Document
EWS SERIES 5 WATT
DESCRIPTION EWS DC/DC converters offer excellent regulation and isolation in an industry standard package. Available in 5V or 12V input versions, the EWS is ideal for industrial, datacom, or telecom applications. The EWS features short circuit protection, six-sided shielding, and 500 VDC isolation. Please see the EWD series for dual output applications. • 5V and 12V Inputs • Input Pi Filter and 6-Sided Shielding • Regulated Outputs • 500V Isolation
EFFICIENCY %
FEATURES • Industry Standard Package • Industry Standard Pinout • 85°C Case Operation • Short Circuit Protection
Efficiency vs. Load (12V Input)
90 85 80 75 70 65 60 55 50
EFF. EWS1212
EFF. EWS1215
TECHNICAL SPECIFICATIONS
Input Voltage Range 5 VDC Nominal 12 VDC Nominal Reflected Ripple Reverse Input Current 4.5 - 9 VDC 9 - 18 VDC 20% Iin Max. 100% Iin Max.
45 10 20 30 40 50 60 70 80 90 10
LOAD %
General Output
Setpoint Accuracy ±5% ±1.5% Vout ±2.5% Vout 10% 25% Iout 1% Vout 500 µs 0.02%/°C 150 mV Continuous 130%
Switching Frequency Isolation Input - Output Isolation Resistance - Input to Output Standard Case Operating Range Storage range Humidity Max., Non-Condensing Vibration, 3 Axes, 5 Min Each Safety Weight (approx.)
200 kHz 500 VDC 109 Ohms -25 to +85°C -40 to +125°C 95% 5 g, 10 - 55 Hz UL, cUL, TUV 1.4 oz.
High Density - Board Mounted Power Division
Line Regulation Vin Min. - Vin Max., Iout Rated Load Regulation Iout Min. - Iout Max., Vin Nom. Minimum Output Current Dynamic Regulation, Loadstep Pk Deviation Settling Time Temperature Coefficient Ripple And Noise, 20 MHz BW Short Circuit Protection 1 Current Limit
Notes
1 Converter will auto-restart once fault has been removed. Specifications typically at 25°C, normal line, and full load, unless otherwise stated. Soldering Conditions: I/O pins, 260°C, ten seconds; fully compatible with commercial wave-soldering equipment. Safety: Agency approvals may vary from model to model. Please consult factory for specific model information.
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EWS SERIES 5 WATT
Powering Communications and Technology
MODELS - (See the last page of Section for options.)
Selection Chart
Model EWS0505 EWS0512 EWS1205 EWS1212 EWS1215 Vin (Volts) 5 5 12 12 12 Vin Range (Volts) 4.5 - 9.0 4.5 - 9.0 9.0 - 18.0 9.0 - 18.0 9.0 - 18.0 Iin Max.* (Amps) 1.80 2.10 0.85 0.95 0.91 Vout (Volts) 5 12 5 12 15 Iout Rated (Amps) 1.00 0.50 1.00 0.50 0.40 Ripple & Noise Pk-Pk (mV) 150 150 150 150 150 Efficiency Typ. ** 70% 73% 73% 80% 82%
* Maximum input current at minimum input voltage, maximum rated output power. ** At nominal Vin, rated output.
MECHANICAL DRAWING
1.00" (25.4mm)
0.18" MIN. (4.6mm)
0
3
4
5
2.00" (50.8mm) 1 0.800"(20.3mm) 2
DIA 0.040" (1.0mm)
1.40"(35.6mm) 0.800" (20.3mm) 0.500" (12.7mm) 0.40" (10.2mm)
0 0.300" -0.10" (7.6mm) (-2.5mm)
0.400" (10.2mm)
High Density - Board Mounted Power Division
BOTTOM VIEW
Thermal Impedance Natural Convection 15.4 °C/W 100 LFM 12.2 °C/W 200 LFM 9.3 °C/W 300 LFM 7.4 °C/W 400 LFM 6.4 °C/W
Note: Thermal impedance data is dependent on many environmental factors. The exact thermal performance should be validated for specific application.
Pin 1 2 3 4
Function +Vin -Vin +Vout - Vout
Tolerances Inches: .XX ± 0.040 .XXX ± 0.010 Pin: ± 0.002 Case: +0.04, -0.00 (Millimeters) .X ± 1.0 .XX ± 0.25
± 0.05 +1.0, -0.0
(Dimensions as listed unless otherwise specified.)
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OPTIONS
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When ordering equipment options, use the following suffix information. Select the option(s) that you prefer and add them to the model number. Example ordering options are located below the options table.
OPTIONS Negative Logic SUFFIX N APPLICABLE SERIES HAS, HBD, HBS, HES, HLS, LES, QBS, QES, QLS, TES, TQD HAS, HBD, HBS, HES, HLS, QBS, QES, QLS XWS, XWD, XWT IAS, LES IAD, IAS, LES, SMS IAS, LES SMS Encapsulated EWS, IWS, OWS Standard Pin Length is 0.180" (4.6mm) 8 9 1H 1V 2H 2V 3H 3V All Units (Except SMS) All Units (Except SMS) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) All Units (Except DIP, HLS, HLD, QLS, SIP, SM TLD, and TKD Packages) REMARKS TTL "Low" Turns Module ON TTL "High" Turns Module OFF
Lucent Compatible Trim Terminal Strip Trim Enable Trim and Enable Current Share Headerless PIN LENGTH AND HEATSINK OPTIONS 0.110" (2.8mm) Pin Length 0.150" (3.8mm) Pin Length 0.24" (6.1mm) Horizontal Heatsink 0.24" (6.1mm) Vertical Heatsink 0.45" (11.4mm) Horizontal Heatsink 0.45" (11.4mm) Vertical Heatsink 0.95" (24.1mm) Horizontal Heatsink 0.95" (24.1mm) Vertical Heatsink
T TS 1 2 3 4 Y
Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad Includes Thermal Pad
High Density - Board Mounted Power Division
Includes Thermal Pad
.