LB11851MC - Microprocessor Fan Motor Interface Driver
onsemi
Key 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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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.
LB11851MC Datasheet
