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IS31FL3749 - LOCAL DIMMING 24x4 MATRIX LED DRIVER

Description

IS31FL3749 is a matrix LED driver with 24 high voltage (16V) constant current channels.

It supports from one to four power scan to become a 24×n (n=1~4) matrix LED driver.

Each LED can be pulse width modulated (PWM) with maximum 16-bit precision for smooth LED brightness control.

Features

  • Support 24 constant current channels, 60mA/ch.
  • Tolerate up to 20V, nominal operation voltage between 4.3V to 16V, multiple LED’s can be connected in series.
  • Built-in LDO to generate 4.8V supply for internal logic (option to float it and use external power).
  • Interface - VSB (video serial bus, 33MHz) - SPI (33MHz).
  • Reset register reset all the registers to default.
  • Support 8-bit, 16-bit, 8+4-bit dithering and 8+8bit dithering PWM mode.

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Datasheet Details

Part number IS31FL3749
Manufacturer Lumissil
File Size 865.04 KB
Description LOCAL DIMMING 24x4 MATRIX LED DRIVER
Datasheet download datasheet IS31FL3749 Datasheet
Additional preview pages of the IS31FL3749 datasheet.

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Full PDF Text Transcription

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IS31FL3749 LOCAL DIMMING 24×4 MATRIX LED DRIVER GENERAL DESCRIPTIONS IS31FL3749 is a matrix LED driver with 24 high voltage (16V) constant current channels. It supports from one to four power scan to become a 24×n (n=1~4) matrix LED driver. Each LED can be pulse width modulated (PWM) with maximum 16-bit precision for smooth LED brightness control. In addition, each LED can be controlled by an 8-bit output current control register (Dot correction, current scale, SL), which allows fine tuning the current for rich RGB color mixing, e.g., a pure white color LED application.
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