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TLC5921 from TEXAS

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TLC5921

Manufacturer: TEXAS

LED Driver W/Shift Register, Data Latch & Current-Sink Constant Current Circuitry

Partnumber Manufacturer Quantity Availability
TLC5921 TEXAS 30 In Stock

Description and Introduction

LED Driver W/Shift Register, Data Latch & Current-Sink Constant Current Circuitry The TLC5921 is a 16-channel, constant-current sink LED driver manufactured by Texas Instruments (TEXAS). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Channels:** 16  
- **Output Current:** Adjustable (up to 120 mA per channel)  
- **Supply Voltage (VCC):** 3 V to 5.5 V  
- **Logic Input Voltage:** 3 V to 5.5 V  
- **Data Transfer Rate:** Up to 30 MHz  
- **Constant Current Accuracy:** ±6% (channel-to-channel)  
- **Power Dissipation:** 1.2 W (max)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** HTSSOP-24, TSSOP-24  

### **Descriptions:**
- The TLC5921 is designed for driving LEDs with constant current, ensuring uniform brightness.  
- It features a serial-in, parallel-out shift register with latched outputs.  
- Each channel has an individually adjustable current sink via an external resistor.  
- The device supports daisy-chaining for cascading multiple drivers.  

### **Features:**
- **16 Constant-Current Sink Outputs** (individually programmable).  
- **30 MHz High-Speed Data Transfer** for fast LED control.  
- **Low Output Current Deviation** (±6% max between channels).  
- **Thermal Shutdown Protection** to prevent overheating.  
- **Open-Circuit Detection** for fault diagnostics.  
- **Serial Data Interface** compatible with 3.3 V and 5 V logic.  
- **Cascadable Design** for expanding LED arrays.  

This information is sourced from Texas Instruments' official datasheet for the TLC5921.

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