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LB11851MC - Microprocessor Fan Motor Interface Driver

Features

  • Fan motor interface driver function (FGIN) ⇒ This IC accepts a signal from a microcontroller and interfaces to external power transistors (PMOS and NMOS) to provide high-efficiency low-power single-phase full-wave drive.
  • Variable speed input pin (PWMIN) ⇒ PMOS side PWM control NMOS side current regeneration using slow decay is used to achieve quite high-speed control.
  • Built-in kickback absorption circuit (OUT1P/2P) ⇒ This circuit absorbs the kickback current that is.

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Datasheet Details

Part number LB11851MC
Manufacturer onsemi
File Size 106.10 KB
Description Microprocessor Fan Motor Interface Driver
Datasheet download datasheet LB11851MC Datasheet

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Full PDF Text Transcription

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Ordering number: ENA2091 LB11851MC Monolithic Digital IC Microprocessor Fan Motor Interface Driver http://onsemi.com Overview The LB11851MC provides an interface between a microcontroller motor control signal and external MOS transistors. This device can implement a microprocessor fan driver with a minimal number of external components. The LB11851MC is optimal for server and personal computer microprocessor fan drive in response to temperature or other external signals when high precision and high air flow are required. Features • Fan motor interface driver function (FGIN) ⇒ This IC accepts a signal from a microcontroller and interfaces to external power transistors (PMOS and NMOS) to provide high-efficiency low-power single-phase full-wave drive.
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