零件编号
MAX6644
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生产厂家
Maxim Integrated
MAX6644 数据手册 ( 数据表 ) - Maxim Integrated
Maxim Integrated
General Description
The MAX6643/MAX6644/MAX6645 monitor temperature and automatically adjust fan speed to ensure optimum cooling while minimizing acoustic noise from the fan. Each device measures two temperature locations.
FEATUREs
♦ Simple, Automatic Fan-Speed Control
♦ Internal and External Temperature Sensing
♦ Detect Fan Failure Through Locked-Rotor Output, Tachometer Output, or Fan-Supply Current Sensing
♦ Multiple, 1.6% Output Duty-Cycle Steps for Low Audibility of Fan-Speed Changes
♦ Pin-Selectable or Factory-Selectable LowTemperature Fan Threshold
♦ Pin-Selectable or Factory-Selectable HighTemperature Fan Threshold
♦ Spin-Up Time Ensures Fan Start
♦ Fan-Start Delay Minimizes Power-Supply Load at Power-Up
♦ 32Hz PWM Output
♦ Controlled Duty-Cycle Rate-of-Change Ensures Good Acoustic Performance
♦ 2°C Temperature-Measurement Accuracy
♦ FULLSPD/FULLSPD Input Sets PWM to 100%
♦ Pin-Selectable OT Output Threshold
♦ 16-Pin QSOP and 10-Pin µMAX Packages
APPLICATIONs
Networking Equipment
Storage Equipment
Servers
Desktop Computers
Workstations
零件编号
产品描述 (功能)
视图
生产厂家
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