AP438 - PWM Fan Speed Controller

Product Overview

Anachip

Part number	AP438
Manufacturer	Anachip
File Size	178.46 KB
Description	PWM Fan Speed Controller
Datasheet	AP438 Datasheet
Note	This datasheet PDF includes multiple part numbers: AP438, AP439. Please refer to the document for exact specifications by model.
Additional preview pages of the AP438 datasheet.

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

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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Published: Apr 13, 2010 |