DC/DC CONVERTERS 28 VOLT INPUT FEATURES • • • • • • • • • • • • • SMTR SERIES 30 WATT Fully qualified to Class H or K Radiation hardened –55° to +125°C operation 16 to 40 VDC input Fully Isolated Magnetic feedback MODELS Fixed frequency, 600 kHz typical VDC OUTPUT Topology – Single Ended Forward SINGLE DUAL Inhibit function 3.3 ±5 Sync function 5 ±12 Indefinite short circuit protection 12 ±15 15 Up to 30 watts output power Trim function on single Size (max.): Non-flanged Case: H2 2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm) output models Flanged Case: K3 2.910 x 1.125 x 0.400 inches (73.79 x 28.58 x 10.16 mm) • Up to 81% efficiency See Figures 22 through 25 for dimensions. Weight: Non-flanged 52 grams max., flanged 55 grams max. Screening: Space prototype, Class H, or Class K (MIL-PRF-38534) Radiation hardness levels O or R DESCRIPTION The SMTR Series™ of 28 volt DC/DC converters offers up to 30 watts of output power from single or dual output configurations. The operate over the full military temperature range of –55°C to +125°C with up to 84% efficiency. SMTR converters are packaged in hermetically sealed metal enclosures, making them ideal for use in military, aerospace and other high reliability applications. SCREENING AND REPORTS SMTR converters offer three screening options (Standard, Class H, or Class K) and two levels of radiation hardness (O or R). See Tables 1, 2, and 3 for more information. Detailed reports on product performance are also available and are listed in Table 4. CONVERTER DESIGN The SMTR converters are constant frequency, pulse-width modulated switching regulators which use a quasi-square wave, single ended, forward converter design. Tight load regulation is maintained by using a wide bandwidth magnetic feedback and, on single output models, through use of remote sense. On dual output models, the positive output is independently regulated and the negative output is cross regulated through the use of tightly coupled magnetics. Indefinite short circuit protection and overload protection are provided by a constant current-limit feature. This protective system senses current in the converter’s secondary stage and limits it to approximately 115% of the maximum rated output current. SMTR converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. For systems that require compliance with MIL-STD-461C’s CE03 standard, Interpoint offers filter/transient suppression modules (including the FMC-461, FMD-461 and FM-704A series filters) which will result in compliance. For the lowest noise performance, connection of the case to input common is recommended. The connection can be hard-wired or AC coupled with a small ceramic bypass capacitor. ® SYNCHRONIZATION Synchronizing the converter with the system clock allows the designer to confine switching noise to clock transitions, minimizing interference and reducing the need for filtering. In sync mode, the converter will run at any frequency between 500 kHz and 675 kHz. The sync control operates with a quasi-TTL signal at any duty cycle between 40% and 60%. The sync pin should be connected to input common pin when not in use. WIDE VOLTAGE RANGE SMTR converters are designed to provide full power operation over a full 16 to 40 Vdc voltage range. Operation below 16 volts, including MIL-STD-704D emergency power conditions is possible with derated power. IMPROVED DYNAMIC RESPONSE The SMTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The min. to max. step line transient response is typically less than 4%. INHIBIT FUNCTION SMTR converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when a TTL compatible 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 8 mA must be sunk from the inhibit pin. 1 SMTR SERIES 30 WATT DC/DC CONVERTERS SYNC AND INHIBIT ABSOLUTE MAXIMUM RATINGS TYPICAL CHARACTERISTICS Sync (500 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 Inhibit TTL Open Collector • Logic low (output disabled) Voltage ≤0.8 V Inhibit pin current 8.0 mA max • Referenced to input common • Logic high (output enabled) Open collector Input Voltage • 16 to 40 VDC Output Power • 25 to 30 watts depending on model Lead Soldering Temperature (10 sec per pin) • 300°C Storage Temperature Range (Case) • –65°C to +135°C RECOMMENDED OPERATING CONDITIONS Input Voltage Range • 16 to 40 VDC continuous • 50 V for 50 msec transient Case Operating Temperature (Tc) • –55°C to +125°C full power • –55°C 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 single and dual outputs • 200 ppm/°C main, 300 ppm/°C aux triple output Input to Output Capacitance • 50 pF typ (100 pF typ triple outputs) Current Limit • 115% of full load typical Isolation • 100 megohm minimum at 500 V Audio Rejection • 40 dB typ (50 dB typ triple output)l Conversion Frequency • Free run 550 min, 600 typ, 650 max kHz • External sync 500 to 675 kHz Inhibit Pin Voltage (unit enabled) • 9 to 11 V Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. SINGLE OUTPUT MODELS SMTR283R3S PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT1 VIN = 16 to 40 VDC OUTPUT POWER1 VIN = 16 to 40 VDC 10 kHz – 2 MHz Tc = –55°C TO +125°C Vin = 16 to 40 VDC Tc = –55°C TO +125°C NO LOAD TO FULL Tc = –55°C TO +125°C CONTINUOUS TRANSIENT 50 ms OUTPUT RIPPLE VOLTAGE LINE REGULATION2 LOAD REGULATION INPUT VOLTAGE1 NO LOAD TO FULL INPUT CURRENT1 INPUT RIPPLE CURRENT3 EFFICIENCY LOAD FAULT4 STEP LOAD RESP. STEP LINE RESP. START-UP1 CONDITION NO LOAD FULL LOAD INHIBITED 10 kHz – 10 MHz Tc = –55°C TO +125°C SHORT CIRCUIT POWER DISSIPATION RECOVERY1, 5 50% – 100% – 50% TRANSIENT RECOVERY5 16 – 40 – 16 VDC TRANSIENT6 RECOVERY5 DELAY OVERSHOOT FULL LOAD NO LOAD MIN 3.27 0 SMTR2805S 0 — 18 0 — 25 0 — 30 0 — 30 W — — 15 — 40 50 — — 35 50 40 90 — — 25 40 40 90 — — 25 40 40 90 mV p-p — — 20 — 15 50 — 15 50 — 15 50 mV — 16 — — 28 — 20 40 50 — 16 — 15 28 — 50 40 50 — 16 — 15 28 — 50 40 50 — 16 — 15 28 — 50 40 50 mV VDC V — — — 30 0.94 7 75 — 8 — — — 35 1.15 3 75 — 8 — — — 35 1.30 3 75 — 8 — — — 35 1.25 3 75 — 8 mA A mA — 74 25 76 50 — — 74 20 78 50 — — 78 20 83 50 — — 79 20 84 50 — mA p-p % — — — 1.4 10 6 — — — 1.4 10 5 — — — 1.4 10 5 — — — 1.4 10 5 W ms ±125 ±250 — 200 TYP 5.00 — SMTR2815S MAX 3.33 5.45 — — MIN 4.95 0 SMTR2812S TYP 3.30 –– MAX MIN TYP MAX MIN TYP MAX 5.05 11.88 12.00 12.12 14.85 15.00 15.15 5.0 0 — 2.5 0 — 2.0 UNITS VDC A — — ±200 ±300 60 200 — — ±250 ±400 60 200 — — ±350 ±500 60 200 mV pk µs ±200 ±300 — 300 — — ±400 ±500 — 300 — — ±500 ±600 — 300 mV pk µs — — — — ±300 300 — — — 1.4 5 — 1.4 5 — 1.4 5 — 1.4 5 ms — — 0 33 50 150 — — 0 50 50 250 — — 0 120 120 600 — — 0 150 150 750 mV pk Notes 1. Tc = –55°C to +125°C 2. Operation is limited below 16V (see Figure 21). 3. Tested with 3300 pF ceramic bypass capacitors connected externally from input common to case and output common to case. 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 final value. 6. Transition time ≥10 µs. ® 2 SMTR SERIES 30 WATT DC/DC CONVERTERS Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE +VOUT SMTR2805D MIN TYP MAX 4.95 5.00 5.05 SMTR2812D MIN TYP MAX 11.88 12.00 12.12 SMTR2815D MIN TYP MAX 14.85 15.00 15.15 –VOUT 4.92 5.00 5.08 11.82 12.00 12.18 14.77 15.00 CONDITIONS UNITS VDC 15.23 OUTPUT CURRENT1, 2 VIN = 16 TO 40 VDC 0 2.5 4.5 0 1.25 2.25 0 1.0 1.8 A OUTPUT POWER1, 2 VIN = 16 TO 40 VDC 0 — 25 0 — 30 0 — 30 W OUTPUT RIPPLE VOLTAGE +/– VOUT 10 kHz - 2 MHz — 20 50 — 30 80 — 25 80 Tc = –55°C TO +125°C — 40 80 — 40 120 — 40 120 LINE REGULATION3 Tc = –55°C +VOUT — 10 50 — 10 50 — 10 50 VIN = 16 TO 40 VDC TO +125°C –VOUT — 50 100 — 50 150 — 50 180 LOAD REGULATION Tc = –55°C +VOUT — 5 50 — 15 50 — 15 50 NO LOAD TO FULL TO +125°C –VOUT mV p-p mV mV — 25 100 — 30 180 — 30 180 CROSS REGULATION SEE NOTE 4 — 7 12 — 4 8.3 — 3 8 EFFECT ON –VOUT SEE NOTE 5 — 4 6 — 4 6 — 4 6 CONTINUOUS TRANSIENT 50 ms NO LOAD FULL LOAD INHIBITED 16 0 — — — 28 — 35 1.10 3 40 50 75 — 8 16 0 — — — 28 — 50 1.34 3 40 50 75 — 8 16 0 — — — 28 — 50 1.29 3 40 50 75 — 8 VDC V mA A mA 10 kHz - 10 MHz — 74 15 76 50 — — 77 20 80 50 — — 78 20 81 50 — mA p-p % — — — 1.4 10 5.0 — — — 1.4 10 5.0 — — — 1.4 10 5.0 W ms INPUT VOLTAGE1 NO LOAD TO FULL INPUT CURRENT INPUT RIPPLE CURRENT1, 6 EFFICIENCY LOAD FAULT7 STEP LOAD RESPONSE ± VOUT STEP LINE RESPONSE ± VOUT START–UP1 POWER DISSIPATION SHORT CIRCUIT1 RECOVERY 50 – 100 – 50% BALANCED TRANSIENT % — ±200 ±300 — ±150 ±300 — ±200 ±400 mV pk RECOVERY8 16 – 40 – 16 VIN TRANSIENT9 — 100 200 — 100 200 — 100 200 µs — ±200 ±400 — ±200 ±400 — ±400 ±500 mV pk RECOVERY8 — — 300 — — 300 — — 300 µs DELAY — 1.4 5 — 1.4 5 — 1.4 5 ms OVERSHOOT FULL LOAD — 0 180 — 0 120 — 0 150 NO LOAD — 50 250 — 120 600 — 150 750 Notes 1. Tc = –55°C to +125°C. 2. Up to 90% of the total output current/power is available from either output providing the positive output is carrying at least 10% of the total output power. 3. Operation is limited below 16 V (see Figure 21). 4. Effect on the negative output under the following conditions: +Pout 20% to 80%; –Pout 80% to 20% mV pk 5. Effect on the negative output under the following conditions: +Pout 50%; –Pout 10% to 50% 6. Tested with 3300 pF ceramic bypass capacitors connected externally from input common to case and output common to case 7. Indefinite short circuit protection not guaranteed above 125°C case. 8. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 9. Transition time ≥ 10 µs. ® 3 SMTR SERIES 30 WATT DC/DC CONVERTERS TRIM AND REMOTE SENSE (AVAILABLE ON SINGLE OUTPUT MODELS ONLY) SMTR SINGLE OUTPUT CONVERTER SMTR SINGLE OUTPUT CONVERTER 1 1 4 OUTPUT COMMON +VIN SENSE RETURN RL 6 2 SENSE 1 RT POSITIVE OUTPUT 2 3 RL 6 INPUT COMMON 4 OUTPUT COMMON SENSE RETURN 3 SENSE 10 +VIN 1 5 INPUT COMMON 10 EXTERNAL TRIM CONNECTION POSITIVE OUTPUT 5 REMOTE SENSE CONNECTION 1 Make connections at converter. 2 Make connections at load. FIGURE 2: REMOTE SENSE2, 3 FIGURE 1: TRIM CONNECTION1, 2, 3 Trim Formulas Vout = desired output voltage; Rt = trim resistor 3.3V: Rt = 1300 * Vout – 4304 1.2475 5V: Rt = 1300 * Vout – 6512 1.2475 12V: Rt = 1300 * Vout – 15631 1.2475 15V: Rt = 1300 * Vout – 19498 1.2475 Notes for Remote Sense and Trim 1. When trimming output voltage and/or remote sensing, the total output voltage increase must be less than 0.6 volts at the converters pins to maintain specified performance. 2. If neither voltage trim nor remote sense will be used, connect pin 3 to pin 4 and pin 5 to pin 6 or the output voltage will increase by 1.2 volts. 3. CAUTION: The converter will be permanently damaged if the positive remote sense (pin 6) is shorted to ground. Damage may also result if the output common or positive output is disconnected from the load with the remote sense leads connected to the load. PIN OUT Dot on top of cover indicates pin one. 1 2 3 4 5 BOTTOM VIEW SMTR SINGLE FLANGED AND NON-FLANGED 10 9 8 7 6 Dotted line outlines flanged package option. Pin 1 2 3 4 5 6 7 8 9 10 Single Output Positive Input Inhibit Sense Return Output Common Positive Output Positive Sense Case Ground Case Ground Sync Input Common Dual Output Positive Input Inhibit Positive Output Output Common Negative Output Case Ground Case Ground Case Ground Sync Input Common See Figures 22 and 23 and for dimensions. FIGURE 3: PIN OUT SINGLE OUTPUT MODELS Dot on top of cover indicates pin one. 1 2 3 4 5 BOTTOM VIEW SMTR DUAL FLANGED AND NON-FLANGED 10 9 8 7 6 Dotted line outlines flanged package option. See Figures 24 and 25 for dimensions. FIGURE 4: PIN OUT DUAL OUTPUT MODELS ® 4 SMTR SERIES 30 WATT DC/DC CONVERTERS SMD NUMBERS STANDARD MICROCIRCUIT DRAWING (SMD) MTR SERIES SIMILAR PART 5962-0150102HXC 5962-9306802HXC 5962-9306902HXC 5962-9307002HXC IN PROCESS IN PROCESS IN PROCESS MODEL NUMBERING KEY SMTR283R3S/HO SMTR2805S/HO SMTR2812S/HO SMTR2815S/HO SMTR2805D/HO SMTR2812D/HO SMTR2815D/HO SMTR Base Model Input Voltage 28 05 S F / K R Output Voltage Number of Outputs (S = single, D = dual) Case Option (Non-flanged case has no designator in this position) To indicate the flanged case option change the “X” to “Z” In the SMD number. The SMD number shown is for Class H screening, non-flanged, 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 SMTR SMD releases which are “in process.” SMDs can be downloaded from http://www.dscc.dla.mil/programs/smcr Screening Radiation Level Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. 85 87 85 16V 16V 16V 75 70 40V 65 60 28V EFFICIENCY (%) 28V 75 40V 70 10 15 20 60 25 40V 72 62 10 5 15 20 5 10 15 20 25 OUTPUT POWER (Watts) OUTPUT POWER (Watts) OUTPUT POWER (Watts) SMTR2805S EFFICIENCY SMTR2812S EFFICIENCY SMTR2815S EFFICIENCY FIGURE 5 FIGURE 7 FIGURE 6 85 90 16V 0 EFFICIENCY (%) 75 70 40V 65 10 16V 85 20 28V ATTENUATION (dB) 28V 80 EFFICIENCY (%) 77 67 65 5 28V 82 80 EFFICIENCY (%) EFFICIENCY (%) 80 80 40V 75 70 30 40 50 60 70 80 90 60 5 10 15 20 OUTPUT POWER (Watts) SMTR2812D EFFICIENCY FIGURE 8 65 5 10 15 20 100 0.1 1 10 OUTPUT POWER (Watts) FREQUENCY (kHz) SMTR2815D EFFICIENCY AUDIO REJECTION, SMTR SERIES FIGURE 9 100 FIGURE 10 ® 5 SMTR SERIES 30 WATT DC/DC CONVERTERS Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. 25W to 2.5W 200mV/div 100mV/div 20mV/div 20V/div 25W to 12.5W VIN 2.5W to 25W VOUT 12.5W to 25W 50µs/div 16 TO 40V 50µs/div 50% 100% 50µs/div 10% 100% SMTR2805S STEP LINE RESPONSE SMTR2805S STEP LOAD RESPONSE SMTR2805S STEP LOAD RESPONSE FIGURE 13 FIGURE 12 20V/div –POUT =15W VIN VIN 15W to 7.5W 100mV/div 20V/div FIGURE 11 20mV/div 1V/div +VOUT 7.5W to 15W VOUT –VOUT 500 µs / div 50µs/div 16 TO 40 50µs/div 25% 50% SMTR2815D STEP LINE RESPONSE SMTR2815D +VOUT STEP LOAD RESPONSE SMTR2805S TURN-ON INTO NO LOAD FIGURE 14 FIGURE 16 FIGURE 15 20V/div –VOUT VOLTAGE CHANGE (%) 10 9 8 7 2812D 6 5 4 2805D 3 2 1 2815D 0 -1 2815D -2 -3 -4 2812D -5 -6 2805D -7 -8 -9 -10 +POUT 0 3 6 9 12 15 18 21 24 27 30 –POUT 30 27 24 21 18 15 12 9 6 3 0 VIN 100mV/div 15W to 3W 5V/div +VOUT –VOUT 3W to 15W 50µs/div 10% 100% 200µs/div SMTR2815D TURN-ON INTO NO LOAD SMTR2815D +VOUT STEP LOAD RESPONSE OUTPUT LOAD (Watts) 10% to 90% LOAD +V 90% to 10% LOAD –V CROSS REGULATION 8 7 6 5 4 3 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 FIGURE 19 FIGURE 18 16.0 15.5 2812D INPUT VOLTAGE (Volts) –VOUT VOLTAGE CHANGE (%) FIGURE 17 2805D COND A 2815D COND B 2805D 2812D 15.0 14.5 14.0 13.5 13.0 10 20 30 40 50 OUTPUT LOAD (%) COND. B: 50% LOAD +V, 50% to 10% –V COND. A: 50% LOAD –V, 50% to 10% +V CROSS REGULATION FIGURE 20 9 12 15 18 21 24 27 30 OUTPUT POWER (Watts) 1% DROP SMTR SINGLES AND DUALS LOW LINE DROPOUT FIGURE 21 ® 6 SMTR SERIES 30 WATT DC/DC CONVERTERS Dot on top of case indicates pin one CASE H BOTTOM VIEW See Figure 23 for pin configurations. 1.125 max (28.58) 2.125 max (53.98) Materials Header Cold Rolled Steel/Nickel/Gold case H2 Cold Rolled Steel/Nickel/Tin case H4 Cover Kovar/Nickel case H2 Cold Rolled Steel/Nickel/Tin case H4 Pins #52 alloy ceramic seal case H1 compression glass seal case H4 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. FIGURE 22: CASE H MAXIMUM DIMENSIONS BOTTOM VIEW CASE H2 SMTR Series Single SMTR Series Dual Seam Seal Squared corner and dot on top of case indicate pin one. Platform 1.110 (28.19) 0.955 (24.26) 1 0.040 dia (1.02) 2 3 4 5 10 9 8 7 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) SMTR Series Dual 6 0.155 (3.94) 2.090 (53.01) 1.845 (46.86) 0.000 0.25 (6.4) 0.000 0.400 max. (10.16) 0.000 Squared corner and dot on top of case indicate pin one. 1.110 (28.19) 0.955 (24.26) 1 2 3 4 5 10 9 8 7 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) SMTR Series Single 6 0.155 (3.94) 2.090 (53.01) 1.845 (46.86) FIGURE 23: CASE H2 0.000 0.000 Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy. ® 7 SMTR SERIES 30 WATT DC/DC CONVERTERS Dot on top of case indicates pin one CASE K BOTTOM VIEW See Figures 40 and 41 for pin configuration 1.125 max (28.58) 2.910 max (73.91) Flange Thickness: Case K3 0.060 (1.52) Case K50.067 +0.005/-0.007 (1.70 +0.13/-0.8) Materials Header Case K3 Cold Rolled Steel/Nickel/Gold Case K8 Cold Rolled Steel/Nickel/Tin Cover Case K3 Kovar/Nickel Case K8 Cold Rolled Steel/Nickel/Tin Pins #52 alloy (all cases) Case K3 ceramic seal Case K8 compression glass seal Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.2) 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. FIGURE 24: CASE K MAXIMUM DIMENSIONS ® 8 SMTR SERIES 30 WATT DC/DC CONVERTERS BOTTOM VIEW CASE K3 Flanged cases: Designator "F" required in Case Option position of model number. SMTR Series Single SMTR Series Dual Platform Header Dot on top of case indicates pin one Seam Seal 1.110 (28.19) 0.955 (24.26) 1 0.040 dia (1.02) 2 3 4 5 0.162 dia (4.11) SMTR Series Dual 10 9 8 7 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.555 (14.1) 6 0.155 (3.94) 2.320 (58.93) 1.845 (46.86) 0.000 – 0.230 (5.84) 0.25 ±0.03 (6.4 ±0.8) 0.000 0.400 max. (10.16) 0.000 Platform Header Dot on top of case indicates pin one Seam Seal 1.110 (28.19) 0.955 (24.26) 1 0.040 dia (1.02) 2 3 4 5 0.162 dia (4.11) SMTR Series Single 10 9 8 7 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.555 (14.1) 6 0.155 (3.94) 2.320 (58.93) 1.845 (46.86) 0.000 0.230 (5.84) 0.25 ±0.03 (6.4 ±0.8) 0.000 0.400 max. (10.16) 0.000 FIGURE 25: CASE K3 ® 9 SMTR SERIES 30 WATT DC/DC CONVERTERS TABLE 1: ELEMENT EVALUATION ELEMENT EVALUATION TEST PERFORMED (COMPONENT LEVEL) SPACE PROTOTYPE CLASS (O) H M/S P M/S P CLASS K M/S P Element Electrical yes no yes yes yes yes Element Visual no no yes yes yes yes Internal Visual no no yes no yes no Temperature Cycling no no no no yes yes Constant Acceleration no no no no yes yes Interim Electrical no no no no yes no Burn-in no no no no yes no Post Burn-in Electrical no no no no yes no Steady State Life no no no no yes no Voltage Conditioning /Aging no no no no no yes Visual Inspection no no no no no yes Final Electrical no no yes yes yes yes Wire Bond Evaluation no no yes yes yes yes SEM SLAM™/C-SAM: Input capacitors only (Add’l test, not req. by H or K) no no no no yes no no no no yes no yes Notes M/S Active components (Microcircuit and Semiconductor Die) P Passive components 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 ® 10 SMTR SERIES 30 WATT DC/DC CONVERTERS TABLE 2: PRODUCT ENVIRONMENTAL SCREENING ENVIRONMENTAL SCREENING TEST PERFORMED (END ITEM LEVEL) Non-destruct bond pull Method 2023 Pre-cap inspection Method 2017, 2032 Temperature cycle Method 1010, Cond. C Constant acceleration Method 2001, 3000 g PIND Test Method 2020, Cond. B Radiography Method 2012 Pre burn-in test Burn-in, Method 1015, 125°C 96 hours 160 hours 2 x 160 hour (includes mid BI test) Final electrical test MIL-PRF-38534, Group A Hermeticity test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Final visual inspection Method 2009 SPACE PROTOTYPE (O) CLASS H CLASS K no no yes yes yes yes yes yes yes yes yes yes no yes yes no yes no yes yes yes yes no no no yes no no no yes yes yes yes yes yes yes yes yes yes yes yes yes Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. ® 11 SMTR SERIES 30 WATT DC/DC CONVERTERS TABLE 3: RADIATION HARDNESS LEVELS PRODUCT LEVEL AVAILABILITY RADIATION HARDNESS LEVELS O: Standard, no radiation guarantee For system evaluation, electrically and mechanically comparable to H and K level. R: Radiation hardened – Tested lots Up to 100 k Rads (Si) total dose SEU guarantee up to 40 MeV R is referenced to (RHA) levels. ENVIRONMENTAL SCREENING LEVELS SPACE PROTOTYPE CLASS CLASS (O) H K OO HO Not available Not available HR KR MIL-PRF-38534, appendix G, Radiation Hardness Assurance Contact Information: www.interpoint.com Interpoint Headquarters USA Phone: 1-800-822-8782 +425-882-3100 Email: [email protected] Interpoint UK Phone: +44-1252-872266 Email: [email protected] 12 SMTR Rev E August 24, 2005 (case to input common). 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. SMTR Series is a trademark of Interpoint. Copyright © 1994 - 2005 Interpoint. All rights reserved. Interpoint France Phone: +33-134285455 Email: [email protected] ®