MI-RAM-M1-S

Military Attenuator Module MI-RAM™ Actual size: 2.28 x 2.4 x 0.5in 57,9 x 61,0 x 12,7mm Ripple Attenuator Module Features & Benefits Packaging Options • Reduces output PARD to ≤10mVp-p • Full attenuation up to 20A load • Compatible with all MI-Family converters from 5 to 50VDC output • Efficiency: 93% – 99% • Converter sense, trim, OVP & OCP retained • MIL-STD-810 environments SlimMod: Flangeless baseplate, option suffix: - S Example: MI - RAM - M1 - S FinMod: Finned heat sink, option suffix: - F1, - F2, -F3 or -F4 Examples: MI - RAM - M1 -F1, 0.25” fins, longitudinal MI - RAM - M1 -F2, 0.50” fins, longitudinal MI - RAM - M1 -F3, 0.25” fins, transverse MI - RAM - M1 -F4, 0.50” fins, transverse Electrical Considerations • Size: 2.28” x 2.4” x 0.5” (57,9 x 61,0 x 12,7mm) Transient Response and Dynamic Range: Full rated noise attenuation will be Product Highlights The MI-RAM is designed for applications where extremely low noise outputs are required. When used with any Vicor MI-Family DC-DC converter, the MI-RAM reduces both line frequency related ripple and switching noise to less than or equal to 10mVp-p, DC to 20MHz. The combination of the MI-RAM with an MI-Family converter provides the output noise performance of a linear supply at a power density in excess of 15W/in3. Full encapsulation in a low profile package enables the MI-RAM to meet MIL-STD-810 environmental testing requirements. Slotted baseplate • No adjustments required All of the features of the MI-Family converter remain available while using the MI-RAM, including output voltage trimming, OVP and OTP (MI-200 only), current limiting, remote sense, and output inhibit. Standard: maintained at the MI-RAM output for step load changes up to 10% of the rated output current of the source converter, with the MI-RAM exhibiting an underdamped output excursion of less than 10mVp-p. Some degradation in noise attenuation during the transient response period following the step may be exhibited for larger load changes. Adding output capacitance to the MI-RAM will improve the rejection over a larger dynamic range. Sense Connection: Sense-in and sense-out connections are provided on the MI-RAM. Sense-in connections must be connected to the corresponding sense connections on the Vicor converter. Sense-out pins on the MI-RAM must be connected between the MI-RAM power-output pins, and the point of load. Output Load Characteristics: When used in combination with Vicor DC-DC converters, and with sense leads connected, the MI-RAM will be stable for any non-inductive load. DC Voltage Drop: Below full load, the input to output DC Voltage Drop is controlled to be an essentially constant voltage which appears between the –IN and –OUT terminals. In overload the DC voltage drop will rise as current increases. A few tens of millivolts appears between the +IN and +OUT terminals. Care should be taken not to connect IN and OUT terminals (i.e. through scope probe returns, grounds, etc.), as attenuation will be adversely affected. Part Numbering MI - RAM Ripple Attenuator Module MI-RAM™ Page 1 of 5 Rev 1.3 06/2017 - M - Product Grade Temperatures (°C) Grade Operating Storage I = - 40 to +100 - 55 to +125 M = - 55 to +100 - 65 to +125 vicorpower.com 800 927.9474 2 Current Rating 1 = Up to 10A 2 = Up to 20A MI-RAM™ Specifications (typical at TBP = 25°C, nominal line and 75% load, unless otherwise specified) Parameter Min. Typ. Max. Units Notes 2.0 3.0 mVp-p MI-200; 10% to 100% load Output noise and ripple 6.0 10.0 mVp-p MI-J00; 10% to 100% load Input voltage range 5.0 50 VDC Output voltage accuracy 99.5 100.5 % Of MI source converter 10 A MI-RAM-I1 and MI-RAM-M1 Full load current 20 A MI-RAM-I2 and MI-RAM-M2 DC voltage drop 0.34 0.38 10% to full load Dissipation = (DC voltage drop x load current) + (VIN x 15mA) Isolation 250 VRMS Input / output to baseplate 3.6 3.7 3.8 ounces Weight 102 105 107 grams PRODUCT GRADE SPECIFICATIONS Parameter I-Grade M-Grade Storage temperature -55°C to +125°C -65°C to +125°C Operating temperature (baseplate) -40°C to +100°C -55°C to +100°C 12 hours, 29 cycles 96 hours, 213 cycles 12 cycles -65°C to +100°C 12 cycles -65°C to +100°C -40°C, +80°C -55°C, +80°C 2 years 2 years MIL-STD-810 MIL-STD-810 NAVMAT P-4855-1A NAVMAT P-4855-1A Power cycling burn-in Temperature cycled with power off 17°C per minute rate of change Test data supplied at these temperatures [a] Warranty Environmental compliance Derating [a] Test data available for review or download from vicorpower.com ENVIRONMENTAL QUALIFICATIONS Parameter Qualification Altitude MIL-STD-810D, Method 500.2, Procedure III, explosive decompression (40K ft.). Explosive Atmosphere MIL-STD-810C, Method 511.1, Procedure I MIL-STD-810D, Method 500.2, Procedure II, 40,000ft., 1000 – 1500ft./ min. to 70,000ft., unit functioning MIL-STD-810D, Method 514.3, Procedure I, category 6, helicopter, 20g Vibration MIL-STD-810D, Method 514.3 random: 10 – 300Hz @ 0.02g 2 /Hz, 2000Hz @ 0.002g 2 / Hz, 3.9 total Grms 3h­rs/axis. Sine: 30Hz @ 20g, 60Hz @ 10g, 90Hz @ 6.6g, 120Hz @ 5.0g, 16.0 total Grms, 3 axes MIL-STD-810E, Method 514.4, Table 514.4-VII, ±6 db/octave, 7.7Grms, 1hr/axis MIL-STD-810D, Method 516.3, Procedure I, functional shock, 40g Shock MIL-STD-202F, Method 213B, 18 pulses, 60g, 9msec MIL-STD-202F, Method 207A, 3 impacts / axis, 1, 3, 5 feet Acceleration MIL-STD-810D, Method 513.3, Procedure II Operational test, 9g for 1 minute along 3 mutually perpendicular axes Humidity MIL-STD-810D, Method 507.2, Procedure I, cycle I, 240 hrs, 88% relative humidity Solder Test MIL-STD-202, Method 208, 8hr. aging Fungus MIL-STD-810C, Method 508.1 Salt-Fog MIL-STD-810C, Method 509.1 MI-RAM™ Page 2 of 5 MIL-STD-202F, Method 213B, 75g, 11ms saw tooth shock Rev 1.3 06/2017 vicorpower.com 800 927.9474 MI-RAM™ 25db 30db Attenuation 35db Input to the converter 10V/cm 40db 45db 50db 55db 60db 10Hz 100Hz 1KHz 10KHz 100KHz 1MHz 10MHz Frequency Output from the RAM 20mV/cm Figure 1 — Comparison of input to output ripple (typical) Figure 2 — Attenuation vs. frequency (typical) .01µF + .01µF L1 + IN C1 – Gate IN Gate OUT – In + IN +OUT VI-200 MI-200 + S IN +S Trim –S –OUT +OUT + S OUT MI-RAM VI-RAM N/C + 220µF – S IN – IN – S OUT –OUT 0.22µF Load .01µF .01µF Figure 3 — Connection diagram Storage Vicor products, when not installed in customer units, should be stored in ESD safe packaging in accordance with ANSI/ESD S20.20, “Protection of Electrical and Electronic Parts, Assemblies and Equipment” and should be maintained in a temperature controlled factory/ warehouse environment not exposed to outside elements controlled between the temperature ranges of 15°C and 38°C. Humidity shall not be condensing, no minimum humidity when stored in an ESD compliant package. MI-RAM™ Page 3 of 5 Rev 1.3 06/2017 vicorpower.com 800 927.9474 VI-RAM Mechanical Diagram MI-RAM™ Mechanical Drawing in (mm) 2.28 (57,9) 0.49 (12,4) 0.300.015 (7,6)(0,38) Standard 0.080 Dia (2) places Solder plate over copper alloy 1.30 (33,0) 0.65 (16,5) RoHS 0.080 Dia (2) places Matte tin over copper alloy Pin # 9 4 2.10 (53,4) 3 2 8 VI-RAM MI-RAM 1 .15 (3,8) 7 6 5 .70 .40 (17,8) (10,2) FULL R .15 (3,8) 1.90 (48,3) 1 +IN 2 +Sense IN 3 –Sense IN 4 –IN 5 +OUT 6 +Sense 7 .35 .015 (8,9)(0,38) NC 8 –Sense 9 –OUT Standard RoHS 0.040 (1,0) Dia (7) places Solder plate over copper alloy 0.040 (1,0) Dia (7) places Matte tin over copper alloy Product ID this surface 2.40 (61,0) .30 (7,6) Min. 0.22 (5,6) Min. .50 (12,7) 1.75 Max. (44,4) +.030 (0,76) -.000 (0,00) .01 .12 (3,0) MI-RAM™ Page 4 of 5 1.40 1.00 (35,6) (25,4) Function Aluminum Base Rev 1.3 06/2017 vicorpower.com 800 927.9474 MI-RAM™ Vicor’s comprehensive line of power solutions includes high density AC-DC and DC-DC modules and accessory components, fully configurable AC-DC and DC-DC power supplies, and complete custom power systems. Information furnished by Vicor is believed to be accurate and reliable. However, no responsibility is assumed by Vicor for its use. Vicor makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication. Vicor reserves the right to make changes to any products, specifications, and product descriptions at any time without notice. Information published by Vicor has been checked and is believed to be accurate at the time it was printed; however, Vicor assumes no responsibility for inaccuracies. Testing and other quality controls are used to the extent Vicor deems necessary to support Vicor’s product warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. Specifications are subject to change without notice. Visit http://www.vicorpower.com/mil-cots_dc-dc/mil-cots_mi-ram_ripple_attenuator_module for the latest product information. Vicor’s Standard Terms and Conditions and Product Warranty All sales are subject to Vicor’s Standard Terms and Conditions of Sale, and Product Warranty which are available on Vicor’s webpage (http://www.vicorpower.com/termsconditionswarranty) or upon request. Life Support Policy VICOR’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER AND GENERAL COUNSEL OF VICOR CORPORATION. As used herein, life support devices or systems are devices which (a) are intended for surgical implant into the body, or (b) support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in a significant injury to the user. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system or to affect its safety or effectiveness. Per Vicor Terms and Conditions of Sale, the user of Vicor products and components in life support applications assumes all risks of such use and indemnifies Vicor against all liability and damages. Intellectual Property Notice Vicor and its subsidiaries own Intellectual Property (including issued U.S. and Foreign Patents and pending patent applications) relating to the products described in this data sheet. No license, whether express, implied, or arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Interested parties should contact Vicor’s Intellectual Property Department. Vicor Corporation 25 Frontage Road Andover, MA, USA 01810 Tel: 800-735-6200 Fax: 978-475-6715 email Customer Service: custserv@vicorpower.com Technical Support: apps@vicorpower.com MI-RAM™ Page 5 of 5 Rev 1.3 06/2017 vicorpower.com 800 927.9474