TM MI-IAM Military Input Attenuator Modules Features Product Highlights The MI-IAM is an accessory product to Vicor’s MI-Series of DC-DC converters that provides the EMI/RFI filtering and transient protection required in military applications. Designed for use with all 28V and 270V input MI-200 or MI-J00 converters, the MI-IAM can drive any number of modules with output loads to 200W. The MI-IAM meets the conducted emissions specifications of MILSTD-461C/D and offers complete input transient, surge, and spike protection to the most severe levels of MIL-STD-1275A and 704A. Reverse polarity protection and overvoltage lockout provide additional safeguards against potentially damaging line conditions. High power arrays can be configured using the expansion port capability of the MI-IAM. " Inputs: 28Vdc and 270Vdc " MIL-STD-461C/D EMI compliance " Output power: Up to 200W from any combination of MI-200 or MI-J00 modules " MIL-STD-810 environments " Expansion port for additional power " MIL-STD-704A & MIL-STD1275A transients and spikes " Short circuit protected " Size: 2.28" x 2.4" x 0.5" (57,9 x 61,0 x 12,7mm) " Reverse polarity protection Specifications (At TBP = 25°C, nominal line and 75% load, unless otherwise specified) PARAMETER Input Characteristics 28Vdc modules Steady state input Input spike limit 270Vdc modules TYP MAX UNITS 18.8 -600 -250 28 50 600 250 100 Vdc Vdc Vdc Vdc Vdc 20 400 800 600 500 Amps Vdc Vdc Vdc Vdc Vdc 4 1.5 125 Amps Watts % Iin Input surge limit Overvoltage shutdown 50 Reverse polarity protection Recommended fuse Steady state input 125 Input spike limit All models MIN 270 -600 Input surge limit Overvoltage shutdown 400 Reverse polarity protection Recommended fuse No load power dissipation Inrush current 0.5 110 10µS, 50Ω 100µS, 15mJ 100mS, 0.5Ω 100mS, automatic recovery Shunt diode: input fuse required F03A type Steady state, l in 10mS Input power leads Conducted emissions CE01, CE03, CE07 CE101, CE102 Conducted susceptibility CS01, CS02, CS06 CS101, CS114, CS116 Isolation Characteristics Input to base Output to base Environmental (MIL-STD-810) Altitude - method 500.2 Humidity - method 507.2 Acceleration - method 513.3 Vibration - method 514.3 Shock - method 516.3 Reliability (MIL-HDBK-217F) 25°C Ground Benign: G.B. 50°C Naval Sheltered: N.S. 65°C Airborne Inhabited Cargo: A.I.C. Thermal Characteristics Efficiency Baseplate to sink Operating temperature, baseplate Storage temperature Mechanical Specifications Weight 1 of 2 10µS, 50Ω per MIL-STD-704A 100µS, 15mJ per MIL-STD-1275A 60mS, 0.5Ω per MIL-STD-1275A 100mS, automatic recovery Shunt diode: input fuse required F03A type EMC Characteristics; MIL-STD-461C/D Output Characteristics Clamp voltage 28Vdc input 270Vdc input Output power Overload protection 28Vdc input 270Vdc input MI-IAM 04/03 NOTES 60 420 250 20 4 MIL-STD-461C MIL-STD-461D MIL-STD-461C MIL-STD-461D Vdc Vdc Watts Amps Amps threshold; auto recovery } Foldback with latched shutdown after 10mS 1,500 1,500 Vrms Vrms 70,000 86 / 240 9 20 40 feet % / hours g's g's g's 3,352,133 804,512 653,666 97 0.14 3 (85) 1 min. 1 min. Procedure II Procedure 1, cycle 1 Procedure Procedure 1, category 6 Procedure 1 hours hours hours % °C/Watt 100 °C See product grade specifications 125 °C See product grade specifications ounces (grams) MI-IAM Model Selection Chart Model Number Nominal Input Voltage Input Range Compatible MI-Series Converter MI-A22-MU 28Vdc 18.8–50Vdc MI-22x and MI-J2x-Mx M–grade MI-A66-MU 270Vdc 125–400Vdc MI-26x and MI-J6x-Mx M–grade MI-A22-IU 28Vdc 18.8–50Vdc MI-22x and MI-J2x-Ix I–grade MI-A66-IU 270Vdc 125–400Vdc MI-26x and MI-J6x-Ix I–grade Product Grade Specifications PARAMETER PRODUCT GRADE 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, 25 cycles 96 hours, 200 cycles 12 cycles -65°C to +100°C 12 cycles -65°C to +100°C -40°C, +80°C -55°C, +80°C Power cycling burn-in Temperature cycled with power off 17°C per minute rate of change Test data supplied at these temperatures* Warranty Environmental compliance Derating 2 years 2 years MIL-STD-810 MIL-STD-810 NAVMAT P - 4855-1A NAVMAT P - 4855-1A *Test data available for review or download from vicorpower.com MI-IAM Safe Operating Area* 270Vdc Input VOLTS-PEAK VALUE OF SPIKE VOLTAGE VOLTS-PEAK VALUE OF SPIKE VOLTAGE 28Vdc Input 600 500 400 Ratings Exceeded 300 200 100 OVP 0 50V -100 -200 Reverse Polarity Protection -300 -400 -500 -600 10-6 1µs 10-5 10µs 10-4 100µs 10-3 1ms 10-2 10ms 10-1 100ms Ratings Exceeded 800 600 OVP 400 0 200 Reverse Polarity Protection 400 600 10-6 1µs 100 1s 500V 400V 200 10-5 10µs 10-4 100µs 10-3 1ms 10-2 10ms 10-1 100ms 100 1s TIME (SECONDS) TIME (SECONDS) * Refer to input characteristics Mechanical Drawing Typical Connection Diagram 2.28 (57,9) 0.49 (12,4) 0.30±.015 (7,6)±(0,38) 0.65 (16,5) 1.30 (33,0) 4 9 3 2.10 (53,4) 0.080 Dia (2) places Solder plate over copper alloy 8 MI-IAM VI-IAM 7 2 6 1 5 1.40 1.00 (35,6) 0.70 (25,4) 0.40 (17,8) (10,2) 0.35± 0.015 (8,9)±(0,38) 0.15 (3,8) FULL R 0.15 (3,8) 4700 pF Pin # 1 2 3 4 5 6 7 8 9 + – +In +Out +In -In Gate In Parallel Gate Out -In -Out MI-IAM +In +Out Gate In Gate Out +S Trim -S -In -Out C1 MI-Converter 4700 pF Input Voltage Range Capacitance (C1) 28Vdc (18.8-50V) 390µF (Max.) 270Vdc (125-400V) 27µF (Max.) 0.040 (1,0) Dia (7) places Solder plate over copper alloy 2.40 (61,0) Product ID this surface 1.90 (48,3) Function +In +In –In –In +Out Gate In Parallel Gate Out –Out 0.30 (7,6) Min. 0.22 (5,6) Min. 0.50 (12,7) 1.75 (44,4) Max. +0.030 (0,76) -0.000 (0) .01 0.12 (3,0) Aluminum Base MI-IAM 04/03 2 of 2