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CAT3636 - LED Driver

Description

drive up to six LEDs programmable by a one wire digital interface.

The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors.

Features

  • High Efficiency 1.33x Charge Pump.
  • Charge Pump: 1x, 1.33x, 1.5x, 2x.
  • Drives up to 6 LEDs at 32 mA Each.
  • 1.
  • Wire EZDim LED Current Programming.
  • Power Efficiency up to 92%.
  • Low Noise Input Ripple in All Modes.
  • “Zero” Current Shutdown Mode.
  • Soft Start and Current Limiting.
  • Short Circuit Protection.
  • Thermal Shutdown Protection.
  • Tiny 3 mm x 3 mm, 16.
  • lead TQFN Package.
  • These Devi.

📥 Download Datasheet

Datasheet Details

Part number CAT3636
Manufacturer onsemi
File Size 324.22 KB
Description LED Driver
Datasheet download datasheet CAT3636 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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CAT3636 LED Driver, 6-Channel Description The CAT3636 is a high efficiency fractional charge pump that can drive up to six LEDs programmable by a one wire digital interface. The inclusion of a 1.33x fractional charge pump mode increases device efficiency by up to 10% over traditional 1.5x charge pumps with no added external capacitors. Low noise input ripple is achieved by operating at a constant switching frequency which allows the use of small external ceramic capacitors. The multi−fractional charge pump supports a wide range of input voltages from 2.5 V to 5.5 V. The EN/SET logic input functions as a chip enable and a “1−wire” addressable interface for control and current setting of all LEDs. Three groups of two LEDs can be configured with independent LED currents between 0.
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