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LR18113 - 1.6X LINEAR FAN DRIVER

General Description

The UTC LR18113 is a low output resistance 1.6X positive voltage linear fan driver with very low dropout voltage at up to 500mA.

The UTC LR18113 consists of an error amplifier, output stage, voltage divider, over temperature protection, current limiting scheme and Enable Control logic.

Key Features

  • S.
  • VOUT Follows 1.6 Times of VSET.
  • 0.3Ω Output Resistance @ 0.5A.
  • Over Temperature Protection.
  • Current Limiting Protection.
  • Enable control.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD LR18113 LINEAR INTEGRATED CIRCUIT 1.6X LINEAR FAN DRIVER WITH ENABLE CONTROL  DESCRIPTION The UTC LR18113 is a low output resistance 1.6X positive voltage linear fan driver with very low dropout voltage at up to 500mA. The UTC LR18113 consists of an error amplifier, output stage, voltage divider, over temperature protection, current limiting scheme and Enable Control logic. VOUT voltage follows the 1.6 times of VSET voltage until it reaches VIN voltage. The VSET voltage must be larger than 1V to guarantee VOUT 1.6 times of VSET. Good regulation over variation in line, load and temperature is also provided by UTC LR18113.  FEATURES * VOUT Follows 1.6 Times of VSET * 0.3Ω Output Resistance @ 0.