Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT FEATURES • Fully qualified to Class H or K • –55°C to +125°C operation • 19 to 40 VDC input • Fully Isolated • Magnetic feedback • Fixed frequency, 600 kHz typical • Topology – Single Ended Forward • Inhibit function – input and output • Sync function • Output trim on single output models • Indefinite short circuit protection • Remote sense on single output models • Up to 87% efficiency • May be paralleled up to 228 watts MODELS VDC OUTPUT SINGLE 3.3 5 12 15 DESCRIPTION The SMFLHP Series™ 28 volt DC/DC converters are rated up to 100 watts output power over a –55°C to +125°C temperature range with a 28 VDC nominal input. On dual output models, up to 70% of the rated output power can be drawn from either the positive or negative outputs. Current sharing allows the units to be paralleled for total power of up to 228 watts. The welded, hermetically sealed package is only 3.005 x 1.505 x 0.400 inches, giving the series an overall power density of up to 67 watts per cubic inch. SCREENING SMFLHP converters offer screening options to Space Prototype (O), Class H, or Class K. Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P” or “R”, per MILSTD-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. DESIGN FEATURES The SMFLHP Series converters are switching regulators that use a quasi-square wave, single ended forward converter design with a constant switching frequency of 600 kHz. Isolation between input and output circuits is provided with a transformer in the forward path and wide bandwidth magnetic coupling in the feedback control loop. The SMFLHP Series uses a unique dual loop feedback technique that controls output current with an inner feedback loop and output voltage with a cascaded voltage mode feedback loop. The additional secondary current mode feedback loop improves transient response in a manner similar to primary current mode control and allows for ease of paralleling. Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • [email protected] www.craneae.com DUAL ±5 ±12 ±15 Tight load regulation is achieved through a wide-bandwidth magnetic feedback circuit. The output voltage on single SMFLHP models can be easily trimmed up by adding an external resistor. (See Figure 2 for voltage changes with different resistor values.) INHIBIT The SMFLHP Series converters have two inhibit terminals (INH1 and INH2) that can be used to disable power conversion, resulting in a very low quiescent input current. A low (<0.8 volts) is required between INH1 (pin 4) and Input Common (pin 2) to inhibit the converter. A low (<0.5 volts) is required between INH2 (pin 12) and Output Common (pin 8) to inhibit the converter. The application of intermediate voltages to these pins (1.5 to 10.5 volts) should be avoided. CURRENT SHARING AND PARALLEL OPERATION Multiple SMFLHP converters may be used in parallel to drive a common load (see Figure 3). In this mode of operation the load current is shared by two or three SMFLHP converters. In current sharing mode, one SMFLHP converter is designated as a master. The SLAVE pin (pin 11) of the master is left unconnected and the MSTR/INH2 pin (pin 12) of the master is connected to the SLAVE pin (pin 11) of the slave units. The units designated as slaves have the MSTR/INH2 pin (pin 12) connected to the SNS RTN pin (pin 9) of the master unit. Figure 3 shows the typical setup for two or three units in parallel. Note that synchronizing the units together (though shown in the figure) is not required for current sharing operation. A second slave unit may be placed in parallel with a master and slave; this requires the TRI pin (pin 3) of the master unit to be connected to the SNS RTN pin (pin 9). When paralleled, 76% of the total combined power ratings of the SMFLHP converters are available at the load. Overload and short circuit performance are not adversely affected during parallel operation. Page 1 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT OPERATING CONDITIONS AND CHARACTERISTICS SYNC IN AND INHIBIT (INH1, INH2) Input Voltage Range • 19 to 40 VDC continuous • 50 V for 50 msec transient Output Power • up to 100 watts depending on model Lead Soldering Temperature (10 sec per lead) • 300°C Storage Temperature Range (Case) • –65°C to +150°C Power Dissipation (Pd) • 20 watts Case Operating Temperature (Tc) • –55 to +125°C full power • –55 to +135°C absolute Derating Output Power/Current • Linearly from 100% at 125°C to 0% at 135°C Output Voltage Temperature Coefficient • 100 ppm/°C typical Input to Output Capacitance • 150 pF typical Isolation • 100 megohm minimum at 500 VDC, any pin to case Audio Rejection • 50 dB typical Conversion Frequency • Free run mode 600 kHz typical 550 kHz min, 650 kHz. max • External sync range 525 to 675 kHz Inhibit Pin Voltage (unit enabled) • INH1 = 9 to12 V, INH2 = 6 to 9 V Sync In (525 to 675 kHz) • Duty cycle 40% min, 60% max • Logic low 0.8 V max • Logic high 4.5 V min, 5 V max • Referenced to input common • If not used, connect to input common Sync Out • Referenced to input common Inhibit (INH1, INH2) Open Collector • Logic low (output disabled) Current –10 to –5 mA INH1 referenced to input common Logic low 0.8 V max INH2 referenced to output common Logic low 0.5 V max • Logic high (output enabled) Open collector MECHANICAL AND ENVIRONMENTAL Size (maximum) 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm) See case U for dimensions. Weight (maximum) 86 grams Screening 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. Available configurations: OO, HO, HP, HR, KR www.craneae.com Page 2 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT PINS NOT IN USE PIN OUT Pin 1 2 3 4 5 6 7 8 9 10 11 12 Single Output Positive Input Input Common Triple (TRI) Inhibit 1 (INH1) Sync Out Sync In Positive Output Output Common Sense Return Positive Sense Slave Master / Inhibit 2 (MSTR/INH2) Dual Output Positive Input Input Common Triple (TRI) Inhibit 1 (INH1) Sync Out Sync In Positive Output Output Common Negative Output No connection Slave Master / Inhibit 2 (MSTR/INH2) TR1 Inhibit (INH1) Sync Out Sync In Sense Lines Slave MSTR (INH 2) Leave unconnected Leave unconnected Leave unconnected Connect to input common Must be connected to appropriate outputs Leave unconnected Leave unconnected Angled corner indicates pin one. 12 1 11 2 3 4 TOP VIEW SMFLHP (Pin side, marked side) 10 9 8 5 See case U for dimensions. 6 7 FIGURE 1: PIN OUT www.craneae.com Page 3 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT SINGLE OUTPUT MODELS CONNECTION DIAGRAMS - SENSE AND PARALLEL 28V + – Inhibit 1 Positive Input 2 Input Common 3 TR1 4 INH1 5 6 Sync In MSTR/INH2 12 Slave 11 Pos. Sense 10 9 Sense Return Sync Out Sync In – 8 Output Common 7 Positive Output + RL REMOTE SENSE CONNECTION 28V + – 1 Positive Input 2 Input Common 3 4 Inhibit 5 6 Sync In MSTR/INH2 12 11 Slave 10 Pos. Sense 9 Sense Return 8 Output Common 7 Positive Output TR1 INH1 Sync Out Sync In RA – + RL OUTPUT VOLTAGE ADJUST CONNECTION VOUT INCREASE (VOLT) 0.1 RA (OHMS) 3.3–V 5–V 12–V 25 120 70 15–V 20 0.2 240 140 50 40 0.3 360 210 75 60 0.4 480 280 100 80 0.5 600 350 125 100 FIGURE 2: SENSE CONNECTIONS AND TRIM TABLE 28V Inhibit + – 1 Positive Input 2 Input Common 3 TR1 4 5 Sync In 6 MSTR/INH2 12 Slave 11 Pos. Sense MASTER INH1 Sync Out Sense Return Output Common Sync In Positive Output 10 9 7 CONNECT ONLY WHEN 2 SLAVES ARE USED 1 Positive Input 2 Input Common 3 TR1 4 INH1 5 Sync Out 6 Sync In 1 Positive Input 2 Input Common 3 TR1 4 INH1 5 Sync Out 6 SLAVE 1 MSTR/INH2 12 Slave 11 Pos. Sense 10 Sense Return 9 Output Common 8 Positive Output 7 MSTR/INH2 12 Slave 11 Pos. Sense 10 Sense Return 9 Output Common 8 SLAVE 2 Sync In Positive Output 7 FIGURE 3: PARALLEL CONNECTIONS www.craneae.com Page 4 of 13 Rev H - 20071221 – 8 + RL Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT MODEL NUMBERING KEY SMFLHP Base Model Input Voltage 28 05 S / K R Output Voltage Number of Outputs (S = single, D = dual) Screening Radiation Level MODEL SELECTION SMFLHP28 base model / Vout value number of outputs screening Choose one from each of the following rows: Vout value Number of outputs Case option Screening for singles 3R3, 5, 12, 15 for duals: 5, 12, 15 “R” = decimal point, 3R3 = 3.3VDC S (single) or D (dual) standard (case U, leave blank) OO* - Space prototype, HO, HP, HR, KR *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.craneae.com Page 5 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT Electrical Characteristics: –55°C to +125°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. SINGLE OUTPUT MODELS PARAMETER SMFLHP283R3S SMFLHP2805S SMFLHP2812S MIN TYP MAX MIN TYP MAX MIN OUTPUT VOLTAGE TC = 25°C 3.26 3.30 3.34 5.00 5.05 11.88 12.00 12.12 14.85 15.00 15.15 OUTPUT CURRENT VIN = 19 TO 40 VDC 0 — 16 0 — 16 0 — 7.5 0 — 6.67 A OUTPUT POWER VIN = 19 TO 40 VDC 0 — 53 0 — 80 0 — 90 0 — 100 W OUTPUT RIPPLE 10 KHZ - 2 MHZ MAX MIN TYP MAX UNITS CONDITIONS 4.95 TYP SMFLHP2815S VDC TC = 25°C — 10 25 — 15 50 — 30 85 — 30 95 TC = -55°C TO +125°C — 20 40 — 30 90 — 45 150 — 45 175 LINE REGULATION VIN = 19 TO 40 VDC — 0 50 — 0 50 — 0 50 — 0 50 LOAD REGULATION NO LOAD TO FULL — 0 20 — 0 20 — 0 20 — 0 20 mV INPUT VOLTAGE NO LOAD TO FULL CONTINUOUS 19 28 40 19 28 40 19 28 40 19 28 40 VDC V mV p-p mV TRANSIENT1, 2 50 ms — — — 50 — — 50 — — 50 NO LOAD — 70 120 — 70 120 — 80 120 — 80 120 INHIBITED - INH1 — 9 15 — 9 15 — 9 15 — 9 15 INHIBITED - INH2 — 35 80 — 35 80 — 35 80 — 35 80 10 KHZ - 10 MHZ — 30 80 — 30 80 — 30 80 — 30 80 mA p-p EFFICIENCY TC = 25°C 70 72 — 77 80 — 81 86 — 82 87 — % LOAD FAULT TC = 25°C SHORT CIRCUIT POWER DISSIPATION — 15 22 — 15 20 — 15 20 15 20 W RECOVERY1 — 1.5 10 — 1.5 4 ms 50% - 100% - 50% TRANSIENT — 350 400 — 350 450 — 450 700 — 450 700 mV pk RECOVERY1, 3 — 1.5 3.0 — 1.5 3.0 — 1.5 3.0 — 1.5 3.0 ms 19 - 40 -19 VDC TRANSIENT4 — 250 400 — 250 400 — 250 800 — 250 800 mV pk RECOVERY3 — 200 300 — 200 600 — 200 600 — 200 600 μs DELAY — 3.5 10 — 3.5 10 — 3.5 10 — 3.5 10 ms — 0 50 — 0 0 50 — 0 50 mV pk INPUT CURRENT INPUT RIPPLE CURRENT STEP LOAD RESPONSE STEP LINE RESPONSE1 START-UP OVERSHOOT1 50 — Notes 1. Guaranteed by design, not tested. 2. Unit will shut down above approximately 45V but will be undamaged and will restart when voltage drops into normal range. www.craneae.com 4 — 25 — 1.5 — 4 — 1.5 mA 3. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 4. Transition time >10 μs. Page 6 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT Electrical Characteristics: –55°C to +125°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE TC = 25°C SMFLHP2805D SMFLHP2812D SMFLHP2815D CONDITIONS MIN TYP MAX MIN MIN + VOUT 4.95 5.00 5.05 11.88 12.00 12.12 14.85 15.00 15.15 - VOUT 4.92 5.00 5.08 11.80 12.00 12.18 14.77 15.00 15.23 TYP MAX TYP MAX OUTPUT CURRENT2 VIN = 19 TO 40 VDC EACH OUTPUT 0 — 11.2 0 — 5.3 0 — 4.67 TOTAL 0 — 16.0 0 — 7.5 0 — 6.67 OUTPUT POWER2 VIN = 19 TO 40 VDC EACH OUTPUT 0 — 56 0 — 63 0 TOTAL 0 — 80 0 — 90 0 — 100 + VOUT — 25 150 — 50 175 — 50 225 - VOUT — 25 150 — 50 175 — 50 225 OUTPUT RIPPLE 10 KHZ - 2 MHZ — 70 LINE REGULATION VIN = 19 TO 40 VDC + VOUT — 0 50 — 0 50 — 0 50 - VOUT — 25 100 — 25 100 — 25 100 LOAD REGULATION NO LOAD TO FULL + VOUT — 0 50 — 10 100 — 10 100 - VOUT — 25 100 — 50 200 — 50 200 CROSS REGULATION TC = 25°C UNITS VDC A W mV p-p mV mV SEE NOTE 3 — 6 8 — 2 4 — 2 4 SEE NOTE 4 — 7 8 — 2 4 — 2 4 CONTINUOUS 19 28 40 19 28 40 19 28 40 VDC TRANSIENT1, 5 50 ms 0 — 50 0 — 50 0 — 50 V NO LOAD — 50 120 — 50 120 — 50 120 INHIBITED - INH1 — 9 14 — 9 14 — 9 14 INHIBITED - INH2 — 35 80 — 35 80 — 35 80 10 KHZ - 10 MHZ — 30 80 — 30 80 — 30 80 mA p-p EFFICIENCY TC = 25°C BALANCED LOAD 75 80 — 81 86 — 82 87 — % LOAD FAULT TC = 25°C POWER DISSIPATION SHORT CIRCUIT — — 15 1.5 20 4.0 — — 15 1.5 20 4.0 — — 15 1.5 20 4.0 W ms INPUT VOLTAGE NO LOAD TO FULL INPUT CURRENT TC = 25°C INPUT RIPPLE CURRENT RECOVERY1, 6 % mA STEP LOAD RESPONSE ± VOUT 50% - 100% - 50% TRANSIENT — 350 450 — 450 700 — 450 700 mV pk RECOVERY1, 6 — 1.5 3.0 — 1.5 3.0 — 1.5 3.0 ms STEP LINE RESPONSE1 ± VOUT 19 - 40 -19 VDC TRANSIENT1, 7 — 250 600 — 250 800 — 250 800 mV pk RECOVERY1, 6 — 200 300 — 200 600 — 200 600 μs DELAY — 3.5 20 — 3.5 20 — 3.5 20 ms OVERSHOOT1 — 0 25 — 0 0 50 mV pk START-UP Notes 1. Guaranteed by design, not tested. 2. Up to 70% of the total output power (current) is available from either output provided the opposite output is carrying 30% of the power (current) in use. 3. Effect on negative Vout from 50%/50% loads to 30%/70% or 70%/30% loads. 4. Effect on negative Vout from 50%/50% loads to 10% then 50% load on negative Vout www.craneae.com 50 — 5. Unit will shut down above approximately 45V but will be undamaged and will restart when voltage drops into normal range. 6. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 7. Transition time >10 μs. Page 7 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified. 90 90 19V 28V 75 40V 70 65 28V 80 75 40V 70 30 50 70 Output (Watts) 60 10 90 SMFLHP2805S & SMFLHP2805D Efficiency 28V 80 75 70 40V 65 65 60 10 19V 85 Efficiency (%) 80 90 19V 85 Efficiency (%) Efficiency (%) 85 30 50 70 60 10 90 30 50 70 90 100 Output Power (Watts) Output Power (Watts) SMFLHP2812S & SMFLHP2812D Efficiency SMFLHP2815S & SMFLHP2815D Efficiency FIGURE 4 FIGURE 6 FIGURE 5 100mV/div. 0. Vout 100mV/div. 40. 100% to 50% 60. 20V/div. 80. 100. 0.1 50% to 100% Vin Frequency (kHz) 50 µs/div 19 to 40 V SMFLHP Series Audio Rejection SMFLHP2805S Step Line Response 1 10 100 FIGURE 8 20V/div. Vout 50% to 100% –Vout 100% to 50% 1ms/div No Load 50 µs/div 19 to 40 V SMFLHP2805S Turn On Response SMFLHP2815D Step Line Response FIGURE 10 www.craneae.com FIGURE 9 Vin +Vout 100mV/div. 1V/div. 20V/div. FIGURE 7 Vin 1ms/div SMFLHP2805S Step Load Response 200mV/div. Attenuation (dB) 20. FIGURE 11 Page 8 of 13 Rev H - 20071221 1ms/div SMFLHP2815D Step Load Response FIGURE 12 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified. 5V/div. +Vout –Vout 1ms/div No Load SMFLHP2815D Turn On Response 19 6 SMFLHP2805S & 5D SMFLHP2805D Input Voltage (Volts) VIN –Vout Voltage Change (%) 20V/div. 8 4 2 SMFLHP2812D 0 –2 SMFLHP2815D –4 –6 –8 30 50 60 70 Output Load (%) +Pout 70 to 30 %, –Pout 30 to 70% FIGURE 14 Line Transient Response mVp 700 600 500 125°C 100°C 400 300 25°C 200 100 -55°C 0 10 100 1000 10000 Vin Rise-time (µs) SMFLHP2815D Line Transient Response vs. Vin Rise-time FIGURE 16 www.craneae.com SMFLHP2815S & 15D 17 SMFLHP2812S & 12D 40 Cross Regulation FIGURE 13 18 Page 9 of 13 Rev H - 20071221 16 30 40 50 60 70 80 Output Power (Watts) Low Line Dropout FIGURE 15 90 100 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converter Cases 28 VOLT INPUT – 100 WATT TOP VIEW CASE U Flanged case, short-leaded *Case U does not require designator in Case Option position of model number. Seam Seal Angled corner indicates pin one. 0.23 (5.8) Lead Length 0.128 dia (3.25). 1.505 (38.23) max. 0.040 dia (1.02) 1.380 (35.05) 1.250 (31.75) 1 12 1.050 (26.67) 2 11 0.850 (21.59) 3 10 0.650 (16.51) 4 9 0.450 (11.43) 5 8 0.250 (6.35) 6 7 0.220 (5.59 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 Kovar/Nickel Pins #52 alloy/Nickel/Gold; compression glass seal Case U, Rev C, 20060302 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 16: CASE U www.craneae.com Page 10 of 13 Rev H - 20071221 0.050 (1.27) 0.000 0.400 (10.16) max. 2.880 (73.15) 3.005 (76.33) max. 2.750 (69.85) 0.000 0.120 (3.05) 0.250 (6.35) 0.120 (3.05) 0.000 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT 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 no no yes yes 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 no no yes yes yes yes 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.craneae.com Page 11 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT CLASS H AND K, MIL-PRF-38534 ENVIRONMENTAL SCREENING END ITEM-LEVEL TEST PERFORMED SPACE PROTOTYPE (O) NON-QML1 CLASS H QML CLASS K QML Non-destruct bond pull Method 2023 no yes2 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 yes2 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 N/A Post Radiography Electrical Test Room temperature N/A N/A yes2 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 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 required by DSCC but performed to assure product quality. www.craneae.com Page 12 of 13 Rev H - 20071221 Crane Aerospace & Electronics Power Solutions SMFLHP Single and Dual DC/DC Converters 28 VOLT INPUT – 100 WATT 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 P: Radiation tolerant–Tested lots up to 30 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HP3 N/A R: Radiation tolerant–Tested lots up to 100 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HR3 KR3 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. Our SMD products with RHA “P" and "R" code meet DSCC requirements. SMFLHP Single and Dual, Rev H - 20071221. This revision supercedes 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. SMFLHP Series is a trademark of Interpoint. Copyright © 1999 - 2007 Interpoint Corporation. All rights reserved. www.craneae.com Page 13 of 13