This document introduces the features and characteristics of ADT7475 dBCool controller. ADT7475 dBCool controller is a thermal monitor and multiple PWM fan controller for noise-sensitive systems. It can control and monitor up to 4 fans and has high and low frequency fan drive signals.
The ADT7475 dBCool® controller is a thermal monitor and multi‑fan PWM controller designed for noise‑sensitive or power‑sensitive applications. It can drive up to four fans, monitor up to two remote temperature diodes plus its internal sensor, and provide automatic fan speed control based on temperature measurements.
The handbook includes full specifications, absolute maximum ratings, pin descriptions, typical performance curves, register tables, and recommended implementation guidelines, enabling designers to integrate and program the device for optimal thermal management.
| Supply Voltage | 3.0 V – 3.6 V |
|---|---|
| Supply Current (interface inactive, ADC active) | 3 mA |
| Local Sensor Accuracy | ±0.5 °C |
| Temperature Resolution | 0.25 °C |
| Number of Fans Controlled | 4 |
The ADT7475 operates from 3.0 V to 3.6 V supply voltage.
The device can control up to four fans.
The temperature resolution is 0.25 °C.