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AP439 - PWM Fan Speed Controller

General Description

The AP438/9 series’s PWM output has built-in NPN power transistor that controls the Fan current & Fan speed.

AP439 built-in over temperature alarm flag.

- PC Power.

Pin Assignment Front View AP438 Pin Descriptions Name VCC VIN OTP PWM GND Descr

Key Features

  • s - Built-in 30Khz OSC provide 0%~100% PWM output - Over Temperature Protector(OTP) flag. (AP439 only). - Open collect output(OTP & PWM pins). - SIP-4L package for AP438. - SIP-5L, SOP-8L package for AP439.
  • General.

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Datasheet Details

Part number AP439
Manufacturer Anachip
File Size 178.46 KB
Description PWM Fan Speed Controller
Datasheet download datasheet AP439 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com AP438/9 PWM Fan Speed Controller „ Features - Built-in 30Khz OSC provide 0%~100% PWM output - Over Temperature Protector(OTP) flag. (AP439 only). - Open collect output(OTP & PWM pins). - SIP-4L package for AP438. - SIP-5L, SOP-8L package for AP439. „ General Descriptions The AP438/9 series’s PWM output has built-in NPN power transistor that controls the Fan current & Fan speed. AP439 built-in over temperature alarm flag. „ Applications - PC Power. - DC Fan „ Pin Assignment Front View AP438 „ Pin Descriptions Name VCC VIN OTP PWM GND Description Operating voltage input Reference input voltage Over Temperature protect flag. PWM Open Collect Output.