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Part Name DC-DC
Converter
Part No.
EHDRD3471
3 - 2
[Absolute Maximum Ratings]
No.
1
2
Item
Power Supply
Operational Temperature
Symbol
Vin
Topr
Rating
-170
-25 to +80
Unit
VDC
degC
Remarks
Refer to derating curve.
Avoid dew condensation
(note3)
3
Strage Temperature
Tstg
-25 to +105
degC
[Electric Characteristics]
Ambient Temperature ： 25 degC
No.
Item
Symbol
Specification
Min. Typ.
Max.
Unit
Condition/notes
1
Input voltage range
Vin
-113
-141
-170
VDC
2
3
4
5
6
7
Output voltage
Output current
Line regulation
Load regulation
Output ripple voltage
Efficiency
Vout
Iout
Vr
Vl
Vp
η
-31.40
－
－
－
－
68
-32.00
－
0.10
0.10
0.04
80
-32.60
-150
0.35
0.35
0.25
－
VDC
mA
VDC
VDC
Vp-p
%
Vin=-141VDC
Iout=-150mA
Vin=-113 to -170VDC
(note1)
Vin=-113 to -170VDC
Iout=-150mA
Vin=-141VDC
Iout=0 to -150mA
Vin=-141VDC
Iout=-150mA(note2)
Vin=-141VDC
Iout=-150mA
note1 ： Please refer to the derating curve maximum output current.
note2 ： The output ripple doesn't include the spike noise.
note3 : Avoid dew condensation always.
[Test Circuit]
EHDRD3471
IN
10
GND
7
L1-2
5
L1-1
3
OUT
1
Vout
Vin
+
33 μ F
/200V
Choke Coil
(ELC11D152F)
1.5mH ／ 0.43A
+
330 μ F
/50V
Iout
Load
We recommend Low impedance Aluminium capacitors for power supply.
Panasonic Electronic Devices Co.,Ltd.
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