Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 VOLT INPUT – 30 WATT FEATURES Radiation tolerant space dc-dc converter • Single event effects (SEE) LET performance to 86 MeV cm2/mg • Total ionizing dose (TID) guaranteed to 100 krad(Si) RHA level R, per MIL-STD-883 method 1019 -- 50 - 300 rad(Si)/sec dose rate (Condition A) -- 10 mrad(Si)/sec dose rate (Condition D) • Operating temperature -55° to +125°C • Qualified to MIL-PRF-38534 Class H and K • Input voltage range 16 to 40 volts models • Transient protection 50 V for 50 ms Output Voltage (V) • Fully isolated, magnetic feedback • Fixed high frequency switching, 600 kHz typical • Trim function or remote sense on single output models • Inhibit and synchronization functions • Indefinite short circuit protection DESCRIPTION The Interpoint® SMTR Series™ of 28 volt dc-dc converters offers up to 30 watts of output power from single or dual configurations. They 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 SMTR 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 MIL-STD38534. 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 Table 9 on page 13 and Table 10 on page 14 for more information. The SMTR converters are constant frequency, p ulse-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 tightlycoupled magnetics. Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Rd. NE, Redmond, WA 98052 +1.425.882.3100 • [email protected] www.craneae.com/interpoint DUAL 3.3 ±5 5 ±12 12 ±15 15 • Up to 84% efficiency Converter Design SINGLE SMTR converters have an internal input filter that helps reduce the need for external components in normal operation. Use our SFMC EMI input filter to meet the requirements of MIL-STD461C’s CE03. 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. 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 140% of the maximum rated output current. 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 an active high 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 the input voltage range of 16 to 40 volts. Operation below 16 volts, including MIL-STD-704D emergency power conditions is possible with derated power. Refer to the low line dropout graphs (“Figure 22” on page 10, “Figure 31” on page 1 and “Figure 32” on page 1) for details. Page 1 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Improved Dynamic Response The SMTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 40 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 voltage and very low quiescent input current. The converter is inhibited when the inhibit pin is pulled below 0.8 V and enabled when its inhibit pin is left floating. An external inhibit interface should be capable of pulling the converter’s inhibit pin below 0.8 V while sinking the maximum inhibit current and also allowing the inhibit pin to float high to enable the converter. A voltage should not be applied to the inhibit pin. The open circuit voltage present on the inhibit pin is 9 to 11 V. trim and Remote sense (available on single output models only) SMTR SINGLE OUTPUT CONVERTER SMTR SINGLE OUTPUT CONVERTER 1 +VIN 4 OUTPUT COMMON 1 SENSE RETURN 3 6 SENSE 10 INPUT COMMON 1 POSITIVE OUTPUT +VIN OUTPUT COMMON SENSE RETURN RL SENSE 1 RT 5 10 INPUT COMMON POSITIVE OUTPUT EXTERNAL TRIM CONNECTION REMOTE SENSE CONNECTION 1 Make connections at converter. 2 Make connections at load. Figure 1: Trim Connection 1, 2, 3 Trim Formulas Vout = desired output voltage; RT = trim resistor 3.3 V: RT = 1300 * Vout 1.2475 5 V: RT = 1300 * Vout 1.2475 12 V: RT = 1300 * Vout 1.2475 15 V: RT = 1300 * Vout 1.2475 www.craneae.com/interpoint – 4304 – 6512 – 15631 – 19498 4 3 6 5 Figure 2: Remote Sense 2, 3 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. Do not exceed maximum power. 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. 4. When using remote sense for voltage compensation or when using remote sense for trim, the output will drift over temperature. Contact Applications Engineering for more information at powerapps@ crane-eg.com Page 2 of 14 SMTR Rev AB - 2015.01.06 2 RL 2 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt PIN OUT Pin Single Output Dual Output 1 Positive Input Positive Input 2 Inhibit Inhibit 3 Sense Return Positive Output 4 Output Common Output Common 5 Positive Output Negative Output 6 Positive Sense Case Ground 7 Case Ground Case Ground 8 Case Ground Case Ground 9 Sync Sync 10 Input Common Input Common Table 1: Pin Out Inhibit PINS NOT IN USE Leave unconnected Sync In Connect to Input Common Sense Lines Must be connected to appropriate outputs Table 2: Pins not in Use Dot on top of cover indicates pin one. 1 10 2 3 4 BOTTOM VIEW SMTR SINGLE FLANGED AND NON-FLANGED 9 8 7 Dot on top of cover indicates pin one. 5 1 3 4 5 BOTTOM VIEW SMTR DUAL FLANGED AND NON-FLANGED 6 10 Dotted line outlines flanged package option. 9 8 7 6 Dotted line outlines flanged package option. For dimensions see “Figure 23: Cases H2” on page 11 and “Figure 24: Cases K3” on page 12. For dimensions see “Figure 23: Cases H2” on page 11 and “Figure 24: Cases K3” on page 12. Figure 4: Pin Out SMTR Dual Output Models Figure 3: Pin Out SMTR Single Output Models www.craneae.com/interpoint 2 Page 3 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt model numbering key Base Model Input Voltage SMTR 28 05 D SMD Numbers F / K R Output Voltage Number of Outputs (S=single, D=dual) Case Option ("F" indicates flanged option, non-flanged case has no designator in this position) Screening Figure 5: Model Numbering Key Category Base Model and Input Voltage Options SMTR Fill in for Model # __________ SMTR SMTR Similar Part 5962R0150102KXC SMTR283R3S/KR 5962R9306802KXC SMTR2805s/KR 5962R9306902KXC SMTR2812S/KR 5962R9307002KXC SMTR2815S/KR 5962R9320502KXC SMTR2805d/KR 5962R9307102KXC SMTR2812D/KR 5962R9307202KXC SMTR2815D/KR To indicate the flanged case option change the “X” to “Z” In the SMD number. The SMD number shown is for Class K screening, non-flanged, and Radiation Hardness Assurance (RHA) level R. See the SMD for the numbers for other screening and radiation levels. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from: http://www.dscc.dla.mil/programs/smcr Radiation Hardness Assurance (RHA) To Standard Microcircuit Drawing (SMD) Table 3: SMD Numbers model Number Options determine the model number enter one option from each category in the form below. Output Voltage 1 Number of Outputs 2 Case Options 3 Screening 4 RHA 5 3R3, 05, 12, 15 S (non-flanged, leave blank) O O 05, 12, 15 D F (flanged) H P K R __________ _______ / _______ Notes: 1. Output Voltage: An R indicates a decimal point. 3R3 is 3.3 volts out. The 3R3 is only available in single output models. 2. Number of Outputs: S is a single output and D is a dual output 3. Case Options: For the standard case (Figure 23 on page 11) leave the case option blank. For the flanged case option (Figure 24 on page 12), insert the letter F in the Case Option position. 4. Screening: A screening level of O is a Space Prototype and is only available with RHA O. See Table 9 on page 13 and Table 10 on page 14 for more information. 5. RHA: 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.” RHA O is only available with Screening level O. See Table 10 on page 14 for more information. Table 4: Model Number Options www.craneae.com/interpoint Page 4 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table 5: Operating Conditions, All Models, 25°C case, 28 Vin, 100% load, unless otherwise specified. All Models PARAMETER CONDITIONS LEAD SOLDERING TEMPERATURE 1 MIN 10 seconds max. STORAGE TEMPERATURE 1 CASE OPERATING FULL POWER TEMPERATURE ABSOLUTE DERATING OUTPUT POWER/CURRENT 1 LINEARLY ESD RATING 1 ISOLATION: input to output or any pin to case except case pin CURRENT LIMIT 1, 2 MAX UNITS — — 300 °C -65 — +150 °C -55 — +125 -55 — +135 °C From 100% at 125°C to 0% at 135°C MIL-STD-883 Method 3015 MIL-PRF-38534, 3.9.5.8.2 AUDIO REJECTION 1 TYP 2000 - 3999 Class 2 @ 500 VDC at 25°C % OF FULL LOAD 1 V 100 — — Megohms — 140 — % — 40 — dB CONVERSION FREQUENCY FREE RUN -55° TO +125°C 550 600 650 kHz SYNCHRONIZATION INPUT FREQUENCY 500 — 675 kHz % Sync is floating and isolated DUTY CYCLE 1 40 — 60 ACTIVE LOW — — 0.8 ACTIVE HIGH 1 4.5 — 5 REFERENCED TO V INPUT COMMON IF NOT USED CONNECT TO INPUT COMMON INHIBIT ACTIVE LOW (OUTPUT DISABLED) inhibit pin pulled low — — 0.8 V Do not apply a voltage to the inhibit pin. 3 INHIBIT PIN SOURCE CURRENT 1 — — 8 mA INHIBIT ACTIVE HIGH (OUTPUT ENABLED) INHIBIT PIN CONDITION Do not apply a voltage to the inhibit pin. 3 OPEN PIN VOLTAGE 1 REFERENCED TO INPUT COMMON OPEN COLLECTOR OR UNCONNECTED 9 — 11 V For mean time between failures (MTBF) contact Applications Engineering [email protected] +1.425.882.3100 option 7 Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Dual outputs: The over-current limit will trigger when the sum of the currents from both outputs reaches 140% (typical value) of the maximum rated “total” current of both outputs. 3. An external inhibit interface should be used to pull the inhibit low or leave it floating. The inhibit pin can be left unconnected if not used. www.craneae.com/interpoint Page 5 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table 6: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. Single output models PARAMETER SMTR283R3S CONDITIONS OUTPUT VOLTAGE OUTPUT CURRENT VIN = 16 TO 40 V OUTPUT POWER VIN = 16 TO 40 V TC = 25°C OUTPUT RIPPLE 10 kHz - 2 MHz LINE REGULATION 2 INPUT VOLTAGE MAX MIN TYP MAX 3.201 3.3 3.399 4.85 5.00 5.15 V 0 — 5.45 0 — 5.0 A — — 18 0 — 25 W — 20 40 — 20 50 — — 50 — — 90 — 0 20 — 10 50 mV NO LOAD TO FULL — 2 20 — 10 50 mV 16 28 40 16 28 40 V V CONTINUOUS 1 NO LOAD TO FULL TRANSIENT 50 ms — — 50 — — 50 INPUT CURRENT NO LOAD — 30 75 — 35 75 INHIBITED — — 8 — — 8 INPUT RIPPLE CURRENT 3 10 kHz - 10 MHz — 25 50 — 25 50 EFFICIENCY TC = 25°C 70 73 — 74 78 — 66 — — 71 — — — — 12 — — 14 TC = -55°C TO +125°C LOAD FAULT 4 UNITS TYP TC = -55°C TO +125°C VIN = 16 TO 40 V LOAD REGULATION SMTR2805S MIN POWER DISSIPATION 1 mV p-p mA mA p-p % W SHORT CIRCUIT RECOVERY — — 6 — — 5 ms STEP LOAD RESPONSE TRANSIENT — ±130 ±300 — ±180 ±300 mV pk 0% - 100% - 50% RECOVERY 5 — — 200 — — 200 µs TRANSIENT RECOVERY 5 — — ±300 — — ±300 mV pk — — 300 — — 300 µs DELAY OVERSHOOT 1 — — 5 — — 5 ms FULL LOAD — 0 50 — 0 50 mV pk CAPACITIVE LOAD 1 NO EFFECT ON DC TC = 25°C Performance — — 3000 — — 3000 µF STEP LINE RESPONSE Vin 16 - 40 -16 V START-UP 6 1 Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Operation is limited below 16 V (see “Figure 22” on page 10). 3.Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. 4.Short circuit protection not guaranteed above 125°C case temperature. www.craneae.com/interpoint 5. Recovery time is measured from application of the transient to the point at which VOUT is within 1% of final value. 6.Tested on release from inhibit. Page 6 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table 7: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. single output models PARAMETER SMTR2812S CONDITIONS OUTPUT VOLTAGE OUTPUT CURRENT OUTPUT POWER TYP MAX MIN TYP MAX 10 kHz - 2 MHz 11.64 12.00 12.36 14.70 15.00 15.30 V 0 — 2.5 0 — 2.0 A 0 — 30 0 — 30 W TC = 25°C — 15 40 — 15 40 — — 90 — — 90 VIN = 16 TO 40 V TC = -55°C TO +125°C LINE REGULATION 2 LOAD REGULATION INPUT VOLTAGE mV p-p — 10 50 — 10 50 mV NO LOAD TO FULL — 20 50 — 10 50 mV CONTINUOUS 16 28 40 16 28 40 V V 1 NO LOAD TO FULL TRANSIENT 50 ms — — 50 — — 50 INPUT CURRENT NO LOAD — 35 75 — 35 75 INHIBITED — — 8 — — 8 INPUT RIPPLE CURRENT 3 10 kHz - 10 MHz — 35 50 — 35 50 EFFICIENCY TC = 25°C 78 83 — 79 83 — 75 — — 76 — — — — 12 — — 12 TC = -55°C TO +125°C LOAD FAULT 4 UNITS Vin = 16 to 40 V Vin = 16 to 40 V OUTPUT RIPPLE SMTR2815S MIN POWER DISSIPATION 1 mA mA p-p % W SHORT CIRCUIT RECOVERY — — 5 — — 5 ms STEP LOAD RESPONSE TRANSIENT — ±270 ±400 — ±310 ±500 mV pk 50% - 100% - 50% RECOVERY 5 — — 200 — — 300 µs TRANSIENT RECOVERY 5 — — ±500 — — ±600 mV pk — — 300 — — 300 µs STEP LINE Response 16 - 40 -16 V START-UP 6 1 DELAY — — 5 — — 5 m sec FULL LOAD OVERSHOOT 1 — 0 120 — 0 150 mV pk CAPACITIVE LOAD 1 NO EFFECT ON DC Tc = 25°C Performance — — 3000 — — 3000 µF Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Operation is limited below 16 V (see “Figure 22” on page 10). 3.Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. 4.Short circuit protection not guaranteed above 125°C case temperature. www.craneae.com/interpoint 5. Recovery time is measured from application of the transient to the point at which VOUT is within 1% of final value. 6.Tested on release from inhibit. Page 7 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table 8: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, free run, unless otherwise specified. DUAL output models SMTR2805D SMTR2812D SMTR2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE + VOUT 4.85 5.00 5.15 11.64 12.00 12.36 14.55 15.00 15.45 4.82 5.00 5.18 11.58 12.00 12.42 14.47 15.00 15.53 - VOUT UNITS V OUTPUT CURRENT 2, 3 EITHER OUTPUT 0 2.5 4.5 1 0 1.25 2.25 1 0 1.00 1.80 1 VIN = 16 to 40 V TOTAL OUTPUT — — 5 — — 2.5 — — 2.00 OUTPUT POWER 2, 3 EITHER OUTPUT 0 12.5 22.5 1 0 15 27 1 0 15 27 1 VIN = 16 to 40 V TOTAL OUTPUT — — 25 — — 30 — — 30 — 20 50 — 30 120 — 25 80 10 kHz - 2 MHz ± VOUT TC = 25°C TC = -55°C TO +125°C — — 90 — — 150 — — 120 — 0 50 — 0 50 — 0 50 VIN = 16 TO 40 V + VOUT - VOUT — 10 100 — 15 150 — 10 180 + VOUT — 5 50 — 5 50 — — 50 — 15 100 — 30 150 — — 180 CROSS REGULATION - VOUT SEE NOTE 5 — — 12 — — 8.3 — — 8 effect on -Vout, 25°C INPUT VOLTAGE SEE NOTE 6 — — 12 — — 8.3 — — 8 16 28 40 16 28 40 16 28 40 V V OUTPUT RIPPLE LINE REGULATION 4 LOAD REGULATION NO LOAD TO FULL CONTINUOUS 1 NO LOAD TO FULL TRANSIENT 50 ms 0 — 50 0 — 50 0 — 50 INPUT CURRENT NO LOAD — 28 75 – 40 75 — 48 75 INHIBITED — — 8 — — 8 — — 8 INPUT RIPPLE CURRENT 7 10 kHz - 10 MHz — 25 50 — 35 50 — 35 50 EFFICIENCY TC = 25°C 74 76 — 77 80 — 78 81 — 72 — — 75 — — 75 — — — 8 12 — 6 12 — 5 12 BALANCED LOAD LOAD FAULT 8 TC = -55°C TO +125°C POWER DISSIPATION 1 A W mV p-p mV mV % mA mA p-p % W SHORT CIRCUIT RECOVERY — — 5.0 — — 5.0 — — 5.0 ms STEP LOAD RESPONSE TRANSIENT — ±150 ±300 — ±200 ±300 — ±220 ±400 mV pk 50% - 100% - 50% ± VOUT RECOVERY 9 — — 200 — — 200 — — 200 µs STEP LINE RESPONSE 1 TRANSIENT — — ±400 — — ±400 — — ±500 mV pk 16 - 40 -16 V ± VOUT RECOVERY 9 — — 300 — — 300 — — 300 µs START-UP 10 DELAY — — 5 — — 5 — — 5 ms FULL LOAD OVERSHOOT 1 — 0 180 — 0 150 — 0 150 mV pk CAPACITIVE LOAD 1 TC = 25°C NO EFFECT ON DC PERFORMANCE — — 3000 — — 3000 — — 3000 µF Notes: 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. The specified max current is available from either output. 3.Up to 90% of the total output current/power is available from either output providing the opposite output is carrying at least 10% of the total output power. 4.Operation is limited below 16 V (see “Figure 22” on page 10). 5.Effect on the negative output under the following conditions: +POUT 20% to 80%; –POUT 80% to 20%. www.craneae.com/interpoint 6.Effect on the negative output under the following conditions: +POUT 50%; –POUT 10% to 50%. See “Figure 21” on page 10. 7.Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. 8.Indefinite short circuit protection not guaranteed above 125°C case temperature. 9.Recovery time is measured from application of the transient to point at which VOUT is within 1% of final value. 10. Tested on release from inhibit. Page 8 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Typical Performance Plots: 28 Vin, 25°C TC, 100% load, free run, unless otherwise specified. These are examples for reference only and are not guaranteed specifications. 16V 70 40V 75 40V 70 5 10 15 20 OUTPUT POWER (WATTS) 60 25 5 SMTR2805S EFFICIENCY 10 10 15 20 25 OUTPUT POWER (WATTS) 30 Figure 8 0 10 70 40V 10 ATTENUATION (dB) 75 20 16V 85 EFFICIENCY (%) EFFICIENCY (%) 5 SMTR2815S EFFICIENCY Figure 7 28V 5 40V 72 62 30 SMTR2812S EFFICIENCY 30 28V 40 80 50 60 40V 75 70 80 70 15 20 25 OUTPUT POWER (WATTS) 65 30 90 100 0.1 5 10 15 20 25 OUTPUT POWER (WATTS) 30 Figure 9 10 100 Figure 11 Figure 10 25W to 12.5W 25W to 2.5W VIN 200mV/div 100mV/div 1 FREQUENCY (kHz) AUDIO REJECTION, SMTR SERIES SMTR2815D EFFICIENCY SMTR2812D EFFICIENCY 20V/div 25 90 65 20mV/div 20 16V 80 60 15 OUTPUT POWER (WATTS) Figure 6 85 77 67 65 65 28V 82 28V EFFICIENCY (%) 75 16V 16V 80 28V EFFICIENCY (%) EFFICIENCY (%) 80 60 87 85 85 2.5W to 25W VOUT 12.5W to 25W 50 μs/div 16 TO 40V SMTR2805S STEP LINE RESPONSE Figure 12 www.craneae.com/interpoint 50 μs/div 50% 100% SMTR2805S STEP LOAD RESPONSE Figure 13 Page 9 of 14 SMTR Rev AB - 2015.01.06 50 μs/div 10% 100% SMTR2805S STEP LOAD RESPONSE Figure 14 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt 20V/div –POUT =15W (50%) VIN VIN 100mV/div 20V/div Typical Performance Plots: 28 Vin, 25°C TC, 100% load, free run, unless otherwise specified. These are examples for reference only and are not guaranteed specifications. 20mV/div 1V/div +VOUT VOUT 7.5W to 15W –VOUT 500 µs/div 50 μs/div 16 V TO 40 V SMTR2805S TURN-ON INTO NO LOAD SMTR2815D STEP LINE RESPONSE Figure 15 –VOUT VOLTAGE CHANGE (%) 20V/div 10 9 8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 +VOUT 3W to 15W –VOUT 200 µs/div 50 μs/div 10% 50% SMTR2815D TURN-ON INTO NO LOAD SMTR2815D +VOUT STEP LOAD RESPONSE 15.5 2805D INPUT VOLTAGE (Volts) –VOUT VOLTAGE CHANGE (%) 16.0 2812D 15.0 COND A 2815D 14.5 COND B 14.0 2805D 2812D 30 13.5 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 21 1 13.0 9 12 15 18 21 24 27 OUTPUT POWER (WATTS) 1% DROP LOW LINE DROPOUT Figure 22 Notes: 1. Percent (%) of power refers to the percent of the total output power of the converter. www.craneae.com/interpoint 2812D 2805D 2815D 2815D 2812D 2805D +POUT 0 3 6 9 12 15 18 21 24 27 30 –POUT 30 27 24 21 18 15 12 9 6 3 0 OUTPUT LOAD (Watts) 10% to 90% LOAD +V 90% to 10% LOAD –V CROSS REGULATION 1 Figure 20 Figure 19 Figure 181 20 SMTR2815D +VOUT STEP LOAD RESPONSE Figure 171 VIN 5V/div 100mV/div 15W to 3W 10 50 μs/div 25% 50% Figure 16 –POUT =15W (50%) 8 7 6 5 4 3 2 1 0 –1 –2 –3 –4 –5 –6 –7 –8 15W to 7.5W Page 10 of 14 SMTR Rev AB - 2015.01.06 30 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt BOTTOM VIEW CASE H2 Seam Seal Squared corner and dot on top of case indicate pin one. 1.115 max. (28.32) 0.955 (24.26) 1 0.040 dia (1.02) 2 3 4 5 10 9 8 7 6 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 1.845 (46.86) SINGLE 0.155 (3.94) Squared corner and dot on top of case indicate pin one. 1.115 max. (28.32) 2.100 max. (53.34) 0.000 0.25 (6.4) 0.000 0.400 max. (10.16) 0.000 0.955 (24.26) 1 2 3 4 5 10 9 8 7 6 0.245 (6.22) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 1.845 (46.86) DUAL 0.155 (3.94) Weight: 50 grams maximum 2.100 max. (53.34) 0.000 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 Kovar/Nickel Pins #52 alloy/Gold ceramic seal Gold plating of 50 - 150 microinches is included in pin diameter Seal hole 0.120 ±0.002 (3.05 ± 0.05) Case H2 SMTR S/D, Rev K, 2014.01.13 Please refer to the numerical dimensions for accuracy. Figure 23: Cases H2 www.craneae.com/interpoint Page 11 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt BOTTOM VIEW CASE K3 Flanged cases: Designator “F” required in Case Option position of model number. Seam Seal Dot on top of case indicates pin one 1.115 max. (28.32) 0.955 (24.26) 1 2 3 4 2 x Dia 0.162 ±0.002 (4.11 ±0.05) 5 2 x R 0.170 (4.32) SINGLE 10 9 8 7 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.555 (14.1) 0.245 (6.22) 0.040 dia (1.02) 6 0.155 (3.94) 2.320 (58.93) 1.845 (46.86) (2.090 (53.09)) (0.000) 0.230 (5.84) 1 4 5 8 7 6 1.445 (36.70) Dot on top of case indicates pin one 1.045 (26.54) 0.25 (6.4) 0.000 0.400 max. (10.16) 0.000 2 3 2 x Dia 0.162 ±0.002 (4.11 ±0.05) 2 x R 0.170 (4.32) 0.645 (16.38) (2.910 max (73.91)) top of header Flange thickness: 0.060 (1.52) Base Plate Detail, Edge View Weight: 52 grams maximum 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/Gold, ceramic seal Gold plating of 50 - 150 microinches included in pin diameter Seal hole 0.120 ±0.002 (3.04 ±0.05) Case K3 SMTR SD F, Rev L, 2014.12.10 Please refer to the numerical dimensions for accuracy. Figure 24: Cases K3 www.craneae.com/interpoint Page 12 of 14 SMTR Rev AB - 2015.01.06 2.320 (58.93) 9 1.845 (46.86) (2.090 (53.09)) 10 0.245 (6.22) (0.000) – 0.230 (5.84) DUAL Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table is for reference only. See individual Series' datasheets for specific screening. dc-dc conVerterS PrototyPe, claSS h and claSS K, Mil-Prf-38534 eleMent eValuation non-QMl 1 PrototyPe /o coMPonent-leVel teSt PerforMed Element Electrical M/S 2 n QMl claSS h M/S 2 /h P claSS K 3 M/S 2 /K P3 n n n n Visual n n n n Internal Visual n n Temperature Cycling n n Constant Acceleration n n Interim Electrical n Burn-in n Post Burn-in Electrical n Steady State Life n Voltage Conditioning Aging n Visual Inspection n Final Electrical n n n n Wire Bond Evaluation n n n n SEM n Notes 1. Non-QML products may not meet all of the requirements of MIL-PRF-38534. 2. M/S = Active components (microcircuit and semiconductor die) 3. P = Passive components, Class H and K element evaluation. Not applicable to space prototype (“O”) element evaluation. Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SEM: Scanning Electron Microscopy Table 9: Element Evaluation table 1: element evaluation –Dc-Dc converterS prototype, claSS h anD claSS K www.craneae.com/interpoint Page 13 of 14 SMTR Rev AB - 2015.01.06 Crane Aerospace & Electronics Power Solutions SMTR Single and Dual DC-DC Converters 28 Volt input – 30 Watt Table is for reference only. See individual Series' datasheets for specific screening. dc-dc conVerterS PrototyPe, claSS h and claSS K Mil-Prf-38534 enVironMental Screening and rha1 P or r non-QMl 2 PrototyPe teSt PerforMed /oo Non-destruct wire bond pull, Method 2023 claSS h /hP /hr 4 4 n claSS K /KP /Kr n n n n n n n n n n n n n n n4 n n4 n n n n n4 n4 n n n n n n n Pre-cap Inspection, Method 2017, 2032 QMl 3 Temperature Cycle (10 times) (Qual 100 times) Method 1010, Cond. C, -65°C to +150°C, ambient Constant Acceleration Method 2001, 3000 g (Qual 5000 g) PIND, Test Method 2020, Cond. A Pre burn-in test, group A, Subgroups 1 and 4 burn-in Method 1015, +125°C case, typical n 5 96 hours n 160 hours 2 x 160 hours (includes mid-BI test) Final Electrical Test, MIL-PRF-38534, group A, Subgroups 1 and 4: +25°C case n Subgroups 1 through 6, -55°C, +25°C, +125°C case n n n n Hermeticity Test Gross Leak, Method 1014, Cond. C n n n n n Fine Leak, Method 1014, Cond. A n n n n n Radiography, Method 2012 n Post Radiography Electrical Test, +25°C case n4 n n4 n n Final visual inspection, Method 2009 n RHA P: 30 krad(Si) total dose n RHA R: 100 krad(Si) total dose Single Event Effect (SEE) n n n n 1 n n n n n Linear Energy Transfer (LET) 86 MeV cm2/mg Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes 1. Our Redmond facility has a DLA approved RHA plan for Interpoint power products. Our SMD products with RHA “P” or “R” code meet DLA requirements. 2. “OO” prototypes are non-QML products and may not meet all of the requirements of MIL-PRF-38534. “O” in the RHA designator position in Interpoint model numbers indicates DLA RHA “-” defined as no RHA. 3. All processes are QML qualified and performed by certified operators. 4. Not required by DLA but performed to assure product quality. 5. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. table 2: environmental Screening anD rha–Dc-Dc converterS prototype, claSS h anD claSS K, rha p or r Table 10: Environmental Screening and RHA Levels SMTR Series Single and Dual, SMTR Rev AB - 2015.01.06. This revision supersedes all previous releases. All technical information is believed to be accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc. reserves the right to make changes in products or specifications without notice. Interpoint is a registered trademark of Crane Co. and SMTR Series is a trademark of Crane Electronics, Inc. Copyright © 1999-2015 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint Page 14 of 14