MURATA POWER SOLUTIONS VKA50MS28

VKA50xSC 50 50 W Wa att Single Output Half Brick DC/DC Converter t tt Single Outpu ut Half Br rick OBSOLETE PRODUCT Contact Factory for Replacement Model �� Operation to +100 Op peration to o + oC Baseplate �� RoHS Compliant RoHS S Complia ant Temperature � 18-36 V & 33 - 75V Input Range � Primary Remote On/Off, Choice of � High Efficiency: 87% Typical at Pos/Neg Logic 5V � Adjustable Output Voltage � 100MS Transient Response 50- � Continuout Short-Circuit Protection 100% Load Step � Thermal Shutdown � 420 kHz Fixed-Frequency Operation � Case Ground Pin � Remote Sense The VKA50xSC Series DC/DC backup applications common in todays’ The patented fixed frequency converters present an economical and telecommunication and electronic data architecture combined with surface practical solution for distributed power processing applications. The output is mount technology results in a compact, system architectures which require fully isolated from the input, allowing efficient and reliable solution to DC/ high power density and efficiency for a variety of polarity and grounding DC conversion requirements. Safety while maintaining system modularity configurations. per UL1950, EN 60950 and CSA 22.2 and upgradeability. With the ability to The VKA50xSC’s proprietary #234. operate over a wide input voltage range control circuitry responds to 50-100% of 18 to 36 and 33 to 75 volts, these load steps in 100MSeconds to within 1% modules are ideal for use in battery nominal Vout. PRODUCT SELECTION CHART MODEL INPUT VOUT IOUT EFFICIENCY VOLTAGE (VDC) (A) MIN TYP VKA50LS03C 3.3V 10.0 80 81 VKA50LS05C 24VDC 5.0V 10.0 85 86 VKA50LS12C 12.0V 4.2 87 88 VKA50LS15C (18-36) 15.0V 3.3 88 89 VKA50LS24C 24.0V 2.1 89 90 VKA50MS03C 3.3V 10.0 81 82 VKA50MS05C 48VDC 5.0V 10.0 86 87 VKA50MS12C 12.0V 4.2 88 89 VKA50MS15C (33-75) 15.0V 3.3 89 90 VKA50MS24C 24.0V 2.1 89 90 THROUGH-HOLE SOLDERING INFORMATION These devices are intended for wave soldering or manual soldering. They are not intended to be subject to surface mount processes under any circumstances. The normal wave soldering process can be used with these devices where the device is subjected to a maximum wave temperature of 260°C for a period of no more than 10 seconds. Within this time and temperature range, the integrity of the device’s plastic body will not be compromised and internal temperatures within the converter will not exceed 175°C. Care should be taken to control manual soldering limits identical to that of wave soldering.   ISO9001 CERTIFIED For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 VKA50xSC.B01 Page 1 of 4 VKA50xSC 50 Watt Single Output Half Brick DC/DC Converter SPECIFICATIONS, ALL MODELS Specifications are at T = +40°C nominal input voltage unless otherwise specified. CASE PARAMETER CONDITIONS MIN TYP MAX UNITS INPUT Voltage Range VKA50LS 18 24 36 VDC VKA50MS 33 48 75 VDC Maximum Input Current VKA50LS V = 16VDC 3.7 A IN VKA50MS V = 27VDC 2.2 A IN Reflected Ripple Current Peak - Peak 20 mA Input Ripple Rejection DC to 1KHz 50 60 dB No Load Input Current LS/MS 50/100 mA Power Dissipation LS/MS No Load 3.6/4.8 W Standby, Primary On/Off Disabled LS/MS 0.18/0.4 W Inrush Charge V = V max. IN IN VKA50LS 0.520 mC VKA50MS 0.360 mC Quiescent Operating Current Primary On/Off Disabled 8 12 mA PARAMETER CONDITIONS MIN TYP MAX UNITS OUTPUT Rated Power 0 50 W Set point Accuracy 1 % Line Regulation High Line to Low Line 0.02 0.05 % Load Regulation No Load to Rated Load 0.2 0.5 % Output Temperature Drift ±.02 %/°C Output Ripple, p-p DC to 20MHz BW 1% V , Nom OUT Output Current Limit Inception 130% 150% l , Nom OUT Output Short-Circuit Current (2) test 120% 150% l , Nom OUT Output Overvoltage Limit 125% 135% V Transient Response 50 to 100% Load Step Peak Deviation di/dt = 1.0A/μSec 2% V , Nom OUT Settling Time V , 1% of Nominal Output 100 μSec OUT PARAMETER CONDITIONS MIN TYP MAX UNITS ISOLATION Input to Output Peak Test for 2 Seconds 1500 VDC Input to Baseplate 1500 VDC Output to Baseplate 500 VDC Resistance 10 MΩ Capacitance 2000 pF Leakage Current V = 240VAC, 60Hz 180 μA, rms ISO GENERAL Efficiency, Line, Load, Temp. (3) Switching Frequency 400 420 440 KHz Remote Sense Compensation 0.5 V Output Voltage Adjust Range 12V & higher(4) -50% / +25% V , Nom OUT Remote On/Off Control Inputs Primary Open Collector/Drain Sink Current-Logic Low 1.0 mA Vlow 0.4 V Vhigh Open Collector Turn-on Time Within 1% of Rated Output 10.0 12.5 mSec Weight 85 (3.0) g (oz.) TEMPERATURE Operation/Specification Case Temperature -40 +25 +100 °C Storage Case Temperature -55 +25 +125 °C Shutdown Temperature Case Temperature +100 +115 °C Thermal Impedance, case-ambient 7.1 °C/W Lead Solder Temperature 10 Seconds max +300 °C NOTES: 1) See Typical Performance Curves, page 3 (2) Continuous Mode (3) See graphs for Efficiency vs. Output Load, V , T IN CASE (4) 3.3V Models Limited in Trim Down Range (5) Consult Factory for Details www.murata-ps.com Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 VKA50xSC.B01 Page 2 of 4 GENERAL OUTPUT INPUT VKA50xSC 50 Watt Single Output Half Brick DC/DC Converter Ambient Air Temperature (°C) VKA50 xSzz C Device Family Indicates 50 Watt Regulated Unit Model Number Selected from Table of Electrical Characteristics Where: x = Input Voltage (L = 24VDC; M = 48VDC) zz = Output Voltage (03=3.3V, 05=5V, etc.) Lead Length 0.200” - No Number 0.145” - (6) 0.110” - (8) Remote On-Off Logic: Positive - No Number Negative - (1) RoHS Compliant www.murata-ps.com Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 VKA50xSC.B01 Page 3 of 4 Power Dissipation (W) ORDERING TYPICAL PERFORMANCE CURVES INFORMATION T = +40°C nominal input voltage unless otherwise specified. CASE VKA50xSC 50 Watt Single Output Half Brick DC/DC Converter MECHANICAL NOTES: All dimensions are in inches (millimeters). PIN PLACEMENT TOLERANCE: ± 0.005” 0.530 MAX [13.46] MECHANICAL TOLERANCE: ± 0.015” Marked with: specific modeL ordered, date code, job code. 0.20 [5.1] .040 [1.02] DIA. .081 [2.06] DIA. MATERIAL: Units are encapsulated in a low thermal 7 PLACES 2 PLACES resistance molding compound which has excellent chemical resistance and electrical properties in high humidity environments and over a wide operating temperature range. The encapsulant and outer shell of the unit have 0.20 [5.1] UL94V-0 ratings. Lead material is solder plated to allow 0.50 [12.7] ease of solderability. .400 [10.16] 0.40 [10.16] 2.000 0.700 [50.80] [17.78] 1.000 VKA50xSC [25.40] 1.000 [25.40] 2.40 [61.0] MAX 1.400 1.400 [35.56] [35.56] MOUNTING INSERTS M3 X 0.5 THRU, 4 PLACES MAX. TORQUE, 8 IN/LBS 0.19 [4.8] 1.900 [48.26] 2.28 [57.91] MAX OUTPUT ADJUST VOLTAGE OVP NOTE This feature allows the user to accurately adjust the module’s Special attention should be given to the peak voltage deviation during a dynamic load step when trimming the output voltage set point to a specified level. This is achieved output above the original set point to avoid tripping the by connecting a resistor or potentiometer from the TRIM terminal to either the +Vout terminal (for increased Vout) or overvoltage protection circuit. Should an OVP condition occur, the converter will go into a latch condition and the -Vout terminal (for decreased Vout). The formulae below describe the trim resistor value to obtain a Vout change of must be externally reset before it will return to normal operation. $%. VO is output voltage prior to adjustment (3.3V, 5V, 12V, 15V, or 24V). Vo(100 + $%) (100 + 2$%) _ Radj - up = 7 ( ) 1.225$% $% 100 Radj - down = ( - 2) 7 $% USA: Tucson (Az), Tel: (800) 547 2537, email: sales@murata-ps.com Canada: Toronto, Tel: (866) 740 1232, email: toronto@murata-ps.com UK: Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Murata Power Solutions, Inc. France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Germany: München, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Japan: Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com www.murata-ps.com email: sales@murata-ps.com ISO 9001 REGISTERED Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com 07/28/08 Website: www.murata-ps.jp Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply China: Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. © 2008 Murata Power Solutions, Inc. Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com www.murata-ps.com Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232 VKA50xSC.B01 Page 4 of 4