MURATA WPN20R48S05C

WPN20
20W Regulated DC/DC Converter
SELECTION GUIDE
Order Code
Input Voltage
Nom.
V
Output
Voltage
V
12
12
12
24
24
24
24
24
48
48
48
48
5.0
12.0
±12.0
3.3
5.0
12.0
±12.0
±15.0
5.0
12.0
±12.0
±15.0
RoHS compliant
WPN20R12S05C
WPN20R12S12C
WPN20R12D12C
WPN20R24S03C
WPN20R24S05C
WPN20R24S12C
WPN20R24D12C
WPN20R24D15C
WPN20R48S05C
WPN20R48S12C
WPN20R48D12C
WPN20R48D15C
Operating temperature range: -40ºC to
+100ºC
INPUT CHARACTERISTICS
FEATURES
Output Current
Min.
Nom.
A
A
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
0.0
Input Current
Efficiency
Nom. Load
A
%
4.00
1.66
±0.83
6.00
4.00
1.66
±0.83
±0.67
4.00
1.66
±0.83
±0.67
2.00
2.00
2.00
1.00
1.00
1.00
1.00
1.00
0.50
0.50
0.50
0.50
84
86
86
83
84
87
87
87
85
88
87
87
Industry standard pinout
Parameter
Conditions
Min.
Typ.
Max.
Input and output filtering
Voltage range
All WPN20R12 types
All WPN20R24 types
All WPN20R48 types
9
18
33
12
24
48
mA p-p
All WPN20R12 types
All WPN20R24 types
All WPN20R48 types
7
15.5
30
18
36
75
50
8.8
17
33
Typ.
Max.
Units
60
50
20
±1.5
±0.005
±0.1
±0.5
±0.5
±2.0
100
100
W
%
%/ºC
%
%
%
%
mVp-p
mVp-p
Typ.
Max.
Units
Low profile shell
Single and dual outputs
Output trim function
DESCRIPTION
Reflected ripple current
Undervoltage lockout
threshold
Units
V
V
OUTPUT CHARACTERISTICS
The WPN20RC series is available in three input
voltage ranges of 9-18V, 18-36V and 33-75V. The
unit is housed in a space saving aluminum shell.
The 300KHz switching frequency and forward
converter topology provide excellent performance
across all line and load conditions. Other features
include: under voltage lock-out, internal temperature shutdown, soft start and over current
protection.
Parameter
An output trim feature is provided, allowing the
user to compensate for long line lengths.
Ripple & Noise
Applications include: Telecommunications, Battery
Powered Sytems, Process Control Equipment,
Transportation Equipment and Distributed Power
Systems.
Short circuit &
overcurrent protection
The product range has been recognised by Underwriters Laboratory (UL) to UL 1950 for operational
insulation, file number E179522 applies.
Conditions
Min.
Rated power
Voltage setpoint accuracy
Temperature coefficient
Line regulation
Load regulation
Output voltage adjust range
Singles
Duals
Singles
Min load to
Nom. load
Duals
Single outputs, BW = 5Hz to 20MHz
Dual outputs, BW = 5Hz to 20MHz
See attached plots
High line to low line
Continuous
GENERAL CHARACTERISTICS
Parameter
Conditions
Switching frequency
Max capacitive load
MTTF per ML-HDBK-217
Ground benign
Min.
Circuit stress method
TA = +25º unmodified database
300
550
kHz
mF/A
1.4
MHr
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries - email: [email protected], tel: +44 (0)1908 615232
KDC_WPN20RC.C01 Page 1 of 4
WPN20
20W Regulated DC/DC Converter
ISOLATION CHARACTERISTICS
Parameter
Conditions
Rated voltage
Test voltage
Resistance
Capacitance
Min.
Typ.
Max.
1500
1500
10
2400
60Hz, 10 seconds
Units
Vpk
Vpk
GΩ
pF
TEMPERATURE CHARACTERISTICS
Parameter
Conditions
Min.
Specification
Operation
Storage
Thermal shutdown
Case
Case
-40
-40
-55
105
Case
Typ.
Max.
Units
+85
+85
+125
115
°C
°C
°C
°C
RoHS COMPLIANCE INFORMATION
This series is compatible with RoHS soldering systems with a peak wave solder temperature of 260ºC
for 10 seconds. The pin termination finish on this product series is matte tin (100 microns min.) over
nickel (40-80 microinches min.). The series is backward compatible with Sn/Pb soldering systems.
For further information, please visit www.murata-ps.com/rohs
THERMAL DERATING CURVE
TECHNICAL NOTES
ISOLATION VOLTAGE
‘Hi Pot Test’, ‘Flash Tested’, ‘Withstand Voltage’, ‘Proof Voltage’, ‘Dielectric Withstand Voltage’ & ‘Isolation Test Voltage’ are all terms that relate to the same thing, a test voltage,
applied for a specified time, across a component designed to provide electrical isolation, to verify the integrity of that isolation.
Murata Power Solutions WPN20 series of dc/dc converters are all 100% production tested at their stated isolation voltage. This is 1500 Vpk for 10 seconds.
A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?”
The WPN20 series has been recognized by Underwriters Laboratory, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC.
The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be
expected to function correctly with several hundred volts offset applied continuously across the isolation barrier; but then the circuitry on both sides of the barrier must be regarded
as operating at an unsafe voltage and further isolation/insulation systems must form a barrier between these circuits and any user-accessible circuitry according to safety standard
requirements.
REPEATED HIGH-VOLTAGE ISOLATION TESTING
It is well known that repeated high-voltage isolation testing of a barrier component can actually degrade isolation capability, to a lesser or greater degree depending on materials, construction and environment. While manufactured parts can withstand several times the stated test voltage, the isolation capability does depend on the wire insulation. Any
material, including this enamel (typically polyurethane) is susceptible to eventual chemical degradation when subject to very high applied voltages thus implying that the number of
tests should be strictly limited. We therefore strongly advise against repeated high voltage isolation testing, but if it is absolutely required, that the voltage be reduced by 20% from
specified test voltage.
www.murata-ps.com
Technical enquiries - email: [email protected], tel: +44 (0)1908 615232
KDC_WPN20RC.C01 Page 2 of 4
WPN20
20W Regulated DC/DC Converter
PERFORMANCE GRAPHS
15V
12V
5V
3V
85
Efficiency (%)
80
75
70
65
60
55
50
10
20
40
50
60
80
EFFICIENCY VS. TEMPERATURE
10
Change in Efficiency (%)
EFFICIENCY VS. OUTPUT LOAD
90
5
100% Load
20% Load
0
-5
-10
-40
100
-15
25
Output Load (% or Rated)
65
110
Tcase (C)
50%Load
EFFICIENCY VS. INPUT VOLTAGE
0.6
Change in Efficiency (%)
OUTPUT RIPPLE VS. INPUT VOLTAGE
10%Load
100%Load
0.4
Normalized Output Ripple
0.2
0
-0.2
-0.4
-0.6
-0.8
-1
LL
Nom
HL
1.4
1.2
1
0.8
0.6
0.4
Vin
LL
Nom
HL
Vin
5 5
3 -trim +trim
TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE
50
Normalized Output Ripple
40
Trim Resistor (K Ohms)
OUTPUT RIPPLE VS. TEMPERATURE
1.2
45
35
30
25
20
15
10
5
1
0.8
0.6
-40
-15
25
65
110
0
10
9
8
7
6
5
4
3
2
1
Percentage Change In Output Voltage
TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE
100
Tcase (C)
12 15 15
+trim -trim trim
90
Trim Resistor (K Ohms)
80
70
60
50
40
30
20
10
0
10
9
8
7
6
5
4
3
2
1
Percentage Change In Output Voltage
www.murata-ps.com
Technical enquiries - email: [email protected], tel: +44 (0)1908 615232
KDC_WPN20RC.C01 Page 3 of 4
WPN20
20W Regulated DC/DC Converter
MECHANICAL DIMENSTIONS
SIDE VIEW
PIN SIDE DOWN
1.590 ± 0.005
(40.39 ± 0.13)
0.425 ± 0.00
(10.80 ± 0.08)
WPN20RxxyzzC
0.150
(3.81)
0.040 ± 0.002
(1.02 ± 0.05)
0.015 ± 0.003
(0.38 ± 0.08)
5
1.990 ± 0.005
(50.55 ± 0.13)
6
1
2
7
PIN CONNECTIONS
8
Function
Pin
1
Singles
Duals
+VIN
+VIN
2
-VIN
-VIN
5
NO PIN
+VOUT
6
+VOUT
OV
7
-VOUT
-VOUT
8
TRIM
TRIM
PIN SIDE UP
Weight: 32g
All pins on a 0.1 (2.54) pitch and within ±0.01 (0.25) of true position.
Unless otherwise stated all dimensions are in inches (mm) ±0.01 (0.25).
Murata Power Solutions, Inc.
11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A.
Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
USA:
Mansfield (MA), Tel: (508) 339 3000, email: [email protected]
Canada:
Toronto, Tel: (866) 740 1232, email: [email protected]
UK:
Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected]
France:
Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected]
Germany: München, Tel: +49 (0)89-544334-0, email: [email protected]
Japan:
Tokyo, Tel: 3-3779-1031, email: [email protected]
Osaka, Tel: 6-6354-2025, email: [email protected]
China:
Shanghai, Tel: +86 215 027 3678, email: [email protected]
Guangzhou, Tel: +86 208 221 8066, email: [email protected]
www.murata-ps.com email: [email protected] ISO 9001 & ISO 14001 REGISTERED
Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other
technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply
the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without
notice.
© 2009 Murata Power Solutions, Inc.
www.murata-ps.com
Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected]
Technical enquiries - email: [email protected], tel: +44 (0)1908 615232
KDC_WPN20RC.C01 Page 4 of 4