3-1
[External Form, Dimensions]
Pin No.1,10 are leads bending formed.
Unit ；mm
Notes
Dimensions which have no tolerance show the typical values.
Terminal No.2,4,6,8,9 are removed.
Bottom Edge of Substrate must be molded
Marking Silver White and clear
External appearance Without noticeable flaw and stain
Material of resin Phenol denatured epoxy resin (Flame class: UL94V-0)
Color Black
Part Nam
e
DC-DC Converter Part No. EHDRD3305
Panasonic Electronic Devices Co.,Ltd.
Materials of leadpins φ0.5 Fe Lead with Cu,Sn and Sn-Bi Plating
Item Contents
2.0
1.8
Forming of leads
(1pin,10pin)
P=2.54
2P 2P 2P 3P
6.0max.
(4.3typ.)
φ0.5
28.2max.
(26.5typ.)
17.9max.
(16.4typ.)
3.5±0.7
1 3 5 7 10
RD3305
lot No.
Terminal No.
Side of marking
3-2
[Absolute Maximum Ratings]
[Electric Characteristics]
Ambient Temperature：25 degC
Vin=141VDC
Iout=100mA
Vin=113 to 170VDC
(note1)
Vin=113 to 170VDC
Iout=100mA
Vin=141VDC
Iout=0 to 100mA
Vin=141VDC
Iout=100mA (note2)
Vin=141VDC
Iout=200mA
note1：Please refer to the derating curve for maximum output current.
note2：The output ripple doesn't include the spike noise.
note3 : Avoid dew condensation always.
[Test Circuit]
Panasonic Electronic Devices Co.,Ltd.
No.
Part Nam
e
DC-DC Converter Part No. EHDRD3305
Power Suppl
y
Item Symbol Rating Unit Remarks
VDC
2 Topr -25 to +85 degC
1 Vin 170
Refer to derating curve.
Operational Temperature Avoid dew condensation
(note3)
Symbol
degC
Strage Temperature Tstg -25 to +105
Condition/notes
Specification
Max. UnitMin. Typ.
40 65 －%7 Efficiency η
－0.03 0.20 Vp-p6 Output ripple voltage Vp
－0.01 0.20 VDC5 Load regulation Vl
－0.01 0.20 VDC
3
Item
No.
Vr
3Output current Iout
4Line regulation
5.60 VDCVout 5.90 6.10
－－200 mA
113 141 170 VDCVin
2Output voltage
Input voltage range
1
We recommend Low Impedance Aluminium capacitors for power supply.
Load
Choke Coil
(ELC11D471F)
470μH／0.82A
EHDRD3305
L1-1 OUTGND
+220μF
/35V
+
Vin
135710
Vout
Iout
L1-2
IN
33μF
/200V
3-3
[Application]
Note）For safety, please use fuse.
[Derating Curve] Vin=113V to 170VDC
[Circuit Diagram]
EHDRD3305
Part Nam
e
DC-DC Converter Part No.
Panasonic Electronic Devices Co.,Ltd.
Load
We recommend Low Impedance Aluminium capacitors for power supply.
Derating Curve
0
100
200
-25 0 25 50 75 100
Ambient temperature Ｔａ[℃]
Output
current Ｉｏｕｔ[ｍＡ]
Over-current
detector
Control circuit
1
OUT
10
IN
7
GND
Improvement
circuit of
efficiency
53
L1-1
L1-2
EHDRD3305
L1-1
IN OUTGND
+
135710
Vou
t
Iout
L1-2
+
33μF
/200V
220μF
/35V
A
C100V
±20%
FUSE
0.1μF
/50V
C2
(50/60Hz)
Choke Coil
(ELC11D471F)
470μH／0.82
A
