48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and support 32-multiplexing
Product details
Parameters
Package | Pins | Size
Features
- 48 Constant-Current Sink Output Channels
- Sink Current Capability with Max BC/CC data:
- 25 mA at 5 VCC
- 20 mA at 3.3 VCC
- Global Brightness Control (BC): 3-Bit (8-Step)
- Color Brightness Control (CC) for Each Color
Group: 9-Bit (512-Step), Three Groups - LED Power Supply Voltage Up To 10 V
- VCC = 3.0 V to 5.5 V
- Constant Current Accuracy
- Channel-to-Channel = ±1%(Typ), ±3%(Max)
- Device-to-Device = ±1%(Typ), ±2%(Max)
- Data Transfer Rate: 25 MHz
- Gray Scale Clock: 33 MHz
- Pre-Charge FET to Avoid Ghosting Phenomenon
- Enhanced Circuit for Caterpillar Cancelling
- Low-Grayscale Enhancement
- LED Open Detection (LOD)
- Thermal Shut Down (TSD)
- Operating Temperature: –40°C to 85°C
Description
The TLC59581/82are 48-channel constant-current sink drivers. Each channel has an individually-adjustable, 65536-step, pulse width modulation (PWM) grayscale (GS) brightness control.
The TLC59581 can support 32-multiplexing while TLC59582 can support 16-multiplexing.
The output channels are divided into three groups. Each group has a 512-step color brightness control (CC). CC adjusts brightness control between colors. The maximum current value of all 48 channels can be set by 8-step global brightness control (BC). BC adjusts brightness deviation between LED drivers. GS, CC and BC data are accessible through a serial interface port.
See application note Build High Density, High Refresh Rate, Multiplexing LED Panel with TLC59581, SLVA744.
The TLC59581/82 device has one error flag: the LED open detection (LOD), which can be read through a serial interface port. To resolve this caterpillar issue caused by an open LED, the TLC59581/82 device has an enhanced circuit for caterpillar canceling, thermal shut down (TSD) and IREF resistor short protection (ISP), which ensures a higher system reliability. The TLC59581/82 device also has a power-save mode that sets the total current consumption to 0.8 mA (typical) when all outputs are off. The TLC59581/82 device is a good solution to improve display performance of a multiplexing panel for low-grayscale patterns.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | TLC59581/82 48-Channel, 16-Bit ES-PWM LED Driver with Pre-Charge FET, LOD Caterpillar Cancelling and Display Data Memory datasheet (Rev. A) | Nov. 10, 2015 |
White paper | Common LED Functions and LED Driver Design Considerations | Sep. 21, 2020 | |
Technical articles | Here's how body electronics and lighting technology are changing the driving experience | Sep. 26, 2016 | |
Technical articles | LED brightness adjustment: high-frequency PWM dimming | Aug. 26, 2016 | |
Application note | Build High-Density, High Refresh Rate, Multiplexing Panel with the TLC59581 | Jan. 06, 2016 | |
Technical articles | Take better selfies with innovative LED flashes | Nov. 18, 2014 | |
Technical articles | Solving the automotive EMI issues in new cars with all the screens | Sep. 10, 2014 |
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
Due to its higher integration and high time multiplexing support, this design drives total 12,288 individual LED lamps (= 64 x 64 x 3color) by only 8pcs of TLC5958 IC. Still this LED panel (...)
Design files
-
download TIDA-00161 BOM.pdf (79KB) -
download TIDA-00161 Gerber.zip (2167KB)
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
QFN (RTQ) | 56 | View options |
Ordering & quality
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- Ongoing reliability monitoring
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