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Product Data Sheet
5 WATT REGULATED SMALL PACKAGE DC/DC CONVERTER
WP05R
FEATURES
SMALL PACKAGE SIZE: 1" X 2" INDUSTRY STANDARD PINOUT SURFACE MOUNT DEVICES (SMD) LOW-COST ALTERNATE SOURCE CONTINUOUS SHORT CIRCUIT PROTECTION UL1950 RECOGNITION (SOME MODELS PENDING) MEETS FCC CLASS B
APPLICATIONS
TELECOMMUNICATION EQUIPMENT BATTERY POWERED SYSTEMS PORTABLE INSTRUMENTS PROCESS CONTROL EQUIPMENT TRANSPORTATION EQUIPMENT DISTRIBUTED POWER SYSTEMS SPACE-CRITICAL APPLICATIONS
DESCRIPTION
The WP05R Series is a family of high performance DC/DC converters that offer high efficiency and regulated outputs over a 2:1 input voltage range of either 18-36VDC or 3672 VDC. Surface mount devices and manufacturing technology make it possible to offer performance equivalent to competition at a lower cost. A self oscillating flyback topology coupled with a rugged MOSPOWER transistor are used to produce a highly reliable product with a minimum parts count. The internal body diodes of these FETS protect the unit against input voltage reversal. An external fuse is required to limit the body diode current to 2 amps. The WP05R Series offers low noise (approximately 50 to 75mVp-p) without the addition of an external capacitor. The series is also 6-sided shielded, further reducing system noise. This shield is connected to -VIN. No external heatsink is required for the WP05R Series to supply its rated 5 watts. With a minimum amount of airflow, the temperature range may be extended from 70C to 85C. (See derating curve.) The package of the WP05R Series is plastic. This eliminates the layout precautions required by metal enclosed devices. The encapsulant material is rated UL94V-0 for flammability and offers excellent heat transfer characteristics. Internal circuitry provides continuous short-circuit protection and automatic restart after the short is removed.
3400 E Britannia Drive
WP05R 5/98 REV B
Tucson, Arizona 85706
Phone: 520.295.4100
Fax: 520.770.9369
Internet: http://www.cdpowerelectronics.com
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ELECTRICAL SPECIFICATIONS
Specifications typical at TA = +25C, nominal input voltage, rated output current unless otherwise specified. NOMINAL INPUT VOLTAGE MODEL WP05R24S03 WP05R24S05 WP05R24S12 WP05R24S15 WP05R24D05 WP05R24D12 WP05R24D15 WP05R48S03 WP05R48S05 WP05R48S12 WP05R48S15 WP05R48D05 WP05R48D12 WP05R48D15 (VDC) 24 24 24 24 24 24 24 48 48 48 48 48 48 48 RATED OUTPUT VOLTAGE (VDC) 3.3 5 12 15 5 12 15 3.3 5 12 15 5 12 15 OUTPUT CURRENT MIN LOAD (mA) 25 50 21 17 25 10 8 25 50 21 17 25 10 8 RATED LOAD (mA) 1500 1000 417 333 500 208 167 1500 1000 417 333 500 208 167 INPUT CURRENT MIN LOAD (mA) 20 20 20 20 20 20 20 13 13 13 13 13 13 13 RATED LOAD (mA) 300 265 255 250 265 255 250 150 135 127 125 135 127 125 EFFICIENCY (%) 70 78 82 83 78 82 83 70 78 82 83 78 82 83
NOTE: Other input and output voltages may be available. Please consult factory.
COMMON SPECIFICATIONS
Specifications typical at TA = +25C, nominal input voltage, rated output current unless otherwise specified. PARAMETER INPUT Voltage Range Reflected Ripple Current ISOLATION Rated Voltage Test Voltage Resistance Capacitance Leakage Current OUTPUT Rated Power Voltage Setpoint Accuracy Singles Duals Temperature Coefficent Line Regulation Singles Duals Load Regulation Singles Duals Ripple and Noise 24VIN Models 48VIN Models 5V Output Models Other Models Transient Response Overvoltage Protection Threshold 500 500 10 VISO= 240VAC, 60Hz 470 50 5.0 1 2 0.02 Low Line to High Line 5 1 Min Load to Rated Load 25 1 BW = 20Hz to 10MHz BW = 20Hz to 10MHz BW = 20Hz to 2MHz BW = 20Hz to 2MHz Rated Load to Min Load Min Load to Rated Load 3.3V Output 5V Output 12V Output 15V Output 100 50 5 10 10 10 3.9 6.8 15 18 140 30 Ground Benign, Circuit Stress Method TA = +25C TA = +70C TA = +85C Environmental Stress = 1.0 TA = +25C TA = +70C TA = +85C No Power Derating -40 -40 -55 636,843 199,000 122,009 1,079,617 205,055 98,839 mV % mVp-p mVp-p mVrms mVrms mS mS VDC VDC VDC VDC KHz g Hr Hr Hr Hr Hr Hr mV % 2 4 pF Arms W % % %/C CONDITIONS MIN TYP MAX UNITS
18 36
24 48 20
36 72 35 VDC Vpk
VDC VDC mAp-p
60 Hz, 10 Seconds
G
GENERAL Switching Frequency Package Weight MTTF per MIL-HDBK-217 Revision F
MTTF per Bellcore TR-NWT-000322 Issue 4, September, 1992
TEMPERATURE Specification Operation Storage
+70 +100 +110
C C C
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WP05R 5/98 REV B
ABSOLUTE MAXIMUM RATINGS
Output Short-Circuit Duration.............................................................Continuous Case Temperature .....................................................................................100C Lead Temperature (soldering, 10 seconds max).....................................+300C
ORDERING INFORMATION
WP05R Device Family Indicates Wide Input Power 5 Watt Regulated Unit Model Number Selected From Table of Electrical Characteristics Where: xx = Input Voltage y = Number of Outputs (Single "S", Dual "D") zz = Output Voltage Package Option Screening Option xxyzz N /H
MECHANICAL
TOP VIEW
2.0000.015" (50.800.38)
SIDE VIEW
0.4000.10" (10.16) 1.0000.015" (25.40.38) 0.015.005" (0.38)
0.0400.003" (1.020.08)
0.170" Min. (4.32)
NOTES: All dimensions are in inches (millimeters).
+VOUT
GRID: 0.100 inches (2.54 millimeters)
* Common pins are not present on single output
+VIN
models.
* COM
-VIN
Product marked with specific model ordered, date code, job code. PIN PLACEMENT TOLERANCE: 0.015 inches. 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 the outer shell of the unit have UL94V-0 ratings. Lead material is brass with a solder plated surface to allow ease of solderability.
-VOUT
BOTTOM VIEW
APPLICATION NOTES
POWER DERATING 6
500 LFM AIRFLOW
FUSING
For maximum safety and system protection, a Buss PC-TRON, PCB 2A fuse or equivalent should be used in series with the input.
5
Output Power (Watts)
4
3 2.5W 2
NATURAL CONVECTION
1
0 -25 25 75 100 70C 85C Ambient Temperature (C) 50 125
WP05R 5/98 REV B
Page 3
TYPICAL PERFORMANCE CURVES
TA = +25C, nominal input voltage, rated load, recommended external components applied, unless otherwise specified.
EFFICIENCY vs INPUT VOLTAGE +2%
Change in Efficiency (%) Change in Efficiency (%)
EFFICIENCY vs OUTPUT LOAD +9%
Change in Efficiency (%)
EFFICIENCY vs TEMPERATURE +10% +5% TYP -5% -10% -40
TYP -2% -4% -6% Low Line
+6% +3% TYP -3%
Nom Line
Vin
High Line
25%
44%
63%
82%
100%
-5
+25
+55
+85
Output Load (% of Rated)
TA (C)
OUTPUT NOISE vs INPUT VOLTAGE
OUTPUT NOISE vs OUTPUT LOAD +30%
Change in Output Noise (%) Change in Output Noise (%)
OUTPUT NOISE vs TEMPERATURE +150% +100% +50% TYP -50%
+20%
Change in Output Noise (%)
+10% TYP -10% -20% Low Line Nom Line
Vin
TYP -30% -60% -90% 25%
High Line
44%
63%
82%
100%
-40
-5
+25
+55
+85
Output Load (% of Rated)
TA (C)
REFLECTED RIPPLE CURRENT vs INPUT VOLTAGE
Change in Reflected Ripple Current (%) Change in Reflected Ripple Current (%)
REFLECTED RIPPLE CURRENT vs OUTPUT LOAD
Change in Reflected Ripple Current (%)
REFLECTED RIPPLE CURRENT vs TEMPERATURE +300% +200% +100% TYP
+150% +100% +50% TYP -50% Low Line Nom Line
Vin
+30% TYP -30% -60% -90% 25% 44% 63% 82% 100%
-100% -40 -5 +25 +55 +85
High Line
Output Load (% of Rated)
TA (C)
The information provided herein is believed to be reliable; however, C&D TECHNOLOGIES assumes no responsibility for inaccuracies or omissions. C&D TECHNOLOGIES assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. C&D TECHNOLOGIES does not authorize or warrant any C&D TECHNOLOGIES product for use in life support devices/systems or in aircraft control applications.
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WP05R 5/98 REV B

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