AGQ150-48S05 DC-DC Converter
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Application Note
Typical Application
AGQ150
EMI Filter
Fuse
In+
Out+
Vin+
CNT
Vo+
S+
Vdc
C1
C2
C3
C4
Load
Trim
S-
Vin-
In-
Out-
Vo-
Figure 11 Typical application
C1: 100μF/100V electrolytic capacitor, P/N: UVZ2A101MPD (Nichicon) or equivalent caps
C2: 1μF/100V X7R ceramic capacitor
C3: 1μF/25V X7R ceramic capacitor
C4: 470μF/25V electrolytic capacitor, P/N: UPM1E471MPD (Nichicon) or equivalent caps
External fast blow fuse with a rating of 15A should be used in the application.
If the load is far from the unit, connect S+ and S- to the terminal of the load respectively to
compensate the voltage drop on the transmission line.
Remote ON/OFF
Either positive or negative remote ON/OFF logic is available in AGQ150-48S05. The following
figure is the detailed internal circuit and reference in AGQ150-48S05.
12V
15k
Remote
ON/OFF
12V
+Vin
PWM
controller
PWM
controller
19.7k
4.7k
15k
85.6k
Remote
ON/OFF
UVLO
6.8k
Negative logic
Positive logic
Figure 12 Remote ON/OFF internal diagram
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