VKA50MS05

Corporate: www.cdtechno.com Product: www.cdpowerelectronics.com VKA50xS 50 Watt Single Output Half Brick DC/DC Converter 18-36 V & 33 - 75V Input Range High Efficiency: 87% Typical at 5V 100µS Transient Response 50100% Load Step 420 kHz Fixed-Frequency Operation Remote Sense Operation to +100°C Baseplate Temperature Primary Remote On/Off, Choice of Pos/Neg Logic Adjustable Output Voltage Continuout Short-Circuit Protection Thermal Shutdown Case Ground Pin The VKA50xS Series DC/DC converters present an economical and practical solution for distributed power system architectures which require high power density and efficiency while maintaining system modularity and upgradeability. With the ability to operate over a wide input voltage range of 18 to 36 and 33 to 75 volts, these modules are ideal for use in battery backup applications common in todays' telecommunication and electronic data processing applications. The output is fully isolated from the input, allowing for a variety of polarity and grounding configurations. The VKA50xS's proprietary control circuitry responds to 50-100% load steps in 100µSeconds to within 1% nominal Vout. The patented fixed frequency architecture combined with surface mount technology results in a compact, efficient and reliable solution to DC/DC conversion requirements. Safety per UL1950, EN 60950 and CSA 22.2 #234 PRODUCT SELECTION CHART MODEL VKA50LS03 VKA50LS05 VKA50LS12 VKA50LS15 VKA50LS24 VKA50MS03 VKA50MS05 VKA50MS12 VKA50MS15 VKA50MS24 INPUT VOLTAGE 24VDC (18-36) VOUT (VDC) 3.3V 5.0V 12.0V 15.0V 24.0V 3.3V 5.0V 12.0V 15.0V 24.0V IOUT (A) 10.0 10.0 4.2 3.3 2.1 10.0 10.0 4.2 3.3 2.1 EFFICIENCY MIN 80 85 87 88 89 81 86 88 89 89 TYP 81 86 88 89 90 82 87 89 90 90 48VDC (33-75) SPECIFICATIONS, ALL MODELS Specifications are at TCASE = +40°C nominal input voltage unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS INPUT Voltage Range VKA50LS VKA50MS Maximum Input Current VKA50LS VIN = 16VDC VKA50MS VIN = 27VDC Reflected Ripple Current Peak - Peak Input Ripple Rejection DC to 1KHz No Load Input Current LS/MS Power Dissipation LS/MS No Load Standby, Primary On/Off Disabled LS/MS Inrush Charge VIN = VINmax. VKA50LS VKA50MS Quiescent Operating Current Primary On/Off Disabled 18 33 24 48 36 75 3.7 2.2 VDC VDC A A mA dB mA W W INPUT 50 20 60 50/100 3.6/4.8 0.18/0.4 0.520 0.360 8 12 mC mC mA PARAMETER OUTPUT Rated Power Set point Accuracy Line Regulation Load Regulation Output Temperature Drift Output Ripple, p-p Output Current Limit Inception Output Short-Circuit Current (2) Output Overvoltage Limit Transient Response Peak Deviation Settling Time CONDITIONS MIN 0 TYP MAX 50 1 0.05 0.05 UNITS W % % % %/°C VOUT, Nom lOUT, Nom lOUT, Nom V VOUT, Nom µSec OUTPUT High Line to Low Line No Load to Rated Load DC to 20MHz BW test 0.02 0.02 ±.02 1% 125% 50 to 100% Load Step di/dt = 1.0A/µSec VOUT, 1% of Nominal Output 2% 100 130% 110% 130% PARAMETER ISOLATION Input to Output Input to Baseplate Output to Baseplate Resistance Capacitance Leakage Current GENERAL Efficiency, Line, Load, Temp. (3) Switching Frequency Remote Sense Compensation Output Voltage Adjust Range Remote On/Off Control Inputs Primary Sink Current-Logic Low Vlow Vhigh Turn-on Time Weight TEMPERATURE Operation/Specification Storage Shutdown Temperature Thermal Impedance, case-ambient Lead Solder Temperature NOTES: (1) (2) (3) (4) (5) CONDITIONS Peak Test for 2 Seconds MIN 1500 1500 500 10 TYP MAX UNITS VDC VDC VDC MΩ pF µA, rms VISO = 240VAC, 60Hz 2000 180 GENERAL 400 12V & higher(4) Open Collector/Drain 420 -50% / +25% 440 0.5 KHz V VOUT, Nom Within 1% of Rated Output 10.0 1.0 0.4 Open Collector 12.5 85 (3.0) +100 +125 +115 +300 mA V mSec g (oz.) °C °C °C °C/W °C Case Temperature Case Temperature Case Temperature 10 Seconds max -40 -55 +100 +25 +25 7.1 See Typical Performance Curves, page 3 Continuous Mode See graphs for Efficiency vs. Output Load, VIN, TCASE 3.3V Models Limited in Trim Down Range Consult Factory for Details VKA50xS Rev C 3/2001 Product: www.cdpowerelectronics.com 2 TCASE = +40°C nominal input voltage unless otherwise specified. TYPICAL PERFORMANCE CURVES VKA50 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) VKA50xS Rev C xSzz - Product: www.cdpowerelectronics.com ORDERING INFORMATION 3/2001 3 MECHANICAL NOTES: All dimensions are in inches (millimeters). 0.530 MAX [13.46] 0.20 [5.1] PIN PLACEMENT TOLERANCE: ± 0.005" MECHANICAL TOLERANCE: ± 0.015" Marked with: specific modeL ordered, date code, job code. .040 [1.02] DIA. 7 PLACES .081 [2.06] DIA. 2 PLACES 0.20 [5.1] 0.50 [12.7] MATERIAL: Units are encapsulated in a low thermal 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 UL94V-0 ratings. Lead material is solder plated to allow ease of solderability. 0.40 [10.16] .400 [10.16] 2.000 [50.80] 1.000 [25.40] 2.40 [61.0] MAX VKA50xS 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 M3 X 0.5 THRU, 4 PLACES MAX. TORQUE, 8 IN/LBS 2.28 [57.91] MAX OUTPUT ADJUST VOLTAGE This feature allows the user to accurately adjust the module's output voltage set point to a specified level. This is achieved by connecting a resistor or potentiometer from the TRIM terminal to either the +Vout terminal (for increased Vout) or the -Vout terminal (for decreased Vout). The formulae below describe the trim resistor value to obtain a Vout change of ∆%. VO is output voltage prior to adjustment (3.3V, 5V, 12V, 15V, or 24V). Radj - up = OVP NOTE Special attention should be given to the peak voltage deviation during a dynamic load step when trimming the output above the original set point to avoid tripping the overvoltage protection circuit. Should an OVP condition occur, the converter will go into a latch condition and must be externally reset before it will return to normal operation. ( Vo(100 + ∆%) 1.225∆% _ (100 + 2∆%) ∆% ) kΩ Radj - down = (100 - 2) ∆% kΩ C&D Technologies (Power Electronics) Ltd. Shannon, Co. Clare, Ireland Tel: +353.61.474.133 Fax:+353.61.474.141 Power Electronics Division, United States 3400 E Britannia Drive, Tucson, Arizona 85706 Tel: 800.547.2537 Fax: 520.770.9369 C&D Technologies, (NCL) 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. Product: www.cdpowerelectronics.com VKA50xS Rev C 3/2001 4