VKA75xSC Series VKA75xSC Series DC/DC converters present economic
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Watt Single Contact Factory Replacement Watt Single Output Half Brick DC/DC Converter Modelg
VKA75xSC Series
VKA75xSC Series DC/DC converters present economical practical solution distributed power system architectures which require high power density efficiency while maintaining system modularity upgradeability. With ability operate over wide input voltage range volts, these modules ideal battery backup applications common todays' telecommunication electronic data processing applications. output fully isolated from input, allowing variety polarity grounding configurations. VKA75xSC's proprietary control circuitry responds 50-100% load steps 100mSeconds within nominal Vout. patented fixed frequency architecture combined with surface mount technology results compact, efficient reliable solution DC/DC conversion requirements.
FEATURES
RoHS Compliant 18-36 Input Range High Efficiency: Typical 100mS Transient Response 50-100% Load Step Fixed-Frequency Operation Remote Sense Operation +100°C Baseplate Temperature Primary Remote On/Off, Choice Pos/Neg Logic Adjustable Output Voltage Continuout Short-Circuit Protection Thermal Shutdown Case Ground UL/CUL 60950, EN60950
PRODUCT SELECTION CHART
MODEL VKA75LS02C VKA75LS03C VKA75LS05C VKA75LS12C VKA75LS15C VKA75LS24C VKA75MS02C VKA75MS03C VKA75MS05C VKA75MS12C VKA75MS15C VKA75MS24C INPUT VOLTAGE 18-36Vdc 18-36Vdc 18-36Vdc 18-36Vdc 18-36Vdc 18-36Vdc 33-75Vdc 33-75Vdc 33-75Vdc 33-75Vdc 33-75Vdc 33-75Vdc VOUT (VDC) 2.0V 3.3V 5.0V 12.0V 15.0V 24.0V 2.0V 3.3V 5.0V 12.0V 15.0V 24.0V IOUT 15.0 15.0 15.0 15.0 15.0 15.0 EFFICIENCY
THROUGH-HOLE SOLDERING INFORMATION
These devices intended wave soldering manual soldering. They intended subject surface mount processes under circumstances. normal wave soldering process used with these devices where device subjected maximum wave temperature 260°C period more than seconds. Within this time temperature range, integrity device's plastic body will compromised internal temperatures within converter will exceed 175°C. Care should taken control manual soldering limits identical that wave soldering.
full details www.murata-ps.com/rohs
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Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
MCD_VKA75C Series.D01 Page
Watt Single Output Half Brick DC/DC Converter
SPECIFICATIONS, MODELS
Specifications TCASE +40°C nominal input voltage unless otherwise specified.
PARAMETER
INPUT Voltage Range VKA75LS VKA75MS Maximum Input Current VKA75LS VKA75MS Reflected Ripple Current Input Ripple Rejection Load Input Current LS/MS
VKA75xSC Series
UNITS
CONDITIONS
16VDC 27VDC Peak Peak 1KHz
INPUT
50/100 3.6/4.8 0.18/0.4 0.520 0.360
Power Dissipation LS/MS Load Standby, Primary On/Off Disabled LS/MS Inrush Charge VINmax. VKA75LS VKA75MS Quiescent Operating Current Primary On/Off Disabled
PARAMETER
OUTPUT Rated Power point Accuracy Line Regulation Load Regulation Output Temperature Drift Output Ripple, Output Current Limit Inception Output Short-Circuit Current Output Overvoltage Limit Transient Response Peak Deviation Settling Time
CONDITIONS
UNITS
%/°C VOUT, lOUT, lOUT, VOUT,
OUTPUT
High Line Line Load Rated Load 20MHz test 100% Load Step di/dt 1.0A/Sec VOUT, Nominal Output
0.02 ±.02 130% 120% 125%
0.05
150% 150% 135%
PARAMETER
ISOLATION Input Output Input Baseplate Output Baseplate Resistance Capacitance Leakage Current GENERAL Efficiency, Line, Load, Temp. Switching Frequency Remote Sense Compensation Output Voltage Adjust Range Remote On/Off Control Inputs Primary Sink Current-Logic Vlow Vhigh Turn-on Time Weight TEMPERATURE Operation/Specification Storage Shutdown Temperature Thermal Impedance, case-ambient Lead Solder Temperature
CONDITIONS
Peak Test Seconds
1500 1500
UNITS
VISO 240VAC, 60Hz
2000
GENERAL
higher(4) Open Collector/Drain
-50% +25%
VOUT,
Within Rated Output
10.0
Open Collector 12.5 (3.0) +100 +125 +115 +300
mSec (oz.) °C/W
Case Temperature Case Temperature Case Temperature Seconds
+100
NOTES: Typical Performance Curves, page Continuous Mode graphs Efficiency Output Load, VIN, TCASE 3.3V Models Limited Trim Down Range Consult Factory Details
www.murata-ps.com
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
MCD_VKA75C Series.D01 Page
Watt Single Output Half Brick DC/DC Converter
VKA75xSC Series
TCASE +40°C nominal input voltage unless otherwise specified.
TYPICAL PERFORMANCE CURVES
Power Dissipation
Ambient Temperature (°C)
VKA75 xSzz Device Family Indicates Watt Regulated Unit Model Number Selected from Table Electrical Characteristics Where: Input Voltage 24VDC; 48VDC) Output Voltage (03=3.3V, 05=5V, etc.) Lead Length 0.200" Number 0.145" 0.110" Remote On-Off Logic: Positive Number Negative RoHS Compliant model configurations available. following defined active models: VKA75LS05-1C VKA75LS05C VKA75LS12-1C VKA75LS12C VKA75LS15C VKA75LS24C VKA75MS03C VKA75MS05C VKA75MS12C VKA75MS24C
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ORDERING INFORMATION
Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
MCD_VKA75C Series.D01 Page
Watt Single Output Half Brick DC/DC Converter
MECHANICAL
NOTES: dimensions inches (millimeters).
0.530 [13.46] 0.20 [5.1]
VKA75xSC Series
PLACEMENT TOLERANCE: 0.005" MECHANICAL TOLERANCE: 0.015" Marked with: specific modeL ordered, date code, code.
.040 [1.02] DIA. PLACES .081 [2.06] DIA. PLACES
0.20 [5.1] 0.50 [12.7]
MATERIAL: Units encapsulated thermal resistance molding compound which excellent chemical resistance electrical properties high humidity environments over wide operating temperature range. encapsulant outer shell unit have UL94V-0 ratings. Lead material brass; lead finish matte (100-300 micro-inches) over nickel barrier layer (5-40 micro-inches)."
0.40 [10.16]
.400 [10.16]
2.000 [50.80] 1.000 [25.40] 2.40 [61.0]
VKA75xSC
0.700 [17.78]
1.000 [25.40] 1.400 [35.56]
1.400 [35.56]
0.19 [4.8]
1.900 [48.26]
MOUNTING INSERTS THRU, PLACES MAX. TORQUE, IN/LBS
2.28 [57.91]
OUTPUT ADJUST VOLTAGE
This feature allows user accurately adjust module's output voltage point specified level. This achieved connecting resistor potentiometer from TRIM terminal either +Vout terminal (for increased Vout) -Vout terminal (for decreased Vout). formulae below describe trim resistor value obtain Vout change output voltage prior adjustment (3.3V, 12V, 15V, 24V). Radj
NOTE
Special attention should given peak voltage deviation during dynamic load step when trimming output above original point avoid tripping overvoltage protection circuit. Should condition occur, converter will into latch condition must externally reset before will return normal operation.
Vo(100 1.225%
(100
Radj down
(100-
USA: France: Japan:
Tucson (Az), Tel: (800) 2537, email: sales@murata-ps.com Milton Keynes, Tel: (0)1908 615232, email: mk@murata-ps.com Montigny Bretonneux, Tel: (0)1 email: france@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Website: www.murata-ps.jp Shanghai, Tel: 3678, email: shanghai@murata-ps.com Guangzhou, Tel: 8066, email: guangzhou@murata-ps.com
Canada: Toronto, Tel: (866) 1232, email: toronto@murata-ps.com
Murata Power Solutions, Inc. Cabot Boulevard, Mansfield, 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356
www.murata-ps.com email: sales@murata-ps.com 9001 REGISTERED
03/04/08
Murata Power Solutions, Inc. makes representation that products circuits described herein, other technical information contained herein, will infringe upon existing future patent rights. descriptions contained herein imply granting licenses make, use, sell equipment constructed accordance therewith. Specifications subject change without notice. 2008 Murata Power Solutions, Inc.
Germany: Tel: (0)89-544334-0, email: munich@murata-ps.com
China:
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Technical enquiries email: mk@murata-ps.com, tel: (0)1908 615232
MCD_VKA75C Series.D01 Page
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