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The user programs the desired air velocity set point at the sensor location, which is derived empirically during the prototyping or analysis stage of your product. The sensed air velocity is compared to the set point in order to generate a PWM control input to the fan. In this fashion, the C600 increases and decreases fan RPM in order to maintain the desired air velocity.
The controller also communicates to a host system by means of I2C or UART, and can provide, the air velocity, air temperature, as well as the PWM signal being generated, all in real time.
Should your cooling fan(s) be unable to generate the desired flow requirement, then the controller would initiate a low-flow alarm to the system. Because the C600 also measures air temperature, a second configurable over-temp alarm can also be initiated to the system. If, within your system you have access to monitor fan RPM, you can even predict filter clog by comparing the fan RPM to the sensed air velocity over time!
Advanced users may also implement the C600 to control fan speed using a temperature set point, instead of an air velocity set point. In this case, the C600 will modulate fan RPM to maintain the desired temperature using a tunable PI loop.
This controller is extremely compact, (<1.0 in2), using 7 pins on standard 0.1" centers. The component is mounted directly to your PCB, wherever air velocity or temperature is most critical in your system.
If long term reliability, acoustic noise and power consumption are critical concerns in your application, implementing the C600 fan controller is your most cost effective way to ensure thermal performance is met, while optimizing these variables. Call us today to learn more.
The user programs the desired air velocity set point at the sensor location, which is derived empirically during the prototyping or analysis stage of your product. The sensed air velocity is compared to the set point in order to generate a PWM control input to the fan. In this fashion, the C600 increases and decreases fan RPM in order to maintain the desired air velocity.
The controller also communicates to a host system by means of I2C or UART, and can provide, the air velocity, air temperature, as well as the PWM signal being generated, all in real time.
Should your cooling fan(s) be unable to generate the desired flow requirement, then the controller would initiate a low-flow alarm to the system. Because the C600 also measures air temperature, a second configurable over-temp alarm can also be initiated to the system. If, within your system you have access to monitor fan RPM, you can even predict filter clog by comparing the fan RPM to the sensed air velocity over time!
Advanced users may also implement the C600 to control fan speed using a temperature set point, instead of an air velocity set point. In this case, the C600 will modulate fan RPM to maintain the desired temperature using a tunable PI loop.
This controller is extremely compact, (<1.0 in2), using 7 pins on standard 0.1" centers. The component is mounted directly to your PCB, wherever air velocity or temperature is most critical in your system.
If long term reliability, acoustic noise and power consumption are critical concerns in your application, implementing the C600 fan controller is your most cost effective way to ensure thermal performance is met, while optimizing these variables. Call us today to learn more.