Auto Temperature-Fan mode is an intelligent, closed-loop control that optimizes fan speed according to user-defined parameters. Each mode controls the fan speed by changing the duty cycle of a PWM output. The AMC6821 has three fan control modes: Auto Temperature-Fan mode, Software-RPM mode, and Software-DCY mode. Using either a low-frequency or a high-frequency PWM signal, this device can simultaneously drive a fan, monitor remote sensor diode temperatures, and measure and control the fan speed so that it operates with minimal acoustic noise at the lowest possible speed. It is designed for noise-sensitive or power-sensitive applications that require active system cooling. The AMC6821 is an intelligent temperature monitor and pulse-width modulation (PWM) fan controller. I2C is a trademark of Philips International, Inc.Īll other trademarks are the property of their respective owners. Pentium M, Pentium-IV are trademarks of Intel.
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