MAX6660 Remote-Junction Temperature-Controlled Fan-Speed Regulator With SMBus Interface

The MAX6660 is a remote Temperature Sensor and fan-speed Regulator that provides a complete fan-control solution. The remote Temperature Sensor is typically a common-collector PNP such as a substrate PNP of a Microprocessor or a diode-connected Transistor typically a low-cost, easily mounted 2N3904 NPN type or 2N3906 PNP type.
The device also incorporates a closed-loop Fan Controller that regulates fan speed with tachometer feedback. The MAX6660 compares temperature data to a fan threshold temperature and gain setting, both programmed over the SMBus by the user. The result is Automatic fan control that is proportional to the remote-junction temperature. The temperature feedback loop CAN be broken at any time for system control over the speed of the fan.
Fan speed is voltage controlled as opposed to PWM controlled, greatly reducing acoustic noise and maximizing fan reliability. An on-chip power device drives fans rated up to 250mA.
Temperature data is updated every 0.25s and is readable at any time over the SMBus Interface The MAX6660 is accurate to 1C (max) when the remote junction is between +60C to +100C. Data is formatted as a 10-bit + sign word with 0.125C resolution.
The MAX6660 is specified for -40C to +125C and is available in a 16-pin QSOP package.
By Maxim Integrated Products
MAX6660 's PackagesMAX6660 's pdf datasheet

MAX6660 Pinout, Pinouts
MAX6660 pinout,Pin out
This is one package pinout of MAX6660,If you need more pinouts please download MAX6660's pdf datasheet.

MAX6660 Application circuits
MAX6660 circuits
This is one application circuit of MAX6660,If you need more circuits,please download MAX6660's pdf datasheet.

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