INTERPOINT SMRT28

Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Features
Built in MIL-STD-461 EMI filter
Output trim from 51% to 124% of nominal
• Operating temperature -55° to +125°C
• Qualified to MIL-PRF-38534 Class H and K
• Radiation hardness assurance (RHA) to
level F 300 kRad(Si)
• Input voltage range 19 to 56 VDC
• Transient protection 80 V for 100 ms
• Fully isolated, 5 port isolation
• Dual magnetic feedback
• Fixed high frequency switching
• Remote sense
• Inhibit function
• Synchronization input
models
• Indefinite short circuit protection
• Radiation tolerant to
-- 1 x
1012
protons/cm2
VDC Output
Single
3.3
5
8.7
12
15
neutron or proton fluence
-- 1011 rad(Si)/sec dose rate
-- 3 x 105 rad(Si) total dose
-- SEE - LET to 80 MeV cm2/mg
triple
+3.3 & ±12
+3.3 & ±15
+5 & ±7
+5 & ±12
+5 & ±15
• Meets MIL-STD-704A transient standards
description
The SMRT28 Series™ of DC/DC converters offers up to 35
watts of power in a radiation tolerant design. The low profile
SMRT28 converters are manufactured in Interpoint’s fully certified and qualified MIL-PRF-38534 production facility and packaged in hermetically sealed steel cases. They are ideal for use in
programs requiring high reliability, small size, and high levels of
radiation hardening assurance.
The SMRT28 converters are switching regulators which use a
two-phase, phase shifted flyback design with a nominal switching
frequency of 300 kHz. Close regulation is maintained with
advanced constant frequency pulse width modulation design
techniques. The SMRT28’s feed-forward compensation and
discontinuous topologies provide high levels (80 dB peak) of
input-to-output ripple rejection.
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • [email protected]
www.interpoint.com
DUAL
±5
±12
±15
A minimum load of 2% of full load should be used on outputs at
TID of 100 kRad(Si) or greater to ensure tight regulation over the
full input range. The converter should not be inhibited or operated below 19 Vin above 5x104 rad(Si) total dose.
Two independent feedback loops are used to regulate the dual
and triple outputs, one feedback loop regulates the two-phased
single output. Each set of outputs is electrically isolated from the
other and from the input. This product configuration eliminates
cross regulation effects between output sets.
Configurations:
• Single Output: One two-phase single output
• Dual Output: Two single-phase single outputs
• Triple Output: One single-phase independent
Main output and one single-phase dual output.
(± Auxiliary output)
Page 1 of 19
SMRT28 Rev E - 20100216
The information in this document is a derivative of a document cleared
by the Department of Defense (DoD) Office of Security Review (OSR) for
public release. OSR case number 09-S-1960 dated June 22, 2009.
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Undervoltage Lockout
At the highest dose rate (1011 rad(Si)/sec dose rate) there will be
an upset resulting in a dip in the voltage. This is non-destructive
to the unit. The converter will operate through the upset.
The converters have an undervoltage lockout that will allow
power conversion at approximately 17 volts on a rising input
voltage and a conversion shut-down on a falling voltage at
approximately 14.5 volts.
Screening
Inhibit Function
The SMRT28 Series incorporates an inhibit terminal that can be
used to disable internal switching. It is not recommended to tie
the Inhibit pin of an SMRT28 directly to the Inhibit pin of another
converter as the SMRT28 Inhibit pin can sink current. When
pulling multiple inhibit signals low a separate interface is recommended for each SMRT28. The converter is inhibited when the
inhibit pin is pulled low (0.4 V). In the inhibit mode the inhibit pin
current requirement is less than ~2 mA. The converter resumes
normal operation when a high (≥ 2.4 V) signal or open circuit is
applied to the inhibit pin. The open circuit voltage of the inhibit is
5 to 6 volts. Although open circuit is the preferred method for the
enabled state, up to 10 volts may be applied to the inhibit pin.
Synchronization
The Sync Input is isolated which allows Sync Return to be tied to
the primary side, secondary side, or float with respect to all inputs
and outputs. Input current into this pin is limited by a series 1 k
ohm resistance.
SMRT28 converters offer the following screening options:
Space Prototype (O), Class H, or Class K. Radiation tolerant to
Radiation Hardness Assurance (RHA) levels of “-” (O), “P”, “R” or
“F”, per MIL-PRF-38534. Interpoint model numbers use an “O” in
the RHA designator position to indicate the “-” (dash) Radiation
Hardness Assurance level of MIL-PRF-38534, which is defined as
“no RHA”. See Screening Tables 1, 2 and 3 for more information.
EMI
The SMRT28 has a built-in EMI input filter which brings the
conducted emissions into compliance with both methods of
MIL-STD-461, revisions C-CE03 and D-/E-/F-CE102.
Sense
Tight load regulation is maintained via wide bandwidth magnetic
feedback and through the use of remote sense on single output
models and one output (Output “A”) of the dual units. The sense
feature can be used to adjust the output voltage by connecting a
resistor between the positive sense line and the positive output.
Output Voltage Trim
The output voltage of each set can be trimmed from 51% to
125% of nominal (varies by model, see trim instructions on page
4). The following are “sets” of voltages in relation to trim:
• Triple output models: Main output is one set, the dual outputs
are another set.
• Dual outputs: Each output is a “set.”
One set can be trimmed using the trim pin, the other set can
be trimmed (up only) using the positive sense pin.
• Single: One set
Radiation Tolerance
The SMRT28 DC/DC converters are designed to provide continuous normal operation through radiation levels associated with
space missions and in tactical and strategic military environments. The converters will operate normally in radiation environments with up to 1 x 1012 neutrons per square centimeter neutron
fluence, 1011 rad(Si) per second dose rate, and 3x105 rad(Si)
total dose.
Sense Adjust Instructions for
Output A on Dual Models
Adjust Up Only
(See trim tables on page 4 for more options)
RAdjust = 240
Vout - Vnom
Vmax - Vout
)
Vout = desired output voltage
Vnom = nominal unadjusted output voltage
Vmax = maximum achievable output voltage
5V Vmax = 6.0 V
12V Vmax = 14.68 V
15V Vmax = 18.36V
Note: RADJUST should be connected
between Sense A (pin 8) and Vout A (pin 11).
These levels of radiation tolerance make the SMRT28 converters
suitable for electronics in programs where operation in high radiation environments is required.
www.interpoint.com
(
Page 2 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Operating Conditions and characteristics
Input Voltage Range
•19 to 56 VDC continuous
•80 V for 100 ms transient
Conversion Frequency
•300 kHz typ 270 kHz min, 330 kHz max
Radiation (will operate through)
•1x1012 neutrons/cm2 neutron or proton fluence
•Radiation dose rate 1011 rad(Si) /sec
•Total dose up to 300 kRad(Si)
•SEE - LET to 80 MeV cm2/mg
Output Power
•Up to 35 watts depending on model
Lead Soldering Temperature (10 sec per pin)
•300°C
Sync and inhibit
Storage Temperature Range (Case)
•-65°C to +150°C
Sync
•Input frequency 270-330 kHz
•Duty cycle 20% min, 80% max
•2.5 V p-p minimum amplitude
•10 V p-p maximum amplitude
•Sync circuit is floating and isolated
•If sync is used at lower end of the range, full load
operation is not guaranteed.
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
Power Dissipation (Pd)
•20 to 31 W
Inhibit
•Active low (output disabled)
‣‣INH referenced to input common
‣‣Active low, pulled to 0.4 V or lower
‣‣Inhibit pin current < 2mA
•Active high (output enabled)
‣‣High >2.4V
‣‣Not to exceed 10V
‣‣Open pin voltage 5 to 6 volts
Output Voltage Temperature Coefficient
•100 ppm/°C max
Current Limit
•125% of full load typical
Isolation at 25°C
•100 megohm minimum at 500 V
Audio Rejection
•50 dB typical
mechanical and environmental
Size (maximum)
•2.705 x 2.205 x 0.400 inches (68.71 x 56.01 x 10.16 mm)
‣‣See case S for dimensions.
Weight (maximum)
•100 grams maximum
www.interpoint.com
Screening
Space Prototype, Class H, or Class K are radiation tolerant
to Radiation Hardness Assurance (RHA) levels of “-” (O), “P”,
“R”, or “F” per MIL-PRF-38534. Interpoint model numbers use
an “O” in the RHA designator position to indicate the “-” (dash)
Radiation Hardness Assurance level of MIL-PRF-38534, which is
defined as “no RHA”.
See Screening Tables 1, 2 and 3 for more information. Available
configurations: OO, HP, HR, KP, KR, KF
Page 3 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
TRIM TABLEs
Trim Up
Trim down
Singles
Singles
Rtrim should be connected between the Trim pin and Positive Sense pin. Rtrim should be connected between the Trim pin and Sense Return pin.
Duals
Rtrim should be connected between the Trim B pin and Positive Vout B
pin. This only trims output B, output A can use the sense pin to trim up
only. See page 2 for instructions on trimming up output A.
Triples
Rtrim should be connected between the Trim A pin and Positive Vout A pin to adjust the Main output.
Rtrim should be connected between the Trim B pin and Positive Vout B pin to adjust the Auxiliary outputs.
Rtrim
Vout - Vmin
=K(
)
Vnom - Vout
Vnom
K
Vmin
% of VNOM
3.3
3500
3.18
96
5.0
4520
4.16
83
7.0
8020
5.47
78
9040
6.13
70
12
11030
7.05
58
15
12900
7.65
51
Note: Do not exceed maximum current rating when trimming down,
1
14
3
Trim 12
2
4
SMRT Single
Triples
Rtrim should be connected between the Trim A pin and Vout A Return pin
to adjust the Main outputs.
Rtrim should be connected between the Trim B pin and Vout B Return pin
to adjust the Auxiliary outputs.
Rtrim = K (
Vmax - Vout
)
Vout - Vnom
Vnom
K
VmAX
% of VNOM
3.3
3000
3.70
112
5.0
3000
6.26
125
7.0
5300
8.27
118
8.7
5300
10.46
149
12
5300
14.69
122
15
5300
18.54
124
Note: Do not exceed maximum power rating when trimming up.
1
14
3
Trim 12
2
13
13
SMRT Single
4
11
5
Rtrim should be connected between the Trim B pin and Vout B Return pin.
This only trims output B, output A can use the sense pin to trim up only.
Vout = Desired Voltage; K/Vmax/Vnom from table below.
Vout = Desired Voltage; K/Vmin/Vnom from table below.
8.7
Duals
5
10
11
10
Sense Return 9
9
8
Sense 8
1
Vout B Return 14
3
Trim B 12
2
1
14
2
3
4
SMRT Dual
5
1
14
2
3
4
5
4
Vout B 13
11
11
10
9
8
10
9
8
1
14
2
Trim A 12
3
+Vout B 11
4
10
5
9
Trim B 8
Vout A Return 13
SMRT Triple
Trim A 12
11
Vout B Return 10
9
Trim B 8
Figure 1: Trim Down Diagrams
www.interpoint.com
SMRT Dual
5
Trim B 12
Vout A 13
SMRT Triple
13
Figure 2: Trim Up Diagrams
Page 4 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Pin
Single Output
Dual Output
Triple Output
Vin Return
Vin Return
Vin Return
1
Vin
3
Inhibit
2
4
5
8
9
10
11
12
13
14
PIN OUT
Vin
Inhibit
Sync In
Sync Return
Sense
Sense Return
Vout A Return
Vout A
Trim
Sync In
Sync Return
Sense A
Sense A Return
Vout A Return
Vout A
Trim B
Vout A
Vout A Return
Vout B
Vout B Return
Vin
Inhibit
Sync In
Sync Return
Trim B
Vout B Negative
Vout B Return
Vout B Positive
Trim A
Vout A
Vout A Return
1
14
2
13
3
TOP VIEW
4
5
See case S for dimensions.
12
11
10
9
8
Figure 3: Pin Out
Inhibit: single, dual and triple
Sync In
Sense Lines
Trim (all)
www.interpoint.com
PINS NOT IN USE
Leave unconnected
Connect to Sync Return
Must be connected to appropriate outputs
Leave unconnected
Page 5 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
model numbering key
SMRT
Base Model
Input Voltage
SMD Numbers
28 515 T / K
F
Standard Microcircuit
Drawing (SMD)
SMRT28 Similar Part
5962F0622001KXC
Smrt283R3S/KF
5962F0622101KXC
Smrt2805S/KF
5962F0821001KXC
Smrt2812S/kf
5962F0622201KXC
Smrt2815S/kf
5962F0622301KXC
Smrt2805D/kf
5962F0720201KXC
Smrt2812D/kf
5962F0622401KXC
Smrt2815D/kf
Screening
5962F0821101KXC
Smrt283R312T/kf
Radiation Hardness
Assurance (RHA)
5962F0821201KXC
Smrt283R315T/kf
5962F0622501KXC
Smrt28512t/KF
5962F0622601KXC
Smrt28515t/KF
Output Voltage
(single or dual Vout for single or dual models
main and aux. Vout for triple models)
Number of Outputs
(S=single, D=dual, T=triple)
The SMD number shown is for Class K screening and
Radiation Hardness Assurance (RHA) level F. See the
SMD for the numbers for other screening and radiation
levels. For exact specifications for an SMD product, refer
to the SMD drawing. SMDs can be downloaded from:
http://www.dscc.dla.mil/programs/smcr
On
model selection
the lines below, enter one selection from each category to determine the model number.
Category
Selection
Base Model and
Input Voltage
SMRT28 is the only
available selection
_______
/
SMRT28
Output Voltage 1
Number of Outputs 2
Screening 3
RHA 4
3R3, 05, 12, 15
S
O
O
05, 12, 15
D
H
P
3R312, 3R315, 512, 515
T
K
R
F
Notes:
1. Output Voltage: An R indicates a decimal point. 3R3 is 3.3 volts out. The 3R3 output voltage is only available in single and triple output models. The 3R312
and 3R315 triple output converters are +3.3 volt main and ±12 or ±15 volt auxiliaries. 512 and 515 triple output converters are +5 volt main and ±12 or ±15 volt
auxiliaries.
2. Number of Outputs: S is a single output, D is a dual output, and T is a triple output
3. Screening: A screening level of O is a Space Prototype and is only used with RHA O. See Screening Tables 2 and 3 for more information.
4. RHA: Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of MIL-PRF-38534,
which is defined as “no RHA.” RHA O is only available with Screening level O. See Screening Table 3 for more information.
www.interpoint.com
Page 6 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
single output models
PARAMETER
CONDITIONS
OUTPUT RIPPLE
LINE REGULATION 2
LOAD REGULATION
TOTAL REGULATION 1
VOUT
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 3
EFFICIENCY
LOAD FAULT 4, 5
SMRT288R7S
UNITS
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
3.23
3.30
3.37
4.90
5.00
5.10
8.52
8.70
8.87
0
—
6.97
0
—
6.0
0
—
4.0
A
0
—
23
0
—
30
0
—
35
W
10 kHz - 20 MHz
—
—
280
—
—
200
—
—
200
mV p-p
VIN = 19, 50 VDC
—
5
30
—
5
30
—
5
30
mV
—
5
40
—
5
40
—
5
80
VIN = 19, 50
—
—
90
—
—
70
—
—
80
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
3.0
—
3.6
4.7
—
5.3
8.3
—
9.1
VDC
CONTINUOUS
TRANSIENT 1 100 ms
19
28
56
19
28
56
19
28
56
VDC
0
—
80
0
—
80
0
—
80
V
INHIBITED
—
—
50
—
—
50
—
—
50
NO LOAD
—
—
110
—
—
110
—
—
115
10 kHz - 20 MHz
—
10
50
—
10
50
—
10
50
2
OUTPUT POWER 2
SMRT2805S
MIN
OUTPUT VOLTAGE
OUTPUT CURRENT
smrt283R3S
VIN = 19 to 56 VDC
VDC
mV
mA
mA p-p
60
—
—
66
—
—
72
—
—
%
POWER DISSIPATION
—
—
31
—
—
28
—
—
25
W
RECOVERY 1
—
—
25
—
—
25
—
—
25
ms
STEP LOAD RESPONSE 5, 6, 7
TRANSIENT
—
—
±450
—
—
±450
—
—
±450
mV pk
RECOVERY
—
—
3
—
—
3
—
—
4
ms
STEP LINE RESPONSE 1, 5, 6
19 - 50 - 19 VIN
TRANSIENT
—
—
±500
—
—
±500
—
—
±500
mV pk
RECOVERY
—
—
4
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
35
—
—
25
—
—
60
ms
OVERSHOOT
—
—
50
—
—
50
—
—
95
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
5000
—
—
5000
µF
START-UP
8
CAPACITIVE LOAD 1
TC = 25°C
Notes
1. Guaranteed by design, not tested.
2. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
3. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple current is much less, the
limit in the characteristic table is based on measurement resolution..
4. Maximum power dissipation when output is shorted.
5.Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
6. Transition time >10 µs.
7. Half load to/from full load.
8. Measured from release of inhibit or input voltage step
www.interpoint.com
Page 7 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
single output models
PARAMETER
smrt2812S
CONDITIONS
OUTPUT VOLTAGE
2
OUTPUT CURRENT
OUTPUT POWER 2
VIN = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION
10 kHz - 20 MHz
2
LOAD REGULATION
TOTAL REGULATION 1
VOUT
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 3
EFFICIENCY
LOAD FAULT 4, 5
VIN = 19, 50 VDC
smrt2815S
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
11.76
12.00
12.24
14.70
15.00
15.30
—
—
2.92
—
—
2.33
A
0
—
35
0
—
35
W
—
—
200
—
—
180
mV p-p
mV
VDC
—
5
30
—
5
30
—
5
40
—
5
40
VIN = 19, 50 VDC
—
—
90
—
—
90
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
10.9
—
13.1
14.0
—
16.0
VDC
CONTINUOUS
TRANSIENT 1 100 ms
19
28
56
19
28
56
VDC
0
—
80
0
—
80
V
INHIBITED
—
—
50
—
—
50
NO LOAD
—
—
110
—
—
110
10 kHz - 20 MHz
—
10
50
—
10
50
mV
mA
mA p-p
75
—
—
75
—
—
%
POWER DISSIPATION
—
—
20
—
—
20
W
RECOVERY 1
—
—
25
—
—
25
ms
STEP LOAD RESPONSE 5, 6, 7
TRANSIENT
—
—
±575
—
—
±575
mV pk
RECOVERY
—
—
3
—
—
3
ms
STEP LINE RESPONSE 1, 5, 6
19 - 50 - 19 VIN
TRANSIENT
—
—
±700
—
—
±700
mV pk
RECOVERY
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
25
—
—
25
ms
OVERSHOOT
—
—
120
—
—
150
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
5000
µF
START-UP
8
CAPACITIVE LOAD
TC = 25°C
1
Notes
1. Guaranteed by design, not tested.
2. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
3. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple
current is much less, the limit in the characteristic table is based on measurement resolution..
4. Maximum power dissipation when output is shorted.
5.Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
6. Transition time >10 µs.
7. Half load to/from full load.
8. Measured from release of inhibit or input voltage step
www.interpoint.com
Page 8 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
DUAL output models
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT 2, 3
OUTPUT POWER 2, 3
Vin = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION 2
LOAD REGULATION
TOTAL REGULATION 1
VOUT
INPUT VOLTAGE 4
INPUT CURRENT
INPUT RIPPLE
CURRENT 4
EFFICIENCY
LOAD FAULT 5, 6
smrt2805D
smrt2812D
smrt2815D
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
Vout A
4.90
5.00
5.10
11.76
12.00
12.24
14.70
15.00
15.30
Vout B
4.90
5.00
5.10
11.76
12.00
12.24
14.70
15.00
15.30
Vout A
—
—
3.0
—
—
1.46
—
—
1.17
Vout B
—
—
3.0
—
—
1.46
—
—
1.17
UNITS
VDC
A
Vout A
0
—
15
0
—
17.5
0
—
17.5
Vout B
0
—
15
0
—
17.5
0
—
17.5
10 kHz - 20 MHz
—
—
200
—
—
200
—
—
180
mV p-p
VIN = 19, 50 VDC
—
—
30
—
5
25
—
5
30
mV
—
5
40
—
5
50
—
5
40
VIN = 19, 50 VDC
—
—
70
—
—
100
—
—
70
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
±4.6
—
±5.4
±10.9
—
±13.1
±14.0
—
±16.0
VDC
CONTINUOUS
19
28
56
19
28
56
19
28
56
VDC
TRANSIENT 100 ms
0
—
80
0
—
80
0
—
80
V
INHIBITED
4
—
—
50
—
—
50
—
—
50
NO LOAD
—
—
110
—
—
110
—
—
110
10 kHz - 20 MHz
—
10
50
—
10
150
—
10
50
W
mV
mA
mA p-p
66
—
—
75
—
—
75
—
—
%
POWER DISSIPATION
—
—
28
—
—
20
—
—
20
W
RECOVERY 1
—
—
25
—
—
25
—
—
25
ms
STEP LOAD
RESPONSE 6, 7, 8
TRANSIENT
—
—
±450
—
—
±450
—
—
±575
mV pk
RECOVERY
—
—
3
—
—
2
—
—
3
ms
STEP LINE
RESPONSE 1, 6, 7
19 - 50 - 19 VIN
TRANSIENT
—
—
±500
—
—
±1000
—
—
±700
mv pk
RECOVERY
—
—
4
—
—
3
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
25
—
—
20
—
—
25
ms
OVERSHOOT
—
—
50
—
—
350
—
—
150
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
5000
—
—
5000
µF
START-UP 9
CAPACITIVE
TC = 25°C
LOAD1
Notes
1. Guaranteed by design, not tested.
2. The specified maximum current/power is available from each output.
3. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
4. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple current is much less, the
limit in the characteristic table is based on measurement resolution..
5. Maximum power dissipation when output is shorted.
6. Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
7. Transition time >10 µs.
8. Half load to/from full load.
9. Measured from release of inhibit or input voltage step
www.interpoint.com
Page 9 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
triple output model – SMRT283R312T
PARAMETER
OUTPUT VOLTAGE
3.3 (Main)
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
Main and Pos. Aux
3.23
3.30
3.37
11.76
12.00
12.24
Neg. Aux.
—
—
—
-11.58
-12.00
-12.42
—
—
4.5
0
±0.63
11
—
—
—
—
—
1.25
0
—
15
0
±7.5
12 1
Total
—
—
—
—
—
15
OUTPUT CURRENT 2, 3
Total
OUTPUT POWER 2, 3
VIN = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION
VIN = 19, 50 VDC
LOAD REGULATION
TOTAL REGULATION
VOUT
1
CROSS REGULATION 1, 4, 5
TC = 25°C
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 6
EFFICIENCY
STEP LOAD RESPONSE 9, 10, 11
STEP LINE RESPONSE 1, 8, 9
START-UP
10 kHz - 20 MHz
—
—
200
—
—
150
Main and POS. Aux
—
—
30
—
5
30
Neg. Aux.
—
—
—
—
10
70
11
CAPACITIVE LOAD 1
TC = 25°C
VDC
A
W
mV p-p
mV
—
5
40
—
5
40
VIN = 19, 50 VDC
—
—
100
—
—
120
Neg. Aux. 1
—
—
—
—
10
300
VIN = 19, 50 VDC 1
—
—
—
—
—
400
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
3.0
—
3.6
±10.9
—
±13.1
VDC
Effect on
Negative Auxiliary
—
—
—
—
—
2.5
%
CONTINUOUS
19
28
56
—
—
—
VDC
TRANSIENT 100 ms
0
—
80
—
—
—
V
NO LOAD
—
—
110
—
—
—
INHIBITED
—
—
50
—
—
—
10 kHz - 10 MHz
—
10
50
—
—
—
mV
mA
mA p-p
68
—
—
—
—
—
%
POWER DISSIPATION
—
—
28
—
—
—
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±450
—
—
±450
mV pk
RECOVERY
—
—
3
—
—
3
ms
22 - 35 - 22 VIN
TRANSIENT
—
—
±500
—
—
±750
mV pk
RECOVERY
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
35
—
—
25
ms
OVERSHOOT
—
0
50
—
0
120
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
1000
µF
Notes: See page 15
www.interpoint.com
UNITS
Main and Pos. Aux
7
LOAD FAULT 8, 9
±12 (Auxiliaries)
Page 10 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
triple output model – SMRT283R315T
PARAMETER
OUTPUT VOLTAGE
3.3 (Main)
±15 (Auxiliaries)
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
Main and Pos. Aux
3.23
3.30
3.37
14.70
15.00
15.30
-14.48
-15.00
-15.53
Neg. Aux.
OUTPUT CURRENT 2, 3
—
—
4.5
0
±0.5
0.8 1
—
—
—
—
—
1.0
0
—
15
0
±7.5
12 1
Total
—
—
—
—
—
15
10 kHz - 20 MHz
—
—
200
—
—
150
Main and POS. Aux
—
—
30
—
5
30
—
10
70
Total
OUTPUT POWER 2, 3
VIN = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION
VIN = 19, 50 VDC
Neg. Aux.
LOAD REGULATION
TOTAL REGULATION
VOUT
CROSS REGULATION 1, 4, 5
TC = 25°C
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 6
EFFICIENCY
STEP LOAD RESPONSE 9, 10, 11
STEP LINE RESPONSE 1, 8, 9
START-UP
11
CAPACITIVE LOAD 1
TC = 25°C
W
mV p-p
mV
5
40
—
5
40
VIN = 19, 50 VDC
—
—
100
—
—
120
—
—
—
—
—
300
—
—
—
—
—
400
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
3.0
—
3.6
±14.0
—
±16.0
VDC
Effect on
Negative Auxiliary
—
—
—
—
—
2.5
%
CONTINUOUS
19
28
56
—
—
—
VDC
TRANSIENT 100 ms
0
—
80
—
—
—
V
1
VIN = 19, 50 VDC 1
NO LOAD
—
—
110
—
—
—
INHIBITED
—
—
50
—
—
—
10 kHz - 10 MHz
—
10
50
—
—
—
mV
mA
mA p-p
68
—
—
—
—
—
%
POWER DISSIPATION
—
—
28
—
—
—
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±450
—
—
±450
mV pk
RECOVERY
—
—
3
—
—
3
ms
22 - 35 - 22 VIN
TRANSIENT
—
—
±500
—
—
±750
mV pk
RECOVERY
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
35
—
—
25
ms
OVERSHOOT
—
0
50
—
0
150
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
1000
µF
Notes: See page 15
www.interpoint.com
A
—
7
LOAD FAULT 8, 9
VDC
Main and Pos. Aux
Neg. Aux.
1
UNITS
Page 11 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
triple output model – SMRT28507T
PARAMETER
OUTPUT VOLTAGE
5 (Main)
±7 (Auxiliaries)
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
Main and Pos. Aux
4.90
5.00
5.10
6.86
7.00
7.14
-6.79
7.00
-7.21
Neg. Aux.
OUTPUT CURRENT 2, 3
—
—
3.0
0
±1.00
1.2 1
—
—
—
—
—
2.0
0
—
15
0
±7.0
11.2 1
Total
—
—
—
—
—
14
Total
OUTPUT POWER 2, 3
VIN = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION
VIN = 19, 50 VDC
LOAD REGULATION
TOTAL REGULATION
VOUT
CROSS REGULATION 1, 4, 5
TC = 25°C
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 6
EFFICIENCY
STEP LOAD RESPONSE 9, 10, 11
STEP LINE RESPONSE 1, 8, 9
START-UP
11
CAPACITIVE LOAD 1
TC = 25°C
W
—
—
230
—
—
±170
—
—
70
—
—
100
Neg. Aux.
—
—
—
—
—
150
Main and Pos. Aux
—
5
100
—
5
250
VIN = 19, 50 VDC
—
—
150
—
—
250
—
—
—
—
—
350
—
—
—
—
—
350
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
4.7
—
5.3
±6.53
—
±7.47
VDC
Effect on
Negative Auxiliary
—
—
—
—
—
2.5
%
CONTINUOUS
19
28
56
—
—
—
VDC
TRANSIENT 100 ms
0
—
80
—
—
—
V
1
VIN = 19, 50 VDC 1
NO LOAD
—
—
110
—
—
—
INHIBITED
—
—
50
—
—
—
10 kHz - 10 MHz
—
10
50
—
—
—
mV p-p
mV
mV
mA
mA p-p
71
—
—
—
—
—
%
POWER DISSIPATION
—
—
22
—
—
—
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±300
—
—
±400
mV pk
RECOVERY
—
—
2
—
—
2
ms
22 - 35 - 22 VIN
TRANSIENT
—
—
±500
—
—
±750
mV pk
RECOVERY
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
20
—
—
20
ms
OVERSHOOT
—
0
100
—
0
150
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
1000
µF
Notes: See page 15
www.interpoint.com
A
10 kHz - 20 MHz
7
LOAD FAULT 8, 9
VDC
Main and POS. Aux
Neg. Aux.
1
UNITS
Page 12 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
triple output model – SMRT28512T
PARAMETER
OUTPUT VOLTAGE
5 (Main)
±12 (Auxiliaries)
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
Main and Pos. Aux
4.90
5.00
5.10
11.76
12.00
12.24
-11.58
-12.00
-12.42
Neg. Aux.
OUTPUT CURRENT 2, 3
—
—
3.0
0
±0.63
11
—
—
—
—
—
1.25
0
—
15
0
±7.5
12 1
Total
—
—
—
—
—
15
10 kHz - 20 MHz
—
—
200
—
—
150
Main and POS. Aux
—
—
30
—
5
30
—
20
70
Total
OUTPUT POWER 2, 3
VIN = 19 to 56 VDC
OUTPUT RIPPLE
LINE REGULATION
VIN = 19, 50 VDC
Neg. Aux.
LOAD REGULATION
TOTAL REGULATION
VOUT
CROSS REGULATION 1, 4, 5
TC = 25°C
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 6
EFFICIENCY
STEP LOAD RESPONSE 9, 10, 11
STEP LINE RESPONSE 1, 8, 9
START-UP
11
CAPACITIVE LOAD 1
TC = 25°C
W
mV p-p
mV
5
40
—
5
40
VIN = 19, 50 VDC
—
—
100
—
—
120
—
—
—
—
10
300
—
—
—
—
—
400
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
4.7
—
5.3
±10.9
—
±13.1
VDC
Effect on
Negative Auxiliary
—
—
—
—
—
2.5
%
CONTINUOUS
19
28
56
—
—
—
VDC
TRANSIENT 100 ms
0
—
80
—
—
—
V
1
VIN = 19, 50 VDC 1
NO LOAD
—
—
110
—
—
—
INHIBITED
—
—
50
—
—
—
10 kHz - 10 MHz
—
10
50
—
—
—
mV
mA
mA p-p
68
—
—
—
—
—
%
POWER DISSIPATION
—
—
25
—
—
—
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±450
—
—
±450
mV pk
RECOVERY
—
—
3
—
—
3
ms
22 - 35 - 22 VIN
TRANSIENT
—
—
±500
—
—
±750
mV pk
RECOVERY
—
—
4
—
—
4
ms
DELAY
NO LOAD AND FULL
—
—
25
—
—
25
ms
OVERSHOOT
—
0
50
—
0
120
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
1000
µF
Notes: See page 15
www.interpoint.com
A
—
7
LOAD FAULT 8, 9
VDC
Main and Pos. Aux
Neg. Aux.
1
UNITS
Page 13 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C TC, 28 VDC Vin, 100% load, unless otherwise specified.
triple output model – SMRT28515T
PARAMETER
OUTPUT VOLTAGE
5 (Main)
±15 (Auxiliaries)
CONDITIONS
MIN
TYP
MAX
Main and Pos. Aux
4.92
5.00
5.08
Neg. Aux.
OUTPUT CURRENT 2, 3
LINE REGULATION
VIN = 19, 50 VDC
14.77
15.00
15.23
-14.70
-15.00
-15.30
3.0
0
±0.5
0.80 1
—
—
—
—
—
1
0
—
15
0
±7.5
11.25 1
Total
—
—
—
—
—
15
10 kHz - 20 MHz
—
—
200
—
—
200
Main and POS. Aux
—
5
25
Neg. Aux.
LOAD REGULATION
MAX
—
OUTPUT POWER 2, 3
OUTPUT RIPPLE
TYP
—
Total
VIN = 19 to 56 VDC
MIN
—
—
25
—
20
35
Main and Pos. Aux
—
5
50
—
5
50
VIN = 19, 50 VDC
—
—
100
—
—
120
Neg. Aux. 1
—
—
—
—
—
500
VIN = 19, 50 VDC 1
UNITS
VDC
A
W
mV p-p
mV
mV
—
—
—
—
—
600
TOTAL REGULATION 1
VOUT
ALL CONDITIONS OF
LINE, LOAD, AGING,
TEMP AND RADIATION
4.7
—
5.3
±14.0
—
±16.0
VDC
CROSS REGULATION 1, 4, 5
TC = 25°C
Effect on
Negative Auxiliary
—
—
—
—
—
2.5
%
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT 6
EFFICIENCY
7
LOAD FAULT
8, 9
STEP LOAD RESPONSE 9, 10, 11
STEP LINE RESPONSE
START-UP 11
CAPACITIVE LOAD
TC = 25°C
1
1, 8, 9
CONTINUOUS
19
28
56
—
—
—
VDC
TRANSIENT 100 ms
0
—
80
—
—
—
V
NO LOAD
—
—
110
—
—
—
INHIBITED
—
—
50
—
—
—
10 kHz - 10 MHz
—
10
150
—
—
—
mA p-p
70
—
—
—
—
—
%
POWER DISSIPATION
—
—
25
—
—
—
W
RECOVERY 1
—
—
35
—
—
35
ms
TRANSIENT
—
—
±250
—
—
±350
mV pk
RECOVERY
—
—
1
—
—
1
ms
22 - 35 - 22 VIN
TRANSIENT
—
—
±500
—
—
±750
mV pk
RECOVERY
—
—
1.5
—
—
1.5
ms
DELAY
NO LOAD AND FULL
—
—
25
—
—
20
ms
OVERSHOOT
—
0
200
—
0
350
mV pk
UNCONDITIONALLY
STABLE, START-UP
DELAY INCREASED
—
—
5000
—
—
1000
µF
Notes: See page 15
www.interpoint.com
mA
Page 14 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
Electrical Characteristics: -55°C to +125°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
NOTES: triple output models
1. Guaranteed by design, not tested.
2. Up to the maximum specified auxiliary output current/power is available from either auxiliary output provided the total auxiliary output current/
power does not exceed the total current/power specified .
3. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
4. To maintain the cross regulation specification, one of the auxiliaries must always provide a minimum of 20% of the total auxiliary power used.
Negative Vout cross regulation is referenced to 50%/50% balanced loads (at 100% of total rated output power - full load).
5. Cross regulation is measured under the following conditions:
Condition 1: +POUT = 20 - 80%,/- POUT = 80 - 20%
Condition 2: - POUT = 20 - 80%, /+ POUT = 80 - 20%
6. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple
current is much less, the limit in the characteristic table is based on measurement resolution.
7. Efficiency measured with all outputs at full load.
8. Maximum power dissipation when all outputs are shorted simultaneously.
9.Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
10. Transition time >10 µs.
11. Half load to/from full load.
12. Measured from release of inhibit or input voltage step.
www.interpoint.com
Page 15 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
BOTTOM VIEW CASE S
Seal hole: 0.135 ±0.005 (3.43 ±0.13)
Angled corner
indicates pin 1
6 x 0.135 (3.43) dia.
1.700 (43.18)
14
1
1.500 (38.10)
13
2
1.300 (33.02)
12
3
1.100 (27.94)
11
4
0.900 (22.86)
10
5
0.700 (17.78)
9
0.500 (12.70)
8
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device.
Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin
Materials
Header Cold Rolled Steel/Nickel
Cover Kovar/Nickel
Pins
#52 alloy/gold, ceramic seal
Case S, Rev C, 20091020
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.
Figure 4: Case S
www.interpoint.com
Page 16 of 19
SMRT28 Rev E - 20100216
2x 2.550 (64.77)
2.705 max (68.71)
2x 1.550 (39.37)
0.00
2x 0.150 (3.81)
0.00
0.220 (5.59)
0.050 (1.27)
0.00
0.400 max (10.16)
3x 0.125 (3.15)
0.262 (6.65)
12 x 0.040 ± 0.002 dia.
(1.02 ± 0.05)
12 x 0.270 max (6.86)
1.675 (42.5)
2.205 max (56.01)
3x 2.075 (52.68)
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
CLASS H AND K, MIL-PRF-38534 ELEMENT EVALUATION
COmpOnent-level test
perFOrmed
spaCe prOtOtype (O)
nOn-Qml1
Class h
Qml
Class K
Qml
M/S 2
P3
M/S 2
P3
M/S 2
P3
Element Electrical
yes
no
yes
yes
yes
yes
Element Visual
no
no
yes
yes
yes
yes
Internal Visual
no
N/A
yes
N/A
yes
N/A
Temperature Cycling
no
no
no
no
yes
yes
Constant Acceleration
no
no
no
no
yes
yes
Interim Electrical
no
N/A
no
N/A
yes
N/A
Burn-in
no
N/A
no
N/A
yes
N/A
Post Burn-in Electrical
no
N/A
no
N/A
yes
N/A
Steady State Life
no
N/A
no
N/A
yes
N/A
Voltage Conditioning Aging
N/A
no
N/A
no
N/A
yes
Visual Inspection
no
no
N/A
no
N/A
yes
Final Electrical
no
no
yes
yes
yes
yes
Wire Bond Evaluation
no
no
yes
yes
yes
yes
SEM
no
N/A
no
N/A
yes
N/A
SLAM™/C-SAM:
Input capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes
no
yes
notes:
1. non-QML products do not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAM™: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
SCreenIng table 1: element eValuatIOn
www.interpoint.com
Page 17 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
CLASS H AND K, MIL-PRF-38534 ENVIRONMENTAL SCREENING
spaCe prOtOtype (O)
nOn-Qml1
Class h
Qml
Class K
Qml
Non-destruct bond pull
Method 2023
no
yes 2
yes
Pre-cap Inspection
Method 2017, 2032
yes
yes
yes
Temperature Cycle (10 times)
Method 1010, Cond. C, -65°C to 150°C, ambient
yes
yes
yes
Constant Acceleration
Method 2001, 3000 g
yes
yes
yes
PIND Test
Method 2020, Cond. A
no
yes 2
yes
Pre burn-in test
yes
yes
yes
Burn-in
Method 1015, 125°C case, typical
96 hours
160 hours
2 x 160 hours (includes mid-BI test)
yes
no
no
no
yes
no
no
no
yes
Final Electrical Test MIL-PRF-38534
Group A, Subgroups 1 through 6
-55°C, +25°C, +125°C case
yes
yes
yes
Radiography
Method 2012
N/A
N/A
yes
Post Radiography Electrical Test
Room temperature
N/A
N/A
yes 2
Hermeticity Test
Fine Leak, Method 1014, Cond. A
Gross Leak, Method 1014, Cond. C
yes
yes
yes
yes
yes
yes
Final visual inspection
Method 2009
yes
yes
yes
end item-level test
perFOrmed
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
notes:
1. Space Prototype (O), non-QML products, do not meet all of the requirements of MIL-PRF-38534.
2. not required by DSCC but performed to assure product quality.
SCreenIng table 2: enVIrOnmental SCreenIng
www.interpoint.com
Page 18 of 19
SMRT28 Rev E - 20100216
Crane Aerospace & Electronics Power Solutions
SMRT28 Single, Dual and Triple Space DC/DC Converters
28 Volt input – 35 Watt – Space qualified
CLASS H AND K, MIL-PRF-38534
RADIATION HARDNESS ASSURANCE (RHA)
ENVIRONMENTAL SCREENING LEVELS
rAdIAtIon hArdneSS
ASSurAnce leVelS 1
SPACE
PROTOTYPE (O)
NON-QML2
CLASS H
CLASS K
QML
QML
OO
N/A
N/A
p Radiation tolerant–
Tested lots up to 30 kRads (Si) total dose.
SEE 4 guarantee up to 80 MeV-cm2/mg
N/A
HP
KP
r Radiation tolerant–
Tested lots up to 100 kRads (Si) total dose.
SEE 4 guarantee up to 80 MeV-cm2/mg
N/A
HR
KR
F Radiation tolerant–
Tested lots up to 300 kRads (Si) total dose.
SEE 4 guarantee up to 80 MeV-cm2/mg
N/A
N/A
KF
O
3
Standard, no radiation guarantee
notes:
1. Redmond site, Interpoint, has a DSCC approved Radiation Hardness Assurance plan. Our SMD products with RHA “P”, “R,” or “F” code
meet DSCC requirements.
2. Space Prototype (O), non-QML, products do not meet all of the requirements of MIL-PRF-38534.
3. Interpoint model numbers use an “O” in the RHA designator position to indicate the “-” (dash) Radiation Hardness Assurance level of
MIL-PRF-38534, which is defined as “no RHA”
4. no upset at the pins.
SCreenIng table 3: raDIatIOn harDneSS aSSuranCe
SMRT28 Single, Dual and Triple SMRT28 Rev E - 20100216. This revision supersedes 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. SMRT Series is a trademark of Interpoint. Copyright © 1999 - 2010 Interpoint Corporation. All rights reserved. www.interpoint.com
Page 19 of 19