Datasheet WPN20R48S15, WPN20R48S12, WPN20R48S05, WPN20R48S03, WPN20R48D15 Datasheet (CDtechno)

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WPN20R

20 Watt Regulated DC/DC Converter

The WPN20R series is a family of
high performance DC/DC converters
available in three input voltage ranges
of 9-18V, 18-36V and 33-75V. The unit
is housed in a space saving aluminum
shell and combines low cost with high
performance across all line and load
conditions. The 300KHz switching
frequency and forward converter
topology provide excellent performance

Specifications are at TA = +25°C nominal input voltage, rated output current unless otherwise specified.

 Operating Temperature Range:

-40°C to +100°C

 Industry Standard Pinout

 Input and Output Filtering

 Low Profile Shell

 Single and Dual Outputs

across all line and load conditions in a
space saving package. Other features
include: full regulation down to zero
load, under voltage lock-out, internal
temperature shutdown, soft start, remote
on/off and over current protection.

An output trim feature is provided,
allowing the user to compensate for long
line lengths. The WPN20R Series is

PRODUCT SELECTION CHART

 High Efficiency

 Remote On/Off Function

 Output Trim Function

 Zero Load Operation

 EN 60950, UL1950, C-UL,

VDE Agency Approvals

assembled using a fully automated
process incorporating 100% surface
mounted components for increased
reliability.

Applications include: Telecom­munications, Battery Powered Sytems,
Process Control Equipment,
Transportation Equipment and
Distributed Power Systems.

NOMINAL RATED OUTPUT CURRENT (A) INPUT

INPUT OUTPUT MIN NOM CURRENT EFFICIENCY

MODEL* VOLTAGE (VDC) VOLTAGE (VDC) LOAD LOAD NOM LOAD (%)

WPN20R12S03 12 3.3 0.0 6.00 2.00 82
WPN20R12S05 12 5.0 0.0 4.00 2.00 84
WPN20R12S12 12 12.0 0.0 1.66 2.00 86
WPN20R12S15 12 15.0 0.0 1.33 2.00 86
WPN20R12D05 12 ±5.0 0.0 ±2.00 2.00 84
WPN20R12D12 12 ±12.0 0.0 ±0.83 2.00 86
WPN20R12D15 12 ±15.0 0.0 ±0.67 2.00 86
WPN20R24S03 24 3.3 0.0 6.00 1.00 83
WPN20R24S05 24 5.0 0.0 4.00 1.00 84
WPN20R24S12 24 12.0 0.0 1.66 1.00 87
WPN20R24S15 24 15.0 0.0 1.33 1.00 87
WPN20R24D05 24 ±5.0 0.0 ±2.00 1.00 85
WPN20R24D12 24 ±12.0 0.0 ±0.83 1.00 87
WPN20R24D15 24 ±15.0 0.0 ±0.67 1.00 87
WPN20R48S03 48 3.3 0.0 6.00 0.50 83
WPN20R48S05 48 5.0 0.0 4.00 0.50 85
WPN20R48S12 48 12.0 0.0 1.66 0.50 88
WPN20R48S15 48 15.0 0.0 1.33 0.50 86
WPN20R48D05 48 ±5.0 0.0 ±2.00 0.50 85
WPN20R48D12 48 ±12.0 0.0 ±0.83 0.50 87
WPN20R48D15 48 ±15.0 0.0 ±0.67 0.50 87

NOTE: Other input to output voltages may be available. Please consult factory.

WPN20R REV A 3/2000 Page 1

SPECIFICATIONS, ALL MODELS

Specifications are at TA = +25°C nominal input voltage, rated output current unless otherwise specified.

PARAMETER CONDITIONS MIN TYP MAX UNITS

INPUT

Voltage Range 9 12 18 VDC

18 24 36 VDC
33 48 75 VDC

Reflected Ripple Current All Input Ranges 50 mApk-pk

INPUT CONTROL

Temperature Shutdown Case 105 115 °C
Temperature Hysteresis 10 °C
Quiescent Standby Current Current Into + V
Undervoltage Control See Attached Plots

OUTPUT

ISOLATION
Rated Voltage 1500 V
Test Voltage 60Hz, 10 Seconds 1500 VDC
Resistance 10 GW
Capacitance 400 pF
Leakage Current 30 mArms
Rated Power 20 W
Voltage Setpoint Accuracy ±1.5 %
Temperature Coefficient ±0.005 %/°C
Line Regulation
Singles High Line to Low Line ±0.1 %
Duals High Line to Low Line ±0.5 %
Load Regulation
Singles Mn Load to Nom. Load ±0.5 %
Duals Mn Load to Nom. Load ±2.0 %
Ripple & Noise
Single Outputs BW = 5Hz to 20MHz 60 100 mVp-p
Dual Outputs BW = 5Hz to 20MHz 50 100 mVp-p
Output Adjust Range See Attached Plots

GENERAL OUTPUT INPUT

Short Circuit and Overcurrent Protection Continuous
Max Capacitive Load 550 mF/A

GENERAL

Switching Frequency 300 KHz
MTTF per ML-HDBK-217 Circuit Stress Method
Ground Benign TA = +25° Unmodified Database 1,400,000 Hr
Package Weight 32 g
TEMPERATURE
Specification Case -40 + 85 °C
Operation Case -40 + 85 °C
Storage -55 +125 °C

IN 810mA

DC

REMOTE ON/OFF CONTROL

Logic Compatibility .............................................. Open Collector TTL

EC On .............................................................................. Open Circuit

EC Off ...................................................................................... < 0.7V

Shutdown Idle Current ............................................................... 8mA

ORDERING INFORMATION

WPN20R XXYZZ

Device Family

20W Regulated DC/DC Unit

Model Number

xx = Input Range, e.g. 48V
y = Number of Outputs (S=single; D=dual)
zz = Output Voltage, e.g. ‘05’ for 5V

WPN20R REV A 3/2000Page 2

PIN SIDE DOWN

MECHANICAL

SIDE VIEW

0.425 + 0.00

+ 0.08)

(10.80

WPN20Rxxyzz

1.590 + 0.005

(40.39 + 0.13)

1.990

+ 0.005

+ 0.13)

(50.55

SIMPLIFIED CIRCUIT DIAGRAM

1

2

3

4

0.015

(0.38

0.040

(1.02

+ 0.003

+ 0.08)

+ 0.002

+ 0.05)

PIN SIDE UP

0.150

(3.81)

PIN CONNECTIONS

Pin Function

Number Singles Duals

1 +VIN +VIN

5

2 -VIN -VIN
3 NO PIN NO PIN
4 Remote On/Off Remote On/Off

6

5 NO PIN +VOUT
6 +VOUT COMMON
7 -VOUT -VOUT
8 TRIM TRIM

7

NOTES:

All dimensions are in inches (millimeters).
GRID: 0.100 inches (2.54 millimeters)

8

Pin Placement: Tolerance: ±0.015
Marked with: specific model ordered, date code,
job code.
MATERIAL: Units are encapsulated in a low
thermal resistance molding compound which
has excellent chemical resistance, 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 brass with a solder plated surface to allow
ease of solderability.

THERMAL DERATING CURVE

HYSTERESIS GRAPH

100

80

60

40

20

0

Percentage of Rated Output Load (%)

-40 0 85 95 100 105 110 115 120 130

HYSTERESIS GRAPH

Undervoltage Lockout Threshold Voltages

Nominal Input Shutdown Low Shutdown High
Voltage Range Voltage (V1) Voltage (V2)

12 7 8.8
24 15.5 17
48 30 33

Specifications typical at TA=25°C, rated output current.

Ambient

Case

Temperature (C)

OFF ON

WPN20R REV A 3/2000 Page 3

PERFORMANCE GRAPHS

90

85

80

75

70

65

Efficiency (%)

60

55

50

10 20 40 50 60 80 100

EFFICIENCY VS. OUTPUT LOAD

Output Load (% or Rated)

0.6

0.4

0.2

0

-0.2

-0.4

-0.6

Change in Efficiency (%)

-0.8

-1
LL Nom HL

EFFICIENCY VS. INPUT VOLTAGE

Vin

TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE

50

45

40

35

30

25

20

15

Trim Resistor (K Ohms)

10

5

0

1098 76 5 432 1

Percentage Change In Output Voltage

50%Load

10%Load

100%Load

5 5

3 -trim +trim

TRIM RESISTOR VS. OUTPUT VOLTAGE CHANGE

12 15 15

100

90

80

70

60

50

40

30

Trim Resistor (K Ohms)

20

10

0

10 9 8 7 6 5 4 3 2 1

Percentage Change In Output Voltage

+trim -trim trim

15V
12V

5V
3V

10

10

5

0

-5

-5

Change in Efficiency (%)

-10

-10

-40 -15 25 65 110

1.4

1.2

1

0.8

Normalized Output Ripple

0.6

0.4
LL Nom HL

1.2

1

0.8

Normalized Output Ripple

0.6

-40 -15 25 65 110

EFFICIENCY VS. TEMPERATURE

5

100% Load

0

20% Load

Tcase (C)

OUTPUT RIPPLE VS. INPUT VOLTAGE

Vin

OUTPUT RIPPLE VS. TEMPERATURE

Tcase (C)

Power Electronics Division, United States

3400 E Britannia Drive, Tucson, Arizona 85706

Tel: [phone] Fax: [phone]

Any data, prices, descriptions or specifications presented herein are subject to revision by C&D Technologies, Inc. without notice. While such information is believed to
be accurate as indicated herein, C&D Technologies, Inc. makes no warranty and hereby disclaims all warranties, express or implied, with regard to the accuracy or

Tel: [phone] Fax: [phone]

C&D Technologies, (NCL)

Milton Keynes MK14 5BU UK

completeness of such information. Further, because the product(s) featured herein may be used under conditions beyond its control, C&D Technologies, Inc. hereby
disclaims all warranties, either express or implied, concerning the fitness or suitability of such product(s) for any particular use or in any specific application or arising from
any course of dealing or usage of trade. The user is solely responsible for determining the suitability of the product(s) featured herein for user’s intended purpose and
in user’s specific application. C&D Technologies, Inc. does not warrant or recommend that any of its products be used in any life support or aviation or aerospace
applications.

WPN20R REV A 3/2000Page 4