SMRT283R3SHP CRANE | Alldatasheet

Document overview

  • Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
  • PDF pages: 17

Technical content

FEATURES

  • -55°C to +125°C operation
  • 19 to 56 VDC input
  • 80 V for 100 ms transient protection
  • Dual Magnetic feedback
  • Topology – Two-Phase Flyback
  • Inhibit function and output trim
  • Indefinite short circuit protection
  • Radiation tolerant to 1 x 10 12 protons/cm2 neutron or proton fluence 10 11 rads(Si)/sec dose rate 3 x 10 5 rads(Si) total dose SEU 60 MeV cm 2/mg
  • Meets MIL-STD-704A emergency operation and tran- sient standards
  • No minimum load required
  • 5 port isolated design
  • Isolated synchronization input
  • Output trimmable up to +25% and -45% (see trim instructions)

DESCRIPTION

The SMRT Series™ of DC/DC converters offers up to 35 watts of power in a radiation tolerant design. The low profile SMRT converters are manufactured in Interpoint’s fully certified and qualified MIL-STD-1772 production facility and packaged in hermetically sealed steel cases. They are ideal for use in programs requiring high reliability, small size, and high levels of radiation hardening assurance. The SMRT converters are switching regulators which use a two- phase, phase shifted flyback design with a nominal switching frequency of 300 kHz. Close regulation is maintained with advanced constant frequency pulse width modulation design techniques. The SMRT’s feed-forward compensation and discontinuous topologies provide high levels (80 dB peak) of input-to-output ripple rejection. A minimum load of 2% of full load should be used on outputs at TID of 100k rads(Si) or greater to ensure tight regulation over the full input range. Two independent feedback loops are used to regulate the dual and triple outputs, one feedback loop regulates the two-phased single output. Each set of outputs is electrically isolated from the other and from the input. Sets are defined as follows: Two paralleled power trains supplying a single output; one independent power train providing a single output; and one independent power train providing two outputs (neg. output is cross-regulated). This product configuration eliminates cross regulation effects between output sets. Configurations include:

  • Single Output: One two-phased single output
  • Dual Output: Two single phase single outputs
  • Triple Output: One single phase independent Main output and one single phase dual output. (± Auxiliary output). UNDERVOLTAGE LOCKOUT The converters have an undervoltage lockout that will allow power conversion at 17 volts on a rising input voltage and a conversion shut-down on a falling voltage at approximately 14.5 volts. MODELS VDC OUTPUT SINGLE 3.3 DUAL ±12 ±15 TRIPLE +3.3 & ±12 +3.3 & ±15 +5 & ±12 +5 & ±15 Crane Aerospace & Electronics Power Solutions SMRT Single, Dual and Triple DC/DC Converters Crane Aerospace & Electronics Electronics Group (Interpoint Brand) PO Box 97005 • Redmond WA 98073-9705 425.882.3100 • electronics@craneae.com www.craneae.com Page 1 of 17 Rev B – 20080213

28 VOLT INPUT – 35 WATT

The SMRT Series incorporates an inhibit terminal that can be used to disable internal switching. The converter is inhibited when a low (≤ 0.4 V) signal is applied to the inhibit pin. In the inhibit mode the inhibit pin current requirement is less than ~2 mA. The converter resumes normal operation when a high ( ≥ 2.4 V) signal or open circuit is applied to the inhibit pin. The open circuit voltage of the inhibit is 5 to 6 volts.The maximum allowable voltage applied to the inhibit pin is 10 VDC. SYNCHRONIZATION An isolated sync input allows this input to be connected to any of the devices three returns. It can be referenced to the input return or any of the output returns. Input current into this pin is limited by a series 1k ohm resistance. OUTPUT VOLTAGE TRIM The output voltage of each set can be trimmed up by up to 25%, or down by up to 45% of nominal (varies by model, see trim instructions). The following are “sets” of voltages in relation to trim:

  • Triple output models: Main output is one set, the dual outputs are another set.
  • Dual outputs: Each output is a “set.” One set can be trimmed using the trim pin, the other set can be trimmed (up only) using the sense pin.
  • Single: One set RADIATION HARDENED The SMRT DC/DC converters are designed to provide continuous normal operation through radiation levels associated with space missions and in tactical and strategic military environments. The converters will operate normally in radiation environments with up to 1 x 10 12 neutrons per square centimeter neutron fluence, 1011 rads(Si) per second dose rate, and 3x10 5 rads(Si) total dose. These levels of radiation tolerance make the SMRT converters suitable for electronics in programs where operation in high radiation environments is required. At the highest dose rate (10 11 rads(Si)/sec dose rate) there will be an upset resulting in a dip in the voltage. This is non- destructive to the unit. The converter will operate through the upset. SCREENING SMRT 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”, “R” or “F”, per MIL-PRF-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. EMI The SMRT has a built-in EMI input filter which brings the conducted emissions into compliance with both methods of MIL-STD-461, revisions C-CE03 and D-/E-CE102. SENSE Tight load regulation is maintained via wide bandwidth magnetic feedback and through the use of remote sense on single output models and one output (Output “A”) of the dual units. The sense feature can be used to adjust the output voltage by connecting a resistor between the sense line and the positive output. SENSE ADJUST INSTRUCTIONS (UP ONLY) - DUAL UNITS OUTPUT A ONLY (See trim tables on page 4) 5V Dual Sense Adjust: Max. 5.40 V REXTERNAL = 30 ( Vdesired - 5 ) 0.675 - 0.125 Vdesired 12V Dual Sense Adjust: Max. 12.48 V REXTERNAL = 600 ( 5 x Vdesired - 60.42 ) 156 - 12.5Vdesired 15V Dual Sense Adjust: Max 15.36 V REXTERNAL = 600 ( Vdesired - 15 ) 38.4 - 2.5Vdesired Crane Aerospace & Electronics Power Solutions www.craneae.com Page 2 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

OPERATING CONDITIONS AND CHARACTERISTICS Input Voltage Range

  • 19 to 56 VDC continuous Output Power
  • up to 35 watts depending on model Lead Soldering Temperature (10 sec per pin)
  • 300°C Storage Temperature Range (Case)
  • -65°C to +150°C Case Operating Temperature (Tc)
  • -55°C to +125°C full power
  • -55°C to +135°C absolute Power Dissipation (Pd)
  • 20 to 28 W Output Voltage Temperature Coefficient
  • 100 ppm/°C max Current Limit
  • 125% of full load typical Isolation
  • 100 megohm minimum at 500 V Audio Rejection
  • 50 dB typical Conversion Frequency
  • 300 kHz typical, 270 kHz min., 330 kHz max. Radiation (will operate through)
  • 1x10 12 neutrons/cm2 neutron or proton fluence
  • Radiation dose rate 10 11 rads (Si) /sec
  • Total dose up to 300 K rads (Si)
  • SEU 60 MeV-cm 2/mg Cross Regulation
  • 2.5% typical
  • Applies to -V OAUX on triple models only
  • Variation of -V OAUX from +PO=80%, -PO=20% to +P O=20%, -PO=80%
  • Referenced to 50%/50% balanced ±V OAUX loads MECHANICAL AND ENVIRONMENTAL Size (maximum) See case S for dimensions. Weight (maximum) 100 grams maximum Screening Space Prototype, Class H, or Class K Radiation tolerant to Radiation Hardness Assurance (RHA) levels of “-” (O), “P”, “R”, or “F” per MIL-PRF-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, HR, KP, KR, KF SYNC AND INHIBIT Sync In 270-330 kHz typical
  • Duty cycle 20% min, 80% max
  • 2.5V p-p minimum amplitude
  • 10V p-p maximum amplitude
  • Can be referenced to input or output return
  • If sync is used at lower end of the range, full load operation is not guaranteed. Inhibit
  • Actve low (output disabled) INH referenced to input common Active low 0.4 V max Inhibit pin current < 2mA
  • Open collector (output enabled) High >3.0V Not to exceed 10V Open Collector Inhibit Pin Voltage
  • 5 to 6 V Crane Aerospace & Electronics Power Solutions www.craneae.com Page 3 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

RTRIM should be connected between the Trim pin and Positive Sense pin. Duals RTRIM should be connected between the Trim B pin and Positive Vout B pin. This only trims output B, output A can use the sense pin to trim up only. Triples RTRIM should be connected between the Trim A pin and Positive Vout A pin to adjust the Main output. RTRIM should be connected between the Trim B pin and Positive Vout B pin to adjust the Auxiliary outputs. RTRIM = K ( Vout - Vmin ) Vnom - Vout Vout = Desired Voltage; K/Vmin/Vnom come from table below. VNOM KV MIN % OF RATED 3.3 3500 3.18 96 5.0 4520 4.16 83 12 11030 7.05 58 15 12900 7.65 51 SMRT Single Sense Trim SMRT Dual Vout B Trim B SMRT Triple Vout A Trim A Trim B +Vout B TRIM UP Singles RTRIM should be connected between the Trim pin and Sense Return pin. Duals RTRIM should be connected between the Trim B pin and Vout B Return pin. This only trims output B, output A can use the sense pin to trim up only. Triples R TRIM should be connected between the Trim A pin and Vout A Return pin to adjust the Main outputs. R TRIM should be connected between the Trim B pin and Vout B Return pin to adjust the Auxiliary outputs. RTRIM = K ( Vmax - Vout ) Vout - Vnom Vout = Desired Voltage; K/Vmax/Vnom come from table below. VNOM KV MIN % OF RATED MIN VIN 3.3 3000 3.70 112 22 5.0 3000 6.26 125 22 12 5300 14.69 122 19 15 5300 18.54 124 22 SMRT Single Sense Return Trim SMRT Dual Vout B Return Trim B SMRT Triple Vout A Return Trim A Trim B Vout B Return FIGURE 1: TRIM DOWN DIAGRAMS FIGURE 2: TRIM UP DIAGRAMS Crane Aerospace & Electronics Power Solutions www.craneae.com Page 4 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

Pin Single Output Dual Output Triple Output

1 Vin Vin Vin

2 Vin Return Vin Return Vin Return

3 Inhibit Inhibit Inhibit

4 Sync In Sync In Sync In

5 Sync Return Sync Return Sync Return

8 Sense Sense A Trim B

9 Sense Return Sense A Return Vout B Neg.

10 Vout A Return Vout A Return Vout B Return

11 Vout A Vout A Vout B Pos.

12 Trim Trim B Trim A

13 Vout A Vout B Vout A

14 Vout A Return Vout B Return Vout A Return

FIGURE 3: PIN OUT TOP VIEW See case S for dimensions. Crane Aerospace & Electronics Power Solutions www.craneae.com Page 5 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

(S=single, D=dual, T=triple) (single or dual Vout for single or dual models main and aux. Vout for triple models) (OO-prototype, HP, HR, KP, KR, KF) MODEL SELECTION SMRT28 / Base model Vout value number of outputs screening Choose one from each of the following rows V out value singles: 3.3, 5, 12, 15 duals: 5,12,15 triples*: 3.312, 3.315, 512, 515 “R” = decimal point, 3R3 = 3.3VDC Number of outputs S (single), D (dual), T (triple) Screening OO** - Space prototype, HP, HR, KP, KR, KF * for triple models “3.3” and “5” indicates the main voltage, “12” or “15” indicate the ± auxiliary voltages. **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” Crane Aerospace & Electronics Power Solutions www.craneae.com Page 6 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. Notes 1. Guaranteed by design, not tested. 2. Maximum power dissipation when output is shorted. 3. Measured from release of inhibit or input voltage step. 4. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. 5. Half load to/from full load; Transition time ≥ 10 μs. 6. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 7. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 8. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of inpu t ripple current is much less, the limit in the characteristic table is based on measurement resolution. SINGLE OUTPUT MODELS SMRT283R3S SMRT2805S UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT CURRENT4 — — 6.97 0 — 6.0 A OUTPUT POWER4 VIN = 19 TO 56 VDC 0 — 23 0 — 30 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 200 mV p-p LINE REGULATION V IN = 19, 28, 50 VDC — 5 30 — 5 30 mV LOAD REGULATION — 5 40 — 5 40 mV TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION OUT INPUT VOLTAGE6, 7 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 6 — — 50 — — 110 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT8 10 kHz - 20 MHz — 10 50 — 10 50 mA p-p EFFICIENCY 65 — — 66 — — % LOAD FAULT POWER DISSIPATION 2 — — 28 — — 28 W STEP LOAD RESPONSE5 TRANSIENT -450 — 450 — — 3 -450 — 450 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 VIN TRANSIENT -500 — 500 — — 4 -500 — 500 — — 4 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 35 — — 50 — — 25 — — 50 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 5000 μF Crane Aerospace & Electronics Power Solutions www.craneae.com Page 7 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. Notes 1. Guaranteed by design, not tested. 2. Maximum power dissipation when output is shorted. 3. Measured from release of inhibit or input voltage step. 4. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. 5. Half load to/from full load; Transition time ≥ 10 μs. 6. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 7. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 8. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of inpu t ripple current is much less, the limit in the characteristic table is based on measurement resolution. SINGLE OUTPUT MODELS SMRT2812S SMRT2815S UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT CURRENT4 — — 2.92 — — 2.33 A OUTPUT POWER4 VIN = 19 TO 56 VDC 0 — 35 0 — 35 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 180 mV p-p LINE REGULATION V IN = 19, 28, 50 VDC — 5 30 — 5 30 mV LOAD REGULATION — 5 40 — 5 40 mV TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION 10.9 — 13.1 14.0 — 16.0 V out INPUT VOLTAGE6, 7 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 6 — — 50 — — 110 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT8 10 kHz - 20 MHz — 10 50 — 10 50 mA p-p EFFICIENCY 75 — — 75 — — % LOAD FAULT POWER DISSIPATION 2 — — 20 — — 20 W STEP LOAD RESPONSE5 TRANSIENT -575 — 575 — — 3 -575 — 575 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 V IN TRANSIENT -700 — 700 — — 4 -700 — 700 — — 4 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 25 — — 120 — — 25 — — 150 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 5000 μF Crane Aerospace & Electronics Power Solutions www.craneae.com Page 8 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

  1. Guaranteed by design, not tested. 2. The specified maximum current/power is available from each output. 3. Maximum power dissipation when both outputs are shorted simultaneously. 4. Measured from release of inhibit or input voltage step. 5. A minimum output load on all outputs of 2% of full load should be used on all outputs at TID of 100k rad(Si) or greater to ensure tight regulation over the full input voltage range. 6. Half load to/from full load; Transition time ≥ 10 μs. 7. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 8. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 9. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of inpu t ripple current is much less, the limit in the characteristic table is based on measurement resolution. Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. DUAL OUTPUT MODELS SMRT2805D SMRT2812D SMRT2815D UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE V OUT A 4.90 5.00 5.10 4.90 5.00 5.10 11.76 12.00 12.24 11.76 12.00 12.24 14.70 15.00 15.30 14.70 15.00 15.30 VDCVOUT B OUTPUT CURRENT2, 5 — — 3.0 0 — 1.46 — — 1.17 A OUTPUT POWER2, 5 VIN = 19 TO 56 VDC VOUT A 0 — 15 0 — 15 0 — 30 0 — 17.5 0 — 17.5 0 — 35 0 — 17.5 0 — 17.5 0 — 35 WVOUT B TOTAL OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 200 — — 180 mV p-p LINE REGULATION V IN = 19 TO 50 VDC — — 30 — 5 25 — 5 30 mV LOAD REGULATION V IN = 19, 28, 50 VDC — 5 40 — 5 50 — 5 40 mV TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION INPUT VOLTAGE7, 8 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 7 — — 50 — — 110 — — 50 — — 100 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT9 10 kHz - 20 MHz — 10 50 — 10 150 — 10 50 mA p-p EFFICIENCY 66 — — 75 — — 75 — — % LOAD FAULT POWER DISSIPATION 3 — — 28 — — 20 — — 20 W STEP LOAD RESPONSE6 TRANSIENT -450 — 450 — — 3 -450 — 450 — — 2 -575 — 575 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 V IN TRANSIENT -500 — 500 — — 4 -1000 — 1000 — — 3 -700 — 700 — — 4 mv pk msRECOVERY START-UP DELAY 4 NO LOAD AND FULL — — 25 — — 50 — — 20 — — 350 — — 25 — — 150 ms mV pkOVERSHOOT4 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C Crane Aerospace & Electronics Power Solutions www.craneae.com Page 9 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters
  1. Guaranteed by design, not tested. 2. Maximum power dissipation when all outputs are shorted simultaneously. 3. Measured from release of inhibit or input voltage step. 4. Efficiency measured with all outputs at full load. 5. Up to 1 A is available from either auxiliary output provided the total auxiliary output power does not exceed 15 watts. 6. Half load to/from full load; Transition time ≥ 10 μs. 7. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 8. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 9. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of inpu t ripple current is much less, the limit in the characteristic table is based on measurement resolution. 10. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. TRIPLE OUTPUT MODEL – SMRT283R312T 3.3 ±12 UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE + V OUT 3.23 3.30 3.37 — — — 11.76 12.00 12.24 -11.58 12.00 -12.42 VDC- VOUT OUTPUT CURRENT5, 10 — — 3 0 ±0.625 ±1 A OUTPUT POWER10 VIN = 19 TO 56 VDC 0 — 9.9 0 ±7.5 15 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 150 mV p-p LINE REGULATION VIN = 19 TO 50 VDC + VOUT — — 30 — — — — 5 30 — 10 70 mV- VOUT LOAD REGULATION NO LOAD TO FULL VIN = 19, 28, 50 VDC + VOUT — 5 40 — — — — 5 40 — 10 300 mV - VOUT TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION INPUT VOLTAGE7, 8 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 7 — — 50 — — 110 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT9 10 kHz - 20 MHz — 10 50 — 10 50 mA p-p EFFICIENCY4 68 — — 68 — — % LOAD FAULT POWER DISSIPATION 2 — — 28 — — 28 W STEP LOAD RESPONSE6 TRANSIENT -450 — 450 — — 3 -450 — 450 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 V IN TRANSIENT -500 — 500 — — 4 -750 — 750 — — 4 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 35 — 0 50 — — 25 — 0 120 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 1000 μF Crane Aerospace & Electronics Power Solutions www.craneae.com Page 10 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters
  1. Guaranteed by design, not tested. 2. Maximum power dissipation when all outputs are shorted simultaneously. 3. Measured from release of inhibit or input voltage step. 4. Efficiency measured with all outputs at full load. 5. Up to 800 mA is available from either auxiliary output provided the total auxiliary output power does not exceed 15 watts. 6. Half load to/from full load; Transition time ≥ 10 μs. 7. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 8. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 9. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 10. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. TRIPLE OUTPUT MODEL – SMRT283R315T 3.3 ±15 UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE + V OUT 3.23 3.30 3.37 — — — 14.70 15.00 15.30 -14.48 -15.00 -15.53 VDC- VOUT OUTPUT CURRENT5, 10 — — 3 0 ±0.5 ±0.8 A OUTPUT POWER10 VIN = 19 TO 56 VDC 0 — 9.9 0 ±7.5 15 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 150 mV p-p LINE REGULATION VIN = 19 TO 50 VDC + VOUT — — 30 — — — — 5 30 — 10 70 mV- VOUT LOAD REGULATION NO LOAD TO FULL VIN = 19, 28, 50 VDC + VOUT — 5 40 — — — — 5 40 — 10 300 mV - VOUT TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION INPUT VOLTAGE7, 8 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 7 — — 50 — — 110 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT9 10 kHz - 20 MHz — 10 50 — 10 50 mA p-p EFFICIENCY4 68 — — 68 — — % LOAD FAULT POWER DISSIPATION 2 — — 28 — — 28 W STEP LOAD RESPONSE6 TRANSIENT -450 — 450 — — 3 -450 — 450 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 VIN TRANSIENT -500 — 500 — — 4 -750 — 750 — — 4 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 35 — 0 50 — — 25 — 0 150 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 1000 μF Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. Crane Aerospace & Electronics Power Solutions www.craneae.com Page 11 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters
  1. Guaranteed by design, not tested. 2. Maximum power dissipation when all outputs are shorted simultaneously. 3. Measured from release of inhibit or input voltage step. 4. Efficiency measured with all outputs at full load. 5. Up to 1 A is available from either auxiliary output provided the total auxiliary output power does not exceed 15 watts. 6. Half load to/from full load; Transition time ≥ 10 μs. 7. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 8. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 9. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of input ripple current is much less, the limit in the characteristic table is based on measurement resolution. 10. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. TRIPLE OUTPUT MODEL – SMRT28512T 5 ±12 UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE + V OUT 4.90 5.00 5.10 — — — 11.76 12.00 12.24 -11.58 12.00 -12.42 VDC- VOUT OUTPUT CURRENT5, 10 — — 3.0 0 ±0.63 ±1 A OUTPUT POWER10 VIN = 19 TO 56 VDC 0 — 15 0 ±7.5 15 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 150 mV p-p LINE REGULATION VIN = 19 TO 50 VDC + VOUT — — 30 — — — — 5 30 — 20 70 mV- VOUT LOAD REGULATION NO LOAD TO FULL VIN = 19, 28, 50 VDC + VOUT — 5 40 — — — — 5 40 — 10 300 mV - VOUT TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION INPUT VOLTAGE7, 8 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 7 — — 50 — — 110 — — 50 — — 110 mANO LOAD INPUT RIPPLE CURRENT9 10 kHz - 20 MHz — 10 50 — 10 50 mA p-p EFFICIENCY4 68 — — 68 — — % LOAD FAULT POWER DISSIPATION 2 — — 25 — — 25 W STEP LOAD RESPONSE6 TRANSIENT -450 — 450 — — 3 -450 — 450 — — 3 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 VIN TRANSIENT -500 — 500 — — 4 -750 — 750 — — 4 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 25 — 0 50 — — 25 — 0 120 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 1000 μF Crane Aerospace & Electronics Power Solutions www.craneae.com Page 12 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters
  1. Guaranteed by design, not tested. 2. Maximum power dissipation when all outputs are shorted simultaneously. 3. Measured from release of inhibit or input voltage step. 4. Efficiency measured with all outputs at full load. 5. Up to 750 mA is available from either auxiliary output provided the total auxiliary output power does not exceed 15 watts. 6. Half load to/from full load; Transition time ≥ 10 μs. 7. Converter should not be inhibited or operated below 19 Vin above 5x10 4 rads (Si) total dose. 8. If 3.3S model is trimmed to the high end of its range, then minimum Vin = 22 V. 9. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-CE-102. The actual value of inpu t ripple current is much less, the limit in the characteristic table is based on measurement resolution. 10. Minimum value pre-load on all outputs of 2% of full load should be used on all outputs at TID of 100k rads(Si) and greater to ensure tight regulation over full input voltage range. Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified. TRIPLE OUTPUT MODEL – SMRT28515T 5 ±15 UNITSPARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX OUTPUT VOLTAGE + V OUT 4.92 5.00 5.08 — — — 14.77 15.00 15.23 -14.70 -15.00 -15.30 VDC- VOUT OUTPUT CURRENT5, 10 — — 3.0 0 ±0.5 ±0.75 A OUTPUT POWER10 VIN = 19 TO 56 VDC 0 — 15 0 ±7.5 15 W OUTPUT RIPPLE 10 KHZ - 20 MHZ — — 200 — — 200 mV p-p LINE REGULATION VIN = 19 TO 50 VDC + VOUT — 5 25 — — — — — 25 — 20 35 mV- VOUT LOAD REGULATION NO LOAD TO FULL VIN = 19, 28, 50 VDC + VOUT — 5 50 — — — — 5 50 — 10 500 mV - VOUT TOTAL REGULATION ALL CONDITIONS OF LINE, LOAD, AGING, TEMP AND RADIATION INPUT VOLTAGE7, 8 CONTINUOUS 19 28 56 0 — 80 19 28 56 0 — 80 VDC VTRANSIENT 100 ms INPUT CURRENT INHIBITED 7 — — 50 — — 110 — — 50 — — 110 V mANO LOAD INPUT RIPPLE CURRENT9 10 kHz - 20 MHz — 10 150 — 10 150 mA p-p EFFICIENCY4 70 — — 70 — — % LOAD FAULT POWER DISSIPATION 2 — — 25 — — 25 W STEP LOAD RESPONSE6 TRANSIENT -250 — 250 — — 1 -350 — 350 — — 1 mV pk msRECOVERY STEP LINE RESPONSE1 19 - 56 - 19 V IN TRANSIENT -500 — 500 — — 1.5 -750 — 750 — — 1.5 mV pk msRECOVERY START-UP DELAY 3 NO LOAD AND FULL — — 25 — 0 200 — — 20 — 0 350 ms mV pkOVERSHOOT3 CAPACITIVE LOAD1 UNCONDITIONALLY STABLE, START-UP DELAY INCREASED TC = 25°C — — 5000 — — 1000 μF Crane Aerospace & Electronics Power Solutions www.craneae.com Page 13 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

Seal hole: 0.123 ±0.002 (3.124 ±0.05) Angled corner indicates pin 1 6 x 0.135 dia. 12 x 0.040 dia. 1 1 2x 1.700 (43.18) 2x 1.500 (38.10) 2x 1.300 (33.02) 2x 1.100 (27.94) 2x 0.900 (22.86) 0.700 (17.78) 0.500 (12.70) 3x 2.075 (52.68) 3x 0.125 (3.15) 2x 0.150 (3.81) 7x 0.220 (5.59) 0.00 0.050 (1.27) 0.00 0.400 max (10.16) 2x 2.550 (64.77) 12 x 0.270 max (6.86) 2x 1.550 (39.37) 0.00 Materials Header Cold Rolled Steel/Nickel Cover Kovar/Nickel Pins #52 alloy, ceramic seal Case S, Rev B, 20060711 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. 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 2x 2.705 max (68.71) 3x 2.205 max (56.01) 0.262 1.675 FIGURE 4: CASE S Crane Aerospace & Electronics Power Solutions www.craneae.com Page 14 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converter Cases

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 Evaluation 4 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 Crane Aerospace & Electronics Power Solutions www.craneae.com Page 15 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

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 pull2 Method 2023 no yes 3 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 yes 3 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 yes 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 applicable to EMI filters that have no wirebonds. 3. Not required by DSCC but performed to assure product quality. Crane Aerospace & Electronics Power Solutions www.craneae.com Page 16 of 17 Rev B – 20080213 SMRT Single, Dual and Triple DC/DC Converters

CLASS H AND K, MIL-PRF-38534 RADIATION ASSURANCE RADIATION HARDNESS ASSURANCE LEVELS ENVIRONMENTAL SCREENING LEVELS SPACE PROTOTYPE (O) NON-QML3 CLASS H QML CLASS K QML O2: Standard, no radiation guarantee OO N/A N/A P: Radiation tolerant–Tested lots up to 30 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HP

4 KP4

R: Radiation tolerant–Tested lots up to 100 K Rads (Si) total dose SEU guarantee up to 40 MeV N/A HR

4 KR4

F: Radiation tolerant–Tested lots up to 300 K Rads (Si) total dose SEU guarantee up to 60 MeV N/A N/A KF Notes: 1. Our EMI filters are designed exclusively with passive components providing maximum tolerance for space environment requireme nts. 2. 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”. 3. Space Prototype (O), non-QML, products do not meet all of the requirements of MIL-PRF-38534. 4. Redmond site, Interpoint, has a Radiation Hardness assurance plan on file with DSCC. Our SMD products with RHA “P”, “R," "F" and "H" code meet DSCC requirements. Crane Aerospace & Electronics Power Solutions SMRT Single, Dual and Triple Rev B - 20080213. 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 specific ations without notice. Page 17 of 17 SMRT Single, Dual and Triple DC/DC Converters