EMC2303 Description
The EMC2301/2/3/5 family is an SMBus pliant fan controller with up to five independently controlled PWM fan drivers. Each fan driver is controlled by a programmable frequency PWM driver and Fan Speed Control algorithm that operates in either a closed loop fashion or as a directly PWM-controlled device. Each closed loop Fan Speed Control (FSC) algorithm has the capability to detect aging fans and alert the system.
EMC2303 Key Features
- Up To Five Programmable Fan Control Circuits
- 4-wire fan patible
- High-speed PWM (26 kHz)
- Low-speed PWM (9.5 Hz-2240 Hz)
- Optional detection of aging fans
- Fan Spin Up Control and Ramp Rate Control
- Alert on Fan Stall
- Up to three selectable default fan speeds for the EMC2303/5
- Watchdog Timer
- RPM-Based Fan Control Algorithm