HpFan Controller中文资料HP Power Supply Fan Controller数据手册Champion规格书

特性 Features

· Combine Mother Board Temperature Signals with Power Supply Temperature Signals
· Low BOM and It may reduce one Fan
· Precision OP (TEAO) uses TFB to sense the thermistor information at power supply
· Precision 25KHz Ramp generator: Peak ~ 3.5V (Duty 100%) and Valley ~1.5V (Duty ~1.5%)
· Precision 25KHz Ramp generator compares TEAO, Caverage, and Fault to determine the duty cycle of FANPWMOUT
· It does not require negative voltage

· Accept Pulse PWMing signal FANCMD (prefer it is below 100Khz) from Mother Board

· Precision Duty to Duty Converter or called a Pulse to Pulse Converter or called PWMing to PWMing Converter
· The amplitude of Input pulse (FANCMD), peak to peak can be from 0V - 5V to 0V - 2V
· Minimum VCC > 8V Power Supply

· Preferred VCC~ 12V
· Precision (1% variation) 5V Reference Voltage
· Precision Internally Generated 25KHz +/-10% Switching

Frequency
· FANPWMOUT 1.5% to 100% Output Duty Cycle
· Thermal Shut Down can be done by sensing TFB or TEAO
· Low Operating Current, Ivcc ~ 0.5mA

· 8 pin package