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LN2103 - 2A / 40V Step-Down LED Driver

Datasheet Summary

Description

LN2103 is a step down LED driver that is designed to meet least 2A continuous output current for high power LED application, and utilizes PWM control scheme that switches with 150KHz fixed frequency.

The input voltage range of LN2103 is from 4.2V to 40V.

Features

  • s.
  • Input voltage: 4.2V to 40V.
  • Low Feedback Voltage 0.23V.
  • Driving up to 30 LEDs (1W 6S-5P) at 24 VIN.
  • Oscillation frequency: 150KHz typ.
  • Soft-start, Current limit, Enable function.
  • Great Output Capability.
  • PWM or Analog Dimming Control.
  • Thermal Shutdown function.
  • Built-in internal P-channel MOS.
  • SOP-8 Package.

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Datasheet preview – LN2103

Datasheet Details

Part number LN2103
Manufacturer natLinear
File Size 264.09 KB
Description 2A / 40V Step-Down LED Driver
Datasheet download datasheet LN2103 Datasheet
Additional preview pages of the LN2103 datasheet.

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Full PDF Text Transcription

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150KHz, 2A / 40V Step-Down LED Driver LN2103 ■ General Description LN2103 is a step down LED driver that is designed to meet least 2A continuous output current for high power LED application, and utilizes PWM control scheme that switches with 150KHz fixed frequency. The input voltage range of LN2103 is from 4.2V to 40V. It is suitable for series-parallel 1W, 3W, or 5W high power LED application due to the high operation voltage and output capability. At 24V input voltage, this device can drive up to 30pcs 1W LED(6S-5P) with constant 350mA LED current. The PWM control circuit is able to very the duty ratio linearly from 0 up to 100%. This device also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup.
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