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ft3356 - High Efficiency 6-Channel Charge-Pump LED Driver

Datasheet Summary

Description

The ft3356 is a low noise, high efficiency 6-channel charge-pump LED driver that uses a quad-mode load switch: pass-through (1X), fractional (1.33X/1.5X), or doubling (2X) conversion to maximize efficiency for white LED applications.

Features

  • VIN range: 2.7V to 5.5V.
  • Fully programmable current with single-wire - Eight-step current: 20mA to 50μA - Individual main-sub group control.
  • Quad-mode charge-pump: 1X, 1.33X, 1.5X, 2X.
  • High efficiency up to 92%.
  • Drives up to six LED channels.
  • Low input ripples in all modes.
  • Minimum number of external components.
  • Built-In short-circuit protection.
  • Soft-start function limiting inrush current.
  • Low shutdown current ISHDN.

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Datasheet Details

Part number ft3356
Manufacturer Fangtek
File Size 1.01 MB
Description High Efficiency 6-Channel Charge-Pump LED Driver
Datasheet download datasheet ft3356 Datasheet
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Full PDF Text Transcription

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ft3356 High Efficiency 6-Channel Charge-Pump LED Driver GENERAL DESCRIPTION The ft3356 is a low noise, high efficiency 6-channel charge-pump LED driver that uses a quad-mode load switch: pass-through (1X), fractional (1.33X/1.5X), or doubling (2X) conversion to maximize efficiency for white LED applications. The ft3356 is capable of driving 6 LED channels from a 2.7V to 5.5V input. The 6 current sinks can operate individually or in parallel for driving higher current LEDs. It requires a minimum number of external components (1μF flying capacitors and two small 1μF capacitors at VIN and VOUT), which makes the device ideal for use in battery-powered portable applications.
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