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HT45FM2C bảng dữ liệu(PDF) 124 Page - Holtek Semiconductor Inc

tên linh kiện HT45FM2C
Giải thích chi tiết về linh kiện  Brushless DC Motor Flash Type 8-Bit MCU
PDF  171 Pages
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nhà sản xuất  HOLTEK [Holtek Semiconductor Inc]
Trang chủ  http://www.holtek.com
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HT45FM2C bảng dữ liệu(HTML) 124 Page - Holtek Semiconductor Inc

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Rev. 1.10
1�4
�a� �0� �01�
Rev. 1.10
1�5
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HT45FM2C
Brushless DC Motor Flash Type 8-Bit MCU
HT45FM2C
Brushless DC Motor Flash Type 8-Bit MCU
Preliminar�
DC Motor Control
Thedevicecancontrolmotorsusing1or2pins.TakingtheexampleofDCFanHeadmotorcontrol.
a2-pinDCMotorInterfacecancontrolthefanheadmotorspeedanddirection,whilethe1-pinDC
MotorInterfacecanonlycontrolthemotorspeed.TheFH_MSbitintheDCMCR1registerisused
toselecteithera1-pinor2-pinDCMotorInterface.
2-pin DC Motor Control
Inthiscasethe2-pinDCMotorinterfacecancontrolboththemotorspeedanddirection.An
externalcircuitusingalimitswitchoraVRcircuitcanbeusedtocontrolthemotordirection.The
10-bitCTMoutputPWMOisusedtoadjustthePWMdutycycletocontrolDCmotorspeed.The
DC_MCTLcircuitcontrolstheDCmotordirection.
VDDM=5V
FH0_SAT
FH0_SBT
FH0_RI
FH0_LI
HT45FM2C
10-bit CTM
TMR0
PWMO
FH0_FR
FH0_STOP
P
P
N
N
L_LSW
R_LSW
VDDM=5V
FH1_SAT
FH1_SBT
FH1_RI
FH1_LI
10-bit CTM
TMR1
PWMO
FH1_FR
FH1_STOP
P
P
N
N
L_LSW
R_LSW
DC_MCTL
DC_MCTL
FH0_PA
FH0_PB
FH1_PA
FH1_PB
VDDM=5V
VDDM=5V
VDDM=5V
VDDM=5V
FH_MS
0
1
1
0
FH_MS
0
1
1
0
1
1
2-Pin DC Motor Interface Application Circuit
TheDCcontrolorderfortheMotordirectionisthatthemotorshouldbefree(FH[0/1]_STOP)
beforeforward(FH[0/1]_FR)andthenchangedirection.Itisusedtoadjusttheoutputpolarity
accordingtotheexternalgatedriveconfiguration(PtypeorNtype).TheDCFanHeadinterface
resetdefaultvalueisFH0_SAT=hi-z/FH0_SBT=hi-zandFH1_SAT=hi-z/FH1_SBT=hi-z.
FH[0/1]_STOP
FH[0/1]_FR
DC_Motor
0
1
Forward
0
0
Backward
1
V
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