MAX6650EUB+T Datasheet PDF - Maxim Integrated

●The MAX6650EUB+T is a fan speed regulator and monitor with SMBus/I2C compatible interface in 10 pin µMAX package. This fan controller uses SMBus/I2C compatible interface to regulate and monitor speed of 5VDC/12VDC brushless fans with built-in tachometers. It automatically forces the fan"s tachometer frequency (fan speed) to match pre-programmed value in fan speed register by using an external MOSFET or bipolar transistor to linearly regulate voltage across the fan. The MAX6650 regulates speed of a single fan by monitoring its tachometer output. The device provides general purpose input/output (GPIO) pins that serve as digital inputs, digital outputs or various hardware interfaces. Capable of sinking 10mA, these open-drain inputs/outputs can drive an LED. The MAX6650 is used in RAID servers, workstations, networking and telecommunication applications.

● Supply voltage range is 3V to 5.5V

● Operating temperature range from -40°C to 85°C

● Controls and monitors fan speed for high performance thermal management

● Closed/open loop fan speed control for 5V/12V fans

● Programmable alert output, hardware full-on override

● Output voltage range from 0.3V to 5.2V

● Four selectable slave addresses

● Supply current of 10mA and SCL clock frequency of 400KHz

● Output sink current of 10mA and output source current of 50mA