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LN2118 - Step-up DC/DC Converter - Backlight Driver

General Description

The LN2118 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on Car GPS screen and digital cameras etc.

Key Features

  • r>.
  • Input voltage range.
  • Output voltage range 2.7V.
  • 6.0V up to 26V externally set-up reference voltage 0.2V.
  • Oscillation frequency 1.0MHz±20%.
  • Efficienc.

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Datasheet Details

Part number LN2118
Manufacturer natlinear
File Size 310.59 KB
Description Step-up DC/DC Converter - Backlight Driver
Datasheet download datasheet LN2118 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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Step-up DC/DC Converter —Backlight Driver LN2118 ■ General Description The LN2118 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on Car GPS screen and digital cameras etc. Output voltage of up to 26V can be derived, and from a 3.6V input four white Led’s cab be driven in series or alternatively, using a 3.6V input, a network of seven parallel legs with three in each may be driven. Luminance of the LED’s is controlled by changing the duty cycle of a PWM signal applied to the CE pin. In addition, an internal MOSFET with an RDS-on of 2Ω is used. Allow profile and small board area solution can be achieved using a chip coil and an ultra small ceramic output capacitor (CL) of 0.22uF.