TC652风扇控制演示板用户指南

ThankyouforpurchasingtheTC652FanControlDemoBoardfromMicrochip

TechnologyInc.TheFanControlDemoBoardisanevaluationtoolthatallowsthe

usertoquicklyprototypefancontrolcircuitsbasedonMicrochip’sTC652orTC653

pulsewidthmodulation(PWM)FanControlICs.

AlogiclevelMOSFETdrivedeviceallowstheFanControlDemoBoardtobeusedwith

virtuallyanybrushlessDCfan.AredLEDstatusindicatorgivesavisualindicationofa

fanfaultcondition(openstatororblockedrotor).AgreenLEDstatusindicatorgivesa

visualindicationofanovertemperaturealert(temperatureisapproximately10°C

higherthanthehightemperaturelimit).

TheTC652FanControlDemoBoardhasthefollowingfeatures:

1.CompleteimplementationofTC652orTC653fancontrolcircuitryona1.0"x1.2"

board.

2.Temperatureproportionalfanspeedcontrol.

3.Overtemperaturealert.

4.Installsdirectlyintouser'sendequipment.

5.Speedsupprototyping,systemdevelopmentandsystemthermal

characterization.TC652FanControlDemoBoardUser’sGuide2002MicrochipTechnologyInc.DS21506BNotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.Therearedishonestandpossiblyillegalmethodsusedtobreachthecodeprotectionfeature.Allofthesemethods,toourknowl-edge,requireusingtheMicrochipproductsinamanneroutsidetheoperatingspecificationscontainedinMicrochip'sDataSheets.Mostlikely,thepersondoingsoisengaged