Datasheet Summary
EMC2301/2/3/5
Single/Multiple RPM-Based PWM Fan Controller
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:
- 0.5% accuracy from 500 RPM to 16k RPM (external crystal oscillator)
- 1% accuracy from 500 RPM to 16k RPM (internal clock)
- SMBus 2.0 pliant:
- Up to 6 selectable SMBus addresses for the EMC2303/5
- SMBus Alert patible
- CLK Pin Can Provide a Clock Source Output
- EMC2301...
