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WPA50 WPA50
Corporate: www.cdtechno.com Corporate: www.cdtechno.com Product: www.cdpoweronline.com
50 Watt Single Output Eighth Brick DC/DC Converter
Industry Standard Footprint & Size 2.3" x 0.9" x 0.35" (58.42mm x 22.86mm x 9.0mm) High Efficiency - Up To 91% Wide Input Voltage Range: 36 - 75VDC Output Voltages: 1.2 V, 1.5V, 1.8V, 2.2V, 2.5V, 3.3V & 5.0V Remote Output Sense Remote ON/OFF (Positive or Negative Logic) Output Overcurrent Protection Hiccup Mode Input Side "L" Filter No Minimum Load Required Isolation Voltage of 1500 VDC High Reliability Fixed Frequency Operation Safety per UL/CUL 60950, EN 60950, Operational Insulation Meets TNV-SELV Isolation Requirements Meets Conducted Emissions Requirements of FCC Class B and EN55022 Class B with External Filter C&D Technologies, Power Electronics Division is ISO9001:2000 Certified No Heatsinks Low Profile and Low Weight Thermal Shutdown
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 WPA50 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 converter 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.
PRODUCT SELECTION CHART
NOMINAL INPUT VOLTAGE MODEL WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 (VDC) 48 48 48 48 48 48 48 RATED OUTPUT VOLTAGE (VDC) 1.2 1.5 1.8 2.2 2.5 3.3 5.0 OUTPUT CURRENT MIN RATED LOAD(A) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 OUTPUT (A) 18 18 18 18 18 15 10 INPUT CURRENT RATED LOAD (A) 0.58 0.70 0.80 0.99 1.11 1.20 1.17 EFFICIENCY (%) MIN 80 82 85 85 85 88 90
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration Internal Power Dissipation Lead Temperature (soldering, 10 seconds max) Continuous Input Voltage Storage Temperature Input to Output Isolation Continuous As low as 5 Watts +300C 75 VDC +125C 1500 VDC
SPECIFICATIONS, ALL MODELS
Specifications are at TA = +25C, Airflow = 300LFM (1.5m/s) at nominal input voltage unless otherwise specified.
PARAMETER
INPUT Voltage Range Reflected Ripple Current Inrush Charge Maximum Input Current 1.2 Vout 1.5 Vout 1.8 Vout 2.2 Vout 2.5 Vout 3.3 Vout 5.0 Vout INPUT CONTROL Temperature Shutdown Temperature Hysteresis Quiescent Standby Current Power Dissipation Undervoltage Shutdown Undervoltage Hysteresis ISOLATION Input/Output Isolation Voltage Resistance Capacitance Leakage Current OUTPUT Rated Power
CONDITIONS
Vin = 48V, Io=I Rated Vin = 48V, Io=I Rated
MIN
36
TYP
48 450 42
MAX
75 600
UNITS
VDC mApk-pk C A A A A A A A
Vin=36V 0.75 0.93 1.10 1.31 1.50 1.60 1.55 115 5 4 2.00 35.0 3.00
INPUT
Vin = 48V No Load, Remote On/Off Disabled, Vin = 48Vdc 31.50 0.50
3
C C mA W V V
32.5 2
240 Vrms, 50Hz WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 -5.0
1500 10 1.5 100 22 27 33 40 45 50 50 1.0 0.002
2250
VDC M nF A W W W W W W W % of VNOM % of VNOM %/C % % mVp-p
OUTPUT
Voltage Setpoint Accuracy Output Voltage Trim Range Temperature Coefficient Output Voltage Regulation Line Regulation Load Regulation Ripple & Noise (NOTE 1) Transient Response 1.2 - 2.5 Vout 3.3 - 5.0 Vout Turn-On Time Remote Sense Compensation Overcurrent Protection GENERAL Switching Frequency MTTF per ML-HDBK-217 Ground Benign
1.5 +8.0 0.005 0.50 0.60 75
Vin = 36V - 75V, Iout = Max Vin = 48V, Iout = 0-Max Vin = 48V, < 20Mhz bandwidth Step change in output current (50%-100% Step @ 0.2A/ s) Vin = 48V Vin = 48V Vin = 48V Vin = 48V 105 380 Circuit Stress Method TA = +25
0.30 0.30
200
8 6 500 8 140 420
% of VNOM % of VNOM mS % % KHz Hrs
400 TBD
NOTE 1: Measured at 20 MHz bandwidth across a 10f multi layer ceramic capacitor located approximately 1" from output terminals.
PERFORMANCE CURVES
Rev B1 of the WPA50 Datasheet will include extensive performance curves and graphs.
Product: www.cdpoweronline.com
WPA50 REV B 6/2003
3
MECHANICAL
PIN FUNCTIONS
.370 [9.40]
MAX A
.135 [3.43] .188 [4.78]
O.060 [1.52] 6 Plcs O.040 [1.02] 6 Plcs
O.080 [2.03] 2 Plcs O.062 [1.57] 2 Plcs
2.300 .010 [58.42 .25]
1 2 3 4 5 6 7 8
NOTES:
+Vin Remote On/Off -Vin -Vout - Sense Trim + Sense +Vout
.750 [19.05] .450 [11.43] .150 [3.81]
Pin placement tolerance: +.010
3 4 5 2 6 7 1 8 .750 [19.05] .600 [15.24] .450 [11.43] .300 [7.62] .150 [3.81]
Pin material: Brass Pin Finish: Tin/Lead over Nickel Converter weight: [16g]
.900 .010 [22.88 .25] .000 [0.00]
.000 [0.00]
.150 [3.81]
Dimensions are in inches [mm]
ORDERING INFORMATION
To Find Model Number
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
Model Numbers
WPA50R48S012 WPA50R48S015 WPA50R48S018 WPA50R48S022 WPA50R48S025 WPA50R48S033 WPA50R48S050 WPA50R48S012-1 WPA50R48S015-1 WPA50R48S018-1 WPA50R48S022-1 WPA50R48S025-1 WPA50R48S033-1 WPA50R48S050-1
2.150 [54.61]
BOTTOM VIEW (PIN SIDE)
Part Numbers
6064958 6064959 6064960 6064961 6064962 6064963 6064964 6064967 6064968 6064969 6064970 6064971 6064972 6064973
Power Electronics Division, Americas 3400 E Britannia Drive, Tucson, Arizona 85706 Tel: 800.547.2537 Fax: 520.295.4197
C&D Technologies, EMEA/Asia/Pacific Milton Keynes MK14 5BU UK Tel: +44 (0)1908 615232 Fax: +44 (0)1908 617545
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.

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