Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Features Small size, 1.075 inches (27.31 mm) square • Operating temperature -55° to +125°C • Qualified to MIL-PRF-38534 Class H and K • Radiation hardness assurance (RHA) to level R 100 kRad(Si) • Input voltage range 16 to 40 VDC • Transient protection 50 V for 120 ms models • Fully Isolated, magnetic feedback VDC Output • Fixed high frequency switching single 3.3 5 5.2 12 15 • Inhibit function • Indefinite short circuit protection • High power density, 76% efficiency description The SMSA Series™ of high frequency DC/DC converters offers a new standard of performance for low power, space qualified DC/ DC converters. SMSA converters provide up to 5 watts output power over the full military temperature range of -55°C to +125°C with up to 76% efficiency. Thick-film hybrid techniques provide military/aerospace reliability levels and optimum miniaturization. The hermetically sealed case is only 1.075 by 1.075 inches — with a height of only 0.270 inches. Power density for the SMSA Series converters is 16 watts per cubic inch. The SMSA Series’ small size, light weight, and hermetically sealed metal packages make them ideal for use in space, military, aerospace and other high reliability applications. Screening SMSA converters offer the following screening options: Space Prototype (O), Class H, or Class K. Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P” or “R”, per MIL-STD-38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. See “Class H and K, QML Screening” tables for more information. Converter Design The SMSA converters are switching regulators that use a flyback converter design with a constant switching frequency of 500 kHz. They are regulated, isolated units using a pulse width modulated topology and built as high reliability thick-film hybrids. Isolation between input and output circuits is provided with a transformer in the forward power loop and an optical link in the feedback control loop. Excellent input line transient response and audio rejection is achieved by an advanced feed-forward compensation technique. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.interpoint.com dual ±5 ±12 ±15 Negative output regulation is maintained by tightly coupled magnetics. Predictable current limit is accomplished by direct monitoring of the output load current, which results in a constant current output above the overload point. Internal input and output filters eliminate the need for external capacitors. Wide Voltage Range The SMSA converters are designed to provide full power opera tion over the full 16 to 40 VDC voltage range. An undervoltage lockout feature keeps the converter shutdown below approximately 13 VDC to ensure smooth initialization. Improved Dynamic Response The SMSA feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The minimum to maximum step line transient response is typically less than 1%. Inhibit Function SMSA converters provide an inhibit feature that can be used to disable internal switching and inhibit the unit’s output. Inhibiting in this manner results in low standby current, and no generation of switching noise. The converter is inhibited when the active low (≤0.8V) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open collector gate. The open circuit output voltage associated with the inhibit pin is 9 to 11 VDC. In the inhibit mode, a maximum of 4 mA must be sunk from the inhibit pin at 28 VDC input. Page 1 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Operating Conditions and characteristics Inhibit •Active low (output disabled) --Active low voltage ≤0.8 V max --Inhibit pin current 4 mA max --Referenced to input common •Active high (output enabled) --Open collector --Open pin voltage, 9 - 11 Volts Input Voltage Range •16 to 40 VDC continuous •50 V for up to 50 msec transient Output Power •5 watts Lead Soldering Temperature (10 sec per lead) •300°C Storage Temperature Range (Case) •-65°C to +135°C mechanical and environmental Size (maximum) •1.075 x 1.075 x 0.270 inches (27.31 x 27.31 x 6.86 mm) •See case C1 for dimensions. Case Operating Temperature (Tc) •-55°C to +125°C full power •-55°C to +135°C absolute Derating Output Power/Current (Tc) •Linearly from 100% at 125°C to 0% at 135°C Output Voltage Temperature Coefficient •100 ppm/°C typical Input to Output Capacitance •50 pF typical Isolation •100 megohm minimum at 500 VDC •Any pin to case, except case pin •Audio Rejection •50 dB typical Weight (maximum) •15 grams typical Screening Space Prototype (O), Class H, or Class K are radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O) or “R”, per MIL-STD-38534. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. See “Class H and K, MIL-PRF-38534 Screening” tables for more information. Available configurations: OO, HP, KP, HR, KR Conversion Frequency •500 kHz typical •450 kHz min, 600 kHz max SMSA SINGLE AND DUAL Positive 6 Input Input Filter Output Filter Error Amp Inhibit 5 PWM Control Input 7 Common Case 8 Ground Output Filter Feedback = DUAL OUTPUT Figure 1: SMSA Block Diagram www.interpoint.com Page 2 of 14 Rev F - 20090318 - Pending Revision F Release 1 Positive Output VRef 2 Output Common 3 Negative Output Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release PIN OUT PinSingle OutputDual Output 1 Positive Output Positive Output 2Output CommonOutput Common 3No connectionNegative Output 4No connectionNo connection 5InhibitInhibit 6 Positive Input Positive Input 7Input CommonInput Common 8 Case Ground Case Ground Squared corner on header and dot on top of cover indicate pin one. 1 2 3 4 5 BOTTOM VIEW SMSA 8 7 6 See case C1 for dimensions. Figure 2: Pin Out Bottom View www.interpoint.com Page 3 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release SMSA Positive 6 Input 12 k V 5kV Inhibit 5 400 V 50 k V 200 pF 10 K 3.9 K 2N3904 Vcc Typically 1.5 V when inhibited 10 k V 7 Input Common Figure 3: Inhibit Interface SMSA2815S EMI Filter From input power source Positive Input Input Common Positive Output Case Positive Input T1 Positive Output C2 Output Common + C3 To Load Input Common Output Common Case T1 C1 Figure 4: Low Noise Output Filter for SMSA Single Output Model emi Filter From input power source Positive input input Common Positive output output Common smsa2815d Case Positive input T1 Positive output C2 output Common input Common C4 negative output Case C1 + C3 To loads + C5 T1 Figure 5: Low Noise Output Filter for SMSA Dual Output Model The filter suggestions in Figures 4 and 5 will further reduce the output ripple for systems requiring very low output noise. C1 = 0.27 µF ceramic capacitor, 500V C2 = C4 = 6.8 µF tantalum capacitor C3 = C5 = 0.27 µF ceramic capacitor Single output: T1 = 15T #28 AWG winding on toroid, µi = 5000 Dual output: T2 = 10T #28 AWG winding on toroid, µi = 5000 For best results, make interconnections as short as possible. www.interpoint.com Page 4 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release model numbering key Base Model SMSA smd numbers 28 05 S / K R Voltage In (28V) Output Voltage Number of Outputs (S = single, D = dual) Environmental Screening Standard Micro-circuit Drawing (SMD) SMSA Series Similar Part SMSA283R3S/KR SMSA2805S/KR SMSA285R2S/KR SMSA2812S/KR SMSA2815S/KR SMSA2812D/KR SMSA2815D/KR 5962R0621001Kxc 5962R9309202Kxc in process 5962R9309302Kxc 5962R9309402Kxc 5962R9308902Kxc 5962R9309002Kxc The SMD number shown is for Class H screening and no Radiation Hardness Assurance (RHA) level. See the SMD for the numbers for other screening and radiation levels. For exact specifications for an SMD product, refer to the SMD drawing. Call your Interpoint representative for status on the SMSA SMD releases which are “in process.” SMDs can be downloaded from: http://www.dscc.dla.mil/programs/smcr Radiation Hardness Assurance (RHA) Model Selection SMSA28 Base model Vout value number of outputs / screening RHA Choose one from each of the following rows Vout value Number of outputs Screening Radiation hardness assurance (RHA) for singles: 3R3, 5, 5R2, 12, 15 for duals: 5, 12, 15 “R” = decimal point, 3R3 = 3.3VDC S (single) or D (dual) O* - Space prototype, H, K O* - Space prototype, P, R *Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA” www.interpoint.com Page 5 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. single output models PARAMETER smsa283R3s smsa2805S smsa285R2s MIN TYP MAX MIN TYP MAX MIN TYP MAX CONDITIONS OUTPUT VOLTAGE TC = -55°C TO +125°C 3.25 OUTPUT CURRENT TC = -55°C TO +125°C Vin = 16 to 40 VDC 0 OUTPUT POWER TC = -55°C TO +125°C Vin = 16 to 40 VDC — — 4 — — 5 — 600 — 150 450 OUTPUT RIPPLE 3.30 — 3.35 4.95 1200 0 5.00 — 5.05 5.15 1000 UNITS 5.20 5.25 VDC — 462 mA — 5 W — 150 450 0 10 kHz - 2 MHz — 300 LINE REGULATION VIN = 16 TO 40 VDC TC = -55°C TO +125°C — 10 50 — 10 50 — 10 50 LOAD REGULATION NO LOAD TO FULL TC = -55°C TO +125°C — 10 50 — 10 50 — 10 50 INPUT VOLTAGE CONTINUOUS NO LOAD TO FULL TC = -55°C TO +125°C 16 28 40 16 28 40 16 28 40 VDC TRANSIENT1 50 ms 0 — 50 — 50 — 50 V NO LOAD — 35 60 — 35 60 — 35 60 FULL LOAD — 250 — 250 — 250 — INPUT CURRENT INPUT RIPPLE CURRENT2 INHIBITED — 10 kHz - 10 MHz TC = -55°C TO +125°C — — EFFICIENCY LOAD FAULT1, 2 STEP LOAD RESPONSE STEP LINE RESPONSE1, 3 START-UP3 3 50 60 — 5 — 200 300 — — 3 50 60 0 — 5 — 200 300 — — mV mA 5 200 300 mA p-p — — 68 74 SHORT CIRCUIT POWER DISSIPATION — 1.5 2.4 — 1.5 RECOVERY — 12.5 12.5 25 ms 50% - 100% - 50% TRANSIENT — 200 500 — 200 500 — 200 500 mV pk RECOVERY1, 3 — 200 500 — 200 500 — 200 500 µs TRANSIENT 16 - 40 VDC 40 - 16 VDC — — 200 200 500 500 — — 200 200 500 500 — — 200 200 500 500 mV pk RECOVERY 16 - 40 VDC 40 - 16 VDC — — 400 400 — 1000 1000 — 400 1000 — 400 1000 400 1000 — 400 1000 DELAY — 10 75 — 10 75 — 10 75 OVERSHOOT1 25 — — 68 3 50 60 mV 60 Notes 1. Guaranteed by design, not tested. 2.Indefinite short circuit protection not guaranteed above 125°C (case). www.interpoint.com 0 mV p-p 2.0 12.5 — 25 — 74 — % 1.5 2.0 W µs ms 3.Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value. Page 6 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. single output models smsa2812s smsa2815s CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE TC = -55°C TO +125°C 11.88 12.00 12.12 14.85 15.00 15.15 OUTPUT CURRENT TC = -55°C TO +125°C Vin = 16 to 40 VDC — OUTPUT POWER TC = -55°C TO +125°C Vin = 16 to 40 VDC — — 5 — 500 PARAMETER OUTPUT RIPPLE 417 — — VDC 333 mA — 5 W — 150 600 10 kHz - 2 MHz — 125 LINE REGULATION VIN = 16 TO 40 VDC TC = -55°C TO +125°C — 10 50 — 10 50 LOAD REGULATION NO LOAD TO FULL TC = -55°C TO +125°C — 10 50 — 10 50 INPUT VOLTAGE CONTINUOUS NO LOAD TO FULL TC = -55°C TO +125°C 16 28 40 16 28 40 VDC TRANSIENT1 50 ms 0 — 50 0 — 50 V NO LOAD — 35 60 — 35 60 FULL LOAD — 235 — — 235 — INPUT CURRENT INPUT RIPPLE CURRENT INHIBITED — 10 kHz - 10 MHz TC = -55°C TO +125°C — — EFFICIENCY LOAD FAULT1, 2 STEP LOAD RESPONSE STEP LINE RESPONSE1, 3 START-UP3 3 50 60 69 74 SHORT CIRCUIT POWER DISSIPATION — 1.2 RECOVERY — 50% - 100% - 50% TRANSIENT — RECOVERY1, 3 — TRANSIENT 16 - 40 VDC 40 - 16 VDC RECOVERY 16 - 40 VDC 40 - 16 VDC DELAY OVERSHOOT1 Notes 1. Guaranteed by design, not tested. 2.Indefinite short circuit protection not guaranteed above 125°C (case). www.interpoint.com — UNITS 5 — 200 — 300 — — — 3 50 60 mV p-p mV mV mA 5 200 300 mA p-p 74 — % 1.2 1.8 W 1.9 — 1 10 — 1 10 300 750 — 400 1000 mV pk 400 1000 — 400 1000 µs — — 200 250 800 600 — — 200 250 500 500 mV pk — 700 1300 — 500 1300 — 700 1300 — 500 1300 — 10 75 — 10 75 — 0 500 — 0 500 ms µs ms mV pk 3.Recovery time is measured from application of the transient to point at which Vout is within 1% of Vout at final value. Page 7 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. dual output models PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT2 OUTPUT POWER2 OUTPUT RIPPLE CONDITIONS + VOUT smsa2805D smsa2812D smsa2815D MIN TYP MAX MIN TYP MAX MIN TYP MAX 4.95 5.00 - VOUT TC = -55°C TO +125°C Vin = 16 to 40 VDC 4.9 5.0 — ±500 TC = -55°C TO +125°C Vin = 16 to 40 VDC — — 10 kHz - 2 MHz 5.05 11.88 12.00 12.12 5.1 11.76 12.00 12.24 800 — 5 — UNITS 14.85 15.00 15.15 14.70 15.00 15.30 ±208 333 — ±167 267 mA — 5 — — 5 W — — 300 — 80 300 — 120 300 LINE REGULATION VIN = 16 TO 40 VDC TC = -55°C TO +125°C + VOUT — 20 100 — 20 100 — 10 50 40 200 — 40 200 — 40 180 NO LOAD TO FULL TC = -55°C TO +125°C - VOUT — LOAD REGULATION + VOUT — 10 120 — 10 120 — 10 50 - VOUT 100 400 — 50 200 6 — 3 6 CROSS REGULATION3 INPUT VOLTAGE INPUT CURRENT INPUT RIPPLE CURRENT STEP LOAD RESPONSE STEP LINE RESPONSE1, 5 100 400 — — 5 8 — 16 28 40 16 28 40 16 28 40 VDC TRANSIENT1 50 ms — — 50 — 50 — — 50 V NO LOAD — 30 50 — 40 63 — 38 60 FULL LOAD — 248 — 235 — — 235 — CONTINUOUS NO LOAD TO FULL INHIBITED — 10 kHz - 10 MHz TC = -55°C TO +125°C — — SHORT CIRCUIT POWER DISSIPATION 3 50 60 65 70 — 1.3 RECOVERY — — 50% - 100% - 50% TRANSIENT — ±200 — 200 — — ±200 ±200 — 300 — RECOVERY1, 5 TRANSIENT 16 - 40 VDC 40 - 16 VDC DELAY OVERSHOOT1 Notes 1.Guaranteed but not tested. 2.Up to 4 watts (80% of full power) is available from either output providing the opposite output is carrying 20% of total power. 3.Shows regulation effect on the minus output during the defined cross loading conditions, with 80% and 20% referring to the total output power of the converter. See Figures 15 and 16. www.interpoint.com mV — RECOVERY 16 - 40 VDC 40 - 16 VDC START-UP mV p-p +PO = 30–70%, -PO = 70–30% -PO = 30–70%, +PO = 70–30% EFFICIENCY LOAD FAULT1, 4 VDC 3.7 — — 5 — 200 300 — — 3 50 60 — 67 2.1 — 50 — 73 1.3 — — 68 1.7 — 3 50 60 mA 5 200 300 mA p-p 73 — % 1.3 1.6 W 30 — ±200 ±550 — ±200 ±600 mV pk — 200 500 — 200 500 µs ±500 — ±500 — ±200 ±200 ±500 ±500 — — ±600 ±600 ±1500 ±1500 — 300 750 — 500 1200 800 2000 — 800 2000 — 500 1200 — 10 30 — 10 30 — 10 25 — 0 ±550 — 500 750 1 5 200 — 300 — % 500 — 0 500 — 1 0 30 500 ms mV pk µs ms mV pk 4.Indefinite short circuit protection not guaranteed above 125°C (case). 5.Recovery time is measured from application of the transient to point at which Vout is within 1% of Vout at final value. Page 8 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. 80 80 50 40 60 70 EFFICIENCY (%) 28V 40V 30 16V 70 EFFICIENCY (%) EFFICIENCY (%) 70 60 80 16V 16V 28V 40V 50 40 1 2 3 4 5 30 6 OUTPUT POWER (Watts) 60 40V 50 40 1 2 3 4 5 30 6 OUTPUT POWER (Watts) SMSA2805S EFFICIENCY 1 2 3 4 5 6 OUTPUT POWER (Watts) SMSA2812S EFFICIENCY Figure 6 28V SMSA2815S EFFICIENCY Figure 7 Figure 8 80 10 40V 28V 50 20 40 50 60 70 80 40 90 30 1 2 3 4 5 6 VIN 30 100 0.1 1 10 100 VOUT 100µs/div 16V TO 40V FREQUENCY (kHz) OUTPUT POWER (Watts) SMSA SERIES AUDIO REJECTION SMSA2815D EFFICIENCY SMSA2805S STEP LINE RESPONSE Figure 11 Figure 10 Figure 9 100% to 10% VIN 50% to 100% 100µs/div 50% 100% 10% to 100% 100µs/div 10% 100% SMSA2805S STEP LOAD RESPONSE SMSA2805S STEP LOAD RESPONSE Figure 12 Figure 13 www.interpoint.com Page 9 of 14 Rev F - 20090318 - Pending Revision F Release 1V/div. 50mV/div. 50mV/div. 100% to 50% 20V/div. 60 20mV/div. ATTENUATION (dB) EFFICIENCY (%) 20V/div. 16V 70 VOUT 1 ms / div SMSA2805S TURN-ON INTO NO LOAD Figure 14 Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release 50% to 10% –POUT=2.5W +VOUT –POUT=0.5W 90% to 10% 200mV/div. VIN 100mV/div. 100mV/div. 20V/div. Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. –VOUT 10% to 90% 10% to 50% 200µs/div 16V TO 40V SMSA2815D INPUT STEP LINE RESPONSE 200µs/div 10% 90% 100µs/div 10% 50%) SMSA2815D +VO STEP LOAD RESPONSE Figure 15 SMSA2815D +VO STEP LOAD RESPONSE Figure 17 Figure 16 VIN 5V/div. +VOUT –VOUT 6 4 SMSA2815D TURN-ON INTO NO LOAD 2812D 2 0 2815D –2 –4 –6 –8 –10 500µs/div 5 8 –VOUT VOLTAGE CHANGE (%) –VOUT VOLTAGE CHANGE (%) 20V/div. 10 90/10 70/30 50/50 30/70 10/90 OUTPUT LOAD (+VOUT % / –VOUT %) 90–10% LOAD on +V, 10-90% LOAD on –V SMSA DUAL CROSS REGULATION Figure 18 Figure 19 16 15 2812S 14 13 2815D 16 15 14 13 2812D 2815S 12 1 2 3 4 5 OUTPUT POWER (Watts) 50 mV DROP 6 SMSA LOW LINE DROPOUT VS. LOAD Figure 21 www.interpoint.com 12 1 2 3 4 2812D 2 COND A 1 0 2815D –1 COND B –2 –3 2812D –4 –5 10 20 30 40 5 6 OUTPUT POWER (Watts) 50 mV DROP SMSA LOW LINE DROPOUT VS. LOAD Figure 22 Page 10 of 14 Rev F - 20090318 - Pending Revision F Release 50 OUTPUT LOAD (%) COND. A: 50% LOAD +V; 10% to 50% –V COND. B: 50% LOAD –V; 10% to 50% +V SMSA DUAL CROSS REGULATION Figure 20 17 2805S INPUT VOLTAGE (Volts) INPUT VOLTAGE (Volts) 17 4 3 Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converter Cases 28 Volt input – 5 Watt - Pending Revision F Release BOTTOM VIEW CASE C1 Projection Weld Seam Seal Squared corner and dot on top of case indicate pin one. 1.075 max. (27.31) 0.932 (23.67) 1 2 3 4 5 0.025 (0.64) dia. 0.025 (0.64) dia. 8 0.132 (3.35) 7 6 0.932 (23.67) 1.075 max. (27.31) Seal hole: 0.070 ±0.005 (1.78 ±0.13) 0.732 (18.59) 0.532 (13.51) 0.332 (8.43) 0.132 (3.35) 0.000 0.205 ±0.010 (5.21 ±0.25) 0.000 0.270 max. (6.86) 0.000 0.205 ±0.010 (5.21 ±0.25) 0.270 max. (6.86) 0.000 Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin Materials Header Cold Rolled Steel/Nickel/Gold Cover Cold Rolled Steel/Nickel Pins Copper/Nickel/Gold compression glass seal Case C1, Rev C, 20060116 Please refer to the numerical dimensions for accuracy. All information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. Copyright © 1999-2006 Interpoint Corp. All rights reserved. Figure 23: Case C1 www.interpoint.com Page 11 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Class H and K, MIL-PRF-38534 Element Evaluation Component-Level Test Performed Space Prototype (O) non-QML1 Class H QML Class K QML M/S2 P3 M/S2 P3 M/S2 P3 Element Electrical yes no yes yes yes yes Element Visual yes yes no no yes yes Internal Visual no N/A yes N/A yes N/A Temperature Cycling no no no no yes yes Constant Acceleration no no no no yes yes Interim Electrical no N/A no N/A yes N/A Burn-in no N/A no N/A yes N/A Post Burn-in Electrical no N/A no N/A yes N/A Steady State Life no N/A no N/A yes N/A Voltage Conditioning Aging N/A no N/A no N/A yes Visual Inspection no no N/A no N/A yes Final Electrical no no yes yes yes yes Wire Bond Evaluation4 yes yes yes yes no no SEM no N/A no N/A yes N/A SLAM™/C-SAM: Input capacitors only (Add’l test, not req. by H or K) no no no yes no yes Notes: 1. Non-QML products do not meet all of the requirements of MIL-PRF-38534. 2. M/S = Active components (Microcircuit and Semiconductor Die) 3. P = Passive components 4. Not applicable to EMI filters that have no wirebonds. Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SEM: Scanning Electron Microscopy SLAM™: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy www.interpoint.com Page 12 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Class H and K, MIL-PRF-38534 Environmental Screening Space Prototype (O) non-QML1 Class H QML Class K QML Non-destruct bond pull2 Method 2023 no yes3 yes Pre-cap Inspection Method 2017, 2032 yes yes yes Temperature Cycle (10 times) Method 1010, Cond. C, -65°C to 150°C, ambient yes yes yes Constant Acceleration Method 2001, 3000 g yes yes yes PIND Test Method 2020, Cond. A no yes3 yes Pre burn-in test yes yes yes Burn-in Method 1015, 125°C case, typical 96 hours 160 hours 2 x 160 hours (includes mid-BI test) yes no no no yes no no no yes Final Electrical Test MIL-PRF-38534 Group A, Subgroups 1 through 6 -55°C, +25°C, +125°C case yes yes yes Radiography Method 2012 N/A N/A yes Post Radiography Electrical Test Room temperature N/A N/A yes3 Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C yes yes yes yes yes yes Final visual inspection Method 2009 yes yes yes End Item-Level Test Performed Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes: 1. Space Prototype (O), non-QML products, do not meet all of the requirements of MIL-PRF-38534. 2. Not applicable to EMI filters that have no wirebonds. 3. Not required by DSCC but performed to assure product quality. www.interpoint.com Page 13 of 14 Rev F - 20090318 - Pending Revision F Release Crane Aerospace & Electronics Power Solutions SMSA Single and Dual DC/DC Converters 28 Volt input – 5 Watt - Pending Revision F Release Class H and K, MIL-PRF-38534 Radiation Assurance ENVIRONMENTAL SCREENING LEVELS SPACE PROTOTYPE (O) non-QML2 CLASS H CLASS K QML QML OO HO N/A P3: Radiation tolerant–Tested lots up to 30 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HP KP R3: Radiation tolerant–Tested lots up to 100 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HR KR RADIATION HARDNESS ASSURANCE LEVELS O1: Standard, no radiation guarantee Notes: 1. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534, which is defined as “no RHA”. 2. Space Prototype (O), non-QML, products do not meet all of the requirements of MIL-PRF-38534. 3. Redmond site, Interpoint, has a Radiation Hardness assurance plan on file with DSCC. SMSA Single and Dual, Rev F - 20090318 - Pending Revision F Release. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. SMSA Series is a trademark of Interpoint. Copyright © 1999 - 2006 Interpoint Corporation. All rights reserved. www.interpoint.com Page 14 of 14