8-bit constant-current LED sink driver
Product details
Parameters
Package | Pins | Size
Features
- Eight Constant-Current Output Channels
- Output Current Adjusted Through Single External Resistor
- Constant Output Current Range: 3-mA to 120-mA per Channel
- Constant Output Current Invariant to Load Voltage Change
- Open Load, Short Load and Overtemperature Detection
- 256-Step Programmable Global Current Gain
- Excellent Output Current Accuracy:
- Between Channels: < ±3% (Maximum)
- Between ICs: < ±6% (Maximum)
- Fast Response of Output Current
- 30-MHz Clock Frequency
- Schmitt-Trigger Input
- 3.3-V or 5-V Supply Voltage
- Maximum LED Voltage 20-V
- Thermal Shutdown for Overtemperature Protection
- APPLICATIONS
- General LED Lighting Applications
- LED Display Systems
- LED Signage
- Automotive LED Lighting
- White Goods
- Gaming Machines/Entertainment
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Description
The TLC591x Constant-Current LED Sink Drivers are designed to work alone or cascaded. Since each output is independently controlled, they can be programmed to be on or off by the user. The high LED voltage (VLED) allows for the use of a single LED per output or multiple LEDs on a single string. With independently controlled outputs supplied with constant current, the LEDs can be combined in parallel to create higher currents on a single string. The constant sink current for all channels is set through a single external resistor. This allows different LED drivers in the same application to sink various currents which provides optional implementation of multi-color LEDs. An additional advantage of the independent outputs is the ability to leave unused channels floating. The flexibility of the TLC591x LED drivers is ideal for applications such as (but not limited to): 7-segment displays, scrolling single color displays, gaming machines, white goods, video billboards and video panels.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TLC591x 8-Channel Constant-Current LED Sink Drivers datasheet (Rev. D) | Jan. 09, 2015 |
White paper | Common LED Functions and LED Driver Design Considerations | Sep. 21, 2020 | |
Selection guide | Power Management Guide 2018 (Rev. R) | Jun. 25, 2018 | |
Technical article | Here's how body electronics and lighting technology are changing the driving experience | Sep. 26, 2016 | |
Technical article | LED brightness adjustment: high-frequency PWM dimming | Aug. 26, 2016 | |
Technical article | Take better selfies with innovative LED flashes | Nov. 18, 2014 | |
Technical article | Solving the automotive EMI issues in new cars with all the screens | Sep. 11, 2014 | |
Application note | One-Wire Control – Eliminating Microprocessor Control for LED Driver | Jul. 24, 2009 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
Design files
-
download TIDA-00737 BOM.pdf (227KB) -
download TIDA-00737 Assembly Files.zip (202KB) -
download TIDA-00737 PCB.pdf (2341KB) -
download TIDA-00737 CAD Files.zip (3061KB) -
download TIDA-00737 Gerber.zip (1101KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
PDIP (N) | 16 | View options |
SOIC (D) | 16 | View options |
TSSOP (PW) | 16 | View options |
Ordering & quality
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- Ongoing reliability monitoring
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Support & training
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