AGQ200B-48S3V3 DC-DC Converter
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ꢀ
ApplicationꢀNoteꢀ
TypicalꢀApplicationꢀ
AGQ200
EMIꢀFilter
Fuse
In+
Inꢁ
Out+
Outꢁ
Vin+
CNT
Vo+
S+
Vdc
C1
C2
C3
C4
Load
Trim
Sꢁ
Vinꢁ
Voꢁ
ꢀ
Figureꢀ11ꢀ ꢀ Typicalꢀapplicationꢀ
C1:ꢀ100ꢂF/100Vꢀelectrolyticꢀcapacitor,ꢀP/N:ꢀUVZ2A101MPDꢀ(Nichicon)ꢀorꢀequivalentꢀcapsꢀ
C2:ꢀ1ꢂF/100VꢀX7Rꢀceramicꢀcapacitorꢀ
C3:ꢀ1ꢂF/25VꢀX7Rꢀceramicꢀcapacitorꢀ
C4:ꢀ470ꢂF/25Vꢀelectrolyticꢀcapacitor,ꢀP/N:ꢀUPM1E471MPDꢀ(Nichicon)ꢀorꢀequivalentꢀcaps
Externalꢀfastꢀblowꢀfuseꢀwithꢀaꢀratingꢀofꢀ15Aꢀshouldꢀbeꢀusedꢀinꢀtheꢀapplication.ꢀ ꢀ
Ifꢀ theꢀ loadꢀ isꢀ farꢀ fromꢀ theꢀ unit,ꢀ connectꢀ S+ꢀ andꢀ Sꢁꢀ toꢀ theꢀ terminalꢀ ofꢀ theꢀ loadꢀ respectivelyꢀ toꢀ
compensateꢀtheꢀvoltageꢀdropꢀonꢀtheꢀtransmissionꢀline.ꢀ
RemoteꢀON/OFFꢀ ꢀ
EitherꢀpositiveꢀorꢀnegativeꢀremoteꢀON/OFFꢀlogicꢀisꢀavailableꢀinꢀAGQ200Bꢁ48S3V3.ꢀ ꢀ
TheꢀfollowingꢀfigureꢀisꢀtheꢀdetailedꢀinternalꢀcircuitꢀandꢀreferenceꢀinꢀAGQ200Bꢁ48S3V3.ꢀ
12V
15k
Remote
ON/OFF
12V
+Vin
PWM
controller
PWM
controller
19.7k
4.7k
15k
85.6k
Remote
ON/OFF
UVLO
6.8k
Negativeꢀlogic
Positiveꢀlogic
Figureꢀ12ꢀ ꢀ RemoteꢀON/OFFꢀinternalꢀdiagramꢀ
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