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HT45F5Q Datasheet(PDF) 86 Page - Holtek Semiconductor Inc

No. de pieza HT45F5Q
Descripción Electrónicos  Charger Flash MCU
PDF  114 Pages
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Fabricante Electrónico  HOLTEK [Holtek Semiconductor Inc]
Página de inicio  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT45F5Q Datasheet(HTML) 86 Page - Holtek Semiconductor Inc

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HT45F5Q
Charger Flash MCU
HT45F5Q
Charger Flash MCU
OPA0 Functions
TheOPA0canoperatetogetherwiththeMUX,DACandOPA1asshowninthemainfunctional
blocksoftheBatterychargingcircuit.
TheOPA0providesitsinputvoltageoffsettobeadjustablebyusingcommonmodeinputto
calibratetheoffset.
Thecalibrationstepsareasfollowing:
• 1.SetA0FM=1tosetuptheoffsetcalibrationmode,hereS1onandS2off.
• 2.SetA0RSPtoselectwhichinputpinistobeusedasthereferencevoltage–IsensepinorVM.
• 3.AdjustA0OF4~A0OF0untiltheoutputstatuschanges
• 4.SetA0FM=0torestorethenormalmode.
Note:1.Whencalibration,thedevicecandetecttheOPAoutputstatusbyA0Xbit.
2.VMvoltageis0.1VatVDD=5V.
3.AfterOPA0offsetcalibration,settheA0RSPbitbytheactualapplications.
• PGDR Register
Bit
7
6
5
4
3
2
1
0
Na�e
—
—
—
—
—
—
—
PGDF
R/W
—
—
—
—
—
—
—
R
POR
—
—
—
—
—
—
—
0
Bit7~1
Unimplemented,readas“0”
Bit0
PGDF:PowerGoodDetectionreadyflag
0:DetectVDD<4.6V
1:DetectVDD≥4.6V
Note:ThedevicecandetecttheVDDcurrentstatusbyPGDFbit.



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