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LP5860 Datasheet(PDF) 13 Page - Texas Instruments

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Part # LP5860
Description  LP5860T 11 × 18 LED High-Current Matrix Driver with 8-Bit Analog and 8-Bit or 16-Bit PWM Dimming
PDF  56 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

LP5860 Datasheet(HTML) 13 Page - Texas Instruments

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8 Detailed Description
8.1 Overview
The LP5860T is an 11 × 18 LED matrix driver. The device integrates 11 switching FETs with 18 constant current
sinks. One LP5860T device can drive up to 198 LED dots or 66 RGB pixels by using time-multiplexing matrix
scheme.
The LP5860T supports both analog dimming and PWM dimming methods. For analog dimming, the current gain
of each individual LED dot can be adjusted with 256 steps through 8-bits dot correction. For PWM dimming,
the integrated 8-bits or 16-bits configurable, > 20-KHz PWM generators for each LED dot enable smooth, vivid
animation effects without audible noise. Each LED can also be mapped into a 8-bits group PWM to achieve the
group control with minimum data traffic.
The LP5860T device implements full addressable SRAM. The device supports entire SRAM data refresh
and partial SRAM data update on demand to minimize the data traffic. The LP5860T implements the ghost
cancellation circuit to eliminate both upside and downside ghosting. The LP5860T also uses low brightness
compensation technology to support high density LED pixels. Both 1-MHz (maximum) I2C and 12-MHz
(maximum) SPI interfaces are available in the LP5860T.
8.2 Functional Block Diagram
Bandgap
Pre-charge
GND
VCC
SCL_
SCLK
SDA_
MOSI
VCAP
SW10
VLED
CS17
CS0
SW0
LED Open Detec on
LED Short Detec on
Digital Core
Current
sink
Drivers
Global 3-Bit
Maximum Current
(MC)
3 Groups of 7-Bit
Color Current
(CC)
8-bit/16-bit
PWM
Control
TSD
UVLO
Internal
LDO
Digital
Interface
VSYNC
Scan
Line
Drivers
Pre-discharge
Frame
Control
SRAM
ESD
VIO_EN
Scan Line
Control
ADDR0_
MISO
IFS
ADDR1_
SS
AGND
Individual 8-Bit
Dot Correc on
(DC)
32MHz
Oscillator
www.ti.com
LP5860T
SNVSCE1 – MAY 2023
Copyright © 2023 Texas Instruments Incorporated
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Product Folder Links: LP5860T



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