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IS31FL3237 - 36-CHANNEL LED DRIVER

Datasheet Summary

Description

The IS31FL3237 is an LED driver with 36 constant current channels.

Each channel can be pulse width modulated (PWM) by 16 bits for smooth LED brightness control.

In addition, each channel has an 8-bit output current control register which allows fine tuning the current for rich RGB color mixing, e.g.

Features

  • 2.7V to 5.5V VCC supply.
  • Pin to pin with IS31FL3236/IS31FL3236A (QFN-44, 5mm×5mm).
  • 1MHz I2C interface, automatic address increment function with readout function.
  • Four selectable I2C addresses.
  • Accurate color rendition - Selectable 8-bit/10-bit/12-bit/16-bit PWM - 8-bit dot correction - 8-bit global current adjust.
  • Open/Short detect function.
  • 62kHz PWM frequency (8-bit PWM).
  • Temperature detect function.
  • EMI Reduction Technology - Spread spectrum - Se.

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Datasheet preview – IS31FL3237

Datasheet Details

Part number IS31FL3237
Manufacturer Lumissil
File Size 527.29 KB
Description 36-CHANNEL LED DRIVER
Datasheet download datasheet IS31FL3237 Datasheet
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IS31FL3237 36-CHANNEL LED DRIVER WITH 16-BIT PWM March 2022 GENERAL DESCRIPTION The IS31FL3237 is an LED driver with 36 constant current channels. Each channel can be pulse width modulated (PWM) by 16 bits for smooth LED brightness control. In addition, each channel has an 8-bit output current control register which allows fine tuning the current for rich RGB color mixing, e.g., a pure white color LED application. The maximum output current of each channel is 38mA, which can be adjusted by one 8-bit global control register. Proprietary programmable technology is used to minimize audible noise caused by MLCC decoupling capacitors. All registers can be programmed via a high speed I2C (1MHz).
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