AP439
AP439 is PWM Fan Speed Controller manufactured by Anachip.
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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. Ground
OTP 1 VCC...
