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IS31BL3229 - 8-LED BACKLIGHT DRIVER

General Description

The IS31BL3229 with a smart charge-pump circuit is a parallel white-LED driver with eight matched 20mA current outputs.

It can supply a total output current of 160mA over an input voltage range of 2.7V to 5.5V.

Key Features

  • Supply voltage: 2.7V ~ 5.5V 1X, 1.5X operating mode fade in and fade out mode Output current can be 25mA 32 current level and PWM intensity control Low input current ripple, low EMI 90% high efficiency No inductors, low noise operation Over voltage protection on output Built-in thermal protection Automatic soft start Built-in thermal protection QFN-20 (3mm × 3mm ) package.

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Other Datasheets by ISSI (now Infineon)

Part Number Description
IS31BL3212 FOUR CHANNEL CONSTANT CURRENT LED DRIVER
IS31BL3230 8 CHANNELS CONSTANT CURRENT LED DRIVER
IS31BL3231 FLASH LED DRIVER
IS31BL3232 FLASH LED DRIVER
IS31BL3233A 1.5A FLASH/TORCH LED DRIVER

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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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IS31BL3229 8-LED BACKLIGHT DRIVER October 2012 GENERAL DESCRIPTION The IS31BL3229 with a smart charge-pump circuit is a parallel white-LED driver with eight matched 20mA current outputs. It can supply a total output current of 160mA over an input voltage range of 2.7V to 5.5V. IS31BL3229 typically draws less than 1µA when placed in shutdown, and 0.7mA when operating in the no-load and 1X mode condition. If any of the outputs are not used, leave the pin(s) unconnected. Brightness can be controlled by simple-series-control techniques and external PWM signal. IS31BL3229 is available in QFN-20 (3mm × 3mm). It operates from 2.7V to 5.5V over the temperature range of -40°C to +85°C. FEATURES              Supply voltage: 2.7V ~ 5.5V 1X, 1.