BUY MAX6653AEE+ https://www.utsource.net/itm/p/6287476.html
IC TEMP MON FAN CNTRL 16-QSOP
Description: Temperature Sensor and Fan-Speed Controller Features: Monitors and Controls Up to Three Fans Fan-Speed Control Outputs Programmable Temperature Hysteresis Programmable Temperature Trip Points Programmable Fan-Speed Trip Points Programmable Fan-Speed Slew Rate Programmable Fan-Speed Minimum Duty Cycle Programmable Fan-Speed Maximum Duty Cycle Programmable Fan-Speed Ramp Rate Programmable Fan-Speed Fault Timeout Programmable Temperature Fault Timeout Open-Drain Fault Output Temperature Measurement Range: -55°C to +125°C Temperature Measurement Accuracy: ±2°C Temperature Measurement Resolution: 0.125°C Fan-Speed Measurement Range: 0 to 5V Fan-Speed Measurement Accuracy: ±1% Fan-Speed Measurement Resolution: 0.5% Low Power Consumption: 0.5mA Operating Voltage Range: 2.7V to 5.5V Operating Temperature Range: -40°C to +125°C Package: QSOP-16 Application: The MAX6653AEE+ is a temperature sensor and fan-speed controller designed for use in computer systems. It can monitor and control up to three fans, and features programmable temperature hysteresis, temperature trip points, fan-speed trip points, fan-speed slew rate, fan-speed minimum duty cycle, fan-speed maximum duty cycle, fan-speed ramp rate, fan-speed fault timeout, and temperature fault timeout. It is suitable for use in a variety of applications, including server, workstation, and desktop systems. (For reference only)