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
V_CC = 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 I_REF 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
	White paper	Common LED Functions and LED Driver Design Considerations	Sep. 21, 2020
	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
	Application note	Build High-Density, High Refresh Rate, Multiplexing Panel with the TLC59581	Jan. 06, 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

Design & development

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Design tools & simulation

SIMULATION MODEL Download

TLC59581 IBIS Model

SLVMCS6.ZIP (57 KB) - IBIS Model

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PSpice® for TI design and simulation tool

PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)

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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 (...)

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