MAX6651 Description
The MAX6650/MAX6651 fan controllers use an SMBus/I2C-patible interface to regulate and monitor the speed of 5VDC/12VDC brushless fans with builtin tachometers. They automatically force the fan’s tachometer frequency (fan speed) to match a preprogrammed value in the Fan-Speed Register by using an external MOSFET or bipolar transistor to linearly regulate the voltage across the fan. The MAX6650 regulates the speed of...
MAX6651 Key Features
- Closed/Open-Loop Fan-Speed Control for 5V/12V Fans
- 2-Wire SMBus/I2C-patible Interface
- Monitors Tachometer Output Single Tachometer (MAX6650) Up to Four Tachometers (MAX6651)
- Programmable Alert Output
- Hardware Full-On Override
- Synchronize Multiple Fans
- Four Selectable Slave Addresses
- 3V to 5.5V Supply Voltage
- Small Packages 10-Pin µMAX (MAX6650) 16-Pin QSOP (MAX6651)
- 40°C to +85°C