The WPC03R is a family of high performance DC/DC converters
that offers regulated outputs over input voltage ranges of 9-18V,
18-36V and 34-72V while offering a wide operating temperature
range of -40°C to +85°C without derating.
Each WPC03R contains input filtering to minimize conducted
noise. The design utilizes surface mounted components, including
magnetics, to provide enhanced reliability.
The converter is designed to meet the requirements of EN60950
with the “L” pinout having 1,500 V
DC
isolation. All WPC03R
converters are designed to withstand input voltage transients to
200% of nominal input voltage. An additional feature is the ability
of the WPC03R to drive high capacitive loads.
FEATURES
Low Cost, High Performance
Small DIP Package
Full Power to +85°C
Extended Temperature Range: -40°C to +85°C
Industry Standard Pinouts
Full Short Circuit Protection
High Capacitive Loading Capability
Protected Against High Input Voltage
APPLICATIONS
Telecommunications
Battery Powered Systems
Portable Instruments
Transportation Equipment
Distributed Power Systems
SIMPLIFIED CIRCUIT SCHEMATIC
Internet: http://www.murata-ps.com
Page 1
WPC03R
01/2009
ABSOLUTE MAXIMUM RATINGS
Output Short Circuit Protection --------------Continuous
Internal Power Dissipation ----------------------------1.5W
Max Case Temperature-----------------------------+100°C
ELECTRICAL SPECIFICATIONS
Specifications typical at T
A
=25°C, nominal input voltage, rated output current unless otherwise stated.
Nominal Rated
Input
Output
Voltage Voltage
(Volts)
(Volts)
12
12
12
12
12
12
24
24
24
24
24
24
48
48
48
48
48
48
5.0
12.0
15.0
+5.0
+12.0
+15.0
5.0
12.0
15.0
+5.0
+12.0
+15.0
5.0
12.0
15.0
+5.0
+12.0
+15.0
Output Current (mA)
Min Load Rated Load
(See Note 1)
Model
WPC03R12S05
WPC03R12S12
WPC03R12S15
WPC03R12D05
WPC03R12D12
WPC03R12D15
WPC03R24S05
WPC03R24S12
WPC03R24S15
WPC03R24D05
WPC03R24D12
WPC03R24D15
WPC03R48S05
WPC03R48S12
WPC03R48S15
WPC03R48D05
WPC03R48D12
WPC03R48D15
Max Input
Current
(mA)
Rated Load
448
445
445
470
475
475
230
230
225
240
235
230
120
118
116
120
118
116
Max
Capacitive
Load ( F)
Efficiency
%
60
24
20
+30
+12
+10
60
24
20
+30
+12
+10
60
24
20
+30
+12
+10
600
250
200
+300
+125
+100
600
250
200
+300
+125
+100
600
250
200
+300
+125
+100
600
250
200
+300
+125
+100
600
250
200
+300
+125
+100
600
250
200
+300
+125
+100
77
80
81
74
76
77
74
75
76
73
74
75
74
75
76
73
76
77
NOTE 1:
Although minimum load specifications are indicated for load measurement purposes, all models will operate under no-load conditions.
ORDERING INFORMATION
WPC03R
Device Family
Indicates wide input power 3W regulated DC/DC
Model Number
Selected from Table of Electrical Characteristics
xx=input voltage
y=number of outputs: S=single, D=dual
zz=output voltage
Pinout option E or L
xxyzz -
Page 2
WPC03R
01/2009
COMMON SPECIFICATIONS
Specifications typical at T
A
=25°C, nominal input voltage, rated output current unless otherwise stated.
Parameter
Input
Voltage Range
Conditions
Min
9
18
34
Reflected Ripple Current
Isolation
Safety Standards
Rated Voltage
Test Voltage—60 Hz, 10 secs
Resistance
Capacitance
Leakage Current
Output
Rated Power
Voltage Setpoint Accuracy
Temperature Coefficient
Line Regulation-singles
Low line to high line
Line Regulation-duals
Low line to high line
Load Regulation-singles
Min load to rated load
Load Regulation-duals
Min load to rated load
Ripple & Noise
BW=5 Hz to 20 MHz
General
Switching Frequency
Variable Frequency Min - Max
MTTF per MIL-HDBK-217, Rev F
T
A
=25°
Weight
Temperature
Operation
Storage
+0.02
+1.5%
+1.5%
+2%
+2%
100
225
1,000,000
12
-40
-55
+85
+125
3
+3.0
W
%
%/°C
%
%
%
%
mV p-p
kHz
Hours
g
°C
°C
V
iso
=240Vac, 60 Hz
Designed to meet requirements of
EN60950, EN41003 & UL1950
Typ
12
24
48
50
Max
18
36
72
Units
Vdc
Vdc
Vdc
mA p-p
“L” Pinout
“E” Pinout
“L” Pinout
“E” Pinout
1500
1000
1500
1000
10
220
30
Vdc
Vdc
Vpk
Vpk
G
pF
Arms
50
70
THROUGH-HOLE SOLDERING INFORMATION
These devices are intended for wave soldering or manual soldering.
They are not intended to be subject to surface mount processes under any circumstances.
The normal wave soldering process can be used with these devices where the device is subjected to a maximum wave temperature of 260°C for a period of
no more than 10 seconds. Within this time and temperature range, the integrity of the device’s plastic body will not be compromised and internal temperatures
within the converter will not exceed 175°C. Care should be taken to control manual soldering limits identical to that of wave soldering.
Page 3
WPC03R
01/2009
MECHANICAL SPECIFICATIONS
PINOUT “E”
Pin
Number
1
2
3
10
11
12
13
14
15
22
23
24
Pin Function
Singles
Duals
+Vin
+Vin
No connection
-Vout
No connection Common
-Vout
Common
+Vout
+Vout
-Vin
-Vin
-Vin
-Vin
+Vout
+Vout
-Vout
Common
No connection Common
No connection
-Vout
+Vin
+Vin
PINOUT “L”
Pin
Number
2
3
9
11
14
16
22
23
Pin Function
Singles
Duals
-Vin
-Vin
No connection
No connection
+Vout
-Vout
+Vin
+Vin
-Vin
-Vin
Common
-Vout
+Vout
Common
+Vin
+Vin
TECHNICAL INFORMATION
Notes:
1. All dimensions in inches and (millimeters).
2. Units are encapsulated in a low thermal resistance molding compound which has excellent chemical resis-
tance, wide operating temperature range, and good electrical properties under high humidity environments.
The encapsulant and outer shell of the unit have UL94V-0 ratings. Lead material is matte tin 100 microinches
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