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TLC5946PWPR from TI,Texas Instruments

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TLC5946PWPR

Manufacturer: TI, TI/BB

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 28-HTSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
TLC5946PWPR TI, TI/BB 35855 In Stock

Description and Introduction

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 28-HTSSOP -40 to 85 The TLC5946PWPR 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:** Adjustable (3 mA to 120 mA per channel)  
- **Supply Voltage (VCC):** 3.0 V to 5.5 V  
- **Logic Voltage (VIO):** 1.8 V to 5.5 V  
- **Dot Correction (DC):** 7-bit (128 steps)  
- **Grayscale Control (GS):** 12-bit (4096 steps)  
- **Data Transfer Rate:** Up to 30 MHz  
- **Package:** HTSSOP-28 (PWPR)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The TLC5946PWPR is designed for LED display applications, providing precise current control for each channel.  
- It features dot correction and grayscale PWM control for brightness adjustment.  
- The device supports a daisy-chain configuration for multiple ICs in large LED arrays.  

### **Features:**  
- **Constant-Current Sink Outputs:** Ensures uniform LED brightness.  
- **Dot Correction:** Compensates for LED brightness variations.  
- **12-Bit Grayscale PWM:** Enables smooth dimming control.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Open-LED Detection:** Identifies faulty LED connections.  
- **Low-Power Standby Mode:** Reduces power consumption when inactive.  

This information is based on the manufacturer's datasheet for the TLC5946PWPR.

Application Scenarios & Design Considerations

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction 28-HTSSOP -40 to 85

Alternative Part Number

  • PCA9685PW --: 16-channel 12-bit PWM LED controller with I2C interface, functionally similar to the TLC5946 and available in a TSSOP package.
  • IS31FL3236A --: 36-channel constant-current LED driver with PWM dimming, suitable as a higher-channel-count alternative for LED driving applications.
  • LP55231SQE --: 9-channel LED driver with programmable PWM and I2C control from the same manufacturer, offering similar LED driving functionality.
  • LED1642GWPTR --: 16-channel constant-current LED driver with serial interface, comparable channel count and current drive capability.
  • IS31FL3731 --: Multi-channel LED matrix driver with PWM dimming, suitable as a functional substitute for LED driving applications.

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