EMC2302
EMC2302 Dual PWM fan controller with close loop control, 0.5% accurate drive, SMBus, Alert, clock driver or input support
制造商:
产品信息
The EMC2302 is an SMBus compliant fan controller with up to two 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.
The closed loop Fan Speed Control algorithm (FSC) has the capability to detect aging fans and alert the system. It will likewise detect stalled or locked fans and trigger an interrupt.
Additionally, the EMC2302 offers a clock output so that multiple devices may be chained and slaved to the same clock source for optimal performance in large distributed systems.
Features
Two Programmable Fan Control circuits
4-wire fan compatible
High speed PWM (26 kHz)
Low speed PWM (9.5Hz - 2240 Hz)
Optional detection of aging fans
Fan Spin Up Control and Ramp Rate Control
Alert on Fan Stall
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 Compliant
SMBus Alert compatible
CLK Pin can provide a clock source output
Available in a 10-pin MSOP RoHS Compliant package
Applications
Servers
Projectors
Industrial and Networking Equipment
Notebook Computers