Overview: NVT224 dbCOOLt Remote Thermal Monitor and Fan Controller
The NVT224 dbCOOL controller is a thermal monitor and multiple PWM fan controller for noise−sensitive or power−sensitive applications requiring active system cooling. The NVT224 can drive a fan using either a low or high frequency drive signal, monitor the temperature of up to two remote sensor diodes plus its own internal temperature, and measure and control the speed of up to four fans so that they operate at the lowest possible speed for minimum acoustic noise.
The automatic fan speed control loop optimizes fan speed for a given temperature. The effectiveness of the system’s thermal solution can be monitored using the THERM input. The NVT224 also provides critical thermal protection to the system using the bidirectional THERM pin as an output to prevent system or component overheating.
The NVT224 has been through Automotive Qualification according to AEC−Q100 Grade 1 standards.
