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IS31FL3197 - CHARGE PUMP RGBW LED DRIVER

Datasheet Summary

Description

The IS31FL3197 is a charge pump LED driver with programmable sequence operation for automated RGBW lighting effects.

It is capable of driving 4 LEDs up to 10mA (adjustable in 256 current levels and 4096 PWM levels) from a small coin size battery supply.

in charge pump structure wil

Features

  • 2.0V to 3.3V supply voltage.
  • Charge pump - 1x, 1.5x, 2x operating modes - Highly efficient across battery state of charge - 1MHz constant frequency.
  • Power saving operating - Quiescent operating current 700µA (Typ. ) - Shutdown current 1µA (Typ. ).
  • Support four LEDs - RGBW - Resistor sets maximum 10mA output current per LED - Each LED has 8-bit programmable current levels - Each LED has 12-bit programmable PWM levels.
  • LEDs operate with pre-established p.

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Datasheet Details

Part number IS31FL3197
Manufacturer Lumissil
File Size 837.58 KB
Description CHARGE PUMP RGBW LED DRIVER
Datasheet download datasheet IS31FL3197 Datasheet
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IS31FL3197 CHARGE PUMP RGBW LED DRIVER WITH PROGRAMMABLE SELF-RUNNING PATTERNS May 2022 GENERAL DESCRIPTION The IS31FL3197 is a charge pump LED driver with programmable sequence operation for automated RGBW lighting effects. It is capable of driving 4 LEDs up to 10mA (adjustable in 256 current levels and 4096 PWM levels) from a small coin size battery supply. The built−in charge pump structure will automatically toggle between 1x, 1.5x or 2x operation depending on the battery’s state of charge. This DC/DC converter operates at a high switching frequency which enables the use of small external capacitors and achieves a 90% peak efficiency. To conserve battery life, the charge pump goes into high impedance mode whenever the IS31FL3197 is shutdown.
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