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TLC5946RHBTG4 from TI,Texas Instruments

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TLC5946RHBTG4

Manufacturer: TI

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 32-VQFN -40 to 85

Partnumber Manufacturer Quantity Availability
TLC5946RHBTG4 TI 232 In Stock

Description and Introduction

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 32-VQFN -40 to 85 The TLC5946RHBTG4 is a 16-channel, constant-current sink LED driver manufactured by Texas Instruments (TI). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Channels:** 16  
- **Output Current:** 5–60 mA per channel (adjustable via external resistor)  
- **Supply Voltage:** 3.0 V to 5.5 V  
- **Data Transfer Rate:** Up to 30 MHz  
- **Package:** 32-pin VQFN (RHB)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Dot Correction:** 64-step (6-bit) adjustment per channel  
- **Grayscale PWM Control:** 12-bit (4096 steps)  
- **Error Detection:** Open-circuit and thermal error flag  

### **Descriptions:**
- The TLC5946RHBTG4 is designed for driving LEDs with constant current, ensuring uniform brightness.  
- It supports both dot correction (for brightness uniformity) and grayscale PWM control (for color mixing).  
- Includes a serial interface for daisy-chaining multiple devices.  

### **Features:**
- **Constant Current Output:** Eliminates the need for external current-limiting resistors.  
- **High-Speed Data Transfer:** Supports SPI-compatible interface.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Open-Load Detection:** Flags LED connection faults.  
- **Daisy-Chainable:** Multiple devices can be controlled with a single serial interface.  
- **Low-Power Standby Mode:** Reduces power consumption when inactive.  

This device is commonly used in LED displays, signage, and lighting applications.

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