Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Features • Input voltage range 16 to 50 volts • Transient protection up to 80 volts per MIL-STD-704A • Operating temperature -55°C to +125°C • Fully isolated, magnetic feedback • Fixed high frequency switching • Inhibit and synchronization function • Indefinite short circuit and overload protection models Output Voltage (V) Legacy MTR (40): 16 - 40 Vin, 50 V transient / 50 ms. Datasheet at www.interpoint.com/mtr40 SINGLE DUAL 3.3 ±5 5 ±12 8.5 ±15 12 15 DESCRIPTION Converter Design The Interpoint® MTR Series™ of dc-dc converters offers up to 30 watts of output power from single or dual output configurations. MTR (50) models have a wide input voltage range of 16 to 50 volts. Transient protection of up to 80 volts input meets the transient requirements of MIL-STD-704A. The converters operate over the full military temperature range with up to 81% efficiency. MTR converters are packaged in hermetically sealed metal cases, making them ideal for use in military, aerospace and other high reliability applications. The converters are offered with standard screening, “ES” screening, or fully compliant to “883” MIL-PRF-38534 Class H screening. See Table 9 on page 19 and Table 10 on page 20. Standard microcircuit drawings (SMD) are available refer to Table 3 on page 6. The MTR 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 via 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. Cover Marking MTR converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. Use our FMCE-0328™, FMCE-0528™ or FMCE0828™ EMI filter to meet the requirements of MIL-STD-461C CE03 and CS01 and/or MIL-STD-461D, E and F CE102 and CS101 levels of conducted emissions. The cover marking for the MTR 50 has “MTR (50) DC-DC CONVERTER” below the model number. Refer to Figure 8 on page 6. Crane Aerospace & Electronics Power Solutions – Interpoint Products 10301 Willows Rd. NE, Redmond, WA 98052 +1 425-882-3100 • [email protected] www.craneae.com/interpoint 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. Page 1 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt 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 duty cycle between 40% and 60%. The sync pin must be connected to input common pin when not in use. Dynamic Response The MTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 40 dB. The minimum to maximum step line transition response is typically less than 4%. Inhibit Function MTR Series 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 volts 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 volts 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 volts MTR Single Output Input Filter Positive Input Input Common Positive Output Inhibit VBIAS Sync In PWM Driver RSENSE Current Limit Voltage Feedback Output Common Input Common Input Common Case Figure 1: MTR Single Block Diagram www.craneae.com/interpoint Page 2 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt MTR Series Dual Output /883 L2 A Positive Output Input Filter Positive Input Output Common Input Common Inhibit L2 B Negative Output VBIAS Sync PWM Driver Current Limit Voltage Feedback Output Common Input Common Input Common Output Common Case Figure 2: MTR Dual Block Diagram www.craneae.com/interpoint Page 3 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt trim and Remote sense (available on single output models only) MTR SINGLE OUTPUT CONVERTER 1 POSITIVE INPUT OUTPUT COMMON SENSE RETURN POSITIVE SENSE 10 INPUT COMMON POSITIVE OUTPUT 4 1 3 6 1 RL RT 5 EXTERNAL TRIM CONNECTION 1 Make connections at converter. Trim Formulas Vout = desired output voltage; Rt = trim resistor 3.3V: Rt = 1300 * Vout 1.2475 5V: Rt = 1300 * Vout 1.2475 8.5V: Rt = 1300 * Vout 1.2475 12V: Rt = 1300 * Vout 1.2475 15V: Rt = 1300 * Vout 1.2475 – 4304 – 6512 – 11015 – 15631 – 19498 Figure 3: Trim Connection 1, 2, 3 MTR SINGLE OUTPUT CONVERTER 1 POSITIVE INPUT OUTPUT COMMON SENSE RETURN POSITIVE SENSE 10 INPUT COMMON POSITIVE OUTPUT 4 3 6 2 RL 2 5 REMOTE SENSE CONNECTION 2 Make connections at load. Figure 4: Remote Sense Connection 4 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 the 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. 3. CAUTION: The converter will be permanently damaged if the remote sense (pin 6) is shorted to ground. Damage may also result if the output common or positive output is disconnected from the load when the remote sense leads are 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 [email protected] www.craneae.com/interpoint Page 4 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Pin Out Pin Pins not in Use Inhibit 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 Leave unconnected Sync In Connect to input common Sense Lines Must be connected to appropriate outputs Table 2: Pins not in Use Table 1: Pin Out Dot on top of cover indicates pin one. Dot on top of cover indicates pin one. 1 10 2 3 4 BOTTOM VIEW MTR SINGLE FLANGED AND NON-FLANGED 9 8 7 5 1 2 3 4 5 BOTTOM VIEW MTR 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 30 on page 17 and Figure 31 on page 18. For dimensions see cases Figure 30 on page 17 and Figure 31 on page 18. Figure 5: Pin Out Single Output Models Figure 6: Pin Out Dual Output Models www.craneae.com/interpoint Page 5 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt model numbering key Base Model Input Voltage MTR 28 12 SMD Numbers D F / 883 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 (Standard screening has no designator in this position.) Standard Microcircuit Drawing (SMD) MTR Similar Part 5962-0150103HXC MTR283R3S/883 5962-9306803HXC MTR2805s/883 5962-9306903HXC MTR2812S/883 5962-9307003HXC MTR2815S/883 5962-9320503HXC MTR2805d/883 5962-9307103HXC MTR2812D/883 5962-9307203HXC MTR2815D/883 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. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from http://www.landandmaritime.dla.mil/programs/smcr Figure 7: Model Numbering Key Table 3: SMD Number Cross Reference MTR2805S INTERPOINT MTR (50) DC-DC CONVERTER SN DC CRANE AEROSPACE & ELECTRONICS TWN CAGE 50821 B Figure 8: Cover Marking for MTR (50) - 50 Vin To model Number Options determine the model number enter one option from each category in the form below. Category Base Model and Input Voltage Options MTR28 Fill in for Model # MTR28 Output Voltage 1 Number of Outputs 2 Case Options 3 Screening 4 3R3, 05, 8R5, 12, 15 S (non-flanged, leave blank) (standard, leave blank) 05, 12, 15 D F (flanged) ES 883 / Notes 1. Output Voltage: An R indicates a decimal point. 3R3 is 3.3 volts out. The values of 3.3 and 8.5 volts are 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 30 on page 17, leave the case option blank. For the flanged case option, Figure 31 on page 18, insert the letter F in the Case Option position. 4. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see Table 9 on page 19 and Table 10 on page 20. Table 4: Model Number Options www.craneae.com/interpoint Page 6 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Table 5: Operating Conditions, All Models: 25°C TC, 28 VIN, 100% load, unless otherwise specified. All Models PARAMETER CONDITIONS LEAD SOLDERING TEMPERATURE STORAGE TEMPERATURE 1 10 seconds max. 1 MIN TYP MAX UNITS — — 300 °C °C -65 — +150 CASE OPERATING FULL POWER -55 — +125 TEMPERATURE ABSOLUTE 1 -55 — +135 DERATING OUTPUT POWER/CURRENT 1 LINEARLY ESD Rating 1 MIL STD 883 Method 3015 MIL-PRF-38534, 3.9.5.8.2 Class 3B ISOLATION: input to output or any pin to case except case pinS INPUT TO OUTPUT CAPACITANCE From 100% at 125°C to 0% at 135°C @ 500 VDC at 25°C 1 CURRENT LIMIT 2 % OF FULL LOAD AUDIO REJECTION °C 1 — — >8000 V 100 — — Megohms — 50 — pF — 140 — % — 40 — dB CONVERSION FREQUENCY, Free Run -55°C TO +125°C 530 — 670 kHz SYNCHRONIZATION INPUT FREQUENCY 500 — 675 kHz -55°C TO +125°C DUTY CYCLE 1 40 — 60 % ACTIVE LOW — — 0.8 4.5 — 5.0 ACTIVE HIGH 1 REFERENCED TO INPUT COMMON IF NOT USED INHIBIT ACTIVE LOW (OUTPUT DISABLED) Do not apply a voltage to the inhibit pin. 3 CONNECT TO INPUT COMMON inhibit pin pulled low — INHIBIT PIN SOURCE CURRENT 1 — REFERENCED TO INHIBIT ACTIVE HIGH (OUTPUT ENABLED) Do not apply a voltage to the inhibit pin. V — 0.8 V — 8 mA INPUT COMMON INHIBIT PIN CONDITION OPEN COLLECTOR OR 3 UNCONNECTED OPEN INHIBIT PIN VOLTAGE 1 9 — 11 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 7 of 20 MTR-02 Rev AE - 2016.04.26 V Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) 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 CONDITIONS OUTPUT CURRENT 10 kHz - 2 MHz UNITS MAX MIN TYP MAX MIN TYP MAX 3.201 3.30 3.399 4.85 5.00 5.15 8.23 8.5 8.77 VIN = 16 to 50 V 0 — 6.06 0 — 5.0 0 — 2.94 A 0 — 20 0 — 25 0 — 25 W TC = 25°C — 10 40 — 15 70 — 15 60 — 15 50 — 15 90 — 20 60 TC = -55°C to +125°C LINE REGULATION MTR288R5S TYP VIN = 16 to 50 V OUTPUT RIPPLE MTR2805S MIN OUTPUT VOLTAGE OUTPUT POWER MTR283R3S V mV p-p VIN = 16 TO 50 V — 0 10 — 2 50 — 2 50 mV LOAD REGULATION NO LOAD TO FULL — 1 10 — 2 50 — 2 50 mV INPUT VOLTAGE CONTINUOUS 16 28 50 16 28 50 16 28 50 V NO LOAD TO FULL TRANSIENT 50 ms 1 — — 80 — — 80 — — 80 V INPUT CURRENT NO LOAD — 40 80 — 50 80 — 50 80 INHIBITED — 3 8 — 3 8 — 3 8 INPUT RIPPLE CURRENT 2 10 kHz - 10 MHz — 30 100 — 30 100 — 30 100 EFFICIENCY TC = 25°C mA mA p-p 73 74 — 75 77 — 77 81 — 71 74 — 73 76 — 76 79 — LOAD FAULT 3 TC = -55°C TO +125°C POWER DISSIPATION — 8 12 — 8 12 — 6 12 W SHORT CIRCUIT RECOVERY 1 — 1.4 6 — 1.4 5 — 1.4 5 ms STEP LOAD RESPONSE 4 TRANSIENT — ±80 ±250 — ±100 ±300 — ±150 ±400 mV pk 50% - 100% - 50% RECOVERY — 50 200 — 50 200 — 30 200 µs STEP LINE Response 1, 4 % TRANSIENT — — ±300 — ±200 ±300 — ±400 ±500 mV pk 16 - 40 - 16 V RECOVERY — — 400 — — 400 — — 400 µs START-UP 5 DELAY — 2.5 5 — 2.5 5 — 2.5 5 ms FULL LOAD OVERSHOOT 1 — 0 50 — 0 80 — 0 150 mV pk CAPACITIVE LOAD 1 NO EFFECT ON DC — — 3000 — — 3000 — — 3000 µF PERFORMANCE Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. 3. Indefinite short circuit protection not guaranteed above 125°C case. www.craneae.com/interpoint 4. Recovery time is measured from application of the transient to point at which VOUT is within 1% of final value. 5. Tested on release from inhibit. Page 8 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) 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 MTR2812S CONDITIONS OUTPUT VOLTAGE VIN = 16 to 50 V OUTPUT CURRENT OUTPUT POWER VIN = 16 to 50 V OUTPUT RIPPLE TC = 25°C 10 kHz - 2 MHz LINE REGULATION LOAD REGULATION INPUT VOLTAGE INPUT CURRENT INPUT RIPPLE CURRENT 2 EFFICIENCY LOAD FAULT 3 SHORT CIRCUIT UNITS MIN TYP MAX MIN TYP MAX 11.64 12.00 12.36 14.55 15.00 15.45 0 — 2.5 0 — 2.0 A 0 — 30 0 — 30 W V — 10 40 — 10 40 TC = -55°C to +125°C — 15 90 — 15 90 VIN = 16 TO 50 V — 2 50 — 2 50 mV NO LOAD TO FULL — 2 50 — 2 50 mV CONTINUOUS 16 28 50 16 28 50 V — — 80 — — 80 V NO LOAD — 50 80 — 50 80 INHIBITED — 3 8 — 3 8 — 35 100 — 35 100 TC = 25°C TRANSIENT 50 ms 1 NO LOAD TO FULL MTR2815S 10 kHz - 10 MHz mV p-p mA mA p-p 77 80 — 79 80 — TC = -55°C TO +125°C 75 77 — 75 77 — POWER DISSIPATION — 6 12 — 5 12 W RECOVERY 1 — 1.4 5 — 1.4 5 ms % STEP LOAD RESPONSE 4 TRANSIENT — ±150 ±400 — ±150 ±500 mV pk 50% - 100% - 50% RECOVERY — 30 200 — 30 200 µs TRANSIENT — ±400 ±500 — ±500 ±600 mV pk RECOVERY — — 400 — — 400 µs START-UP 5 DELAY — 2.5 5 — 2.5 5 ms FULL LOAD OVERSHOOT 1 — 0 180 — 0 180 mV pk — — 3000 — — 3000 µF STEP LINE Response 16 - 40 - 16 V CAPACITIVE LOAD 1 1, 4 NO EFFECT ON DC PERFORMANCE Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. 3. Indefinite short circuit protection not guaranteed above 125°C case. www.craneae.com/interpoint 4. Recovery time is measured from application of the transient to point at which VOUT is within 1% of final value. 5. Tested on release from inhibit. Page 9 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) 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 PARAMETER OUTPUT VOLTAGE MTR2805D CONDITIONS + VOUT - VOUT MTR2812D MTR2815D MIN TYP MAX MIN TYP MAX MIN TYP MAX 4.850 5.00 5.150 11.64 12.00 12.36 14.55 15.00 15.45 4.825 5.00 5.172 11.58 12.00 12.42 14.47 15.00 15.53 OUTPUT CURRENT 2 EITHER OUTPUT 0 2.5 4.5 1 0 1.25 2.25 1 0 1.00 1.80 1 VIN = 16 to 50 V TOTAL OUTPUT — — 5 — — 2.5 — — 2.00 OUTPUT POWER 2 EITHER OUTPUT 0 12.5 22.5 1 0 15 27 1 0 15 27 1 VIN = 16 to 50 V TOTAL OUTPUT — — 25 — — 30 — — 30 TC = 25°C — 5 40 — 20 80 — 20 80 — 10 90 — 30 120 — 20 120 + VOUT — 2 50 — 2 50 — 2 50 5 100 — 20 150 — 40 180 + VOUT OUTPUT RIPPLE 10 kHz - 2 MHz ± VOUT LINE REGULATION TC = -55°C to +125°C VIN = 16 TO 50 V - VOUT — — 2 50 — 2 50 — 2 50 NO LOAD TO FULL - VOUT — 10 100 — 20 150 — 20 180 LOAD REGULATION UNITS V A W mV p-p mV mV CROSS REGULATION 1 SEE NOTE 3 — 6 10 — 3 6 — 3 6 effect on -Vout, 25°C SEE NOTE 4 — 9 14 — 5 9 — 6 9 16 28 50 16 28 50 16 28 50 V V INPUT VOLTAGE NO LOAD TO FULL INPUT CURRENT INPUT RIPPLE CURRENT 5 EFFICIENCY BALANCED LOAD LOAD FAULT 6 CONTINUOUS TRANSIENT 50 ms. 1 — — 80 — — 80 — — 80 NO LOAD — 50 90 – 60 90 — 60 90 INHIBITED — 3 8 — 3 8 — 3 8 — 25 100 — 30 100 — 30 100 76 79 — 76 80 — 78 80 — 73 78 — 74 77 — 75 77 — — 7 12 — 5 12 — 5 12 10 kHz - 10 MHz TC = 25°C TC = -55°C to +125°C POWER DISSIPATION 1 % mA mA p-p % W SHORT CIRCUIT RECOVERY STEP LOAD RESPONSE 7 TRANSIENT 50% - 100% - 50% ± VOUT STEP LINE RESPONSE 1, 7 RECOVERY — 70 200 — 10 200 — 10 200 µs TRANSIENT — ±200 ±400 — ±200 ±400 — ±400 ±500 mV pk 16 - 40 - 16 V ± VOUT RECOVERY — — 400 — — 400 — — 400 µs START-UP 8 DELAY — 2.5 5 — 2.5 5 — 2.5 5 ms FULL LOAD OVERSHOOT 1 — 0 180 — 0 180 — 0 180 mV pk CAPACITIVE LOAD 1, 9 NO EFFECT ON DC — — 1500 — — 1500 — — 1500 µF PERFORMANCE — 1.4 5.0 — 1.4 5.0 — 1.4 5.0 ms — ±80 ±300 — ±130 ±300 — ±120 ±400 mV pk Notes 1. Guaranteed by qualification test and/or analysis. Not an in-line test. 2. 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. 3. Effect on negative VOUT from 50%/50% loads to 80%/20% or 20%/80% loads. 4. Effect on negative VOUT from 50%/50% loads to 90%/10% or 10%/90% loads. See Figure 21 on page 14. 5. Tested with 6800 pF ceramic bypass capacitor connected externally from input common to case. www.craneae.com/interpoint 6. Indefinite short circuit protection not guaranteed above 125°C case. 7. Recovery time is measured from application of the transient to point at which VOUT is within 1% of final value. 8. Tested on release from inhibit. 9. Applies to each output. Page 10 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. MTR2805S Audio Rejection otherwise specified. MTR2805S Step Load 50% - 100% - 50% Figure 9 Figure 10 MTR2805S Step Line 16 - 40 Volts MTR2805S Step Line 40 - 16 Volts Figure 11 www.craneae.com/interpoint Figure 12 Page 11 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. MTR2805S Start-up into No Load, 3000 µF Cap Load Figure 13 MTR2805S Start-up into No Load Figure 14 85 85 16 V EFFICIENCY (%) EFFICIENCY (%) 28 V 75 42 V 65 16 V 80 75 28 V 50 V 55 otherwise specified. 70 42 V 50 V 65 60 55 50 45 45 4 8 12 16 20 40 WATTS 20% 100% OUTPUT POWER MTR283R3S Efficiency 20% 10 15 WATTS 20 OUTPUT POWER MTR2805S Efficiency Figure 16 Figure 15 www.craneae.com/interpoint 5 Page 12 of 20 MTR-02 Rev AE - 2016.04.26 25 100% Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. 90 90 16 V 16 V 80 28 V 42 V EFFICIENCY (%) EFFICIENCY (%) 80 70 50 V 60 50 5 10 15 20 WATTS 20% 25 50 100% 42 V 50 V 75 5 10 15 20 WATTS 20% 25 100% OUTPUT POWER MTR2815S Efficiency Figure 19 www.craneae.com/interpoint 20% 10 15 20 WATTS Figure 18 80 70 5 MTR2812S Efficiency 90 28 V 50 V OUTPUT POWER Figure 17 16 V 42 V 60 MTR288R5S Efficiency 85 28 V 70 OUTPUT POWER EFFICIENCY (%) otherwise specified. Page 13 of 20 MTR-02 Rev AE - 2016.04.26 25 30 100% Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. otherwise specified. 10 -Vout Voltage Change (%) 8 MTR2815D 6 4 MTR2812D 2 0 -2 MTR2805D -4 -6 -8 -10 10/90 30/70 50/50 70/30 Output Load (+Vout/-Vout %) MTR2815D Audio Rejection MTR Cross Regulation Figure 20 Figure 21 MTR2815D Step Load 50% - 100% - 50% MTR2815D Step Line 16 - 40 Volts Figure 22 Figure 23 www.craneae.com/interpoint Page 14 of 20 MTR-02 Rev AE - 2016.04.26 90/10 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. MTR2815D Step Line 40 - 16 Volts otherwise specified. MTR2815D Start-up into No Load, 1500 µF Cap Load Each Figure 24 Figure 25 85 16 V 80 28 V EFFICIENCY (%) 75 50 V 42 V 70 65 60 55 50 5 20% 10 15 20 WATTS OUTPUT POWER MTR2815D Start-up into No Load MTR2805D Efficiency Figure 26 Figure 27 www.craneae.com/interpoint Page 15 of 20 MTR-02 Rev AE - 2016.04.26 25 100% Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Typical Performance Plots: 25°C case, 28 Vin, 100% load, free run, unless For reference only, not guaranteed specifications. 85 90 16 V EFFICIENCY (%) 75 42 V 28 V 50 V 70 16 V 85 42 V 28 V EFFICIENCY (%) 80 65 60 50 V 80 75 70 55 50 otherwise specified. 5 10 15 20 WATTS 20% 25 30 65 100% 5 20% 10 15 20 WATTS OUTPUT POWER OUTPUT POWER MTR2812D Efficiency MTR2815D Efficiency Figure 28 Figure 29 www.craneae.com/interpoint Page 16 of 20 MTR-02 Rev AE - 2016.04.26 25 100% Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt BOTTOM VIEW MTR SINGLE AND DUAL 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 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 1.845 (46.86) 0.155 (3.94) 0.245 (6.22) DUAL 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 included in pin diameter Seal hole 0.120 ±0.002 (3.05 ± 0.05) Case H2 MTR SD, Rev L, 2015.04.21 Please refer to the numerical dimensions for accuracy.. Figure 30: Case H2 www.craneae.com/interpoint Page 17 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt BOTTOM VIEW MTR SINGLE AND DUAL FLANGED 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 2 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 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 MTR SD F, Rev M, 2015.04.21 Please refer to the numerical dimensions for accuracy. Figure 31: Case K3 www.craneae.com/interpoint Page 18 of 20 MTR-02 Rev AE - 2016.04.26 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 MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Table is for reference only. See individual Series' datasheets for specific screening. element eValuatiOn 1 high reliability /883 (claSS h) Qml claSS h /883 m/S 2 p3 Element Electrical n n Visual n n Internal Visual n Final Electrical n n Wire Bond Evaluation n n cOmpOnent-leVel teSt perfOrmed Notes 1. Element evaluation does not apply to standard and /ES product. 2. M/S = Active components (microcircuit and semiconductor die). 3. P = Passive components, Class H element evaluation. Not applicable to standard and /ES element evaluation. Table 9: Element Evaluation tabLe 8: eLeMent evaLuation high reLiabiLity DC-DC Converters anD eMi FiLters /883 (CLass h) www.craneae.com/interpoint Page 19 of 20 MTR-02 Rev AE - 2016.04.26 Crane Aerospace & Electronics Power Solutions MTR (50) Single and Dual DC-DC Converters 28 (16-50) Volt input – 30 Watt Table is for reference only. See individual Series' datasheets for specific screening. enVirOnmental Screening high reliability Standard, /eS and /883 (claSS h) nOn-Qml 1 teSt perfOrmed Pre-cap Inspection, Method 2017, 2032 Qml 2 Standard /eS claSS h /883 n n n temperature Cycle (10 times) Method 1010, Cond. C, -65°C to +150°C, ambient n Method 1010, Cond. B, -55°C to +125°C, ambient n Constant acceleration Method 2001, 3000 g n Method 2001, 500 g n n3 PIND, test Method 2020, Cond. a burn-in Method 1015, +125°C case, typical 4 96 hours n 160 hours n Final electrical test, MIl-PrF-38534, group a, Subgroups 1 through 6, -55°C, +25°C, +125°C case Subgroups 1 and 4, +25°C case n n n Hermeticity test Gross Leak, Cond. C1, fluorocarbon Fine Leak, Cond. A2, helium Gross Leak, Dip n n n n n n n Final visual inspection, Method 2009 n Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534. Notes 1. Standard and ES are non-QML products and may not meet all of the requirements of MIL-PRF-38534. 2. All processes are QML qualified and performed by certified operators. 3. Not required by DLA but performed to assure product quality. 4. Burn-in temperature designed to bring the case temperature to +125°C minimum. Burn-in is a powered test. Table 10: Environmental Screening tabLe 9: environMentaL sCreening high reLiabiLity DC-DC Converters anD eMi FiLters stanDarD, /es anD /883 (CLass h) MTR (50) Single and Dual, MTR-02 Rev AE - 2016.04.26. 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. MTR Series is a trademark of Crane Electronics, Inc. Copyright © 1999 - 2016 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint Page 20 of 20