Overview
The TLC5922DAPR is a 16-channel constant-current sink LED driver produced by Texas Instruments. This device is designed to drive LEDs with high precision and flexibility, making it suitable for a variety of lighting and display applications. Each channel of the TLC5922DAPR has an On/Off state and a 128-step adjustable constant-current sink, known as dot correction, which helps in adjusting the brightness variations between LEDs and other LED drivers. The device operates via a serial data interface that is SPI compatible, allowing for efficient and fast data transfer at rates up to 30 MHz.
Key Specifications
| Specification | Value |
|---|---|
| Package | 32-pin HTSSOP (PowerPAD) |
| Number of Channels | 16 |
| Drive Capability | 0 to 80 mA (Constant-Current Sink) |
| Constant Current Accuracy | ±1% (typical) |
| Data Transfer Rate | 30 MHz |
| Supply Voltage (VCC) | 3.0 V to 5.5 V |
| LED Supply Voltage | Up to 17 V |
| Operating Temperature Range | -20°C to 85°C |
| Dot Correction | 7 bit (128 Steps), Individually Adjustable For Each Channel |
| Input/Output Level | CMOS Level |
| Switching Output Time | Tr / Tf = 10ns (typical) |
Key Features
- 16 channels with On/Off state and 128-step adjustable constant-current sink (dot correction)
- Serial data interface, SPI compatible
- Fast switching output: Tr / Tf = 10ns (typical)
- CMOS level input/output
- 30 MHz data transfer rate
- VCC = 3.0 V to 5.5 V
- LED supply voltage up to 17 V
- Operating temperature range: -20°C to 85°C
- 32-pin HTSSOP (PowerPAD) package
- Controlled in-rush current
- Graduated delay circuits between outputs to prevent large inrush currents
Applications
- Monocolor, Multicolor, Fullcolor LED Display
- Monocolor, Multicolor LED Signboard
- Display Backlighting
- Multicolor LED Lighting Applications
Q & A
- What is the TLC5922DAPR? The TLC5922DAPR is a 16-channel constant-current sink LED driver produced by Texas Instruments.
- How many channels does the TLC5922DAPR have? The TLC5922DAPR has 16 channels.
- What is the drive capability of each channel? Each channel can drive up to 80 mA (constant-current sink).
- What is the constant current accuracy of the TLC5922DAPR? The constant current accuracy is ±1% (typical).
- What is the data transfer rate of the TLC5922DAPR? The data transfer rate is up to 30 MHz.
- What is the supply voltage range for the TLC5922DAPR? The supply voltage range is 3.0 V to 5.5 V.
- What is the maximum LED supply voltage for the TLC5922DAPR? The maximum LED supply voltage is up to 17 V.
- What is the operating temperature range of the TLC5922DAPR? The operating temperature range is -20°C to 85°C.
- What package type does the TLC5922DAPR use? The TLC5922DAPR uses a 32-pin HTSSOP (PowerPAD) package.
- What are some common applications of the TLC5922DAPR? Common applications include monocolor, multicolor, and fullcolor LED displays, LED signboards, display backlighting, and multicolor LED lighting applications.
