MTC1528S12 [XPPOWER]
COTS Component for Defense & Avionics Applications;
| 型号： | MTC1528S12 |
| 厂家： | 
XP POWER LIMITED |
| 描述： | COTS Component for Defense & Avionics Applications |
| 文件： | 总36页 (文件大小：9271K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LF MTC05,15 & 30
• Page 2 - MTC05
• Page 13 - MTC15
• Page 24 - MTC30
MTC05
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•
•
•
•
•
•
•
•
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COTS Component for Defense & Avionics Applications
Environmental Performance to MIL-STD 810
10 to 50 VDC Transient Input Range
15 to 40 VDC Steady State Input Range
5W Max Output Power
-55ºC to 100ºC Operation
Cooling Plates and Optional Mounting Flange for Easy Integration
Synchronous Rectification on Low Voltage Outputs
MIL-STD 461E/F EMI Performance
Frequency Synchronization
Introduction
The MTC05 is a COTS DC-DC converter developed specifically for the defense and avionics market. This product has a
full military specification while offering the short lead-times and cost benefits of a COTS component.
The MTC05 uses a forward converter design switching at 450 kHz giving excellent size, efficiency and EMC
performance. The input range is designed to provide short term operation over 10 – 50 VDC to enable the converter to
work at full power through the dips and surges commonly seen in vehicle and aircraft applications. A soft start circuit
provides well-controlled outputs with no overshoot.
Comprehensive control functions such as voltage trim, remote sense, inhibit and frequency synchronization to an
external source are standard features.
When used in conjunction with the MTF input filter module the MTC05 complies to MIL-STD 461E/F CE/CS MIL-STD
1275A-D and MIL-STD 704A.
xppower.com
Input Characteristics
Characteristic
Minimum
15.5
10
12.8
8.5
Typical
Maximum
40
Units
VDC
VDC
VDC
VDC
A
Notes & Conditions
Input Voltage
Transient Input Voltage Range
UVLO Turn On
28
Continuous
10V for 10 s, 50V for 1 s at full load
50
14.8
9.8
UVLO Turn Off
Maximum Input Current
Inhibited Input Current
Inrush Current
See models and ratings table for details
Verified by measurement
Peak value
1.2
40
mA
A
Input Reverse Voltage Protection
External components required
Output Characteristics
Characteristic
Minimum
Typical
Maximum
Units
Notes & Conditions
Output Voltage
VDC
A
mV
A
See models and ratings table for details
See models and ratings table for details
Output Current
Output Set Tolerance
Minimum Load
±100
0
No minimum load required
Ripple & Noise
Vout ≤5V
Vout >5V
(1)
60
1
mV
%
%
%
ºC
V
%
%
µs
%
%
pk-pk at 100% load and 20 MHz BW
100% load and 20 MHz BW
See Overvoltage Protection application note.
At Vin nominal,r estart time 700ms ±-300ms
Baseplate temp. with 2ºC to 5ºC hysteresis
Total voltage compensation
Vout nominal
Vout nominal 75-25% or 25-75% load changes
Within 1% of Vout nom
24
Overvoltage Protection
Overcurrent Protection
Overtemperature Protection
Remote Sense
None
105
102
150
107
0.5
±1
±3
500
±1
(2)
Load Regulation
Load Step Output Transient
Load Step Recovery
Line Regulation
Vout nominal at 15.5-40 Vin
Vout nominal at 15.5-40 Vin
Line Step Output Transient
±3
Time for Vout to recover to 1% of Vout nom,
with line step 15.5-40 Vin
Line Step Recovery
500
µs
Maximum Output Capacitance
Start Up Time
300 x Iout max
µF
ms
70
See fig. 17 to 20
1. Overvoltage protection can be removed by factory, add suffix “-NV” to the part number, e.g. MTC0528S05-NV.
2: For the option without overtemperature protection add suffix “-NT” to the part number, e.g. MTC0528S05-NT.
Models & Ratings
Output Voltage
Min(1)
Input Current(3)
Output
Current
Model
Number
Power
Efficiency
Nominal
3.3 VDC
5 VDC
12 VDC
15 VDC
28 VDC
Max(1)
4.0 VDC
6.0 VDC
13.8 VDC
17.0 VDC
30.0 VDC
No Load
0.03 A
0.02 A
0.02 A
0.01 A
0.02 A
Full Load
0.18 A
0.19 A
0.23 A
0.23 A
0.22 A
4 W
4 W
5 W
5 W
5 W
3.3 VDC
4.0 VDC
9.0 VDC
11.0 VDC
20.0 VDC
1.21 A
0.80 A
0.42 A
0.33 A
0.18 A
80%
77%
78%
77%
78%
MTC0528S3V3
MTC0528S05
MTC0528S12
MTC0528S15
MTC0528S28
(2)
1. Indicates maximum and minimum voltage adjustment (Maximum includes Remote Sense adjustment).
2. The full trim range is not available when the input is <15.5V.
3. Vin = 28 VDC.
2
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General Specifications
Characteristic
Minimum
Typical
Maximum
Units
%
Notes & Conditions
Efficiency
See models table and performance graphs
Input to output
Input to case
1500
1000
500
VDC
VDC
VDC
kHz
kHz
Isolation Voltage
Output to case
Switching Frequency
Frequency Synch.
MTBF
450
450
500
See note.
See MTBF Calculations
Inhibit
On = TTL High or open circuit; Off = TTL Low or short circuit
Output Voltage
Rth Case - Ambient
3.3 V
5 V
12 V
15 V
28 V
26.4 ºC/W
24.3 ºC/W
22.0 ºC/W
21.1 ºC/W
22.0 ºC/W
Rth Case - Ambient
Note. Control signal needs to be TTL 0-5 VDC square wave. The trigger is the falling edge.
Environmental
Characteristic
Minimum
-40
Typical
Maximum
+100
+100
+125
95
Units
ºC
Notes & Conditions
Operating Case Temperature
Extended Temperature Range
Storage Temperature
Humidity
Baseplate temperature
-55
ºC
Baseplate temperature. See note.
-55
ºC
%
Relative humidity
Salt Atmosphere
Altitude
48
Hrs
Ft
MIL-STD 810E Method 509.3
MIL-STD 810D Method 500.2
70000
MIL-STD 810D Method 516.3 crash hazard
for ground equipment
MIL-STD 810D Method 514.3 basic
transportation
2000 bumps in each axes
MIL-STD 810D Method 516.3 crash hazard
Shock
100
500
40
g
Hz
g
Vibration
Bump
5
Note. For -55 ºC extended operating range, add suffix ‘-LT’ to the part number. e.g. MTC1528S05-LT.
Electromagnetic Compatibility
EMC (see note 2)
Standard
Test Level
Criteria
Notes & Conditions
Conducted Emissions
MIL-STD-461E/F
CE101/CE102
MTF50 module is required
Spikes
Surges
Ripple
±250 V for 100 µs
100 V for 50 ms (see note 1) MTF50 module is required
14 VAC pk-pk
MIL-STD-1275A-D
Immunity
MIL-STD-704A
600 V input transient 10µs 50Ω source impedance MTF50 module is required
MIL-STD-704B-F
50 V for 10 ms
CS101, CS114,
Conducted Susceptibility
MIL-STD-461E/F
MTF50 module is required
CS115, CS116
Note.
1. 0.5 Ω source impedance
2. For compliance to D0160D, DEF-STAN-59-41 and GAM-EG13B please contact sales
Safety Approvals
Standard
Category
CE
LVD
3
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MTBF Calculations
Temperature / Environment
Ground Mobile - GM
Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF
20 ºC
40 ºC
60 ºC
80 ºC
100 ºC
1450849 Hrs
1000720 Hrs
671113 Hrs
423968 Hrs
246343 Hrs
1312752 Hrs
900223 Hrs
606117 Hrs
388474 Hrs
230675 Hrs
671079 Hrs
457913 Hrs
315096 Hrs
214125 Hrs
140070 Hrs
Synchronization
The recommended level for the synchronization is a TTL signal but slightly higher levels may be used without a problem. However the maximum
positive level should not exceed 5V. The ideal synchronization signal is a pulse of minimum of 200ns and low and high levels of <0.8V and 4V to 5V
respectively within a frequency range of 450kHz to 500kHz. The trigger is the falling edge of the signal and the impedance of the sync pin is
>10kohm. If the synchronization feature is not required the sync pin is recommended to be connected to ground to prevent any abnormal
interference.
4
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Overcurrent Protection
Vout
MTC0528SXX has a trip and restart (hiccup mode)
protection which will turn off the converter after reaching
the limit between 105% to 150% of full load. The converter
will attempt to restart after approximately 700ms.
105-150%
of nominal Iout
Iout
Figure 1. Overcurrent Protection
Remote Sensing
+Vout
Rlead
+Sense
Load
Power Supply
Rlead
-Vout
Figure 2. MTC05 - Remote Sense Connection Diagram
Notes.
1. To use the remote sense connect +Sense pin to +Vout.
2. When remote sense is not in use leave not connected or connect locally to +Vout.
5
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Voltage Trim
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
3.1
-Vout
+Sense
11
9
8
Max
Vnom
Limit
Rx
Rx
8
Adj.
Adj.
1.0
10.0
100.0
1000.0
TRIM UP
TRIM DOWN
Rx (kΩ)
Figure 3. MTC05 - Trim Connections
Figure 4. MTC0528S3V3 - Max and Min Adjustment
14.0
13.0
12.0
11.0
10.0
9.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
Max
Max
Min
Min
Vnom
Vnom
Limit Max
Limit Min
Limit Max
Limit Min
8.0
1.0
10.0
100.0
1000.0
1.0
10.0
100.0
1000.0
Rx (kΩ)
Rx (kΩ)
Figure 5. MTC0528S05 - Max and Min Adjustment
Figure 6. MTC0528S12 - Max and Min Adjustment
31.0
30.0
29.0
28.0
27.0
26.0
25.0
24.0
23.0
22.0
21.0
20.0
19.0
18.0
17.0
16.0
15.0
14.0
13.0
12.0
Max
Min
Max
Vnom
Min
Limit Max
Limit Min
Vnom
Limit Max
Limit Min
11.0
10.0
1.0
10.0
100.0
1000.0
10000.0
1.0
10.0
100.0
1000.0
Rx (kΩ)
Rx (kΩ)
Figure 8. MTC0528S28 - Max and Min Adjustment
Figure 7. MTC0528S15 - Max and Min Adjustment
Notes.
1. When adjusting the output voltage do not go above the specified output voltage range (refer to tables) as the Over Voltage Protection
may be triggered when fitted.
2. When adjusting the output voltage do not go below the specified voltage range (refer to tables) as input and output characteristics can not be guaranteed.
3. When not in use leave Adj. pin not-connected.
6
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EMC Performance Curves
Figure 9. MTC0528S05 without a filter
Figure 10. MTC0528S05 with MTF50 filter
EMC Filter Connection Diagram
+Vin (6)
+Vout (9)
+Vin (4)
+Vout
(10)
RL
MTC0528Sxx
MTF50
-Vin (4)
Y Cap (3)
Case (2)
-Vin (3)
-Vout (11)
-Vout
(11)
Case (1)
Figure 11. MTC05 - EMC Filter connection diagram
7
xppower.com
Parallel Configuration
R
+
+
+Sense
Converter
1
Supply
Converter
1
Supply
Adj
-
-
Load
Load
R
+
+
+Sense
Converter
2
Converter
2
Adj
-
-
Figure 12. Parallel configuration suitable for redundant operation
Figure 13. Parallel configuration for current sharing
Notes.
1. Up to 3 converters to share within 80% max power;
2. To calculate the resistor (R) for the current sharing use the formula: R=(Vout nom (V) x output set tolerance (%))/(Iout nom (A) x current share (%)), e.g.
MTC0528S05 will be: R=(5V x 4%)/(0.8A x 50%)=500mΩ
3. The adjust pin can be used to tune Vout to achieve max of 1% tolerance which helps to achieve better current sharing and keeps the resistor (R) value lower.
Overvoltage Protection
Vin+
MTC05
LOAD
Vin-
Inhibit
Figure 15. Overvoltage Protection - Trip & Restart
Vin+
MTC05
LOAD
Vin-
Inhibit
Figure 14. Overvoltage Protection - Latched
8
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Efficiency
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
20
40
60
80
100
20
40
60
80
100
Iout nom %
Iout nom %
Figure 15. Typical efficiency for MTC0528S05
Figure 16. Typical efficiency for MTC0528S28
Start Up Time
Figure 17. Start up time for MTC0528S05 with full resistive load
Figure 18. Start up time for MTC0528S05 at full load
- 62 ms
and 240 µF - 62 ms
Figure 19. Start up time for MTC0528S28 with full resistive load
Figure 20. Start up time for MTC0528S28 at full load
- 76 ms
and 99 µF - 76 ms
9
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Mechanical Details
Pin 12
Pin 7
Pin 1
Pin 6
0.1 (2.54)
0.5
(12.7)
Bottom View
0.012
0.008
0.760
(19.3
0.130
(3.3
0.012
1.260
(32.0
0.3
0.2
)
)
0.3
)
+0.020
0.343
(8.7
-0.012
+0.5
)
-0.3
0.008
0.130
(3.3
0.2
)
1.0 (25.4)
0.177(4.5)
Notes.
MTC05 Connections
1. Dimensions are in inches (mm)
2. Tolerance: 0.02 inches ( 0.5 mm)
3. Weight: 0.02 lb (10 g)
Pin
1
2
3
4
Function
Case
No Pin
- Vin
4. Materials & Finish:
Pin -
Material: Cu Zn30 2.5µm Ni
Finish: 0.2-0.5µm AU (HV 170-200)
+ Vin
Synchronisation
Inhibit
5
6
Case - Material: Aluminium (Al Mg Si 0.5)
Finish: Chromated
7
No Pin
Nameplate - Non-conductive plastic
8
9
10
11
12
Adjust
+Sense
+Vout
-Vout
No Pin
Soldering.
Wave soldering: 260 ºC max for 10 s
Soldering gun: 450 º C max for 5 s
10
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13 April 15
MTC15
•
•
•
•
•
•
•
•
•
•
•
COTS Component for Defense & Avionics Applications
Single & Dual Output Models
Environmental Performance to MIL-STD 810
10 to 50 VDC Transient Input Range
15 to 40 VDC Steady State Input Range
15W Max Output Power
-55ºC to 100ºC Operation
Cooling Plates and Mounting Holes for Easy Integration
Synchronous Rectification on Low Voltage Outputs
MIL-STD 461E/F EMI Performance
Frequency Synchronization
Introduction
The MTC15 is a COTS DC-DC converter developed specifically for the defense and avionics market. This product has a
full military specification while offering the short lead-times and cost benefits of a COTS component.
The MTC15 uses a forward converter design switching at 450 kHz giving excellent size, efficiency and EMC
performance. The input range is designed to provide short term operation over 10 – 50 VDC to enable the converter to
work at full power through the dips and surges commonly seen in vehicle and aircraft applications. A soft start circuit
provides well-controlled outputs with no overshoot.
Comprehensive control functions such as voltage trim, remote sense, inhibit and frequency synchronization to an
external source are standard features.
When used in conjunction with the MTF input filter module the MTC15 complies to MIL-STD 461E/F CE/CS MIL-STD
1275A-D and MIL-STD 704A.
P O W E R I N G T H E W O R L D ’ S C R I T I C A L S Y S T E M S
xppower.com
Input Characteristics
Characteristic
Input Voltage
Transient Input Voltage Range
UVLO Turn On
UVLO Turn Off
Maximum Input Current
Inhibited Input Current
Inrush Current
Minimum
15.5
10
13.5
8.5
Typical
28
Maximum
40
Units
VDC
VDC
VDC
VDC
A
Notes & Conditions
Continuous
10V for 10 s, 50V for 1 s at full load
50
14.8
9.8
See models and ratings table for details
Verified by measurement
Peak value
4.1
40
mA
A
Input Reverse Voltage Protection
External components required
Output Characteristics
Characteristic
Output Voltage
Output Current
Output Set Tolerance
Minimum Load
Minimum
Typical
Maximum
Units
VDC
A
mV
A
Notes & Conditions
See models and ratings table for details
See models and ratings table for details
100
0
No minimum load required
Ripple & Noise
Vout ≤5V
33.5
60
1
mV
%
pk-pk at 100% load and 20 MHz BW
100% load and 20 MHz BW
Vout >5V
Overvoltage Protection(1)
Overload Protection
Overcurrent Protection
Overtemperature Protection(2)
Remote Sense
110
105
105
102
120
150
150
107
0.5
1
%
%
%
ºC
V
Vout nominal
At Vin nominal
Dual outputs only, at Vin nominal
Baseplate temp. with 2ºC to 5ºC hysteresis
Total voltage compensation, single output only.
Vout nominal
Load Regulation
%
Dual outputs only. V1 at Inom,V2 75-100%
Inom. See curves for non-symmetrical loads.
Cross Regulation
1
%
Load Step Output Transient
Load Step Recovery
Line Regulation
3
500
1
%
µs
%
%
Vout nominal 75-25% or 25-75% load changes
Within 1% of Vout nom
Vout nominal at 15.5-40 Vin
Line Step Output Transient
3
Vout nominal at 15.5-40 Vin
Time for Vout to recover to 1% of Vout nom,
with line step 15.5-40 Vin
Line Step Recovery
500
µs
Maximum Output Capacitance
Start Up Time
300 x Iout max
µF
ms
35
See fig. 17 to 20
1. Overvoltage protection can be removed by factory, add suffix “-NV” to the part number, e.g. MTC1528S05-NV.
2: For the option without overtemperature protection add suffix “-NT” to the part number, e.g. MTC1528S05-NT.
Models & Ratings
Output Voltage
Min(1)
Output Current
Input Current(2)
Max Output
Power
Model
Number
Efficiency
Nominal
3.3 VDC
5 VDC
12 VDC
15 VDC
28 VDC
12 VDC
15 VDC
Max(1)
4.0 VDC
6.0 VDC
13.8 VDC
17.0 VDC
30.0 VDC
N/A
Inom
Imax(3)
N/A
No Load
0.04 A
0.05 A
0.04 A
0.05 A
0.03 A
0.03 A
0.03 A
Full Load
0.46 A
0.53 A
0.67 A
0.67 A
0.69 A
0.68 A
0.68 A
10 W
12 W
15 W
15 W
15 W
15 W
15 W
3.3 VDC
4.0 VDC
9.0 VDC
11.0 VDC
20.0 VDC
N/A
3.03 A
2.40 A
1.25 A
1.00 A
0.54 A
0.62 A
0.50 A
77%
81%
80%
80%
78%
80%
80%
MTC1528S3V3
MTC1528S05
MTC1528S12
MTC1528S15
MTC1528S28
MTC1528D12
MTC1528D15
N/A
N/A
N/A
N/A
1.00 A
0.80 A
N/A
N/A
1. Indicates maximum and minimum voltage adjustment (Maximum includes Remote Sense adjustment).
2. Vin = 28 VDC.
3. Maximum output power must not exceed 15 W.
2
P O W E R I N G T H E W O R L D ’ S C R I T I C A L S Y S T E M S
xppower.com
General Specifications
Characteristic
Efficiency
Minimum
Typical
Maximum
Units
%
VDC
VDC
VDC
kHz
Notes & Conditions
See models table and performance graphs
Input to output
Input to case
Output to case
1500
1000
500
Isolation Voltage
Switching Frequency
MTBF
400
See table
450
500
Frequency synch 400-500 kHz. See note
Inhibit
On = TTL High or open circuit; Off = TTL Low or short circuit
Output Voltage
3.3 V
Rth Case - Ambient
17.3 ºC/W
17.6 ºC/W
16.3 ºC/W
16.3 ºC/W
15.3 ºC/W
15.0 ºC/W
15.0 ºC/W
5 V
12 V
15 V
28 V
12 V
15 V
Rth Case - Ambient
Note. Control signal needs to be TTL 0-5 VDC square wave. The trigger is the falling edge.
Environmental
Characteristic
Minimum
-40
Typical
Maximum
+100
+100
+125
95
Units
ºC
Notes & Conditions
Operating Case Temperature
Extended Temperature Range
Storage Temperature
Humidity
Baseplate temperature
-55
ºC
Baseplate temperature. See note (-LT).
-55
ºC
%
Relative humidity
Salt Atmosphere
Altitude
48
hrs
Ft
MIL-STD 810E Method 509.3
MIL-STD 810D Method 500.2
70000
MIL-STD 810D Method 516.3 crash hazard
for ground equipment
MIL-STD 810D Method 514.3 basic
transportation
2000 bumps in each axes
MIL-STD 810D Method 516.3 crash hazard
Shock
100
500
40
g
Hz
g
Vibration
Bump
5
Note. For -55 ºC extended operating range, add suffix ‘-LT’ to the part number. e.g. MTC1528S05-LT
Electromagnetic Compatibility
EMC (see note 2)
Standard
Test Level
Criteria
Notes & Conditions
Conducted Emissions
MIL-STD-461E/F
CE101/CE102
MTF50 module is required
Spikes
Surges
Ripple
250 V for 100 µs
100 V for 50 ms (see note 1) MTF50 module is required
14 VAC pk-pk
MIL-STD-1275A-D
Immunity
MIL-STD-704A
600 V input transient 10µs 50Ω source impedance MTF50 module is required
MIL-STD-704B-F
50 V for 10 ms
CS101, CS114,
Conducted Susceptibility
MIL-STD-461E/F
MTF50 module is required
CS115, CS116
Note.
1. 0.5 Ω source impedance.
2. For compliance to D0160D, DEF-STAN-59-41 and GAM-EG13B please contact sales.
Safety Approvals
Standard
Category
CE
LVD
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MTBF Calculations - Single Outputs
Temperature / Environment
Ground Mobile - GM
Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF
20 ºC
40 ºC
60 ºC
80 ºC
100 ºC
699369 Hrs
463029 Hrs
314033 Hrs
216493 Hrs
150255 Hrs
678618 Hrs
453157 Hrs
311322 Hrs
217962 Hrs
153738 Hrs
334141 Hrs
223314 Hrs
154451 Hrs
109671 Hrs
79262 Hrs
MTBF Calculations - Dual Outputs
Temperature / Environment
Ground Mobile - GM
Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF
20 ºC
40 ºC
60 ºC
80 ºC
100 ºC
686658 Hrs
437272 Hrs
269612 Hrs
160146 Hrs
91008 Hrs
672727 Hrs
431663 Hrs
269025 Hrs
161437 Hrs
92393 Hrs
365034 Hrs
230513 Hrs
145511 Hrs
91280 Hrs
56246 Hrs
Synchronization
The recommended level for the synchronization is a TTL signal but slightly higher levels may be used without a problem.
However the maximum positive level should not exceed 5V. The ideal synchronization signal is a pulse of minimum of
200ns and low and high levels of <0.8V and 4V to 5V respectively within a frequency range of 400kHz to 500kHz. The
trigger is the falling edge of the signal and the impedance of the sync pin is >10kohm. If the synchronization feature is
not required the sync pin is recommended to be connected to ground to prevent any abnormal interference.
4
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Overload Protection
Current or Power Limit Point
Vout
MTC1528SXX has overload protection. After reaching the
limit between 105% to 150% of Inom (current or power
limit point) it will reduce the output voltage protecting the
converter from overheating. When Vout nom is in the range
of 40% to 70% the power will drop to 0 (trip point). The
unit will attempt to restart after 700ms typical.
Trip Point
40-70%
of nominal
Vout
MTC1528DXX has overload protection similar to the single
outputs when both outputs are loaded symmetrically. In
addition, each output also has an individual current limit
between 105% to 150% of Imax to protect applications
with non-symmetrical loads.
105-150%
of nominal Iout
Iout
Figure 1. Overload Protection
Remote Sensing - Single Output Models Only
+Vout
Rlead
Rlead
+Sense
Load
Power Supply
-Vout
Figure 2. MTC15 - Remote Sense Connection Diagram
Notes.
1. To use the remote sense connect +Sense pin to +Vout.
2. When remote sense is not in use leave not connected or connected locally to +Vout.
5
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Voltage Trim - Single Output Models Only
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
3.2
-Vout
+Sense
12
11
Max
Limit max
Vnom
Rx
Rx
13
13
Adj.
Adj.
1
10
100
1000
TRIM UP
TRIM DOWN
Rx (kΩ)
Figure 3. MTC15 - Trim connections
Figure 4. MTC1528S3V3 - Max and Min Adjustment
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
14
13
12
11
10
9
Max
Max
Min
Min
Vnom
Vnom
Limit max
Limit min
Limit max
Limit min
8
7
1
10
100
1000
10
100
1000
Rx (kΩ)
Rx (kΩ)
Figure 5. MTC1528S05 - Max and Min Adjustment
Figure 6. MTC1528S12 - Max and Min Adjustment
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
Max
Max
Min
Min
Vnom
Vnom
Limit max
Limit min
Limit max
Limit min
10
100
1000
1
10
100
1000
Rx (kΩ)
Rx (kΩ)
Figure 8. MTC1528S28 - Max and Min Adjustment
Figure 7. MTC1528S15 - Max and Min Adjustment
Notes.
1. When adjusting the output voltage do not go above the max. output voltage limit (refer to tables) as the overvoltage protection may be triggered when fitted.
2. When adjusting the output voltage do not go below the specified voltage range (refer to tables) as input and output characteristics can not be guaranteed.
3. When not in use leave Adj. pin not-connected.
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EMC Performance Curve Examples
Figure 9. MTC1528S05 without a filter
Figure 10. MTC1528S05 with MTF50 filter
EMC Filter Connection Diagram
+Vin (6)
+Vout (9)
+Vin (6)
+Vout
(14)
RL
MTC1528Sxx
MTF50
-Vin (4)
-Vin (4)
Y Cap (3)
Case (2)
-Vout (11)
-Vout
(12)
Case (2)
Figure 11. MTC15 - EMC Filter connection diagram
7
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Parallel Configuration - Single Output Models Only
+
+Sense
Converter
1
Supply
-
Load
+
+Sense
Converter
2
-
Figure 12. Parallel configuration suitable for redundant operation
R
+
Converter
1
Supply
Adj
-
Load
R
+
Converter
2
Adj
-
Figure 13. Parallel configuration for current sharing
Notes.
1. Up to 3 converters to share within 80% max power;
2. To calculate the resistor (R) for the current sharing use the formula: R=(Vout nom (V) x output set tolerance (%))/(Iout nom (A) x current share (%)), e.g.
MTC1528S05 will be: R=(5V x 4%)/(2.40A x 50%)=167mΩ
3. The adjust pin can be used to tune Vout to achieve max of 1% tolerance which helps to achieve better current sharing and keeps the resistor (R) value lower.
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Efficiency
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
25/25%
50/50%
80/20%
20/80%
20
40
60
80
100
20
40
60
80
100
Iout %
Iout %
Iout %
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Figure 14. Typical efficiency for MTC1528S05
Figure 15. Typical efficiency for MTC1528S28
Figure 16. Typical efficiency for MTC1528D15
Start Up Time
Figure 17. Start up time for MTC1528S05 with full resistive load
Figure 18. Start up time for MTC1528S05 at full load
- 35 ms
and 790 µF - 34 ms
Figure 19. Start up time for MTC1528S28 with full resistive load
Figure 20. Start up time for MTC1528S28 at full load
- 32.4 ms
and 150 µF - 41.6 ms
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Dual Output Cross Regulation
MTC1528D15
Output voltage over minimum load
Iout1=constant nominal load (0.25A); Iout2=variable
MTC1528D12
Output voltage over minimum load
Iout1=constant nominal load (0.3A); Iout2=variable
18.000
17.000
16.000
15.000
14.000
13.000
12.000
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
0.00
0.05
0.10
0.15
0.20
0.25
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
MTC1528D12
MTC1528D15
Output voltage over minimum load
Iout1=constant nominal load (0.62A); Iout2=variable
Output voltage over minimum load
Iout1=constant nominal load (0.5A); Iout2=variable
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
16.500
16.000
15.500
15.000
14.500
14.000
13.500
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
MTC1528D12
Output voltage over minimum load
Iout1=constant nominal load (1.0A); Iout2=variable
MTC1528D15
Output voltage over minimum load
Iout1=constant nominal load (0.8A); Iout2=variable
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
17.000
16.500
16.000
15.500
15.000
14.500
14.000
13.500
13.000
0.00
0.05
0.10
0.15
0.20
0.25
0.00
0.05
0.10
0.15
0.20
0.25
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
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Mechanical Details
14
1
7
0.1 (2.54)
Bottom View
0.008
0.012
0.216
(5.4
0.724
(18.4)
1.024
(26.0
0.2
0.3
)
)
8
0.150 (3.8)
1.276 (32.4)
+0.021
0.500
-0.012
Dual Output
(12.7+0.5
)
-0.3
+0.020
-0.012
0.382
(9.7
Single Output
+0.5
)
-0.3
0.008
0.138
(3.5
0.2
)
1.3 (33.02)
0.177(4.5)
0.3
1.575 0.012(40.0
)
Notes.
MTC15 Connections
1. Dimensions are in inches (mm)
2. Tolerance: 0.02 inches ( 0.5 mm)
3. Weight: 0.04 lb (20 g)
Pin
1
2
3
4
5
6
7
8
Single Output
No Pin
Dual Output
No Pin
Case
No Pin
- Vin
Synchronisation
+ Vin
Case
No Pin
- Vin
Synchronisation
+ Vin
Inhibit
No Pin
No Pin
No Pin
+Sense
-Vout (COM)
Adjust
4. Materials & Finish:
Pin -
Diameter:0.032 (0.8)
Material: Cu Zn30 2.5 µm Ni
Finish: 0.2-0.5 µm AU (HV 170-200)
Mounting Hole - Diameter: 0.102 (2.6)
Inhibit
Case -
Material: Aluminium (Al Mg Si 0.5)
Finish: Chromated
Non-conductive plastic
No Pin
No Pin
-Vout
No Pin
COM
Nameplate -
Soldering.
9
10
11
12
13
14
Wave soldering: 260 ºC max for 10 s
Soldering gun: 450 º C max for 5 s
No Pin
+ Vout
+Vout
11
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P O W E R I N G T H E W O R L D ’ S C R I T I C A L S Y S T E M S
09 March 15
MTC30
•
•
•
•
•
•
•
•
•
•
•
•
COTS Component for Defense & Avionics Applications
Single & Dual Output Models
Environmental Performance to MIL-STD 810
10 to 50 VDC Transient Input Range
15 to 40 VDC Steady State Input Range
35W Max Output Power
-55ºC to 100ºC Operation
Cooling Plates and Mounting Holes for Easy Integration
Synchronous Rectification on Low Voltage Outputs
MIL-STD 461E EMI Performance
Frequency Synchronization
Thermal Warning (Battle Mode) Signal
Introduction
The MTC30 is a COTS DC-DC converter developed specifically for the defense and avionics market. This product has a
full military specification while offering the short lead-times and cost benefits of a COTS component.
The MTC30 uses a forward converter design switching at 450 kHz giving excellent size, efficiency and EMC
performance. The input range is designed to provide short term operation over 10 – 50 VDC to enable the converter to
work at full power through the dips and surges commonly seen in vehicle and aircraft applications. A soft start circuit
provides well-controlled outputs with no overshoot.
Comprehensive control functions such as voltage trim, remote sense, inhibit and frequency synchronization to an
external source are standard features. The MTC30 contains an over temperature warning signal (battle mode) that gives
user control over the temperature shutdown function of the converter.
The internal filtering meets the conducted emission requirements of MIL-STD 461E/F without external components.
When used in conjunction with the MTF input filter module the MTC30 complies to MIL-STD 461E/F CE/CS, MIL-STD
1275A-D and MIL-STD 704A-F.
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Input Characteristics
Characteristic
Input Voltage
Transient Input Voltage Range
UVLO Turn On
UVLO Turn Off
Maximum Input Current
Inhibited Input Current
Inrush Current
Minimum
15.5
10
13.5
8.5
Typical
28
Maximum
40
Units
VDC
VDC
VDC
VDC
A
Notes & Conditions
Continuous
10V for 10 s, 50V for 1 s at full load
50
14.8
9.8
See models and ratings table for details
Verified by measurement
Peak value
4.9
52
mA
A
Input Reverse Voltage Protection
External components required
Output Characteristics
Characteristic
Output Voltage
Output Current
Output Set Tolerance
Minimum Load
Minimum
Typical
Maximum
Units
VDC
A
mV
A
Notes & Conditions
See models and ratings table for details
See models and ratings table for details
100
0
No minimum load required
Ripple & Noise
Vout ≤5V
40
60
1
mV
%
pk-pk at 100% load and 20 MHz BW
100% load and 20 MHz BW
Vout >5V
Overvoltage Protection(1)
Overload Protection
Overcurrent Protection
Overtemperature Protection(2)
Remote Sense
110
105
105
102
120
150
150
107
0.5
1
%
%
%
ºC
V
Vout nominal
At Vin nominal
Dual outputs only, at Vin nominal
Baseplate temp. with 2ºC to 5ºC hysteresis
Total voltage compensation
Vout nominal
Load Regulation
%
Dual outputs only. V1 at Inom,V2 75-100%
Inom. See curves for non-symmetrical loads.
Cross Regulation
1
%
Load Step Output Transient
Load Step Recovery
Line Regulation
3
500
1
%
µs
%
%
Vout nominal 75-25% or 25-75% load changes
Within 1% of Vout nom
Vout nominal at 15.5-40 Vin
Line Step Output Transient
3
Vout nominal at 15.5-40 Vin
Time for Vout to recover to 1% of Vout nom,
with line step 15.5-40 Vin
Line Step Recovery
500
µs
Maximum Output Capacitance
Start Up Time
300 x Iout max
µF
ms
45
See fig. 17 to 20
1. Overvoltage protection can be removed by factory, add suffix “-NV” to the part number, e.g. MTC3028S05-NV.
2: For the option without overtemperature protection add suffix “-NT” to the part number, e.g. MTC3028S05-NT.
Models & Ratings
(3)
Output Voltage
Min(1)
Output Current
Input Current
Max Output
Power
Model
Number
Efficiency
Nominal
3.3 VDC
5 VDC
12 VDC
15 VDC
28 VDC
12 VDC
15 VDC
Max(1)
4.0 VDC
6.0 VDC
13.8 VDC (2)
17.0 VDC (2)
30.0 VDC
N/A
Inom
Imax(4)
N/A
No Load
0.06 A
0.09 A
0.05 A
0.06 A
0.07 A
0.04 A
0.04 A
Full Load
0.89 A
1.08 A
1.41 A
1.54 A
1.51 A
1.33 A
1.33 A
20 W
25 W
32 W
35 W
35 W
30 W
30 W
3.3 VDC
4.0 VDC
9.0 VDC
11.0 VDC
20.0 VDC
N/A
6.06 A
5.00 A
2.70 A
2.33 A
1.25 A
1.25 A
1.00 A
80%
83%
81%
81%
83%
81%
80%
MTC3028S3V3
MTC3028S05
MTC3028S12
MTC3028S15
MTC3028S28
MTC3028D12
MTC3028D15
N/A
N/A
N/A
N/A
2.00 A
1.60 A
N/A
N/A
1. Indicates maximum and minimum voltage adjustment (Maximum includes Remote Sense adjustment).
2. The full trim range is not available when the input is <15.5V.
3. Vin = 28 VDC
4. Maximum output power must not exceed 30 W.
2
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General Specifications
Characteristic
Efficiency
Minimum
Typical
Maximum
Units
%
VDC
VDC
VDC
kHz
Notes & Conditions
See models table and performance graphs
Input to output
Input to case
Output to case
1500
1000
500
Isolation Voltage
Switching Frequency
MTBF
400
See table
450
500
Frequency synch 400-500 kHz. See note
Inhibit
On = TTL High or open circuit; Off = TTL Low or short circuit
Output Voltage
Rth Case - Ambient
3.3 V
5 V
9.2 ºC/W
9.3 ºC/W
8.7 ºC/W
8.6 ºC/W
8.8 ºC/W
8.7 ºC/W
8.7 ºC/W
12 V
15 V
28 V
12 V
15 V
Rth Case - Ambient
Note. Control signal needs to be TTL 0-5 VDC square wave. The trigger is the falling edge.
Environmental
Characteristic
Minimum
-40
Typical
Maximum
+100
+100
+125
95
Units
ºC
Notes & Conditions
Operating Case Temperature
Extended Temperature Range
Storage Temperature
Humidity
Baseplate temperature
-55
ºC
Baseplate temperature. See note.
-55
ºC
%
Relative humidity
Altitude
70000
48
Ft
MIL-STD 810D Method 500.2
MIL-STD 810E Method 509.3
Salt Atmosphere
hrs
MIL-STD 810D Method 516.3 crash hazard
for ground equipment
MIL-STD 810D Method 514.3 basic
transportation
2000 bumps in each axes
MIL-STD 810D Method 516.3 crash hazard
Shock
100
500
40
g
Hz
g
Vibration
Bump
5
Note. For -55 ºC extended operating range, add suffix ‘-LT’ to the part number. e.g. MTC3028S05-LT
Electromagnetic Compatibility
Standard
Test Level
CE101/CE102
TBA
Criteria
Notes & Conditions
MIL-STD-461E/F
DEF-STAN-59-41
Conducted Emissions
Immunity
MTF50 module is required
Spikes
Surges
Ripple
250 V for 100 µs
100 V for 50 ms (see note)
14 VAC pk-pk
MIL-STD-1275A-D
MTF50 module is required
MIL-STD-704A
600 V input transient 10µs 50Ω source impedance MTF50 module is required
MIL-STD-704B-F
50 V for 10 ms
CS101, CS114,
Conducted Susceptibility
MIL-STD-461E/F
MTF50 module is required
CS115, CS116
Note. 0.5 Ω source impedance
Safety Approvals
Standard
CE
Category
LVD
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MTBF Calculations - Single Outputs
Temperature / Environment
Ground Mobile - GM
Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF
20 ºC
40 ºC
60 ºC
80 ºC
100 ºC
572508 Hrs
388615 Hrs
268016 Hrs
186666 Hrs
130030 Hrs
511768 Hrs
344869 Hrs
237025 Hrs
165178 Hrs
115636 Hrs
248881 Hrs
165992 Hrs
113839 Hrs
79883 Hrs
56976 Hrs
MTBF Calculations - Dual Outputs
Temperature / Environment
Ground Mobile - GM
Airbourne Inhabited Cargo - AIC Airbourne Inhabited Fighter - AIF
20 ºC
40 ºC
60 ºC
80 ºC
100 ºC
559576 Hrs
372929 Hrs
247825 Hrs
163916 Hrs
107298 Hrs
537722 Hrs
364801 Hrs
247508 Hrs
167263 Hrs
111652 Hrs
288094 Hrs
193225 Hrs
131394 Hrs
90213 Hrs
62208 Hrs
Synchronization
The recommended level for the synchronization is a TTL signal but slightly higher levels may be used without a problem.
However the maximum positive level should not exceed 5V. The ideal synchronization signal is a pulse of minimum of
200ns and low and high levels of <0.8V and 4V to 5V respectively within a frequency range of 400kHz to 500kHz. The
trigger is the falling edge of the signal and the impedance of the sync pin is >10kohm. If the synchronization feature is
not required the sync pin is recommended to be connected to ground to prevent any abnormal interference.
Thermal Warning (TW)
As it can be seen from the block diagram above the thermal warning pin is an open collector output. It can be used for
an over-temperature protection up to 107 °C by connecting it to the inhibit pin. When the base-plate temperature of the
converter is between 102 °C and 107 °C the transistor will be switched on and will pull the inhibit pin to ground. If the
TW pin is not connected the converter will run without over-temperature protection. This could be used during battle
when the part will operate until destroy itself due to overheating.
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Overload Protection
Current or Power Limit Point
Vout
MTC3028SXX has overload protection. After reaching the
limit between 105% to 150% of Inom (current or power
limit point) it will reduce the output voltage protecting the
converter from overheating. When Vout nom is in the range
of 40% to 70% the power will drop to 0 (trip point). The
unit will attempt to restart after 700ms typical.
Trip Point
40-70%
of nominal
Vout
MTC3028DXX has overload protection similar to the single
outputs when both outputs are loaded symmetrically. In
addition, each output also has an individual current limit
between 105% to 150% of Imax to protect applications
with non-symmetrical loads.
105-150%
of nominal Iout
Iout
Figure 1. Overload Protection
Remote Sensing - Single Output Models Only
+Vout
R lead
+Sense
-Sense
-Vout
Load
Power Supply
R lead
Figure 2. MTC30 - Remote Sense Connection Diagram
Notes.
1. To use the remote sense connect +Sense pin to +Vout and -Sense pin to -Vout.
2. When remote sense is not in use leave pins not connected or connected locally to Vout.
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Voltage Trim - Single Output Models Only
4.2
4.0
3.8
3.6
3.4
3.2
3.0
-Sense
+Sense
25
18
Max
Vnom
Limit max
Rx
Rx
17
17
Adj.
Adj.
1
10
100
1000
TRIM UP
TRIM DOWN
Rx (kΩ)
Figure 3. MTC30 - Trim connections
Figure 4. MTC3028S3V3 - Max and Min Adjustment
6.5
6.0
5.5
5.0
4.5
14.0
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0
9.5
Max
Max
Min
Min
Vnom
Vnom
Limit max
Limit min
Limit max
Limit min
9.0
3.5
8.5
10
100
Rx (kΩ)
1000
1
10
100
1000
Rx (kΩ)
Figure 5. MTC3028S05 - Max and Min Adjustment
Figure 6. MTC3028S12 - Max and Min Adjustment
18
17
16
15
14
13
12
11
10
31
30
29
28
27
26
25
24
23
22
21
20
19
Max
Min
Max
Vnom
Min
Limit max
Limit min
Vnom
Limit max
Limit min
1
10
100
1000
1
10
100
1000
Rx (kΩ)
Rx (kΩ)
Figure 8. MTC3028S28 - Max and Min Adjustment
Figure 7. MTC3028S15 - Max and Min Adjustment
Notes.
1. When adjusting the output voltage do not go above the max. output voltage limit (refer to tables) as the overvoltage protection may be triggered when fitted.
2. When adjusting the output voltage do not go below the specified voltage range (refer to tables) as input and output characteristics can not be guaranteed.
3. When not in use leave Adj. pin not-connected.
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EMC Performance Curve Examples
Figure 9. MTC3028S12 without a filter
Figure 10. MTC3028S12 with MTF50 filter
EMC Filter Connection Diagram
+Vin (6)
+Vout (9)
+Vin (6)
+Vout
(19,20)
RL
MTC3028Sxx
MTF50
-Vin (4)
Y Cap (3)
Case (2)
-Vin (4)
-Vout (11)
-Vout
(21,22)
Case (2)
Figure 11. MTC30 - EMC Filter connection diagram
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Parallel Configuration - Single Output Models Only
+
+Sense
Converter
1
Supply
-
Load
+
+Sense
Converter
2
-
Figure 12. Parallel configuration suitable for redundant operation
R
+
Converter
1
Supply
Adj
-
Load
R
+
Converter
2
Adj
-
Figure 13. Parallel configuration for current sharing
Notes.
1. Up to 3 converters to share within 80% max power;
2. To calculate the resistor (R) for the current sharing use the formula: R=(Vout nom (V) x output set tolerance (%))/(Iout nom (A) x current share (%)), e.g.
MTC3028S05 will be: R=(5V x 4%)/(5A x 50%)=800mΩ
3. The adjust pin can be used to tune Vout to achieve max of 1% tolerance which helps to achieve better current sharing and keeps the resistor (R) value lower.
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Efficiency
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
20
40
60
Iout %
80
100
25/25%
50/50%
80/20%
20/80%
20
40
60
80
100
Iout %
Iout %
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Vin = 15.5 V
Vin = 28.0 V
Vin = 40.0 V
Figure 14. Typical efficiency for MTC3028S05
Figure 15. Typical efficiency for MTC3028S28
Figure 16. Typical efficiency for MTC3028D15
Start Up Time
Figure 17. Start up time for MTC3028S05 with full resistive load - 34 ms
Figure 18. Start up time for MTC3028S05 at full load
and 1500 µF - 45 ms
Figure 19. Start up time for MTC3028S15 with full resistive load - 46 ms
Figure 20. Start up time for MTC3028S15 at full load
and 700 µF - 47 ms
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Dual Output Cross Regulation
MTC3028D15
Output voltage over minimum load
Iout1=constant nominal load (0.5A); Iout2=variable
MTC3028D12
Output voltage over minimum load
Iout1=constant nominal load (0.62A); Iout2=variable
17.500
17.000
16.500
16.000
15.500
15.000
14.500
14.000
13.500
13.000
12.500
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.00
0.10
0.20
0.30
0.40
0.50
0.60
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
MTC3028D15
MTC3028D12
Output voltage over minimum load
Iout1=constant nominal load (1.0A); Iout2=variable
Output voltage over minimum load
Iout1=constant nominal load (1.25A); Iout2=variable
17.000
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
16.500
16.000
15.500
15.000
14.500
14.000
13.500
13.000
12.500
0.00
0.10
0.20
0.30
0.40
0.50
0.00
0.20
0.40
0.60
0.80
1.00
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
MTC3028D15
MTC3028D12
Output voltage over minimum load
Iout1=constant nominal load (1.6A); Iout2=variable
Output voltage over minimum load
Iout1=constant nominal load (2.0A); Iout2=variable
14.000
13.500
13.000
12.500
12.000
11.500
11.000
10.500
10.000
17.000
16.500
16.000
15.500
15.000
14.500
14.000
13.500
13.000
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
Iout2 [A]
Iout2 [A]
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
Vout2@Vin=15.5V
Vout2@Vin=28V
Vout2@Vin=40V
Vout1@Vin=15.5V
Vout1@Vin=28V
Vout1@Vin=40V
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Mechanical Details
26
1
1.512 (38.4)
1.811
Bottom View
0.1 (2.54)
0.012
0.008
0.154
(3.9
0.3
(46.0
)
0.2
)
14
13
0.150 (3.8)
1.984 (50.4)
+0.020
0.500
(12.7
-0.012
+0.5
)
-0.3
0.008
0.142
(3.6
0.2
)
2.000 (50.8)
0.177(4.5)
0.3
2.283 0.012(58.0
)
Notes.
MTC30 Connections
1. Dimensions are in inches (mm)
2. Tolerance: 0.02 inches ( 0.5 mm)
3. Weight: 0.15 lb (70 g)
Pin
1
2
3
4
5
6
7
8
Single Output
Dual Output
No Pin
Case
No Pin
- Vin
No Pin
+ Vin
No Pin
No Pin
Case
No Pin
- Vin
No Pin
+ Vin
No Pin
4. Materials & Finish:
Pin -
Diameter: 0.032 (0.8)
Material: Cu Zn30 2.5 µm Ni
Finish: 0.2-0.5 µm AU (HV 170-200)
Mounting Hole - Diameter: 0.102 (2.6)
Case -
Material: Aluminium (Al Mg Si 0.5)
Finish: Chromated
Non-conductive plastic
Synchronisation
No Pin
Synchronisation
No Pin
Inhibit
No Pin
Thermal Warning (TW)
No Pin
Nameplate -
Soldering.
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Inhibit
No Pin
Thermal Warning (TW)
Signal GND (SGND)
No Pin
Wave soldering: 260 ºC max for 10 s
Soldering gun: 450 º C max for 5 s
No Pin
No Pin
No Pin
No Pin
No Pin
+ Vout
+ Vout
COM
COM
- Vout
- Vout
No Pin
No Pin
No Pin
Adjust
+ Sense
+ Vout
+ Vout
- Vout (COM)
- Vout (COM)
No Pin
No Pin
- Sense
No Pin
No Pin
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Email
Web
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