FC122 datasheet(3/10 Pages) SITI

3 / 10 page

Fan Speed Control IC

Version

：A.002

PAGE 2

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FC122

Pin Description

FC122

VXXYYZZ

Pin No. Pin Name

Signal Type

Description

Analog Input

Fan speed control input

Analog Input

Sensing voltage from an external thermistor

VOT

Analog Input

Reference voltage for over-temperature detection

GND

Ground

VST

Analog Input

Fan start voltage

OUT

Analog Output Output voltage

FLT

Digital Output Open-collector output for over-temperature fault

VDD

Power

Supply voltage

Absolute Maximum Ratings (Unless otherwise noted, T

A = 25 °C)

Parameter

Rating

Supply Voltage

( VDD )

< +16.0 V

Input Voltage Range

( VI )

- 0. 3 V to VDD + 0.3 V

Output Voltage Range

( VO )

- 0. 3 V to VDD + 0.3 V

Junction Temperature

(TJ )

< 150

°C

Operating Temperature

(Topr )

°C to

+ 70

°C

Storage Temperature

(Tstg )

- 55

°C to

+ 150

°C

ESD Susceptibility

( ESD )

> 2000 V

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