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TLC5940 from TEXASINSTRUM

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TLC5940

Manufacturer: TEXASINSTRUM

4096 Step Grayscale LED Driver w/Dot-Correction

Partnumber Manufacturer Quantity Availability
TLC5940 TEXASINSTRUM 50 In Stock

Description and Introduction

4096 Step Grayscale LED Driver w/Dot-Correction The TLC5940 is a 16-channel, constant-current sink LED driver manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Channels:** 16  
- **Output Current:** 5–120 mA per channel (adjustable via external resistor)  
- **Supply Voltage (VCC):** 3.0 V to 5.5 V  
- **Logic Input Voltage:** 3.0 V to 5.5 V  
- **Dot Correction (DC):** 64-step (6-bit) adjustable brightness control  
- **Grayscale (GS) PWM Control:** 4096-step (12-bit) brightness control  
- **Data Transfer Rate (Clock Frequency):** Up to 30 MHz  
- **Package Options:** HTSSOP (28-pin), TSSOP (28-pin)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The TLC5940 is designed for LED driving applications requiring high-resolution brightness control.  
- It includes both dot correction (for current adjustment) and grayscale PWM (for brightness modulation).  
- The device supports daisy-chaining for driving multiple LEDs in large displays or lighting systems.  
- It features thermal shutdown and open-LED detection for fault protection.  

### **Features:**  
- **Constant-Current Sink Outputs:** Ensures uniform LED brightness.  
- **High-Resolution PWM:** 12-bit grayscale control (4096 levels).  
- **Dot Correction:** 6-bit (64-step) current adjustment per channel.  
- **Serial Interface:** Supports daisy-chaining for cascading multiple devices.  
- **Error Detection:** Open-LED detection and thermal shutdown protection.  
- **Wide Voltage Range:** Compatible with 3.3 V and 5 V systems.  

This information is strictly based on the manufacturer's datasheet and technical documentation.

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