MTO1212TF/ES [CRANE]
DC/DC CONVERTERS 12 & 28 VOLT INPUT; DC / DC转换器12 ＆ 28伏输入
| 型号： | MTO1212TF/ES |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | DC/DC CONVERTERS 12 & 28 VOLT INPUT |
| 文件： | 总9页 (文件大小：123K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
MTO SERIES
15 WATT
DC/DC CONVERTERS
12 & 28 VOLT NPUT
• –55°C to +85° C operation
• 9 to 16 or 16 to 36 VDC input
• Fully isolated
I
• Opto-coupler feedback
• Fixed frequency, 250 kHz typical
• Topology – Push-Pull Forward
• 50 V for 50 ms transient protection
• Inhibit function
MODELS
VDC OUTPUT
TRIPLE
+5 & ±12
+5 & ±15
• Indefinite short circuit protection
• Up to 79% efficiency
Size (max.): Non-flanged, case F4, 1.950 x 1.350 x 0.505 inches (49.53 x 34.29 x 12.83 mm)
Flanged, case J5, 2.720 x 1.350 x 0.505 inches (69.09 x 34.29 x 12.83 mm)
See Section B8, cases F4 and J5, for dimensions.
Weight:
53 grams typical
Screening: Standard or ES. See Section C2 for screening options, see Section A5 for
ordering information.
DESCRIPTION
Interpoint’s MTO Series™ of DC/DC converters delivers 15 watts of
output power with three output voltages and a choice of two input
voltage ranges. The MTO Series converters are packaged in
hermetically sealed metal cases and operate at full load over a case
temperature range of -55°C to +85°C (measured at the base plate
of the converter).
FEATURES
An inhibit terminal, pin 8, provides shut-down and start-up control.
Applying a logic low (<0.8 V) will disable the output of the converter
reducing input current to 8 mA, typical. Leaving the terminal uncon-
nected or connecting it to Vin will enable the converter. The inhibit
pin has an open circuit voltage of approximately 10 volts.
CONVERTER DESIGN
Soft-start provides a controlled 20 milliseconds turn-on to minimize
inrush current and reduce overshoot at initial start-up or when inhibit
is released.
The push-pull forward topology coupled with pulse-width modulation
minimizes output noise and maintains good regulation. Nominal
switching frequency is 250 kHz. Although an internal input filter
reduces input ripple current, for applications requiring conformance
to MIL-STD-461C, CE03, use the MTO in conjunction with
Interpoint’s FM-461 EMI filter.
Internal current limiting circuitry protects all three outputs against
short circuits. When output power exceeds approximately 125% of
maximum output power, the output currents are limited. In addition,
separate current limiting circuitry protects each output individually.
Operating at maximum ratings may require removing self-generated
heat. To increase heat dissipation, heat conducting material can be
used in contact with the converter’s base plate. Interpoint’s Thermal
Mounting Pad (TMP), model TMP-002, is designed for use with the
MTO converter.
PACKAGING
MTO converters are packaged in hermetically sealed metal cases.
The cases are constructed of cold-rolled steel with a fused tin finish.
MTO converters can be purchased in a flanged or non-flanged case.
The flanged option provides increased heat dissipation and also
provides greater stability when mechanically secured.
B4-23
MTO SERIES
15 WATT
DC/DC CONVERTERS
INHIBIT
TYPICAL CHARACTERISTICS
Output Voltage Temperature Coefficient
• 150 ppm/°C typical
Input to Output Capacitance
• 80 pF typical
Current Limit
ABSOLUTE MAXIMUM RATINGS
Output Power
Inhibit TTL Open Collector
• Logic low (output disabled)
V = <0.8 V
Inhibit pin current < 2.0 mA
• Referenced to input common
• Logic high (output enabled)
Unconnected or connected to Vin
• 15 watts
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +125°C
• 125% of full load typical
Isolation
• 100 megohm minimum at 500 V
Conversion Frequency
• 250 kHz typical
Inhibit Pin Voltage (unit enabled)
• 10 V typical
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• MTO12XXT 9 to 16 VDC continuous
• MTO28XXT 16 to 36 VDC continuous
• MTO12XXT 25 V for 50 msec transient
• MTO28XXT 50 V for 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +85°C full power
• –55°C to +115°C absolute
Derating Output Power/Current
• Linearly from 100% at 85°C to 0% at 115° C
Electrical Characteristics: 25°C Tc, 28 VDC Vin (12 VDC for 12V models), 100% load, unless otherwise specified.
MTO1212T
MIN TYP
4.95 5.0
MTO1215T
MAX MIN TYP
5.05 4.95 5.0
MTO2812T
MTO2815T
MIN TYP
4.95 5.0
PARAMETER
CONDITION
MAIN
MAX
MIN TYP MAX
MAX
UNITS
5.05
4.95
5.0
5.05
5.05
OUTPUT VOLTAGE
+ AUXILIARY
11.88 12.0 12.12 14.85 15.0 15.15 11.88 12.0 12.12 14.85 15.0 15.15
11.88 12.0 12.12 14.85 15.0 15.15 11.88 12.0 12.12 14.85 15.0 15.15
VDC
– AUXILIARY
1
MAIN
100
—
—
—
—
—
—
—
—
—
—
—
9
—
—
—
—
—
—
—
—
5
2000
±208
10.0
2.5
2.5
15
100
—
—
—
—
—
—
—
—
—
—
—
9
—
—
—
—
—
—
—
—
5
2000
±167
10.0
2.5
2.5
15
100
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
—
—
—
—
—
5
2000
±208
10.0
2.5
2.5
15
100
—
—
—
—
—
—
—
—
—
—
—
16
—
—
—
—
—
—
—
—
—
5
2000
±167
10.0
2.5
2.5
15
OUTPUT CURRENT
OUTPUT POWER
mA
W
AUXILIARY
MAIN
+ AUXILIARY
– AUXILIARY
TOTAL
OUTPUT RIPPLE
MAIN
80
80
80
80
mV p-p
mV
VOLTAGE, BW = 1 MHZ
LINE REGULATION
± AUXILIARY
MAIN
30
30
30
30
10
10
10
10
V
= MIN. TO MAX.
±AUXILIARY
MAIN
30
10
30
12
—
48
30
10
30
12
—
60
30
10
30
28
—
48
30
10
30
28
—
60
in
LOAD REGULATION
NO LOAD TO FULL
20
20
20
20
mV
± AUXILIARY
CONTINUOUS
TRANSIENT 50 ms
48
60
48
60
16
16
36
36
VDC
V
INPUT VOLTAGE
—
25
—
25
50
50
NO LOAD
—
—
60
—
—
60
—
—
30
—
—
30
INPUT CURRENT
FULL LOAD
INHIBITED
—
—
—
8
1670
10
—
—
—
8
1670
10
—
—
—
8
700
10
—
—
—
8
700
10
mA
INPUT RIPPLE
CURRENT
—
50
79
100
—
—
50
79
100
—
—
20
79
50
—
—
20
79
50
—
mA p-p
%
EFFICIENCY
76
76
76
76
Note
1. Minimum load required for full output capability on auxiliary outputs. Minimum current can be reduced when dual outputs are used at reduced loads.
B4-24
MTO SERIES
15 WATT
DC/DC CONVERTERS
Positive
Input
1
2
+5 Vout
Pre-
Regulator
Error
Amp
Pulse
3
5
Output
Common
Width
Modulator
Short Circuit Amp
Pass Transistor
Positive
Auxiliary
Output
Input 10
Common
Linear
Regulator
8
Inhibit
7
Case Ground
Linear
Regulator
4
Negative
Auxiliary
Output
Pass Transistor
FIGURE 1: SIMPLIFIED SCHEMATIC
(1)
Positive
Input
Optional
Pullup
BIAS
2N3904
Inhibit
(2)
13V
10K
3.9K
3K
9K
Input
Common
(10)
FIGURE 2: INHIBIT INTERFACE EXAMPLE
B4-25
MTO SERIES
15 WATT
DC/DC CONVERTERS
PIN OUT
Squared corner and dot on
top of cover indicate pin one.
Pin
1
Designation
Positive Input
2
+5 VDC Output
Output Common
Negative Aux. Output
Positive Aux. Output
No Connection
Case Ground
3
1
2
3
4
7
5
6
4
5
BOTTOM VIEW
MTO
6
7
8
Inhibit
10
9
8
9
No Connection
Input Common
10
Dotted line outlines flanged package option.
See Section B8, Cases F4 and J5, for dimensions
FIGURE 3: PIN OUT
Typical Performance Curve: 25°C Tc
82
MODEL NUMBERING KEY
28 V
18 V
IN
IN
80
78
76
74
72
70
68
66
MTO
12 12
T
F / ES
Base Model
Input Voltage
Output Voltage
(Aux. Vout)
36 V
IN
Number of Outputs
(T = triple)
Case Option
(Non-flanged case has no designator in
this position)
Screening
(Standard screening has no designator
in this position.)
2
4
6
8
10 12
14 16
Output Power (Watts)
Representative of all models
MTO2815T Efficiency
FIGURE 4
24223-001-DTS Rev A
DQ# 1021
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. MTO Series is a trademark of Interpoint.
Copyright © 1990 - 1999 Interpoint. All rights reserved.
B4-26
CASE F
CASES
Dot on top of case indicates pin one
Materials
Header Case F1
Cold Rolled Steel/Nickel/Gold
Cases F2 - F4
Cold Rolled Steel/Nickel/Tin
Cover Case F1
CASE F
BOTTOM VIEW
See Figures 20 - 23 for pin configuration
1.350 max
(34.29)
Kovar/Nickel
Cases F2 - F4
Cold Rolled Steel/Nickel/Tin
Pins
#52 alloy (all cases)
MHV Series Triple – compression glass seal
MTR Series Triple, case F1 – ceramic seal
MTR Series Triple, case F2 – compression glass seal
HUM40 – compression glass seal or ceramic seal
Case F3 – compression glass seal
Case F4 – compression glass seal or ceramic seal
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.
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
FIGURE 19: CASE F MAXIMUM DIMENSIONS
BOTTOM VIEW CASE F1
MTR Series Triple and MHV Series Triple: Screening – Standard, ES, or 883
Platform
Bathtub
Dot on top of case indicates pin one
Seam Seal
1.170
(29.72)
1
2
9
3
8
4
7
5
6
0.040 dia.
(1.02)
MTR
MHV
Series
Series
10
0.170
(4.32)
0.000
FIGURE 20: CASE F1
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.
B8-12
CASE F
CASES
BOTTOM VIEW CASE F4
MTO and MHL Series: Screening – Standard or ES
HR153 Series: no screening options
Squared corner and dot on top
of case indicate pin one.
Solder Seal
1.170
(29.72)
1
2
9
3
8
4
7
5
6
0.040 dia.
(1.02)
Solder Tip-off
10
0.170
(4.32)
0.000
FIGURE 23: CASE F4
B8-14
CASE J
CASES
Dot on top of case indicates pin one
CASE J
BOTTOM VIEW
See Figures 36 - 40
for pin configuration
1.350 max
(34.29)
2.720 max
(69.09)
Flange Thickness:
Cases J1 and J5
Case J2
0.060 (1.52)
0.073 (1.85) max
Cases J3 and J4
0.067 +0.005/-0.007 (1.70 +0.13/-0.8)
Materials
Header Case J1
Cold Rolled Steel/Nickel/Gold
Cases J2 - J5
Cold Rolled Steel/Nickel/Tin
Cover Case J1
Kovar/Nickel
Case J2 - J5
Cold Rolled Steel/Nickel/Tin
#52 alloy (all cases)
Pins
Case J1
MHV Series Triple – compression glass seal
MTR Series Triple – ceramic seal
Cases J2 - J5
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 35: CASE J MAXIMUM DIMENSIONS
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.
B8-22
CASE J
CASES
BOTTOM VIEW CASE J4
Flanged cases: Designator required in Case Option position of model number.
FMD28-461 EMI Filter (down-leaded): Screening – Standard or ES
Squared corner and dot on top
of case indicate pin one.
Solder Seal
1.173
(29.79
1
2
3
0.040 dia.
(1.02)
0.162 dia
(4.11)
0.673
(17.09)
Solder Tip-off
5
4
0.173
(4.39)
0.000
FIGURE 39: CASE J4
BOTTOM VIEW CASE J5
Flanged cases: Designator required in Case Option position of model number
for MHL Series and MTO Series only.
MHL Series, MTO Series, MTW Series: Screening – Standard or ES
HR300 Series: no screening options
Squared corner and dot on top
of case indicate pin one.
Solder Seal
1.173
(29.79
1
2
9
3
8
4
7
5
6
0.040 dia.
(1.02)
0.162 dia
(4.11)
0.673
(17.09)
Solder Tip-off
10
0.173
(4.39)
0.000
FIGURE 40: CASE J5
B8-25
QA SCREENING
85°C PRODUCTS
85°C PRODUCTS
TEST (85°C Products excluding HR products)
STANDARD
/ES
yes
yes
yes
yes
yes
PRE-CAP INSPECTION
Method 2017
yes
no
TEMPERATURE CYCLE (10 times)
Method 1010, Cond. B, -55°C to 125°C
CONSTANT ACCELERATION
Method 2001, 500 g
no
BURN-IN
96 hours at 70°C ambient (typical)
FINAL ELECTRICAL TEST MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
HERMETICITY TESTING
no
yes
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
no
no
yes
yes
no
-3
Gross Leak, Dip (1 x 10 )
yes
FINAL VISUAL INSPECTION
Method 2009
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Applies to the following products:
MFW Series
MTW Series
MHE/MLP Series
MHL Series
MRH Series
MTO Series
MSR Series
DCH Series
FM/FMA/FMB EMI Filters
MSF EMI Filter
C2-12
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