP-28 package with PowerPAD™ technology.
8. Can the output current be adjusted independently for each channel?
Yes, the output current is adjustable from 5 mA to 120 mA per channel.
9. What is the operating temperature range?
The operating temperature range is -40°C to 85°C.
10. Is the TLC5941PWPR suitable for RGB LED control?
Yes, it can be used to control RGB LEDs by driving each color channel independently.
