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Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
FEATURES
* -55 to +125C operation * 16 to 40 VDC input * Fully isolated * Magnetic feedback * Fixed frequency 600 kHz typical * Topology - Single Ended Forward * 50 V for up to 50 ms transient protection * Inhibit and synchronization functions * Indefinite short circuit protection * Up to 30 watts output power * Trim and remote sense on single output models * Up to 84% efficiency
MODELS
VDC OUTPUT SINGLE DUAL TRIPLE 3.3 5 +5 & 12 5 12 +5 & 15 12 15 15 18
DESCRIPTION
The MTR SeriesTM of DC/DC converters offers up to 30 watts of output power from single, dual, or triple output configurations. They operate over the full military temperature range with up to 84% efficiency. MTR converters are packaged in hermetically sealed metal cases, making them ideal for use in military, aerospace and other high reliability applications.
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. MTR 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. Contact your Interpoint representative for further details.
CONVERTER DESIGN
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 and shunt regulators. The MTR Series triple output DC/DC converter's design includes individual regulators on the auxiliary outputs which provide for no cross regulation error when a minimum 500 mA load is maintained on the main (+5) output.
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 must be connected to input common pin when not in use.
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 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
OPERATING CONDITIONS AND CHARACTERISTICS
Input Voltage * 16 to 40 VDC continuous * 50 V for 50 msec transient Output Power * 25 to 30 watts depending on model Lead Soldering Temperature (10 sec per pin) * 300C Storage Temperature Range (Case) * -65C to +135C Case Operating Temperature (Tc) * -55C to +125C full power * -55C to +135C absolute Derating Output Power/Current * Linearly from 100% at 125C to 0% at 135C Output Voltage Temperature Coefficient * 100 ppm/C typical single and dual outputs * 200 ppm/C main typical, 300 ppm/C aux triple output typical Input to Output Capacitance * 50 pF typ (100 pF typical triple outputs) Current Limit * 115% of full load typical Isolation * 100 megohm minimum at 500 V Audio Rejection * 40 dB typ (50 dB typical triple output)l Conversion Frequency * Free run 550 min, 600 typical, 650 max kHz duals and singles Free run 525 min, 600 typical, 650 max kHz triples * External sync 500 to 675 kHz singles and duals External sync 500 to 700 kHz triples
SYNC AND INHIBIT
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 (referenced to input common) * Logic low (output disabled), 0.8 V Inhibit pin current 8.0 mA max for singles & duals, 6.0 mA for triples * Logic high (output enabled) Input pin voltage, unit enabled, 9 to 11 V
MECHANICAL AND ENVIRONMENTAL
Size (maximum) Non-flanged Single and dual output
2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm) See case H2 for dimensions. MTR Dual with standard or ES screening, ht 0.417", (10.59 mm) See Case H4 for dimensions. 1.950 x 1.350 x 0.405 inches (49.53 x 34.29 x 10.29 mm) See case F1 for dimensions.
Triple output Flanged Single and dual output
2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm) See case K3 for dimensions. MTR Dual with standard or ES screening, ht. 0.417", (10.59 mm) See case K5 for dimensions. 2.720 x 1.350 x 0.405 inches (69.09 x 34.29 x 10.29 mm) See case J1 for dimensions.
Triple output
Weight (maximum) Single and dual non-flanged 50 grams, flanged 52 grams Triple non-flanged 58 grams, flanged 62 grams Screening Standard, ES, or /883 (Class H, QML). See "883, Class H, QML Products - Element Evaluation" and "883, Class H, QML Products - Environmental Screening" for more information.
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Page 2 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
PIN OUT 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 Triple Output Positive Input Main (+5) Output Output Common Neg. Aux. Output Pos. Aux. Output Case Ground Case Ground Inhibit Sync Input Common
Inhibit Sync In Sense Lines
PINS NOT IN USE
Leave unconnected Connect to input common Must be connected to appropriate outputs
Dot on top of cover indicates pin one.
1
2
3
4
5
BOTTOM VIEW MTR SINGLE FLANGED AND NON-FLANGED
10 9 8 7 6
Dotted line outlines flanged package option.
See cases H2, H4, K3 and K5 for dimensions.
FIGURE 1: PIN OUT SINGLE OUTPUT MODELS
Squared corner and dot on top of package indicate pin one. Dot on top of cover indicates pin one.
1 1 2 3 4 5
2
3
4
5
BOTTOM VIEW MTR DUAL FLANGED AND NON-FLANGED
10 9 8 7 6
BOTTOM VIEW MTR TRIPLE FLANGED AND NON-FLANGED
10 9 8 7 6
Dotted line outlines flanged package option.
See cases H2, H4, K3 and K5 for dimensions.
Dotted line outlines flanged package option.
See cases F1 and J1 for dimensions.
FIGURE 2: PIN OUT DUAL OUTPUT MODELS
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FIGURE 3: PIN OUT TRIPLE OUTPUT MODELS
Page 3 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
MTR SINGLE OUTPUT CONVERTER 1 +VIN OUTPUT COMMON SENSE RETURN SENSE INPUT COMMON POSITIVE OUTPUT 4 1 3 6 1 RT 5 RL
10
EXTERNAL TRIM CONNECTION
1 Make connections at converter.
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 FIGURE 4: TRIM CONNECTION1, 2, 3
MTR SINGLE OUTPUT CONVERTER 1 +VIN OUTPUT COMMON SENSE RETURN SENSE INPUT COMMON POSITIVE OUTPUT 4 2 3 6 2 RL
10
5
REMOTE SENSE CONNECTION
2 Make connections at load.
FIGURE 5: REMOTE SENSE CONNECTION
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.
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Page 4 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
MODEL NUMBERING KEY
MTR Base Model Input Voltage Output Voltage (Main and aux. Vout for triple models) Number of Outputs (S = single, D = dual, T = triple) Case Option ("F" indicates flanged option, non-flanged case has no designator in this position) Screening (Standard screening has no designator in this position.) 28 512 T F / 883
SMD NUMBERS
STANDARD MICROCIRCUIT DRAWING (SMD) 5962-0150101HXC 5962-9306801HXC 5962-9306901HXC 5962-9307001HXC 5962-9320201HXC 5962-9320501HXC 5962-9307101HXC 5962-9307201HXC 5962-9307301HXC 5962-9307401HXC MTR SERIES SIMILAR PART MTR283R3S/883 MTR2805S/883 MTR2812S/883 MTR2815S/883 MTR2818S/883 MTR2805D/883 MTR2812D/883 MTR2815D/883 MTR28512T/883 MTR28515T/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, nonflanged. For exact specifications for an SMD product, refer to the SMD drawing. SMDs can be downloaded from: http://www.dscc.dla.mil/programs/smcr
Model Selection
MTR28 Base model
Vout value
number of outputs
case option
screening
Choose one from each of the following rows Vout value Number of outputs Case option Screening for singles or duals: 5, 12, or 15 S (single) D (dual) non-flanged case option, leave blank standard screening, leave blank for triples*: 512 or 515 or T (triple) F (flanged case option) /ES (ES screening), /883 (Class H, QML)
* for triple output models "5" indicates the main voltage, "12" or"15" indicate the auxiliary voltages.
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Page 5 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT2 OUTPUT POWER2 OUTPUT RIPPLE VOLTAGE LINE REGULATION3 LOAD REGULATION INPUT VOLTAGE2 NO LOAD TO FULL INPUT CURRENT2 INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT4 VIN = 16 to 40 VDC VIN = 16 to 40 VDC 10 kHz - 2 MHz Tc = -55C TO +125C Vin = 16 to 40 VDC Tc = -55C TO +125C NO LOAD TO FULL Tc = -55C TO +125C CONTINUOUS TRANSIENT 50 ms NO LOAD INHIBITED 10 kHz - 10 MHz Tc = -55C TO +125C SHORT CIRCUIT POWER DISSIPATION RECOVERY1, 2, 5 50% - 100% - 50% TRANSIENT RECOVERY1, 4 16 - 40 - 16 VDC TRANSIENT6 RECOVERY5 DELAY OVERSHOOT FULL LOAD1 NO LOAD1 NO EFFECT ON DC PERFORMANCE CONDITION
MTR283R3S MIN 3.27 0 0 -- -- -- -- -- -- 16 -- -- -- -- 74 -- -- -- -- -- -- -- -- -- -- TYP 3.30 -- -- 15 -- 5 -- 2 -- 28 -- 30 7 25 76 10 1.4 MAX 3.34 6.06 20 40 50 10 10 10 10 40 50 75 8 50 -- -- 6
MTR2805S MIN 4.95 0 0 -- -- -- -- -- -- 16 -- -- -- -- 76 -- -- -- -- -- -- -- -- -- -- TYP 5.00 -- -- 35 50 10 15 5 15 28 -- 35 3 20 78 10 1.4 MAX 5.0 25 50 90 50 50 50 50 40 50 75 8 50 -- -- 5
MTR2812S MIN 0 0 -- -- -- -- -- -- 16 -- -- -- -- 80 -- -- -- -- -- -- -- -- -- -- TYP -- -- 25 40 10 15 5 15 28 -- 35 3 20 83 10 1.4 MAX 2.5 30 40 90 50 50 50 50 40 50 75 8 50 -- -- 5
MTR2815S MIN 0 0 -- -- -- -- -- -- 16 -- -- -- -- 81 -- -- -- -- -- -- -- -- -- -- TYP -- -- 25 40 10 15 5 15 28 -- 35 3 20 84 10 1.4 MAX 2.0 30 40 90 50 50 50 50 40 50 75 8 50 -- -- 5
MTR2818S MIN 0 0 -- -- -- -- -- -- 16 -- -- -- -- 81 -- -- -- -- -- -- -- -- -- -- TYP MAX UNITS VDC A W mV p-p mV mV VDC V mA mA mA p-p % -- -- -- -- -- -- -- -- 28 -- -- -- -- 84 10 1.4 -- 60 500 300 -- 0 -- -- 1.67 30 40 90 50 50 50 50 40 50 75 8 50 -- W 5 600 -- -- -- 5 -- -- 2000 ms mV pk s mV pk s ms
5.05 11.88 12.00 12.12 14.85 15.00 15.15 17.82 18.00 18.18
STEP LOAD RESP.
125 250 -- 200 -- -- 1.4 0 33 -- 300 300 5 50 150 300
200 300 60 200 200 300 -- 300 1.4 0 50 -- 5 50 250 300
250 400 60 200 400 500 -- 300 1.4 0 120 -- 5 120 600 3000
350 500 60 200 500 600 -- 300 1.4 0 150 -- 5 150 750 3000
STEP LINE RESP.1
START-UP2, 7
mV pk
CAPACITIVE LOAD1
F
Notes 1. Guaranteed, not tested. 2. Tc = -55C to +125C 3. Operation is limited below 16V (see Figure 22). 4. Indefinite short circuit protection not guaranteed above 125C 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 s. 7. Tested on release from inhibit.
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Page 6 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS PARAMETER OUTPUT VOLTAGE OUTPUT CURRENT2, 3 OUTPUT POWER2, 3 OUTPUT RIPPLE VOLTAGE +/- VOUT LINE REGULATION4 VIN = 16 TO 40 VDC Tc = -55C TO +125C LOAD REGULATION NO LOAD TO FULL Tc = -55C TO +125C CROSS REGULATION1 EFFECT ON -VOUT INPUT VOLTAGE2 NO LOAD TO FULL INPUT CURRENT INPUT RIPPLE CURRENT2 EFFICIENCY LOAD FAULT7 SEE NOTE 5 SEE NOTE 6 CONTINUOUS TRANSIENT 50 ms NO LOAD INHIBITED 10 kHz - 10 MHz POWER DISSIPATION SHORT CIRCUIT2 RECOVERY1 50 - 100 - 50% BALANCED TRANSIENT RECOVERY1, 8 16 - 40 - 16 VIN TRANSIENT9 RECOVERY8 DELAY OVERSHOOT FULL LOAD1 NO LOAD1 CAPACITIVE LOAD1 NO EFFECT ON DC PERFORMANCE -- -- 500 -- -- 500 -- -- 500 F -- -- 0 50 50 250 -- -- 0 120 120 600 -- -- 0 150 150 750 mV pk CONDITIONS +VOUT -VOUT VIN = 16 TO 40 VDC VIN = 16 TO 40 VDC 10 kHz - 2 MHz Tc = -55C TO +125C +VOUT -VOUT +VOUT -VOUT +VOUT -VOUT +VOUT -VOUT MTR2805D MIN TYP MAX 4.95 5.00 5.05 4.92 0 0 -- -- -- -- -- -- -- -- -- -- -- -- 16 0 -- -- -- 76 -- -- -- -- -- -- -- 5.00 2.5 -- 20 40 10 50 10 50 5 25 5 25 7 4 28 -- 35 3 15 78 10 1.4 200 100 200 -- 1.4 5.08 4.5 25 40 90 50 100 50 100 50 100 50 100 12 6 40 50 75 8 50 -- -- 5.0 300 200 400 300 5 MTR2812D MIN TYP MAX 11.88 12.00 12.12 11.82 0 0 -- -- -- -- -- -- -- -- -- -- -- -- 16 0 -- -- -- 78 -- -- -- -- -- -- -- 12.00 1.25 -- 30 40 10 50 10 50 15 30 15 30 4 4 28 -- 50 3 20 81 10 1.4 150 100 200 -- 1.4 12.18 2.25 30 80 120 50 150 50 150 50 150 50 150 8.3 6 40 50 75 8 50 -- -- 5.0 300 200 400 300 5 MTR2815D MIN TYP MAX 14.85 15.00 15.15 14.77 15.00 0 0 -- -- -- -- -- -- -- -- -- -- -- -- 16 0 -- -- -- 80 -- -- -- -- -- -- -- 1.0 -- 25 40 10 50 10 50 15 30 15 30 3 4 28 -- 50 3 20 83 10 1.4 200 100 400 -- 1.4 15.23 1.8 30 80 120 50 180 50 180 50 180 50 180 8 6 40 50 75 8 50 -- -- 5.0 400 200 500 300 5 % VDC V mA mA mA p-p % W ms mV pk s mV pk s ms mV mV A W mV p-p UNITS VDC
STEP LOAD RESPONSE VOUT STEP LINE1 RESPONSE VOUT START-UP2, 10
Notes 1. Guaranteed, not tested. 2. Tc = -55C to +125C. 3. 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. 4. Operation is limited below 16 V (see Figure 22). 5. Effect on negative Vout from 50%/50% loads to 80%/20% or 20%/80% loads.
6. Effect on negative Vout from 50%/50% loads to 90%/10% or 10%/90% loads. 7. Indefinite short circuit protection not guaranteed above 125C 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 s. 10. Tested on release from inhibit.
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Page 7 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Electrical Characteristics: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
TRIPLE OUTPUT MODELS PARAMETER OUTPUT VOLTAGE CONDITION MAIN + AUXILIARY - AUXILIARY OUTPUT CURRENT2 VIN = 16 TO 40 OUTPUT POWER2 VIN = 16 TO 40 MAIN + AUXILIARY - AUXILIARY MAIN + AUXILIARY - AUXILIARY TOTAL OUTPUT RIPPLE VOLTAGE LINE REGULATION VIN = 16 TO 40 LOAD REGULATION3, 4 INPUT VOLTAGE 10 kHz to 2 MHz MAIN AUXILIARY MIN 4.95 11.82 11.82 0.3 -- -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- 72 POWER DISSIPATION SHORT CIRCUIT ALL OUTPUTS SHORTED TOTAL RECOVERY EACH OUTPUT1 STEP LOAD RESPONSE TRANSIENT6 RECOVERY7 STEP LINE RESPONSE VIN = 16 TO 40 START-UP8
1
MTR28512T TYP 5.0 12.0 12.0 -- 0.416 0.416 20 5 5 -- 50 20 10 25 10 30 28 -- 70 3.0 20 75 MAX 5.05 12.18 12.18 4.0 0.750 0.750 20 9 9 30 125 60 20 75 50 75 40 50 100 6 45 -- MIN 4.95 14.77 14.77 0.3 -- -- -- -- -- -- -- -- -- -- -- -- 16 -- -- -- -- 73
MTR28515T TYP 5.0 15.0 15.0 -- 0.333 0.333 20 5 5 -- 50 20 10 30 10 30 28 -- 70 3.0 20 75 MAX 5.05 15.23 15.23 4.0 0.600 0.600 20 9 9 30 125 60 20 75 50 75 40 50 120 6 45 -- mA mA mA p-p % VDC mV mV p-p mV W A VDC UNITS
MAIN AUXILIARY MAIN AUXILIARY CONTINUOUS TRANSIENT 50 ms
INPUT CURRENT INPUT RIPPLE CURRENT EFFICIENCY LOAD FAULT5
NO LOAD INHIBITED 10 kHz TO 10 MHz
-- -- -- -- -- -- -- -- -- -- --
14 4 150 500 0.05 3 150 100 4 0 0
-- 6.0 250 800 0.10 4 250 250 6.0 500 1500
-- -- -- -- -- -- -- -- -- -- --
14 4 150 500 0.05 2 150 100 4 0 0
-- 6.0 250 800 0.10 4 250 250 6.0 500 1500
W ms mV pk ms mV pk ms mV
MAIN AUXILIARY MAIN AUXILIARY MAIN AUXILIARY MAIN1 AUXILIARY1
TRANSIENT
DELAY OVERSHOOT
Notes 1. Guaranteed, not tested. 2. The sum of the two aux outputs is not to exceed 10 watts. The maximum load per aux output is 9 watts. 3. To maintain regulation when operating the Aux at full load, a minimum load of 300 mA is required on the main. 4. Measured on each output one at a time with the other outputs at full load.
5. Indefinite short circuit protection not guaranteed above 125C (case). 6. Response of each output as all outputs are simultaneously transitioned. Main: 50% - 100% - 50% of main full load Auxiliaries: 25% - 50% - 25% each, of total auxiliary full load 7. Recovery time is measured from application of the transient to point at which Vout is within 1% of regulation. 8. Tested on release from inhibit.
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Page 8 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Typical Performance Curves: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
85 16V 80
85 16V 80
87 16V 82 28V
EFFICIENCY (%)
EFFICIENCY (%)
EFFICIENCY (%)
28V 75
28V 75 40V 70
77 40V 72
70 40V 65
65
67
60
5
10
15
20
25
60
62 5 10 15 20
5
10
15
20
25
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
MTR2805S EFFICIENCY
MTR2812S EFFICIENCY
MTR2815S EFFICIENCY
FIGURE 6
FIGURE 7
FIGURE 8
85 16V 80 28V
90 0 85 16V 10
EFFICIENCY (%)
EFFICIENCY (%)
ATTENUATION (dB)
20
28V 80
20 30 40 50 60 70 80 90
75
70 40V 65
75
40V
70
60
5
10
15
20
65
5
10
15
OUTPUT POWER (Watts)
100 0.1
1
10
100
MTR2812D EFFICIENCY
OUTPUT POWER (Watts)
FREQUENCY (kHz)
MTR2815D EFFICIENCY
AUDIO REJECTION, MTR SERIES
FIGURE 9
FIGURE 10
FIGURE 11
20V/div
25W to 12.5W 25W to 2.5W VIN
100mV/div
20mV/div
200mV/div
VOUT 12.5W to 25W
2.5W to 25W
50s/div 16 TO 40V
50s/div 50% 100%
50s/div 10% 100%
MTR2805S STEP LINE RESPONSE
MTR2805S STEP LOAD RESPONSE
MTR2805S STEP LOAD RESPONSE
FIGURE 12
FIGURE 13
FIGURE 14
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Page 9 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Typical Performance Curves: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
20V/div
20V/div
VIN 15W to 7.5W +VOUT
-POUT =15W
1V/div
20mV/div
100mV/div
7.5W to 15W
VIN
VOUT
-VOUT
500 s / div
MTR2805S TURN-ON INTO NO LOAD
50s/div 16 TO 40
50s/div 25% 50%
MTR2815D STEP LINE RESPONSE
MTR2815D +VOUT STEP LOAD RESPONSE
FIGURE 15
FIGURE 16
FIGURE 17
15W to 3W
100mV/div
VIN +VOUT
3W to 15W
-VOUT
50s/div 10% 100%
200s/div
10 9 8 7 2812D 6 5 4 2805D 3 2 2815D 1 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
-VOUT VOLTAGE CHANGE (%)
5V/div
20V/div
MTR2815D +VOUT STEP LOAD RESPONSE
MTR2815D TURN-ON INTO NO LOAD
OUTPUT LOAD (Watts) 10% to 90% LOAD +V 90% to 10% LOAD -V
CROSS REGULATION
FIGURE 18
FIGURE 19
FIGURE 20
8 7 6 5 4 3 2 1 0 -1 -2 -3 -4 -5 -6 -7 -8
16.0 80 15.5 2805D COND A 2815D COND B 2805D 2812D 16V 75
-VOUT VOLTAGE CHANGE (%)
INPUT VOLTAGE (Volts)
2812D
15.0
EFFICIENCY (%)
40V 70 28V 65
14.5
14.0
13.5
60 13.0 10 20 30 40 50 9 12 15 18 21 24 27 30 55 5 10 15 20 25 30
OUTPUT LOAD (%) COND. B: 50% LOAD +V, 50% to 10% -V COND. A: 50% LOAD -V, 50% to 10% +V
OUTPUT POWER (Watts) 1% DROP
CROSS REGULATION
MTR SINGLES AND DUALS LOW LINE DROPOUT
OUTPUT POWER (WATTS)
MTR28512T EFFICIENCY
FIGURE 21
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FIGURE 22
Page 10 of 19 Rev G - 20060505
FIGURE 23
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
Typical Performance Curves: 25C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
80 16V 75 0 10 20
20V/div 100mV/div
1 10 100
EFFICIENCY (%)
40V 70 28V 65
ATTENUATION (dB)
30 40 50 60 70 80 90
VIN +5 VOUT
+AUX
60
-AUX
55
5
10
15
20
25
30
100 0.1
OUTPUT POWER (WATTS)
FREQUENCY (kHz)
50s/div 16V TO 40V
MTR28515T EFFICIENCY
MTR SERIES AUDIO REJECTION
MTR28515T STEP LINE RESPONSE
FIGURE 24
FIGURE 25
FIGURE 26
100mV/div
20V/div
20V/div 5V/div
+5 V 50% to 100% 50 s/div
VIN
VIN
+AUX
15 VOUT
200mV/div
1ms/div 50% to 100% -AUX
2V/div
+5 VOUT
50%
100%
500 s/div
500s/div
MTR28515T STEP LOAD RESPONSE
MTR28515T, MAIN (+5) TURN-ON INTO FULL LOAD
MTR28515T, AUX. (15)TURN-ON INTO FULL LOAD
FIGURE 27
FIGURE 28
FIGURE 29
16.0
16.0
INPUT VOLTAGE (VOLTS)
INPUT VOLTAGE (VOLTS)
5 10 15 20 25 30
15.5
15.5
15.0
15.0
14.5
14.5
14.0
14.0
13.5
13.5
OUTPUT POWER (WATTS) 1% DROP
5
10
15
20
25
30
MTR28512T LOW LINE DROPOUT VS. LOAD
OUTPUT POWER (WATTS) 1% DROP
MTR28515T LOW LINE DROPOUT VS. LOAD
FIGURE 30
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FIGURE 31
Page 11 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE F1
Platform
Seam Seal
1.350 max. (34.29) 1.170 (29.72) 0.040 dia. (1.02)
Dot on top of case indicates pin one
1
2
3
4
5
10 0.170 (4.32) 0.000 0.000 0.405 max (10.29) 0.25 (6.4) 0.000 0.170 (4.32)
9
8
7
6
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
1.770 (44.96)
Seal hole: 0.123 0.003 (3.12 0.08)
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 300C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold ceramic seal
Case F1, Rev C, 20051216 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 32: CASE F1 - TRIPLE MODELS
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Page 12 of 19 Rev G - 20060505
1.950 max. (49.53)
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE H2
Platform
Seam Seal
1.110 max. (28.19) 0.955 (24.26) 0.040 dia (1.02)
Squared corner and dot on top of case indicate pin one.
1
2
3
4
5
10 0.155 (3.94) 0.000 0.000 0.400 max. (10.16) 0.000 0.245 (6.22)
9
8
7
6
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
1.845 (46.86) 5 6 1.845 (46.86)
Seal hole: 0.120 0.002 (3.05 0.05)
Squared corner and dot on top of case indicate pin one.
1.110 max. (28.19) 0.955 (24.26) 1 2 3 4
10 0.155 (3.94) 0.000 0.000 0.245 (6.22)
9
8
7
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
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 300C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold ceramic seal
Case H2, Rev C - 20060109 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 33: CASE H2 - DUAL MODELS
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2.090 max. (53.01)
2.090 max. (53.01)
0.25 (6.4)
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE H4
Solder Seal
1.120 max. (28.45) 0.960 (24.38) 0.040 dia (1.02)
Dot on top of case indicates pin one
1
2
3
4
5
Solder Tip-off
10 0.160 (4.06) 0.000 0.000 0.255 (6.48) 2.110 max. (53.59) 0.655 (16.64) 1.055 (26.80) 1.455 (36.96) 0.417 max (10.59) 0.25 +0.05/-0.00 (6.4 +1.3/-0.0) 1.855 (47.12) 0.000 9 8 7 6
Seal hole: 0.091 0.005 (2.31 0.13)
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 300C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Tin Cover Cold Rolled Steel/Nickel/Tin Pins #52 alloy compression glass seal
Case H4, Rev C - 20060110 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 34: CASE H4 - DUAL MODELS
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Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE J1 Flanged cases: Designator "F" required in Case Option position of model number.
Platform
Seam Seal
1.350 max. (34.29) 1.170 (29.72) 0.040 dia. (1.02) 0.670 (17.02)
Squared corner and dot on top of case indicate pin one.
1
2
3
4
5 0.162 dia (4.11)
0.170 (4.32) 0.000
10
9
8
7
6
2.150 (54.61)
Flange thickness: 0.060 (1.52)
Seal hole: 0.12 0.0021
2.720 max (69.09)
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 300C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold ceramic seal
Case J1, Rev C, 20060109 MHV only. 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 35: CASE J1 - TRIPLE MODELS
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Page 15 of 19 Rev G - 20060505
2.720 max. (69.09)
0.000
0.405 max (10.29)
0.25 (6.4)
0.210 (5.33)
0.000
0.170 (4.32)
0.570 (14.48)
0.970 (24.64)
1.370 (34.80)
2.150 (54.61)
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE K3 Flanged cases: Designator "F" required in Case Option position of model number.
Platform
Seam Seal
1.110 max. (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1)
Dot on top of case indicates pin one
1
2
3
4
5
0.162 dia (4.11)
10 0.155 (3.94) 0.000 0.400 max. (10.16) 0.25 0.03 (6.4 0.8)
9
8
7
6
Platform
Seam Seal
1.110 max. (28.19) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1)
Dot on top of case indicates pin one
1
2
3
4
5
10 0.155 (3.94) 0.000 - 0.230 (5.84) 0.400 max. (10.16)
9
8
7
6
Flange thickness: 0.060 (1.52)
Seal hole: 0.120 0.002 (3.05 0.05)
2.910 max (73.91) 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 Materials Header Cold Rolled Steel/Nickel/Gold Cover Kovar/Nickel Pins #52 alloy/Gold ceramic seal CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300C for 10 seconds per pin.
Case K3, Rev C, 20060110 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 36: CASE K3 - SINGLE MODELS
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2.320 (58.93) 2.910 max. (73.91)
0.245 (6.22)
0.645 (16.38)
1.045 (26.54)
0.25 0.03 (6.4 0.8)
1.445 (36.70)
1.845 (46.86)
0.000
0.000
2.320 (58.93) 2.910 max. (73.91) 0.162 dia (4.11)
0.230 (5.84)
0.245 (6.22)
0.000
0.645 (16.38)
1.045 (26.54)
1.445 (36.70)
1.845 (46.86)
0.000
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converter Cases
28 VOLT INPUT - 30 WATT
BOTTOM VIEW CASE K5 Flanged cases: Designator "F" required in Case Option position of model number.
Solder Seal
1.115 max. (28.32) 0.955 (24.26) 0.040 dia (1.02) 0.555 (14.1) 1 2 3 MTR Series Dual (Standard and ES) 10 0.155 (3.94) 0.000 - 0.230 (5.84) 2.910 max. (73.91) 0.000 0.245 (6.22) 1.845 (46.86) 0.645 (16.38) 1.045 (26.54) 0.417 max (10.59) 1.445 (36.70) 2.320 (58.93) 0.000 0.25 0.03 (6.4 0.8) 9 8 7 6 4 5 0.162 dia (4.11)
Squared corner and dot on top of case indicate pin one.
Solder Tip-off
Flange thickness: 0.060 (1.52)
2.910 max (73.91)
Seal hole: 0.091 0.001 (2.31 0.03)
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 300C for 10 seconds per pin. Materials Header Cold Rolled Steel/Nickel/Tin Cover Cold Rolled Steel/Nickel/Tin Pins #52 alloy compression glass seal
Case K3, Rev C, 20060109 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 (c) 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 37: CASE K5 - SINGLE MODELS
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Page 17 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
883, CLASS H, QML PRODUCTS - ELEMENT EVALUATION
ELEMENT EVALUATION TEST PERFORMED (COMPONENT LEVEL) Element Electrical (probe) Element Visual Internal Visual Final Electrical Wire Bond Evaluation4 SLAMTM/C-SAM: Input Capacitors only (Add'l test, not req. by H or K) STANDARD (NON-QML)1 M/S2 P3 yes no no no no no no no no no no no CLASS H, QML 2 M/S P3 yes yes yes yes yes no yes yes no yes yes yes
Definitions: Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SLAMTM: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy Notes: 1. Non-QML products do no 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 wire bonds
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Page 18 of 19 Rev G - 20060505
Crane Aerospace & Electronics Power Solutions
MTR Single, Dual and Triple DC/DC Converters
28 VOLT INPUT - 30 WATT
883, CLASS H, QML PRODUCTS - ENVIRONMENTAL SCREENING
TEST 125C STANDARD non-QML 125C /ES non-QML Class H /883 QML
Pre-cap Inspection Method 2017, 2032 Temperature Cycle (10 times) Method 1010, Cond. C, -65C to 150C, ambient Method 1010, Cond. B, -55C to 125C, ambient Constant Acceleration Method 2001, 3000 g Method 2001, 500g Burn-In Method 1015, 160 hours at 125C case, typical 96 hours at 125C case, typical Final Electrical Test MIL-PRF-38534, Group A Subgroups 1 through 6: -55C, +25C, +125C case Subgroups 1 and 4: +25C case Hermeticity Test Fine Leak, Method 1014, Cond. A Gross Leak, Method 1014, Cond. C Gross Leak, Dip (1 x 10-3) Final Visual Inspection Method 2009
yes
yes
yes
no no
no yes
yes no
no no
no yes
yes no
no no
no yes
yes no
no yes
no yes
yes no
no no yes
yes yes no
yes yes no
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
MTR Single, Dual and Triple. Rev G - 20060505. 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. MTR Series is a trademark of Interpoint. Copyright (c) 1994 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com
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