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TLC5940PWPG4 from TI,Texas Instruments

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TLC5940PWPG4

Manufacturer: TI

16-Channel LED Driver w/EEprom DOT Correction & Grayscale PWM Control 28-HTSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
TLC5940PWPG4 TI 25 In Stock

Description and Introduction

16-Channel LED Driver w/EEprom DOT Correction & Grayscale PWM Control 28-HTSSOP -40 to 85 The TLC5940PWPG4 is a 16-channel, constant-current sink LED driver manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **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 Voltage (VLOGIC):** 3.0 V to 5.5 V  
- **Dot Correction:** 64 steps (6-bit) per channel  
- **Grayscale PWM Control:** 4096 steps (12-bit)  
- **Data Transfer Rate:** Up to 30 MHz  
- **Package:** HTSSOP-28 (PowerPAD™)  
- **Operating Temperature:** -40°C to +85°C  

### **Descriptions:**  
- The TLC5940PWPG4 is designed for LED driving applications requiring high precision and brightness control.  
- It features individual 12-bit PWM grayscale control and 6-bit dot correction for brightness uniformity.  
- Supports daisy-chaining for multiple devices with a single data line.  

### **Features:**  
- **Constant-Current Sink Outputs:** Ensures uniform LED brightness.  
- **Dot Correction:** Compensates for LED forward voltage variations.  
- **PWM Grayscale Control:** 12-bit resolution for smooth dimming.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Serial Interface:** Compatible with SPI and other microcontrollers.  
- **Open-LED Detection:** Identifies faulty or disconnected LEDs.  

This device is commonly used in LED displays, signage, and lighting applications requiring precise current control.

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