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TLC59581

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48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and support 32-multiplexing

Data sheet
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48-channel, 16-bit ESPWM LED driver with pre-charge FET, LOD Caterpillar and support 32-multiplexing

TLC59581

ACTIVE
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Product details

Parameters

Features 48CH LED Driver, Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Pre-Charge FET Analog dimming steps 512 Data transfer rate (Typ) (MHz) 25 Ch to ch accuracy (Typ) (+/- %) 1 Rating Catalog Operating temperature range (C) -40 to 85 open-in-new Find other Signage LED display drivers

Package | Pins | Size

VQFN (RTQ) 56 64 mm² 8 x 8 open-in-new Find other Signage LED display drivers

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
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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.

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Technical documentation

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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
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 notes 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

SIMULATION MODELS Download
SLVMCS6.ZIP (57 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
64x64 Full Color (R/G/B) LED Matrix with High Multiplexing Reference Design
TIDA-00161 — This reference design is a complete 64 pixel x 64 pixel Red/Green/Blue LED panel with TLC5958 driver IC.
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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
QFN (RTQ) 56 View options

Ordering & quality

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Training series

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Videos

Dimming Methods: PWM Dimming

In this short on-demand training video, learn the basics of PWM dimming based on three different dimming methodologies, main FET, Series FET and Shunt FET dimmi

Posted: 03-Jan-2018
Duration: 06:43

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