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VS4101 - White LED Step-Up Converter

Datasheet Summary

Description

The VS4101 is a step-up DC/DC converter designed for driving up to 8 white LEDs in series from a single cell Lithium Ion battery with constant current.

Features

  • Driver Up to 5 series White LEDs from 2.5V.
  • Driver Up to 8 series White LEDs from 3.6V.
  • Up to 87% Efficiency.
  • Over 1.2MHz Fixed Switching Frequency.
  • Low 104mV Feedback Voltage.
  • Open Load Shutdown.
  • Soft-Start/PWM Dimming.
  • Internal Current Limit.
  • SOT23-6 and QFN8 Packages.

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Datasheet preview – VS4101

Datasheet Details

Part number VS4101
Manufacturer VSS
File Size 494.87 KB
Description White LED Step-Up Converter
Datasheet download datasheet VS4101 Datasheet
Additional preview pages of the VS4101 datasheet.

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    1 VS4101 White LED Step-Up Converter General Description The VS4101 is a step-up DC/DC converter designed for driving up to 8 white LEDs in series from a single cell Lithium Ion battery with constant current. Because it directly regulates output current, the VS4101 is ideal for driving light emitting diodes (LEDs) whose light intensity is proportional to the current passing through them, not the voltage across their terminals. A single external resistor sets LED current between 5mA and 20mA, which can then be easily adjusted using either a DC voltage or a pulse width modulated (PWM) signal. Its low 104mV feedback voltage reduces power loss and improves efficiency.
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