FEATURES
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DC/DC CONVERTERS
28 VOLT INPUT
–55° to +125°C 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
MTR SERIES
30 WATT
MODELS
VDC OUTPUT
SINGLE
DUAL
TRIPLE
3.3
±5
+5 &
5
±12
±12
12
±15
+5 &
15
±15
18
Size (max): Non-flanged: Single and dual output models, case H2 (H4 for MTR Dual with standard or ES screening, ht 0.417", 10.59 mm)
2.125 x 1.125 x 0.400 inches (53.98 x 28.58 x 10.16 mm)
Triple output models, case F1, 1.950 x 1.350 x 0.405 inches (49.53 x 34.29 x 10.29 mm)
Flanged:
Single and dual output models, case K3 (or K5 for MTR Dual with standard or ES screening, ht. 0.417", 10.59 mm)
2.910 x 1.125 x 0.400 inches (73.91 x 28.58 x 10.16 mm)
Triple output models, case J1, 2.720 x 1.350 x 0.405 inches (69.09 x 34.29 x 10.29 mm)
Weight:
Single and dual non-flanged 50 grams max., flanged 52 grams max.
Triple non-flanged 58 grams max., flanged 62 grams max.
Screening: Standard, ES, or 883 (Class H).
DESCRIPTION
The MTR Series™ 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.
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.
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.
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.
WIDE VOLTAGE RANGE
MTR converters are designed to provide full power operation over a
full 16 to 40 VDC voltage range. Operation below 16 volts, including
MIL-STD-704E emergency power conditions is possible with
derated power. Refer to the low line dropout graph (Figure 22) for
details.
IMPROVED DYNAMIC RESPONSE
The MTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The minimum to maximum step line transient response
is typically less than 4%.
INHIBIT FUNCTION
MTR converters provide an inhibit terminal that can be used to
disable internal switching, resulting in no output and very low
quiescent input current. The converter is inhibited when a TTL
compatible low (≤0.8 V) is applied to the inhibit pin. The unit is
enabled when the pin, which is internally connected to a pull-up
resistor, is left unconnected or is connected to an open-collector
gate. The open circuit output voltage associated with the inhibit pin
is 9 to 11 V. In the inhibit mode, a maximum of 8 mA must be sunk
from the inhibit pin.
89
DC/DC CONVERTERS
MTR SERIES
30 WATT
SYNC AND INHIBIT
ABSOLUTE MAXIMUM RATINGS
TYPICAL CHARACTERISTICS
Sync (500 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min, 5 V max
• Referenced to input common
• If not used, connect to input common
Inhibit TTL Open Collector
• Logic low (output disabled)
Voltage ≤0.8 V
Inhibit pin current 8.0 mA max
• Referenced to input common
• Logic high (output enabled)
Open collector
Input Voltage
• 16 to 40 VDC
Output Power
• 25 to 30 watts depending on model
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• –65°C to +135°C
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C
Output Voltage Temperature Coefficient
• 100 ppm/°C typical single and dual outputs
• 200 ppm/°C main, 300 ppm/°C aux
triple output
Input to Output Capacitance
• 50 pF typ (100 pF typ triple outputs)
Current Limit
• 115% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 40 dB typ (50 dB typ triple output)l
Conversion Frequency
• Free run 550 min, 600 typ, 650 max kHz
• External sync 500 to 675 kHz
Inhibit Pin Voltage (unit enabled)
• 9 to 11 V
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
MTR283R3S
0
—
20
0
—
25
0
—
30
0
—
30
0
—
30
10 kHz – 2 MHz
Tc = –55°C TO +125°C
Vin = 16 to 40 VDC
Tc = –55°C TO +125°C
NO LOAD TO FULL
Tc = –55°C TO +125°C
CONTINUOUS
TRANSIENT 50 ms
—
—
—
—
—
—
16
—
15
—
5
—
2
—
28
—
40
50
10
10
10
10
40
50
—
—
—
—
—
—
16
—
35
50
10
15
5
15
28
—
50
90
30
50
30
50
40
50
—
—
—
—
—
—
16
—
25
40
10
15
5
15
28
—
50
90
30
50
30
50
40
50
—
—
—
—
—
—
16
—
25
40
10
15
5
15
28
—
50
90
30
50
30
50
40
50
—
—
—
—
—
—
16
—
—
—
—
—
—
—
28
—
40
90
30
50
30
50
40
50
NO LOAD
FULL LOAD
INHIBITED
10 kHz – 10 MHz
Tc = –55°C TO +125°C
—
—
—
30
0.94
7
75
—
8
—
—
—
35
1.15
3
75
—
8
—
—
—
35
1.30
3
75
—
8
—
—
—
35
1.25
3
75
—
8
—
—
—
—
1.33
—
50
—
8
mA
A
mA
—
74
25
76
50
—
—
76
20
78
50
—
—
80
20
83
50
—
—
81
20
84
50
—
—
81
—
—
50
—
mA p-p
%
—
—
—
1.4
10
6
—
—
—
1.4
10
5
—
—
—
1.4
10
5
—
—
—
1.4
10
5
—
—
—
1.4
10
—
W
ms
INPUT CURRENT1
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT3
STEP LOAD RESP.
STEP LINE RESP.
START-UP1
SHORT CIRCUIT
POWER DISSIPATION
RECOVERY1, 4
50% – 100% – 50%
TRANSIENT
RECOVERY4
16 – 40 – 16 VDC
TRANSIENT5
RECOVERY4
DELAY
OVERSHOOT
FULL LOAD
NO LOAD
—
—
MAX
3.33
6.06
±125 ±250
—
200
TYP
5.00
—
MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS
5.05 11.88 12.00 12.12 14.85 15.00 15.15 17.82 18.00 18.18 VDC
5.0
0
—
2.5
0
—
2.0
0
—
1.67
A
W
mV p-p
mV
mV
VDC
V
—
—
±200 ±300
60
200
—
—
±250 ±400
60
200
—
—
±350 ±500
60
200
—
—
—
60
±600 mV pk
—
µs
±200 ±300
—
300
—
—
±400 ±500
—
300
—
—
±500 ±600
—
300
—
—
±500
300
—
—
mV pk
µs
—
—
—
—
±300
300
—
—
—
1.4
5
—
1.4
5
—
1.4
5
—
1.4
5
—
—
5
ms
—
—
0
33
50
150
—
—
0
50
50
250
—
—
0
120
120
600
—
—
0
150
150
750
—
—
0
—
—
—
mV pk
Notes
1. Tc = –55°C to +125°C
2. Operation is limited below 16V (see Figure 22).
3. Indefinite short circuit protection not guaranteed above 125°C case.
90
MIN
4.95
0
MTR2818S
VIN = 16 to 40 VDC
INPUT VOLTAGE1
NO LOAD TO FULL
TYP
3.30
––
MTR2815S
VIN = 16 to 40 VDC
LOAD REGULATION
MIN
3.27
0
MTR2812S
OUTPUT POWER1
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION2
CONDITION
MTR2805S
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT1
4. Recovery time is measured from application of the transient to point at which
Vout is within 1% of final value.
5. Transition time ≥10 µs.
MTR SERIES
30 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
+VOUT
MTR2805D
MIN
TYP
MAX
4.95
5.00
5.05
MTR2812D
MIN
TYP
MAX
11.88 12.00 12.12
MTR2815D
MIN
TYP
MAX
14.85 15.00 15.15
–VOUT
4.92
5.00
5.07
11.82
12.00
12.18
14.77 15.00
CONDITIONS
UNITS
VDC
15.23
OUTPUT CURRENT1, 2
VIN = 16 TO 40 VDC
0
2.5
4.5
0
1.25
2.25
0
1.0
1.8
A
OUTPUT POWER1, 2
VIN = 16 TO 40 VDC
0
—
25
0
—
30
0
—
30
W
10 kHz - 2 MHz
—
20
50
—
30
80
—
25
80
Tc = –55°C TO +125°C
—
40
80
—
40
120
—
40
120
+VOUT
—
10
50
—
10
30
—
10
30
–VOUT
—
50
100
—
50
120
—
50
150
+VOUT
—
10
50
—
10
50
—
10
50
180
OUTPUT RIPPLE
VOLTAGE +/– VOUT
LINE REGULATION3
VIN = 16 TO 40 VDC
Tc = –55°C
–VOUT
—
50
100
—
50
150
—
50
LOAD REGULATION
TO +125°C
+VOUT
—
5
30
—
15
30
—
15
30
NO LOAD TO FULL
–VOUT
—
25
50
—
30
120
—
30
150
Tc = –55°C
+VOUT
—
5
50
—
15
50
—
15
50
TO +125°C
–VOUT
180
mV p-p
mV
mV
—
25
100
—
30
180
—
30
CROSS REGULATION
SEE NOTE 4
—
7
12
—
4
8.3
—
3
8
EFFECT ON –VOUT
SEE NOTE 5
—
4
6
—
4
6
—
4
6
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
16
0
—
—
—
28
—
35
1.10
3
40
50
75
—
8
16
0
—
—
—
28
—
50
1.34
3
40
50
75
—
8
16
0
—
—
—
28
—
50
1.29
3
40
50
75
—
8
VDC
V
mA
A
mA
10 kHz - 10 MHz
—
76
15
78
50
—
—
78
20
81
50
—
—
80
20
83
50
—
mA p-p
%
—
—
—
1.4
10
5.0
—
—
—
1.4
10
5.0
—
—
—
1.4
10
5.0
W
ms
INPUT VOLTAGE1
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE
CURRENT1
EFFICIENCY
LOAD FAULT6
STEP LOAD
RESPONSE ± VOUT
STEP LINE
RESPONSE ± VOUT
START–UP1
POWER DISSIPATION
SHORT CIRCUIT1
RECOVERY
50 – 100 – 50% BALANCED
TRANSIENT
%
—
±200
±300
—
±150
±300
—
±200
±400
mV pk
RECOVERY7
16 – 40 – 16 VIN
TRANSIENT8
—
100
200
—
100
200
—
100
200
µs
—
±200
±400
—
±200
±400
—
±400
±500
mV pk
RECOVERY7
DELAY
—
—
—
1.4
300
5
—
—
—
1.4
300
5
—
—
—
1.4
300
5
µs
ms
OVERSHOOT
FULL LOAD
—
0
50
—
0
120
—
0
150
NO LOAD
—
50
250
—
120
600
—
150
750
Notes
1. Tc = –55°C to +125°C.
2. Up to 90% of the total output current/power is available from either output
providing the positive output is carrying at least 10% of the total output
power.
3. Operation is limited below 16 V (see Figure 22).
4. Effect on the negative output under the following conditions:
+Pout 20% to 80%; –Pout 80% to 20%
mV pk
5. Effect on the negative output under the following conditions:
+Pout 50%; –Pout 10% to 50%
6. 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. Transition time ≥ 10 µs.
91
MTR SERIES
30 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
TRIPLE OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT1
VIN = 16 TO 40
OUTPUT POWER1
VIN = 16 TO 40
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
VIN = 16 TO 40
LOAD REGULATION2, 3
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT
MTR28512T
MIN
TYP
MAX
MIN
TYP
MAX
MAIN
4.95
5.0
5.05
4.95
5.0
5.05
+ AUXILIARY
11.82
12.0
12.18
14.77
15.0
15.23
– AUXILIARY
11.82
12.0
12.18
14.77
15.0
15.23
MAIN
0.5
—
4.0
0.5
—
4.0
+ AUXILIARY
—
0.416
0.750
—
0.333
0.600
– AUXILIARY
—
0.416
0.750
—
0.333
0.600
MAIN
—
20
20
—
20
20
+ AUXILIARY
—
5
9
—
5
9
– AUXILIARY
—
5
9
—
5
9
TOTAL
—
—
30
—
—
30
MAIN
—
50
115
—
50
115
± AUXILIARY
—
20
80
—
20
80
10 kHz to 2 MHz
MAIN
—
10
20
—
10
20
±AUXILIARY
—
25
60
—
30
75
MAIN
—
10
20
—
10
50
± AUXILIARY
—
30
75
—
30
75
CONTINUOUS
16
28
40
16
28
40
TRANSIENT 50 ms
—
—
50
—
—
50
UNITS
VDC
A
W
mV p-p
mV
mV
VDC
NO LOAD
—
70
100
—
70
100
FULL LOAD
—
1.37
1.45
—
1.37
1.45
A
INHIBITED
—
3.0
8
—
3.0
8
mA
—
20
40
—
20
40
mA p-p
72
75
—
73
75
—
%
10 kHz TO 10 MHz
EFFICIENCY
LOAD FAULT4
MTR28515T
CONDITION
mA
POWER DISSIPATION
SHORT CIRCUIT
STEP LOAD RESPONSE
ALL OUTPUTS SHORTED TOTAL
—
—
14
—
—
14
W
RECOVERY EACH OUTPUT
—
1.4
2.0
—
1.4
2.0
ms
TRANSIENT5
RECOVERY6
STEP LINE RESPONSE
VIN = 16 TO 40
START-UP
TRANSIENT
MAIN
—
150
250
—
150
250
± AUXILIARY
MAIN
± AUXILIARY
MAIN
—
—
—
—
500
0.05
3
150
750
0.10
5
250
—
—
—
—
500
0.05
2
150
750
0.10
5
250
± AUXILIARY
—
100
250
—
100
250
MAIN
—
—
1.4
0
2.0
500
—
—
1.4
0
2.0
500
± AUXILIARY
—
0
1500
—
0
1500
DELAY
OVERSHOOT
Notes
1. The sum of the two aux outputs is not to exceed 10 watts. The maximum
load per aux output is 9 watts.
2. To maintain regulation when operating the ±Aux at full load, a minimum load
of 500 mA is required on the main.
3. Measured on each output one at a time with the other outputs at full load.
92
mV
ms
mV
ms
mV
4. Indefinite short circuit protection not guaranteed above 125°C (case).
5. 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
6. Recovery time is measured from application of the transient to point at
which Vout is within 1% of regulation.
MTR SERIES
30 WATT
DC/DC CONVERTERS
TRIM AND REMOTE SENSE (AVAILABLE ON SINGLE OUTPUT MODELS ONLY)
MTR SINGLE OUTPUT CONVERTER
1
+VIN
MTR SINGLE OUTPUT CONVERTER
4
OUTPUT
COMMON
SENSE
RETURN
1
3
INPUT
COMMON
10
RL
6
2
SENSE
1
RT
POSITIVE
OUTPUT
2
3
RL
6
SENSE
4
OUTPUT
COMMON
SENSE
RETURN
+VIN
1
5
10
EXTERNAL TRIM CONNECTION
POSITIVE
OUTPUT
INPUT
COMMON
5
REMOTE SENSE CONNECTION
1 Make connections at converter.
2 Make connections at load.
FIGURE 2: REMOTE SENSE2, 3
FIGURE 1: TRIM CONNECTION1, 2, 3
Trim Formulas
Vout = desired output voltage; Rt = trim resistor
3.3V: Rt = 1300 * Vout – 4304
1.2475
5V: Rt = 1300 * Vout – 6512
1.2475
12V: Rt = 1300 * Vout – 15631
1.2475
15V: Rt = 1300 * Vout – 19498
1.2475
Notes for Remote Sense and Trim
1. When trimming output voltage and/or remote sensing, the total output
voltage increase must be less than 0.6 volts at the converters pins to
maintain specified performance.
2. If neither voltage trim nor remote sense will be used, connect pin 3 to
pin 4 and pin 5 to pin 6 or the output voltage will increase by 1.2 volts.
3. CAUTION: The converter will be permanently damaged if the positive
remote sense (pin 6) is shorted to ground. Damage may also result if
the output common or positive output is disconnected from the load with
the remote sense leads connected to the load.
PIN OUT
Dot on top of cover indicates pin one.
1
2
3
4
5
BOTTOM VIEW
MTR SINGLE
FLANGED AND NON-FLANGED
10
9
8
7
6
Dotted line outlines flanged package option.
See pages 10, 13, and for dimensions.
FIGURE 3: PIN OUT SINGLE OUTPUT MODELS
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
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
BOTTOM VIEW
MTR DUAL
FLANGED AND NON-FLANGED
10
9
8
7
6
Dotted line outlines flanged package option.
2
3
4
5
BOTTOM VIEW
MTR TRIPLE
FLANGED AND NON-FLANGED
10
9
8
7
6
Dotted line outlines flanged package option.
See pages 10, 11, 13, 14, and 15 for dimensions.
See pages 9 and 12 for dimensions.
FIGURE 4: PIN OUT DUAL OUTPUT MODELS
FIGURE 5: PIN OUT TRIPLE OUTPUT MODELS
1
DC/DC CONVERTERS
MTR SERIES
30 WATT
SMD NUMBERS
STANDARD MICROCIRCUIT
DRAWING (SMD)
MTR SERIES
SIMILAR PART
5962-0150101HXC
5962-9306801HXC
5962-9306901HXC
5962-9307001HXC
5962-9320201HXC
5962-9320501HXC
5962-9307101HXC
5962-9307201HXC
5962-9307301HXC
5962-9307401HXC
MTR283R3S/883
MTR2805S/883
MTR2812S/883
MTR2815S/883
MTR2818S/883
MTR2805D/883
MTR2812D/883
MTR2815D/883
MTR28512T/883
MTR28515T/883
MODEL NUMBERING KEY
MTR
28 512 T
F / 883
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)
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
Screening
(Standard screening has no designator
in this position.)
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
85
87
85
16V
16V
16V
75
70
40V
65
60
28V
EFFICIENCY (%)
28V
75
40V
70
10
15
20
60
25
40V
72
62
10
5
15
20
5
10
15
20
25
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
OUTPUT POWER (Watts)
MTR2805S EFFICIENCY
MTR2812S EFFICIENCY
MTR2815S EFFICIENCY
FIGURE 6
FIGURE 8
FIGURE 7
85
90
16V
0
EFFICIENCY (%)
75
70
40V
65
10
16V
85
20
28V
ATTENUATION (dB)
28V
80
EFFICIENCY (%)
77
67
65
5
28V
82
80
EFFICIENCY (%)
EFFICIENCY (%)
80
80
40V
75
70
30
40
50
60
70
80
90
60
5
10
15
20
OUTPUT POWER (Watts)
MTR2812D EFFICIENCY
FIGURE 9
2
65
5
10
15
20
100
0.1
1
10
OUTPUT POWER (Watts)
FREQUENCY (kHz)
MTR2815D EFFICIENCY
AUDIO REJECTION, MTR SERIES
FIGURE 10
FIGURE 11
100
MTR SERIES
30 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
25W to 2.5W
200mV/div
100mV/div
20mV/div
20V/div
25W to 12.5W
VIN
2.5W to 25W
VOUT
12.5W to 25W
50µs/div
16 TO 40V
50µs/div
50% 100%
50µs/div
10% 100%
MTR2805S STEP LINE RESPONSE
MTR2805S STEP LOAD RESPONSE
MTR2805S STEP LOAD RESPONSE
FIGURE 14
FIGURE 13
20V/div
–POUT =15W
VIN
VIN
15W to 7.5W
100mV/div
20V/div
FIGURE 12
20mV/div
7.5W to 15W
VOUT
–VOUT
500 µs / div
50µs/div
16 TO 40
50µs/div
25%
50%
MTR2815D STEP LINE RESPONSE
MTR2815D +VOUT STEP LOAD RESPONSE
MTR2805S TURN-ON INTO NO LOAD
FIGURE 15
FIGURE 17
FIGURE 16
20V/div
–VOUT VOLTAGE CHANGE (%)
10
9
8
7
2812D
6
5
4
2805D
3
2
1 2815D
0
-1
2815D
-2
-3
-4
2812D
-5
-6
2805D
-7
-8
-9
-10
+POUT 0 3 6 9 12 15 18 21 24 27 30
–POUT 30 27 24 21 18 15 12 9 6 3 0
VIN
100mV/div
15W to 3W
5V/div
+VOUT
–VOUT
3W to 15W
50µs/div
10%
100%
200µs/div
OUTPUT LOAD (Watts)
10% to 90% LOAD +V
90% to 10% LOAD –V
MTR2815D TURN-ON INTO NO LOAD
MTR2815D +VOUT STEP LOAD RESPONSE
CROSS REGULATION
FIGURE 18
16.0
80
16V
15.5
2812D
2805D
COND A
2815D
COND B
2805D
2812D
75
15.0
EFFICIENCY (%)
8
7
6
5
4
3
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
FIGURE 20
FIGURE 19
INPUT VOLTAGE (Volts)
–VOUT VOLTAGE CHANGE (%)
1V/div
+VOUT
14.5
14.0
13.5
40V
70
28V
65
60
13.0
10
20
30
40
50
OUTPUT LOAD (%)
COND. B: 50% LOAD +V, 50% to 10% –V
COND. A: 50% LOAD –V, 50% to 10% +V
CROSS REGULATION
FIGURE 21
9
12
15
18
21
24
27
30
OUTPUT POWER (Watts)
1% DROP
MTR SINGLES AND DUALS
LOW LINE DROPOUT
FIGURE 22
55
5
10
15
20
25
30
OUTPUT POWER (WATTS)
MTR28512T EFFICIENCY
FIGURE 23
3
DC/DC CONVERTERS
MTR SERIES
30 WATT
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
80
16V
20V/div
0
10
75
40V
70
28V
65
60
30
40
50
60
70
80
90
55
5
10
15
20
25
30
1
100
OUTPUT POWER (WATTS)
FREQUENCY (kHz)
50µs/div
16V TO 40V
MTR28515T EFFICIENCY
MTR SERIES AUDIO REJECTION
MTR28515T STEP LINE RESPONSE
FIGURE 26
+5 V
50% to 100%
50 µs/div
20V/div
FIGURE 25
20V/div
100mV/div
10
VIN
VIN
±15 VOUT
1ms/div
50% to 100%
5V/div
2V/div
+AUX
200mV/div
+AUX
–AUX
100
0.1
FIGURE 24
+5 VOUT
–AUX
50%
MTR28515T, MAIN (+5) TURN-ON INTO FULL LOAD
16.0
INPUT VOLTAGE (VOLTS)
INPUT VOLTAGE (VOLTS)
16.0
15.5
15.0
14.5
14.0
15.5
15.0
14.5
14.0
13.5
5
10
15
20
25
30
5
10
15
20
25
30
OUTPUT POWER (WATTS)
1% DROP
OUTPUT POWER (WATTS)
1% DROP
MTR28512T LOW LINE DROPOUT VS. LOAD
MTR28515T LOW LINE DROPOUT VS. LOAD
FIGURE 30
FIGURE 31
MTR28515T, AUX. (±15)TURN-ON INTO FULL LOAD
FIGURE 29
FIGURE 28
FIGURE 27
13.5
500µs/div
500 µs/div
100%
MTR28515T STEP LOAD RESPONSE
4
VIN
+5 VOUT
100mV/div
ATTENUATION (dB)
EFFICIENCY (%)
20
MTR SERIES
30 WATT
DC/DC CONVERTERS
Dot on top of case indicates pin one
CASE F
BOTTOM VIEW
See Figure 33 for pin configuration
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins
#52 alloy (all cases)
ceramic seal
1.350 max
(34.29)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
1.950 max
(49.53)
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
FIGURE 32: CASE F MAXIMUM DIMENSIONS
BOTTOM VIEW CASE F1
MTR Series Triple: Screening – Standard, ES, or 883
Seam Seal
Platform
Header
Dot on top of case indicates pin one
1.170
(29.72)
0.040 dia.
(1.02)
1
2
3
4
5
10
9
8
7
6
0.170
(4.32)
1.770
(44.96)
1.370
(34.80)
0.970
(24.64)
0.570
(14.48)
0.170
(4.32)
0.000
0.25 (6.4)
0.000
0.405 max
(10.29)
0.000
Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer
to the numerical dimensions for accuracy.
5
DC/DC CONVERTERS
MTR SERIES
30 WATT
Dot on top of case indicates pin one
CASE H
BOTTOM VIEW
See Figures 35 and 36
for pin configurations.
1.125 max
(28.58)
2.125 max
(53.98)
Materials
Header Cold Rolled Steel/Nickel/Gold
case H2
Cold Rolled Steel/Nickel/Tin
case H4
Cover Kovar/Nickel
case H2
Cold Rolled Steel/Nickel/Tin
case H4
Pins
#52 alloy
ceramic seal
case H1
compression glass seal
case H4
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
FIGURE 34: CASE H MAXIMUM DIMENSIONS
BOTTOM VIEW CASE H2
MTR Series Single, – Standard, ES, or 883
MTR Series Dual: Screening – 883
Seam Seal
Squared corner and dot on top
of case indicate pin one.
Platform
1.110 (28.19)
0.955 (24.26)
1
0.040 dia
(1.02)
2
3
4
5
10
9
8
7
0.245
(6.22)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
MTR Series Dual (883)
6
0.155 (3.94)
2.090
(53.01)
1.845
(46.86)
0.000
0.25 (6.4)
0.000
0.400 max.
(10.16)
0.000
Squared corner and dot on top
of case indicate pin one.
1.110 (28.19)
0.955 (24.26)
1
2
3
4
5
10
9
8
7
0.245
(6.22)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
MTR Series Single
6
0.155 (3.94)
6
2.090
(53.01)
1.845
(46.86)
FIGURE 35: CASE H2
0.000
0.000
MTR SERIES
30 WATT
DC/DC CONVERTERS
BOTTOM VIEW CASE H4
MTR Series Dual: Screening – Standard or ES
Dot on top of case indicates pin one
Solder Seal
1.120 (28.45)
1
2
3
4
5
10
9
8
7
6
0.655
(16.64)
1.055
(26.80)
0.040 dia
(1.02)
0.255
(6.48)
0.960 (24.38)
Solder Tip-off
0.160 (4.06)
2.110
(53.59)
1.855
(47.12)
1.455
(36.96)
0.000
0.25 +0.05/-0.00
(6.4 +1.3/-0.0)
0.000
0.417 max (10.59)
0.000
FIGURE 36: CASE H4
7
DC/DC CONVERTERS
MTR SERIES
30 WATT
Dot on top of case indicates pin one
CASE J
BOTTOM VIEW
See Figure 38
for pin configuration
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
Pins
#52 alloy (all cases)
ceramic seal
1.350 max
(34.29)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
2.720 max
(69.09)
Flange Thickness: 0.060 (1.52)
FIGURE 37: CASE J MAXIMUM DIMENSIONS
BOTTOM VIEW CASE J1
Flanged cases: Designator "F" required in Case Option position of model number.
MTR Series Triple: Screening – Standard, ES, or 883
Platform Header
Squared corner and dot on top
of case indicate pin one.
Seam Seal
1.170
(29.72)
1
0.040 dia.
(1.02)
2
3
4
5
0.162 dia
(4.11)
0.670
(17.02)
10
0.170
(4.32)
9
8
7
6
FIGURE 38: CASE J1
8
2.150
(54.61)
1.770
(44.96)
1.370
(34.80)
0.970
(24.64)
0.570
(14.48)
0.170
(4.32)
0.000
0.210
(5.33)
0.25 (6.4)
0.000
0.405 max
(10.29)
0.000
MTR SERIES
30 WATT
DC/DC CONVERTERS
Dot on top of case indicates pin one
CASE K
BOTTOM VIEW
See Figures 40 and 41
for pin configuration
1.125 max
(28.58)
2.910 max
(73.91)
Flange Thickness:
Case K3 0.060 (1.52)
Case K5 0.067 +0.005/-0.007 (1.70 +0.13/-0.8)
Materials
Header Case K3
Cold Rolled Steel/Nickel/Gold
Case K8
Cold Rolled Steel/Nickel/Tin
Cover Case K3
Kovar/Nickel
Case K8
Cold Rolled Steel/Nickel/Tin
Pins
#52 alloy (all cases)
Case K3
ceramic seal
Case K8
compression glass seal
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.2) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300°C for 10 seconds
per pin.
FIGURE 39: CASE K MAXIMUM DIMENSIONS
9
DC/DC CONVERTERS
MTR SERIES
30 WATT
BOTTOM VIEW CASE K3
Flanged cases: Designator (F) required in Case Option position of model number.
MTR Series Single and Dual: Screening – Standard, ES, or 883
Note: Do ensure timely delivery of product the MTR Series will be built using the most
readily available of the cases illustrated below. Also, the MTR Dual, with standard or ES
screening, may also be built in case K5.
Platform
Seam Seal
Dot on top of case indicates pin one
1.110 (28.19)
0.955 (24.26)
1
0.040 dia
(1.02)
2
3
4
5
0.162 dia
(4.11)
MTR Series Single
10
9
8
7
0.245
(6.22)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
0.555 (14.1)
6
0.155 (3.94)
Bathtub
2.320
(58.93)
1.845
(46.86)
0.000
0.230
(5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.400 max.
(10.16)
0.000
Dot on top of case indicates pin one
Seam Seal
1.110 (28.19)
1.035 (26.30)
0.955 (24.26)
1
0.040 dia
(1.02)
2
3
4
5
0.162 dia
(4.11)
9
8
7
6
1.045 (26.54)
1.445 (36.70)
1.845 (46.86)
10
0.645 (16.38)
MTR Series Single Alternate Case
0.555 (14.1)
FIGURE 40: CASE K3
(CONTINUED ON NEXT PAGE)
10
2.320 (58.93)
2.090 (53.09)
2.150 (54.60)
0.245 (6.22)
0.060 (5.84)
0.000
0.230 (5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.20 (0.5)
0.400 max.
(10.16)
0.155 (3.94)
0.075 (1.90)
0.000
MTR SERIES
30 WATT
DC/DC CONVERTERS
Figure 40 continued: BOTTOM VIEW CASE K3
Platform
Dot on top of case indicates pin one
Seam Seal
1.110 (28.19)
0.955 (24.26)
1
0.040 dia
(1.02)
2
3
4
5
6
0.162 dia
(4.11)
MTR Series Dual
10
9
8
7
0.245
(6.22)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
0.555 (14.1)
0.155 (3.94)
Bathtub
2.320
(58.93)
1.845
(46.86)
0.000
– 0.230
(5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.400 max.
(10.16)
0.000
Dot on top of case indicates pin one
Seam Seal
1.110 (28.19)
1.035 (26.30)
0.955 (24.26)
1
0.040 dia
(1.02)
2
3
4
5
0.162 dia
(4.11)
9
8
7
6
1.045 (26.54)
1.445 (36.70)
1.845 (46.86)
10
0.645 (16.38)
MTR Series Dual Alternate Case
0.555 (14.1)
2.320 (58.93)
2.090 (53.09)
2.150 (54.60)
0.245 (6.22)
0.060 (5.84)
0.000
0.230 (5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.20 (0.5)
0.400 max.
(10.16)
0.155 (3.94)
0.075 (1.90)
0.000
FIGURE 40: CASE K3 CONTINUED
BOTTOM VIEW CASE K5
Flanged cases: Designator "F" required in Case Option position of model number.
MTR Series Dual: Screening – Standard or ES
Squared corner and dot on top
of case indicate pin one.
Solder Seal
1.115 (28.32)
1
2
3
4
5
10
9
8
7
6
0.245
(6.22)
0.645
(16.38)
1.045
(26.54)
1.445
(36.70)
0.955 (24.26)
0.040 dia
(1.02)
0.162 dia
(4.11)
0.555 (14.1)
Solder Tip-off
0.155 (3.94)
2.320
(58.93)
1.845
(46.86)
0.000
– 0.230
(5.84)
0.25 ±0.03
(6.4 ±0.8)
0.000
0.417 max
(10.59)
0.000
FIGURE 41: CASE K5
11
DC/DC CONVERTERS
MTR SERIES
30 WATT
ENVIRONMENTAL SCREENING
TEST
STANDARD
/ES
/883 (Class H)*
PRE-CAP INSPECTION
Method 2017, 2032
yes
yes
yes
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. C, -65°C to 150°C
Method 1010, Cond. B, -55°C to 125°C
no
no
no
yes
yes
no
CONSTANT ACCELERATION
Method 2001, 3000 g
Method 2001, 500 g
no
no
no
yes
yes
no
BURN-IN
Method 1015, 160 hours at 125°C
96 hours at 125°C case (typical)
no
no
no
yes
yes
no
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 through 6: -55°C, +25°C, +125°C
Subgroups 1 and 4: +25°C case
no
yes
no
yes
yes
no
HERMETICITY TESTING
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
Gross Leak, Dip (1 x 10-3)
no
no
yes
yes
yes
no
yes
yes
no
FINAL VISUAL INSPECTION
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
*883 products are built with element evaluated components and are 100% tested and guaranteed over
the full military temperature range of –55°C to +125°C.
Contact Information:
www.interpoint.com
Interpoint Headquarters USA
Phone: 1-800-822-8782
+425-882-3100
Email:
[email protected]
Interpoint UK
Phone: +44-1252-815511
Email:
[email protected]
12
20821-001-DTS Rev F. 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 © 1994 - 2003 Interpoint Corporation. All rights reserved.
Interpoint France
Phone: +33-134285455
Email:
[email protected]