Datasheet WPA50R48S025, WPA50R48S022-1, WPA50R48S022, WPA50R48S018-1, WPA50R48S018 Datasheet (CDtechno)

50 Watt Single Output Eighth Brick DC/DC Converter

WPWP

WPWP

WP

A50A50

A50A50

A50

Corporate: www.cdtechno.com

Corporate: www.cdtechno.com
Product: www.cdpoweronline.com

z Industry Standard Footprint & Size -

2.3” x 0.9” x 0.35”
(58.42mm x 22.86mm x 9.0mm)

z High Efficiency - Up To 91%
z Wide Input Voltage Range: 36 – 75V

DC

z Output Voltages: 1.2 V , 1.5V, 1.8V ,

2.2V, 2.5V, 3.3V & 5.0V

z Remote Output Sense
z Remote ON/OFF (Positive or

Negative Logic)

z Output Overcurrent Protection -

Hiccup Mode

z Input Side “L” Filter
z No Minimum Load Required

z Isolation Voltage of 1500 V

DC

z High Reliability
z Fixed Frequency Operation
zz

zz

z Safety per UL/CUL 60950,EN 60950,

Operational Insulation Meets TNV-SELV
Isolation Requirements

z Meets Conducted Emissions Requirements

of FCC Class B and EN55022 Class B with
External Filter

zz

zz

z C&D Technologies, Power Electronics

Division is ISO9001:2000 Certified

The WPA50 Series is a 50 Watt single
output, low-profile DC-DC converter in
an industry standard package of 2.3” x

0.9” x 0.35” (58.42mm x 22.86mm x

9.0mm). The WPA50 uses unique
proprietary technologies to deliver ultra­high efficiencies and excellent thermal
performance. It includes extensive
control and protection features for
maximum flexibility and provides a

versatile solution for a whole range of
applications with its input voltage range
of 36-75 VDC and output voltages
between 1.2VDC and 5.0VDC.
The power dissipation of the WP A50
series is so low that a heat sink is not
required. The product features fast
dynamic response characteristics and
low output ripple critical for low voltage

applications. WPA DC-DC conv erter
modules are certified to UL/CUL 60950,
and VDE to EN60950. It meets CISPR22/
EN55022/FCC15J Class B specs for EMI
levels with external filtering.
This high quality and highly reliable
product is competitively priced and an
ideal solution for distributed power,
telecoms and datacom applications.

NOMINAL RATED

INPUT OUTPUT OUTPUT CURRENT INPUT EFFICIENCY

VOLTAGE VOLTAGE MI N RATED CURRENT (%)

MODEL (V DC)(VDC) LOAD(A) OUTPUT (A) RATED LOAD (A) MIN

WPA50R48S012 48 1.2 0.0 18 0.58 80

WPA50R48S015 48 1.5 0.0 18 0.70 82

WPA50R48S018 48 1.8 0.0 18 0.80 85

WPA50R48S022 48 2.2 0.0 18 0.99 85

WPA50R48S025 48 2.5 0.0 18 1.11 85

WPA50R48S033 48 3.3 0.0 15 1.20 88

WPA50R48S050 48 5.0 0.0 10 1.17 90

PRODUCT SELECTION CHART

Output Short-Circuit Duration Continuous
Internal Power Dissipation As low as 5 Watts
Lead Temperature (soldering, 10 seconds max) +300°C
Continuous Input Voltage 75 VDC
Storage Temperature +125°C
Input to Output Isolation 1500 VDC

ABSOLUTE MAXIMUM RATINGS

z No Heatsinks
z Low Profile and Low Weight
z Thermal Shutdown

SPECIFICATIONS, ALL MODELS

Specifications are at TA = +25°C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified.

ISOLATION

Input/Output Isolation Voltage 1500 2250 VDC
Resistance 10 MΩ
Capacitance 1.5 nF
Leakage Current 240 Vrms, 50Hz 100 µA

OUTPUT

Rated Power WPA50R48S012 22 W

WPA50R48S015 27 W
WPA50R48S018 33 W
WPA50R48S022 40 W
WPA50R48S025 45 W
WPA50R48S033 50 W

WPA50R48S050 50 W
Voltage Setpoint Accuracy 1.0 1.5 % of VNOM
Output Voltage Trim Range -5.0 +8.0 % of VNOM
Temperature Coefficient ±0.002 ±0.005 % /°C
Output Voltage Regulation

Line Regulation Vin = 36V - 75V, Iout = Max 0.30 0.50 %

Load Regulation Vin = 48V, Iout = 0-Max 0.30 0.60 %
Ripple & Noise (NOTE 1) Vin = 48V, < 20Mhz bandwidth 75 mVp-p
Transient Response Step change in output current

(50%-100% Step @ 0.2A/

)

1.2 - 2.5 Vout Vin = 48V 8 % of V

NOM

3.3 - 5.0 Vout Vin = 48V 6 % of VNOM
Turn-On Time Vin = 48V 200 500 mS
Remote Sense Compensation 8%
Overcurrent Protection Vin = 48V 105 140 %

GENERAL

Switching Frequency 380 400 420 KHz
MTTF per ML-HDBK-217 Circuit Stress Method
Ground Benign TA = +25° TBD Hrs

INPUT

OUTPUT

PARAMETER CONDITIONS MIN TYP MAX UNITS

INPUT

Voltage Range Vin = 48V, Io=I Rated 36 48 75 VDC
Reflected Ripple Current Vin = 48V, Io=I Rated 450 600 mApk-pk

Inrush Charge 42 µC
Maximum Input Current Vin=36V

1.2 Vout 0.75 A

1.5 Vout 0.93 A

1.8 Vout 1.10 A

2.2 Vout 1.31 A

2.5 Vout 1.50 A

3.3 Vout 1.60 A

5.0 Vout 1.55 A

INPUT CONTROL

Temperature Shutdown 115 °C
Temperature Hysteresis 5°C
Quiescent Standby Current Vin = 48V 3 4 mA
Power Dissipation No Load, Remote On/Off

Disabled, Vin = 48Vdc 2.00 W
Undervoltage Shutdown 31.50 32.5 35.0 V
Undervoltage Hysteresis 0.50 2 3.00 V

NOTE 1: Measured at 20 MHz bandwidth across a 10µf multi layer ceramic capacitor located approximately 1” from output terminals.

µs

3

WPA50 REV B 6/2003

Product: www.cdpoweronline.com

PERFORMANCE CURVES

Rev B1 of the WPA50 Datasheet will include extensive performance curves and graphs.

.370 [9.40

]

.135 [3.43

]

.

900.010

[22.88

.25

]

2.

300.010

[

58.42

.25

]

.188 [4.78

]

.

000

[0.00

]

000

[

0.00

]

.1

50

[3.81

]

.4

50

[11.43

]

.7

50

[19.05

]

750 [19.05

]

600 [15.24

]

450 [11.43

]

.300 [7.62

]

.150 [3.81

]

150

[

3.81

]

2.150

[

54.61

]

3

8

6

5

BOTTOM VIE

W

(

PIN SIDE

)

Ø

.080 [2.03] 2 Plcs

Ø

.062 [1.57] 2 Plcs

Ø

.040 [1.02] 6 Plc

s

Ø

.060 [1.52] 6 Plc

s

Dimensions are in inches [mm

]

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
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.

Power Electronics Division, Americas

3400 E Britannia Drive, Tucson, Arizona 85706

Tel: [phone] Fax: [phone]

C&D Technologies, EMEA/Asia/Pacific

Milton Keynes MK14 5BU UK

Tel: [phone] Fax: [phone]

MECHANICAL

To Find Model Number

Model Numbers Part Numbers

WPA50R48S012 6064958

WPA50R48S015 6064959

WPA50R48S018 6064960

WPA50R48S022 6064961

WPA50R48S025 6064962

WPA50R48S033 6064963

WPA50R48S050 6064964

WPA50R48S012-1 6064967

WPA50R48S015-1 6064968

WPA50R48S018-1 6064969

WPA50R48S022-1 6064970

WPA50R48S025-1 6064971

WPA50R48S033-1 6064972

WPA50R48S050-1 6064973

ORDERING INFORMATION

WPA5048S y -

Device Family
50 Watt, Single Output,
Eighth Brick, 48VDC Input Range
Model Number
Selected from Product Selection Chart (above)
y = 012 = 1.2V, 015 = 1.5V, 018 = 1.8V, 022 = 2.2V,

025 = 2.5V, 033 = 3.3V, 050 - 5.0V,
Remote On/Off Logic
No Number = Positive Logic
1 = Negative Logic

1 +Vin
2 Remote On/Off
3 -Vin
4 -Vout
5 - Sense
6 Trim
7 + Sense
8 +Vout

PIN FUNCTIONS

NOTES:

Pin placement tolerance:

+.010

Pin material: Brass

Pin Finish: Tin/Lead over Nickel

Converter weight: [16g]