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MAX6650

Part Number	MAX6650
Manufacturer	Maxim
Description	Fan-Speed Regulators and Monitors
Published	May 2, 2005
Detailed Description	EVALUATION KIT AVAILABLE MAX6650/MAX6651 Fan-Speed Regulators and Monitors with SMBus/I2C-Compatible Interface General...
Datasheet	MAX6650 PDF File

Overview

EVALUATION KIT AVAILABLE MAX6650/MAX6651 Fan-Speed Regulators and Monitors with SMBus/I2C-Compatible Interface General Description The MAX6650/MAX6651 fan controllers use an SMBus/I2C-compatible interface to regulate and monitor the speed of 5VDC/12VDC brushless fans with builtin tachometers.
They automatically force the fan’s tachometer frequency (fan speed) to match a preprogrammed value in the Fan-Speed Register by using an external MOSFET or bipolar transistor to linearly regulate the voltage across the fan.
The MAX6650 regulates the speed of a single fan by monitoring its tachometer output.
The MAX6651 also regulates the speed of a single fan, but it contains additional tachometer inp...

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