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IS31FL3224 - 24-CHANNEL LED DRIVER

General Description

IS31FL3224 is an LED driver with 24 high voltage (16V) constant current channels.

Each channel can be pulse width modulated (PWM) with 7-bit/8-bit precision for smooth LED brightness control.

Key Features

  • VCC= 3.0V to 5.5V.
  • Support 24 constant current channels, tolerate up to 18V, nominal operation voltage up to 16V.
  • Constant-current output range: 40mA.
  • Current output range (open drain (OD) mode): 100mA× 24 channels.
  • Interface (MODE pins) - DSB (Daisy Chained Serial Bus, 2MHz) - HSB (High Speed Series Bus: 10MHz) - SPI (12MHz) - I2C (1MHz).
  • For DSB and HSB - Built-in PWM generator: 7-bit/ch - 7-bit × 3 global current adjustment.
  • For.

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Datasheet Details

Part number IS31FL3224
Manufacturer Lumissil
File Size 766.74 KB
Description 24-CHANNEL LED DRIVER
Datasheet download datasheet IS31FL3224 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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IS31FL3224 24 CHANNEL LED DRIVER GENERAL DESCRIPTION IS31FL3224 is an LED driver with 24 high voltage (16V) constant current channels. Each channel can be pulse width modulated (PWM) with 7-bit/8-bit precision for smooth LED brightness control. The maximum output current of each channel is designed to be 40mA, which can be adjusted by three 7-bit/8-bit global control registers group (one group for R for CS 3×n, one group for G for channels 3×n+1, and one group for B for channels 3×n+2, n=0~7, for example: one group for R is CS0, CS3, CS6 … CS21. one group for G is CS1, CS4, CS7 … CS22 and one group for B is CS2, CS5, CS8 … CS23). Proprietary algorithms are used in IS31FL3224 to minimize power bus noise caused by passive components on the power bus such as MLCC decoupling capacitor.