Data Sheet - Interpoint

Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Features
Radiation tolerant space dc-dc converter
• Single event effects (SEE) LET performance to
86 MeV cm2/mg
• Total ionizing dose (TID) guaranteed to 100 krad(Si)
RHA level R, per MIL-STD-883 method 1019
MODELS
• Operating temperature -55°C to +125°C
Output Voltage (V)
• Qualified to MIL-PRF-38534 Class H and K
Single
Dual
• Transient protection 50 V for 50 ms
3.3
±5
5
±12
• Fixed high frequency switching
5.2
±15
• Indefinite short circuit protection
15
• Input voltage range 16 to 40 V
• Fully isolated
• Inhibit function
12
• High power density, 74% efficiency
description
The Interpoint® SMSA Series™ of high frequency, space
qualified, dc-dc converters provide up to 5 watts output power
over the full military temperature range of -55°C to +125°C
with up to 74% efficiency. Thick-film hybrid techniques provide
military/aerospace reliability levels and optimum miniaturization.
The hermetically sealed case is 1.075 by 1.075 inches with
a height of 0.270 inches. Power density for the SMSA Series
converters is 16 watts per cubic inch. The SMSA Series’ small
size, light weight and hermetically sealed metal packages make
them ideal for use in space, military, aerospace and other high
reliability applications.
Screening
SMSA 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” or “R”, per
MIL-STD-38534. Interpoint model numbers use an “O” in the
RHA designator position to indicate the “-” (dash) RHA level of
MIL-PRF-38534, which is defined as “no RHA”. See Table 10 on
page 15 for more information.
Converter Design
The SMSA converters are switching regulators that use a flyback
converter design with a constant switching frequency of 500 kHz.
They are regulated, isolated units using a pulse width modulated
topology. Isolation between input and output circuits is provided
with a transformer in the forward power loop and an optical link in
the feedback control loop. Excellent input line transient response
and audio rejection is achieved by an advanced feed-forward
compensation technique.
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Rd. NE, Redmond, WA 98052
+1.425.882.3100 • power@crane-eg.com
www.craneae.com/interpoint
On dual output models negative output regulation is maintained
by tightly coupled magnetics.
Predictable current limit is accomplished by direct monitoring
of the output load current, which results in a constant current
output above the overload point. Internal input and output filters
eliminate the need for external capacitors.
Wide Voltage Range
The SMSA converters are designed to provide full power
operation over the full 16 to 40 volt range. An undervoltage
lockout feature keeps the converter shutdown below
approximately 13 volts to ensure smooth initialization.
Dynamic Response
The SMSA feed-forward compensation system p
­ rovides excellent
dynamic response and noise rejection. Audio rejection is typically
50 dB (“Figure 15” on page 11).
Inhibit Function
SMSA converters provide an inhibit feature that can be used to
disable internal switching and inhibit the unit’s output. Inhibiting in
this manner results in low standby current, and no generation of
switching noise.
The converter is inhibited when an active low (≤0.8 V) is applied
to the inhibit pin. The unit is enabled when the pin, which is
internally connected to a pull-up resistor, is left unconnected or
is connected to an open collector gate. The open circuit output
voltage associated with the inhibit pin is 9 to 11 volts. In the
inhibit mode, a maximum of 4 mA must be sunk from the inhibit
pin at 28 volt input.
Page 1 of 15
SMSA Rev AD - 2014.08.26
The information in this document has been cleared by the Department of
Defense (DoD) Office of Security Review (OSR) for public release. OSR case
number 13-S-2440 dated July 30, 2013 and 12-S-2048 dated May 29, 2012.
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
SMSA SINGLE AND DUAL
Positive 6
Input
Input Filter
1 Positive
Output
Output Filter
Error
Amp
Inhibit 5
VRef
PWM
Control
Input 7
Common
Output Filter
Feedback
Case 8
Ground
= DUAL OUTPUT
Figure 1: SMSA Block Diagram
SMSA
Positive
6
Input
12 K
5K
Inhibit
5
400 Ω
50 K
200 pF
10 K
3.9 K
2N3904
10 K
7
Input
Common
Figure 2: Inhibit Interface
www.craneae.com/interpoint
Page 2 of 15
SMSA Rev AD - 2014.08.26
Vcc
Typically 1.5 V
when inhibited
2
Output
Common
3
Negative
Output
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
EMI Filter
From input
power source
Positive
Input
Input
Common
T1
Positive
Output
Positive
Positive
Input
Output
Case
Output Common
Input
Output
Common
Common
+
C2
Case
C3 To Load
T1
C1
Figure 3: Low Noise Output Filter for SMSA Single Output Model
EMI Filter
From input
power source
Positive
Input
Positive
Output
Input
Output
Common Common
T2
Positive
Positive
Input
Output
Case
Output Common
Input
Common
C2+
C4+
Negative
Output
Case
C1
C3
C5
To Loads
T2
Figure 4: Low Noise Output Filter for SMSA Dual Output Model
The filter suggestions in Figure 3 and Figure 4 will further reduce the output ripple for systems requiring very low output noise.
C1 = 0.27 µF ceramic capacitor, 500 V
C2 = C4 = 6.8 µF tantalum capacitor
C3 = C5 = 0.27 µF ceramic capacitor
Single output: T1 = 15T #28 AWG winding on toroid, µi = 5000
Dual output: T2 = 10T #28 AWG winding on toroid, µi = 5000
For best results, make interconnections as short as possible.
www.craneae.com/interpoint
Page 3 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Pin Out
Pin
Single Output
Dual Output
1
Positive Output
Positive Output
2
Output Common
Output Common
3
No connection
Negative Output
4
No connection
No connection
5
Inhibit
Inhibit
6
Positive Input
Positive Input
7
Input Common
Input Common
8
Case Ground
Case Ground
Table 1: Pin Out
Squared corner on header and dot
on top of cover indicate pin one.
1
2
3
4
5
BOTTOM VIEW
SMSA
8
7
6
See Figure 26 on page 13 for dimensions.
Figure 5: Pin Out Bottom View
Inhibit
Pins not in Use
Leave unconnected
“No Connection” pins
No electrical connection
Table 2: Pins Not in Use
www.craneae.com/interpoint
Page 4 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
model numbering key
Base Model
SMSA
SMD Numbers
28 05 S / K R
Voltage In (28V)
Output Voltage
Number of Outputs
(S = single, D = dual)
Environmental Screening
Radiation Hardness
Assurance (RHA)
Standard Microcircuit
Drawing (SMD)
SMSA Similar Part
5962R0621001KXC
SMSA283R3/KR
5962R9309202KXC
SMSA2805S/KR
5962R9309302KXC
SMSA2812S/KR
5962R9309402KXC
SMSA2815S/KR
5962R0052202KXC
SMSA2805d/KR
5962R9308902KXC
SMSA2812D/KR
5962R9309002KXC
SMSA2815D/KR
The SMD number shown is for Class K screening
and radiation hardness assurance (RHA) level R.
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.landandmaritime.dla.mil/programs/smcr
Figure 6: Model Numbering Key
Table 3: SMD Number Cross Reference
On
Model Number Options
the lines below, enter one selection from each category to determine the model number.
Category
Base Model and
Input Voltage
Options
SMSA28
Fill in for Model #
_____
SMSA28
Output Voltage 1
Number of
Outputs 2
Screening 3
RHA 4
3R3, 05, 5R2, 12, 15
S
O
O
05, 12, 15
D
H
P
K
R
__________
/
_______
Notes
1. An R indicates a decimal point. 3R3 is 3.3 volts out. The values of 3.3 and 5.2 are only available in single output models.
2. Number of Outputs: S is a single output and D is a dual output.
3. Screening: A screening level of O is a space prototype and is only used with RHA O. See Table 9 on page 14 and Table 10 on page 15 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 Table 10 on page 15 for more information.
Table 4: Model Number Options
www.craneae.com/interpoint
Page 5 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table 5: Operating Conditions - All Models, 25°C case, 28 Vin, unless otherwise specified
SMSA Series
All Models
PARAMETER
CONDITIONS
LEAD SOLDERING TEMPERATURE
1
10 seconds max.
STORAGE TEMPERATURE
MIN
TYP
MAX
UNITS
—
-65
—
300
°C
—
+150
°C
CASE OPERATING
FULL POWER
-55
—
+125
TEMPERATURE
ABSOLUTE 1
-55
—
+135
DERATING OUTPUT POWER/CURRENT 1
ESD RATING
1
LINEARLY
ISOLATION: input to output or any
pin to case except case pin
Lockout 1
2000 - 3999
Class 2
@ 500 VDC at 25°C
INPUT TO OUTPUT CAPACITANCE 1
Under Voltage
From 100% at 125°C to 0% at 135°C
MIL-STD-883 Method 3015
MIL-PRF-38534, 3.9.5.8.2
V
100
—
—
Megohms
—
50
—
pF
—
13
—
V
% of Full Load
—
166
—
%
—
50
—
dB
CONVERSION FREQUENCY
-55°C TO +125°C
400
500
600
kHz
INHIBIT ACTIVE LOW (OUTPUT DISABLED)
inhibit pin pulled low 1
—
—
0.8
V
INHIBIT PIN SOURCE
CURRENT 1
—
—
4
mA
Current Limit
VIN
°C
AUDIO REJECTION 1
Do not apply a voltage to the inhibit pin
REFERENCED TO
INPUT COMMON
INHIBIT ACTIVE HIGH (OUTPUT ENABLED)
INHIBIT PIN CONDITION
Do not apply a voltage to the inhibit pin
OPEN INHIBIT PIN VOLTAGE 1
OPEN COLLECTOR OR
UNCONNECTED
9
—
For mean time between failures (MTBF) contact Applications Engineering
powerapps@crane-eg.com +1.425.882.3100 option 7
Notes
1. Guaranteed by qualification test and/or analysis. Not an in-line test.
www.craneae.com/interpoint
Page 6 of 15
SMSA Rev AD - 2014.08.26
11
V
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table 6: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, unless otherwise specified.
single output models
PARAMETER
SMSA283R3S
CONDITIONS
OUTPUT VOLTAGE
SMSA2805S
SMSA285R2S
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
3.15
3.30
3.45
4.80
5.00
5.20
4.99
5.20
5.39
V
Vin = 16 to 40 V
0
—
1200
0
—
1000
0
—
962
mA
Vin = 16 to 40 V
—
—
4.0
—
—
5.0
—
—
5.0
W
—
300
600
—
150
450
—
150
450
TC = -55°C TO +125°C
—
—
900
—
—
675
—
—
675
—
10
50
—
10
50
—
10
50
mV
LOAD REGULATION
Vin = 16 TO 40 V
NO LOAD TO FULL
—
10
50
—
10
50
—
10
50
mV
INPUT VOLTAGE
CONTINUOUS
16
28
40
16
28
40
16
28
40
NO LOAD TO FULL
TRANSIENT 1 50 ms
0
—
50
0
—
50
0
—
50
INPUT CURRENT 2
NO LOAD
—
35
50
—
35
50
—
35
60
INHIBITED
—
3
5
—
3
5
—
3
5
OUTPUT CURRENT
OUTPUT POWER
TC = 25°C
OUTPUT RIPPLE
10 kHz - 2 MHz
LINE REGULATION
mV p-p
V
mA
INPUT RIPPLE CURRENT 3
10 kHz - 10 MHz
—
60
100
—
60
300
—
60
300
EFFICIENCY
TC = 25°C
60
—
—
64
74
—
64
74
—
60
—
—
62
—
—
62
—
—
LOAD FAULT 1, 4
TC = -55°C TO +125°C
POWER DISSIPATION
—
1.5
2.5
—
1.5
2.2
—
1.5
2.2
W
SHORT CIRCUIT
RECOVERY
—
12.5
75
—
12.5
75
—
12.5
75
ms
STEP LOAD RESPONSE 5
TRANSIENT
—
200
500
—
200
1500
—
200
1500
mV pk
50% - 100% - 50%
RECOVERY 1
—
200
500
—
200
4500
—
200
4500
µs
TRANSIENT
—
200
500
—
200
500
—
200
500
mV pk
16 - 40 - 16 V
RECOVERY
—
400
500
—
400
1000
—
400
1000
µs
START-UP
DELAY
—
10
30
—
10
30
—
10
30
ms
OVERSHOOT 1
—
0
200
—
0
200
—
0
200
mV pk
No Effect on DC
Performance
—
—
500
—
—
300
—
—
300
µF
STEP LINE RESPONSE
1, 5
Capacitive Load 1
TC = 25°C
Notes
1. Guaranteed by qualification test and/or analysis. Not an in-line test.
2. The inhibited input current is tested with 0 V on the inhibit.
3. Tested with a 2 µH external input inductor.
www.craneae.com/interpoint
mA p-p
%
4. Indefinite short circuit protection not guaranteed above 125°C (case).
5.Recovery time is measured from application of the transient to point at which
VOUT is within 1% of VOUT at final value.
Page 7 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table 7: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, unless otherwise specified.
single output models
PARAMETER
SMSA2812S
CONDITIONS
SMSA2815S
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
11.64
12.00
12.36
14.40
15.00
15.60
V
Vin = 16 to 40 V
—
—
417
—
—
333
mA
—
—
5.0
—
—
5.0
W
TC = 25°C
—
125
200
—
150
600
—
—
300
—
—
900
—
10
50
—
10
50
mV
LOAD REGULATION
Vin = 16 TO 40 V
NO LOAD TO FULL
—
10
50
—
10
50
mV
INPUT VOLTAGE
CONTINUOUS
16
28
40
16
28
40
NO LOAD TO FULL
TRANSIENT 1 50 ms
0
—
50
0
—
50
INPUT CURRENT 2
NO LOAD
—
35
42
—
35
50
INHIBITED
—
3
5
—
3
5
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
Vin = 16 to 40 V
OUTPUT RIPPLE
10 kHz - 2 MHz
TC = -55°C TO +125°C
LINE REGULATION
mV p-p
V
mA
INPUT RIPPLE CURRENT 3
10 kHz - 10 MHz
—
60
100
—
60
300
EFFICIENCY
TC = 25°C
68
74
—
69
74
—
TC = -55°C TO +125°C
64
—
—
65
—
—
POWER DISSIPATION
—
1.2
2.1
—
1.2
2.0
W
RECOVERY
—
1
10
—
1
10
ms
TRANSIENT
—
300
400
—
400
3000
mV pk
RECOVERY 1
—
400
500
—
400
4500
µs
LOAD FAULT 1, 4
SHORT CIRCUIT
STEP LOAD RESPONSE
5
50% - 100% - 50%
STEP LINE RESPONSE
1, 5
mA p-p
%
TRANSIENT
-1000
250
800
-500
250
500
mV pk
16 - 40 - 16 V
RECOVERY
—
700
800
—
500
1300
µs
START-UP
DELAY
—
10
30
—
10
30
ms
—
0
500
—
0
500
mV pk
—
—
500
—
—
500
µF
OVERSHOOT
Capacitive Load 1
TC = 25°C
1
No Effect on DC
Performance
Notes
1. Guaranteed by qualification test and/or analysis. Not an in-line test.
2. The inhibited input current is tested with 0 V on the inhibit.
3. Tested with a 2 µH external input inductor.
www.craneae.com/interpoint
4. Indefinite short circuit protection not guaranteed above 125°C (case).
5.Recovery time is measured from application of the transient to point
at which VOUT is within 1% of VOUT at final value.
Page 8 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table 8: Electrical Characteristics: -55°C to +125°C case, 28 Vin, 100% load, unless otherwise specified.
Dual output models
SMSA2805D
SMSA2812D
SMSA2815D
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
OUTPUT VOLTAGE
+VOUT
4.80
5.00
5.20
11.52
12.00
12.48
14.40
15.00
15.60
4.75
5.00
5.25
11.04
12.00
12.96
13.80
15.00
16.20
—
±500
800 1
—
±208
333 1
—
±167
267 1
OUTPUT CURRENT 2
VIN = 16 to 40 V
-VOUT
Either Output
TOTAL
OUTPUT POWER 2
Either Output
VIN = 16 to 40 V
TOTAL
OUTPUT RIPPLE
—
±2.5
4.0 1
417
—
±2.5
5.0
4.0 1
333
—
±2.5
5.0
4.0 1
5.0
V
mA
W
—
—
300
—
80
300
—
120
300
TC = -55°C TO +125°C
—
—
300
—
—
500
—
—
500
+VOUT
—
20
100
—
20
100
—
10
50
-VOUT
—
40
200
—
40
200
—
40
180
+VOUT
—
10
50
—
10
50
—
10
50
-VOUT
—
100
200
—
100
200
—
50
200
—
—
750
—
—
1000
—
—
1000
INPUT VOLTAGE
CONTINUOUS
16
28
40
16
28
40
16
28
40
NO LOAD TO FULL
TRANSIENT 1 50 ms
0
—
50
0
—
50
0
—
50
INPUT CURRENT 4
NO LOAD
—
30
50
—
40
63
—
38
60
INHIBITED
—
3
5
—
3
5
—
3
5
INPUT RIPPLE CURRENT 5
10 kHz - 10 MHz
—
60
300
—
60
300
—
60
300
EFFICIENCY
TC = 25°C
65
70
—
67
73
—
68
73
—
TC = -55°C TO +125°C
63
—
—
65
—
—
66
—
—
POWER DISSIPATION
—
1.3
2.1
—
1.3
1.9
—
1.3
1.8
SHORT CIRCUIT
RECOVERY
—
—
50
–
1
30
—
1
50
ms
STEP LOAD RESPONSE 7
TRANSIENT
—
±200
±1400
—
±200
±1400
—
±200
±1400
mV pk
50% - 100% - 50%
RECOVERY 1
—
200
4500
—
200
4500
—
200
4500
µs
STEP LINE RESPONSE 1, 7
TRANSIENT
—
±200
±750
—
±200
±500
—
±600
±1500
mV pk
16 - 40 - 16 V
RECOVERY
—
500
1200
—
500
2000
—
500
1200
µs
START-UP
DELAY
—
10
25
—
10
30
—
10
25
ms
OVERSHOOT 1
—
0
750
—
0
500
—
0
750
mV pk
No Effect on DC
Performance
—
—
10
—
—
100
—
—
10
µF
10 kHz - 2 MHz
LINE REGULATION
VIN = 16 TO 40 V
LOAD REGULATION
NO LOAD TO FULL
CROSS REGULATION 3
LOAD FAULT 1, 6
Capacitive Load 1, 8
TC = 25°C
TC = 25°C
1000
UNITS
Notes
1. Guaranteed by qualification test and/or analysis. Not an in-line test.
2.Up to 4 watts (80% of full power) is available from either output providing the
opposite output is carrying 20% of total power.
3.Shows regulation effect on the minus output during the defined cross loading
conditions: +PO = 30-70%, -PO = 70-30% and -PO = 30-70%, +PO = 70-30%
See “Figure 24” on page 12 and “Figure 25” on page 12.
www.craneae.com/interpoint
mV p-p
mV
mV
mV
V
mA
mA p-p
%
W
4. The inhibited input current is tested with 0 V on the inhibit.
5. Tested with a 2 µH external input inductor.
6.Indefinite short circuit p
­ rotection not guaranteed above 125°C (case).
7.Recovery time is measured from application of the transient to point at which
VOUT is within 1% of VOUT at final value.
8. Applies to each output.
Page 9 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Typical Performance Curves: 25°C case, 28 Vin, 100% load, unless otherwise specified.
80
80
16V
28V
40V
50
60
70
EFFICIENCY (%)
60
EFFICIENCY (%)
EFFICIENCY (%)
16V
70
70
28 V
40V
50
40
40
30
1
2
3
4
5
OUTPUT POWER (Watts)
30
6
28V
40V
50
1
2
3
4
5
30
6
1
2
50mV/div.
50% to 100%
10% to 100%
100 µs/div
50% 100%
100 µs/div
10% 100%
SMSA2805S STEP LOAD RESPONSE
Figure 10
SMSA2805S STEP LOAD RESPONSE
Figure 12
Figure 11
VIN
INPUT VOLTAGE (Volts)
1V/div.
20V/div.
17
VOUT
1 ms / div
SMSA2805S TURN-ON INTO NO LOAD
2805S
16
15
2812S
14
13
12
2815S
1
2
3
4
5
OUTPUT POWER (Watts)
50 mV DROP
6
SMSA LOW LINE DROPOUT VS. LOAD
Figure 13
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6
100% to 10%
50mV/div.
VOUT
SMSA2805S STEP LINE RESPONSE
5
Figure 9
100% to 50%
100 µs/div
16V TO 40V
4
SMSA2815S EFFICIENCY
Figure 8
VIN
3
OUTPUT POWER (Watts)
SMSA2812S EFFICIENCY
Figure 7
20mV/div.
60
40
OUTPUT POWER (Watts)
SMSA2805S EFFICIENCY
20V/div.
80
16V
Figure 14
Page 10 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Typical Performance Curves: 25°C case, 28 Vin, 100% load, unless otherwise specified.
80
80
16V
20
70
40
50
60
70
80
28V
40V
50
40
90
1
10
FREQUENCY (kHz)
100
30
SMSA SERIES AUDIO REJECTION
1
2
3
4
5
OUTPUT POWER (Watts)
30
6
1
20V/div.
16V
70
100mV/div.
40V
40
1
2
3
4
5
OUTPUT POWER (Watts)
6
SMSA2815D EFFICIENCY
50% to 10%
VIN
+VOUT
–VOUT
SMSA2815D +VO STEP LOAD RESPONSE
SMSA2815D INPUT STEP LINE RESPONSE
–POUT=0.5W
Figure 20
200mV/div.
VIN
5V/div.
+VOUT
–VOUT
10% to 90%
200 µs/div
10%
90%
500 µs/div
SMSA2815D TURN-ON INTO NO LOAD
SMSA2815D +VO STEP LOAD RESPONSE
Figure 22
Figure 21
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6
–POUT=2.5W
100 µs/div
10%
50%)
Figure 19
90% to 10%
5
10% to 50%
200 µs/div
16V TO 40V
Figure 18
4
Figure 17
20V/div.
30
3
SMSA2812D EFFICIENCY
60
50
2
OUTPUT POWER (Watts)
Figure 16
80
28V
40V
50
40
SMSA2805D EFFICIENCY
Figure 15
28V
60
100mV/div.
100
0.1
EFFICIENCY (%)
60
16V
70
EFFICIENCY (%)
30
EFFICIENCY (%)
ATTENUATION (dB)
10
Page 11 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Typical Performance Curves: 25°C case, 28 Vin, 100% load, unless otherwise specified.
2815D
16
15
14
13
12
2812D
1
2
3
4
5
OUTPUT POWER (Watts)
50 mV DROP
6
SMSA LOW LINE DROPOUT VS. LOAD
Figure 23
www.craneae.com/interpoint
10
5
8
4
–VOUT VOLTAGE CHANGE (%)
–VOUT VOLTAGE CHANGE (%)
INPUT VOLTAGE (Volts)
17
6
4
2812D
2
0
2815D
–2
2
COND A
1
0
2815D
–1
COND B
–2
–4
–3
–6
2812D
–4
–8
–10
2812D
3
90/10
70/30
50/50
30/70
10/90
OUTPUT LOAD (+VOUT % / –VOUT %)
90–10% LOAD on +V, 10-90% LOAD on –V
SMSA DUAL CROSS REGULATION
Figure 24
Page 12 of 15
SMSA Rev AD - 2014.08.26
–5
10
20
30
40
50
OUTPUT LOAD (%)
COND. A: 50% LOAD +V; 10% to 50% –V
COND. B: 50% LOAD –V; 10% to 50% +V
SMSA DUAL CROSS REGULATION
Figure 25
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
BOTTOM VIEW CASE C1
Projection Weld
Squared corner and dot on
top of case indicate pin one.
1.075 max. (27.31)
0.932 (23.67)
1
2
3
4
5
0.025
(0.64)
dia.
8
0.132 (3.35)
7
6
0.932 (23.67)
1.075 max. (27.31)
0.732 (18.59)
0.332 (8.43)
0.532 (13.51)
0.000
0.132 (3.35)
0.000
0.205 ±0.010
(5.21 ±0.25)
0.270 max.
(6.86)
0.000
Weight: 15 grams maximum
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/Gold
Cover Cold Rolled Steel/Nickel
Pins
#52 alloy, gold, compression glass seal
Gold plating of 50 - 150 microinches
included in pin diameter
Seal hole: 0.070 ±0.003 (1.78 ±0.08)
Case C1 SMSA, Rev F, 2013.05.30
Please refer to the numerical dimensions for accuracy.
Figure 26: Case C1
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Page 13 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table is for reference only. See individual Series' datasheets for specific screening.
dc-dc conVerterS PrototyPe, claSS h and claSS K,
Mil-Prf-38534 eleMent eValuation
non-QMl 1
QMl
PrototyPe
/o
coMPonent-leVel teSt PerforMed
Element Electrical
M/S
2
claSS h
M/S
n
2
/h
P
claSS K
3
M/S
2
/K
P3
n
n
n
n
Visual
n
n
n
n
Internal Visual
n
n
Temperature Cycling
n
n
Constant Acceleration
n
n
Interim Electrical
n
Burn-in
n
Post Burn-in Electrical
n
Steady State Life
n
Voltage Conditioning Aging
n
Visual Inspection
n
Final Electrical
n
n
n
n
Wire Bond Evaluation
n
n
n
n
SEM
n
notes
1. non-QML products may not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (microcircuit and semiconductor die)
3. P = Passive components, Class H and K element evaluation. not applicable to space prototype (“O”) element evaluation.
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
table 1: element evaluation–Dc-Dc converterS prototype, claSS h anD claSS k
Table 9: Element Evaluation
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Page 14 of 15
SMSA Rev AD - 2014.08.26
Crane Aerospace & Electronics Power Solutions
SMSA Single and Dual DC-DC Converters
28 Volt input – 5 Watt
Table is for reference only. See individual Series' datasheets for specific screening.
dc-dc conVerterS PrototyPe, claSS h and claSS K
Mil-Prf-38534 enVironMental Screening and rha1 P or r
non-QMl 2
PrototyPe
teSt PerforMed
/oo
claSS h
claSS K
/hP
/hr
/KP
/Kr
n4
n4
n
n
n
n
n
n
n
n
n
n
n
n
n
n
non-destruct wire bond pull, Method 2023
pre-cap inspection, Method 2017, 2032
QMl 3
temperature cycle (10 times) (Qual 100 times)
Method 1010, Cond. C, -65°C to +150°C, ambient
constant acceleration
Method 2001, 3000 g (Qual 5000 g)
pind, test Method 2020, cond. a
n
n
4
n
n
n4
n4
n
n
n
n
n
n
n
pre burn-in test, group a, subgroups 1 and 4
burn-in Method 1015, +125°c case, typical
n
n
4
n
5
96 hours
n
160 hours
2 x 160 hours (includes mid-BI test)
Final electrical test, MiL-prF-38534, group a,
Subgroups 1 and 4: +25°C case
n
Subgroups 1 through 6, -55°C, +25°C, +125°C case
n
n
n
n
Hermeticity test
gross Leak, Method 1014, Cond. C
n
n
n
n
n
Fine Leak, Method 1014, Cond. A
n
n
n
n
n
radiography, Method 2012
n
post radiography electrical test, +25°c case
n
Final visual inspection, Method 2009
n
rHa p: 30 krad(si) total dose
n
n
rHa r: 100 krad(si) total dose
single event effect (see)
n
n
n4
n
n
n
1
linear energy Transfer (leT) 86 MeV
n
n
4
n
n
n
n
cm2/mg
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
notes
1. Our Redmond facility has a DLA approved RHA plan for Interpoint power
products. Our SMD products with RHA “P” or “R” code meet DLA requirements.
2. “OO” prototypes are non-QML products and may not meet all of the requirements
of MIL-PRF-38534. “O” in the RHA designator position in Interpoint model
numbers indicates DLA RHA “-” defined as no RHA.
3. All processes are QML qualified and performed by certified operators.
4. not required by DLA but performed to assure product quality.
5. Burn-in temperature designed to bring the case temperature to +125°C minimum.
Burn-in is a powered test.
table 2: environmental Screening anD rha–Dc-Dc converterS prototype, claSS h anD claSS k, rha p or r
Table 10: Environmental Screening and RHA Levels
SMSA Single and Dual, SMSA Rev AD - 2014.08.26. This revision supersedes all previous releases. All technical information is believed to
be accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc reserves the right to make changes in products
or specifications without notice. Interpoint is a registered trademark of Crane Co. SMSA Series is a trademark of Crane Electronics, Inc.
Copyright © 1999 - 2014 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint
Page 15 of 15