This document introduces the features of ADM1027 dBCOOL controller, including monitoring voltage, fan speed, temperature, VID bits, etc., and automatic fan speed control and enhanced acoustic mode.
The ADM1027 is a complete systems monitor and multiple PWM fan controller designed for noise-sensitive applications requiring active system cooling. It monitors up to five supply voltages (including 12V, 5V, 2.5V CPU supplies) and controls the speed of up to four fans based on measured temperatures.
| Supply Voltage Range | 3.0 V to 5.5 V |
|---|---|
| Number of Monitored Supply Voltages | Up to 5 |
| Number of Controlled Fan Speeds | Up to 4 |
| Temperature Sensors Included | 1 On-Chip and 2 Remote |
| SMBus Compliance | SMBus 2.0 Electrical Specifications |
| Package Type | 24-Lead QSOP |
The maximum junction temperature (Tjmax) is 150°C.
Yes, it can be powered from a 5 V supply and monitors the 5 V power supply via the 5Vin pin.
Yes, it includes an Automatic Fan Speed Control Mode that optimizes fan speed based on measured temperature.