HT45FM2C datasheet(99/171 Pages) HOLTEK

tên linh kiện	HT45FM2C

Giải thích chi tiết về linh kiện	Brushless DC Motor Flash Type 8-Bit MCU

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Rev. 1.10

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Rev. 1.10

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HT45FM2C

Brushless DC Motor Flash Type 8-Bit MCU

HT45FM2C

Brushless DC Motor Flash Type 8-Bit MCU

Preliminar�

Linear Hall Sensor Detection

ThemotorpositionisdetectedusingHallSensorsforwhichthedeviceincludescircuitrytoprocess

signalsfromthesesensors.

Int_AD_EOC

Int_AHL_ Lim

ADC

ADR

EOC

AD HL/LV

Trigger

8bit

DAC

Comparator 1

Int_HbDet

HACM

Int

Trigger

C1BPE

ADLVD/ADHVD

ACS[3:0]

Hall Sensor Detector Block Diagram

Hall Sensor Detection Function Description

ThesignalsfromtheexternallinearHallSensorsaremonitoredusingtheinternal8-bitDAC,the

internal10-bitADCandinternalcomparator1.Themotorpositionismonitoredbytwointerrupts

Int_HbDetorInt_AHL_Limwhichareenabled/disabledbytheLHMCandHACMregisters.The

sixsteprotationalchangeofstateofthemotorpositioncanbetrackedbysettingtheDACdataand

theLHMCregister,tocontrolthemotordirectionandspeed,asshowninthefigure.

SHa

SHb

SHc

2.5V

HL/Hb

linear Hall Sensor Output

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