SMSA2812D/HO [CRANE]
Analog Circuit, Hybrid, MDIP10,;
| 型号： | SMSA2812D/HO |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | Analog Circuit, Hybrid, MDIP10, |
| 文件： | 总12页 (文件大小：162K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
SMSA SERIES
5 WATT
DC/DC CONVERTERS
28 VOLT NPUT
• Fully qualified to Class H or K
• Radiation hardened
• –55° to +125°C operation
• 16 to 40 VDC input
I
• Fully isolated
• Optocoupler feedback
• Fixed frequency, 550 kHz typical
• Topology – Single Ended Flyback
• Inhibit function
• Indefinite short circuit protection
• 5 watts output power
• Up to 76% efficiency
MODELS
VDC OUTPUT
SINGLE
DUAL
12
5
12
15
15
Size (max.): 1.075 x 1.075 x 0.270 inches
(27.31 x 27.31 x 6.86 mm)
See Figures 23 and 24 for dimensions.
15 grams maximum.
Weight:
Screening: Standard, Class H, or Class K (MIL-PRF-38534)
Radiation hardness levels O, L, and R
DESCRIPTION
The SMSA Series™ of high frequency DC/DC converters offers a
new standard of performance for low power, space qualified DC/DC
converters. SMSA converters provide up to 5 watts output power
over the full military temperature range of –55°C to +125°C with up
to 76% efficiency. Thick-film hybrid techniques provide military/aero-
space reliability levels and optimum miniaturization. The hermeti-
cally sealed case is only 1.075 by 1.075 inches — with a height of
only 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.
WIDE VOLTAGE RANGE
The SMSA converters are designed to provide full power operation
over the full 16 to 40 VDC voltage range. An undervoltage lockout
feature keeps the converter shutdown below approximately 13 VDC
to ensure smooth initialization.
IMPROVED DYNAMIC RESPONSE
The SMSA feed-forward compensation system provides excellent
dynamic response and noise rejection. Audio rejection is typically 50
dB. The minimum to maximjm step line transient response is typi-
cally less than 1%.
SCREENING AND REPORTS
INHIBIT FUNCTION
SMSA converters offer three screening options – Standard, Class
H, or Class K – and three levels of radiation hardness. See Tables
1 through 3 for more information. Detailed reports on product
performance are also available and are listed in Table 4.
SMSA converters provide a TTL open collector-compatible 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.
CONVERTER DESIGN
The converter is inhibited when the TTL compatible low (≤0.8V) 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 VDC. In the inhibit mode, a
maximum of 4 mA must be sunk from the inhibit pin at 28 VDC input.
The SMSA converters are switching regulators that use a flyback
converter design with a constant switching frequency of 550 kHz.
They are regulated, isolated units using a pulse width modulated
topology and built as high reliability thick-film hybrids. 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.
Negative output regulation is maintained by tightly coupled
magnetics. Predictable current limit is accomplished by direct moni-
toring 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.
1
SMSA SERIES
5 WATT
DC/DC CONVERTERS
ABSOLUTE MAXIMUM RATINGS
INHIBIT
TYPICAL CHARACTERISTICS
Input Voltage
• 16 to 40 V
Output Power
• 5 watts
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +135°C
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low voltage ≤0.8 V max
Inhibit pin current 4 mA max
• Referenced to input common
• Logic high (output enabled)
Open collector
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 50 pF typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 50 dB typical
Conversion Frequency
• 550 kHz typical
450 kHz min, 600 kHz max
Inhibit Pin Voltage (unit enabled)
• 9 to 11 V
RECOMMENDED OPERATING CONDITIONS
Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for up to 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derating Output Power/Current (Tc)
• Linearly from 100% at 125°C to 0% at 135°C
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
SMSA2805S
MIN TYP MAX
4.95 5.00 5.05
SMSA2812S
MIN TYP MAX
11.88 12.00 12.12
SMSA2815S
MIN TYP MAX
14.85 15.00 15.15
CONDITIONS
Tc = –55°C TO +125°C
UNITS
VDC
OUTPUT VOLTAGE
OUTPUT CURRENT
Tc = –55°C TO +125°C
V
V
= 16 TO 40 VDC
= 16 TO 40 VDC
0
—
—
1000
5
0
—
—
417
5
0
—
—
333
5
mA
W
IN
OUTPUT POWER
IN
Tc = –55°C TO +125°C
—
—
—
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
10 kHz - 2 MHz
= 16 TO 40 VDC
IN
Tc = –55°C TO +125°C
NO LOAD TO FULL
Tc = –55°C TO +125°C
Tc = –55°C TO +125°C
CONTINUOUS
TRANSIENT 50 ms
NO LOAD
FULL LOAD
INHIBITED
10 kHz - 10 MHz
Tc = –55°C TO +125°C
—
—
—
150 450
—
—
—
125 500
—
—
—
150 600
mV p-p
mV
V
10
10
50
50
10
10
50
50
10
10
50
50
LOAD REGULATION
mV
INPUT VOLTAGE
NO LOAD TO FULL
16
0
28
—
35
250
3
40
50
60
—
16
0
28
—
35
235
3
40
50
60
—
16
0
28
—
35
235
3
40
50
60
—
VDC
V
INPUT CURRENT
Tc = –55°C TO +125°C
—
—
—
—
—
64
—
—
—
—
—
68
—
—
—
—
—
69
mA
5
5
5
INPUT RIPPLE
CURRENT
EFFICIENCY
50
60
69
200
300
—
50
60
74
200
300
—
50
60
74
200
300
—
mA p-p
%
W
ms
1, 2
LOAD FAULT
POWER DISSIPATION
RECOVERY
50% - 100% - 50%
TRANSIENT
—
—
1.5
2.0
—
—
1.2
1
1.9
10
—
—
1.2
1
1.8
10
SHORT CIRCUIT
STEP LOAD
12.5 25
2, 3
RESPONSE
—
—
200 500
200 500
—
—
300 750
400 1000
—
—
400 1000
400 1000
mV pk
µs
RECOVERY
STEP LINE
RESPONSE
TRANSIENT
16 TO 40 V
IN
2, 3
—
—
200 500
200 500
—
—
200 800
250 600
—
—
200 500
200 500
mV pk
µs
40 TO 16 V
IN
RECOVERY
16 TO 40 V
IN
—
—
400 1000
400 1000
—
—
700 1300
700 1300
—
—
500 1300
500 1300
40 TO 16 V
IN
START-UP
DELAY
—
—
10
0
75
—
—
10
0
75
—
—
10
0
75
ms
OVERSHOOT
200
500
500
mV pk
Notes
1. Indefinite short circuit protection not guaranteed above 125°C (case).
2. Recovery time is measured from application of the transient to point at which
is within 1% of V at final value.
3. Transition time >10µs.
V
OUT
OUT
2
SMSA SERIES
5 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
DUAL OUTPUT MODELS
SMSA2812D
SMSA2815D
PARAMETER
CONDITIONS
MIN
11.88
11.76
TYP
12.00
12.00
MAX
12.12
12.24
MIN
TYP
15.00
15.00
MAX
15.15
15.30
UNITS
OUTPUT VOLTAGE
+V
14.85
14.70
OUT
VDC
–V
OUT
1
OUTPUT CURRENT
V
= 16 to 40 VDC
IN
Tc = –55°C to +125°C
—
208
333
—
167
267
mA
1
OUTPUT POWER
V
= 16 to 40 VDC
IN
Tc = –55°C to +125°C
—
—
—
5
—
—
—
5
W
OUTPUT RIPPLE VOLT.
10 kHz - 2 MHz
80
300
120
300
mV p-p
LINE REGULATION
Vin = 16 to 40 VDC
Tc = –55°C to +125°C
+V
—
—
20
40
100
200
—
—
10
40
50
OUT
mV
mV
–V
180
OUT
LOAD REGULATION
NO LOAD TO FULL
Tc = –55°C to +125°C
+V
—
—
10
120
400
—
—
10
50
50
OUT
–V
100
200
OUT
2
CROSS REGULATION
+P = 20 - 80 %, –P = 80 - 20%
O
O
—
3.7
6
—
3
6
–P = 20 - 80 %, +P = 80 - 20%
O
O
NO LOAD TO FULL
CONTINUOUS
INPUT VOLTAGE
Tc = –55°C to +125°
16
28
40
16
28
40
VDC
V
TRANSIENT 50 ms
NO LOAD
—
—
—
50
63
—
—
—
50
60
INPUT CURRENT
40
38
Tc = –55°C to +125°C
FULL LOAD
INHIBITED
—
—
—
—
67
235
3
—
5
—
—
—
—
68
235
3
—
5
mA
INPUT RIPPLE
CURRENT
10 kHz TO 10 MHz
Tc = –55°C to +125°C
50
60
73
200
300
—
50
60
73
200
300
—
mA p-p
%
EFFICIENCY
3, 4
LOAD FAULT
POWER DISSIPATION
SHORT CIRCUIT
—
—
1.3
1
1.7
30
—
—
1.3
1
1.6
50
W
RECOVERY
ms
STEP LOAD
50% - 100% - 50% BALANCED
TRANSIENT
4, 5
RESPONSE
—
—
200
200
550
500
—
—
220
200
600
500
mV
µs
BOTH OUTPUTS
RECOVERY
4, 5
STEP LINE RESP.
16 TO 40 VDC
—
—
—
—
—
—
200
200
300
800
10
500
500
750
2000
30
—
—
—
—
—
—
600
600
500
500
10
1500
1500
1200
1200
25
mV pk
µs
TRANSIENT
BOTH OUTPUTS
40 TO 16 VDC
16 TO 40 VDC
RECOVERY
40 TO 16 VDC
START-UP
DELAY
ms
OVERSHOOT
0
500
0
500
mV pk
Notes
1. Up to 4 watts (80% of full power) is available from either output providing the
opposite output is carrying 20% of total power.
3. Indefinite short circuit protection not guaranteed above 125°C (case).
4. Recovery time is measured from application of the transient to point at which
2. Shows regulation effect on the minus output during the defined cross loading
conditions, with 80% and 20% referring to the total output power of the
converter. See Figures 15 and 16.
V
is within 1% of V at final value.
OUT
OUT
5. Transition time >10µs.
3
SMSA SERIES
5 WATT
DC/DC CONVERTERS
6
1
Positive
Output
Positive
Input
Output Filter
Error
Amp
5
VR
2
Inhibit
Output
Common
PWM
Control
Input
7
8
Common
3
Negative
Output
Output Filter
Feedback
Case
Ground
= DUAL OUTPUT
FIGURE 1: SMSA BLOCK DIAGRAM
SMSA
Positive
Input
6
12 k ꢀ
5 k ꢀ
400 ꢀ
5
Inhibit
50 k ꢀ
200 pF
10 K
2N3904
7
Vcc
Typically 1.5 V
when inhibited
10 k ꢀ
3.9 K
Input
Common
FIGURE 2: INHIBIT INTERFACE
4
SMSA SERIES
5 WATT
DC/DC CONVERTERS
EMI Filter
SMSA2815S
T
1
Positive
Input
Positive
Output
Positive
Input
Positive
Output
+
To Load
C
C
From input
power source
2
3
Case
Output Common
Input
Common
Input
Common
Output
Common
Case
T
1
C
1
FIGURE 3: LOW NOISE OUTPUT FILTER FOR S MSA SINGLE OUTPUT MODEL
EMI Filter
SMSA2815D
T
1
Positive
Positive
Output
Positive
Positive
Output
Input
Input
+
C
C
C
From input
power source
2
Case
3
To Loads
+
Output Common
C
5
4
Input
Common
Input
Common
Output
Common
Negative
Output
Case
T
1
C
1
FIGURE 4: LOW NOISE OUTPUT FILTER FOR SMSA DUAL OUTPUT MODEL
The filter suggestions in Figures 3 and 4 will further reduce the
output ripple for systems requiring very low output noise.
C1 = 0.27 µF ceramic capacitor, 500V
C2 = C4 = 6.8 µF tantalum capacitor
C3 = C5 = 0.27 µF ceramic capacitor
Single output: T1 = 15T #28 AWG winding on toroid, µ = 5000
i
Dual output: T2 = 10T #28 AWG winding on toroid, µ = 5000
i
For best results, make interconnections as short as possible.
5
SMSA SERIES
5 WATT
DC/DC CONVERTERS
PIN OUT
Pin
1
Single Output
Positive Output
Dual Output
Positive Output
2
Output Common Output Common
3
No connection
No connection
Inhibit
Negative Output
No connection
Inhibit
4
5
6
Positive Input
Input Common
Case Ground
Positive Input
Input Common
Case Ground
7
8
Squared corner on header and dot
on top of cover indicate pin one.
1
8
2
3
4
5
6
BOTTOM VIEW
SMSA
7
See Figures 23 and 24 for dimensions.
FIGURE 5: PIN OUT BOTTOM VIEW
SMD NUMBERS
STANDARD MICROCIRCUIT
SMSA SERIES
SIMILAR PART
MODEL NUMBERING KEY
DRAWING (SMD)
5962-9309202HXC
5962-9309302HXC
5962-9309402HXC
5962-9308902HXC
5962-9309002HXC
SMSA2805S/HO
SMSA2812S/HO
SMSA2815S/HO
SMSA2812D/HO
SMSA2815D/HO
SMSA 28 05 S /
K R
Base Model
Voltage In (28V)
Output Voltage
The SMD number shown is for Class H screening and no
Radiation Hardness Assurance (RHA) level. 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:
Number of Outputs
(S = single, D = dual)
Environmental Screening
Radiation Tolerance
http://dscc.dla.mil/programs/smcr
6
SMSA SERIES
5 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
80
80
70
60
50
40
30
80
70
60
50
40
30
16V
16V
16V
70
60
50
40
30
28V
28V
28V
40V
40V
40V
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
5
6
OUTPUT POWER (Watts)
SMSA2805S EFFICIENCY
OUTPUT POWER (Watts)
SMSA2815S EFFICIENCY
OUTPUT POWER (Watts)
SMSA2812S EFFICIENCY
FIGURE 2
FIGURE 3
FIGURE 4
80
70
60
50
40
30
16V
10
20
V
IN
30
40
40V
28V
50
60
70
V
80
OUT
90
100
0.1
1
2
3
4
5
6
1
10
100
100µs/div
OUTPUT POWER (Watts)
SMSA2815D EFFICIENCY
FREQUENCY (kHz)
SMSA SERIES AUDIO REJECTION
16V TO 40V
SMSA2805S STEP LINE RESPONSE
FIGURE 5
FIGURE 6
FIGURE 7
100% to 10%
100% to 50%
V
IN
10% to 100%
50% to 100%
V
OUT
100µs/div
1 ms / div
100µs/div
10% 100%
50% 100%
SMSA2805S TURN-ON INTO NO LOAD
SMSA2805S STEP LOAD RESPONSE
SMSA2805S STEP LOAD RESPONSE
FIGURE 8
FIGURE 9
FIGURE 10
50% to 10%
–P =2.5W
OUT
–P
=0.5W
OUT
V
IN
90% to 10%
+V
OUT
–V
OUT
10% to 90%
10% to 50%
200µs/div
100µs/div
10% 50%)
200µs/div
10% 90%
16V TO 40V
SMSA2815D INPUT STEP LINE RESPONSE
SMSA2815D +V STEP LOAD RESPONSE
SMSA2815D +V STEP LOAD RESPONSE
O
O
FIGURE 12
FIGURE 13
FIGURE 11
7
SMSA SERIES
5 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, unless otherwise specified.
5
4
10
8
2812D
3
6
2
4
2812D
COND A
COND B
V
IN
1
2
0
+V
0
2815D
OUT
OUT
2815D
–1
–2
–3
–4
–5
–2
–4
–6
–8
–10
–V
2812D
30
10
20
40
50
90/10 70/30 50/50 30/70 10/90
500µs/div
OUTPUT LOAD (%)
OUTPUT LOAD (+V % / –V
90–10% LOAD on +V, 10-90% LOAD on –V
SMSA DUAL CROSS REGULATION
%)
OUT
OUT
SMSA2815D TURN-ON INTO NO LOAD
COND. A: 50% LOAD +V; 10% to 50% –V
COND. B: 50% LOAD –V; 10% to 50% +V
SMSA DUAL CROSS REGULATION
FIGURE 14
FIGURE 15
FIGURE 16
17
17
2805S
2815D
16
16
15
15
14
2812S
14
13
13
2812D
2815S
12
12
1
2
3
4
5
6
1
2
3
4
5
6
OUTPUT POWER (Watts)
50 mV DROP
OUTPUT POWER (Watts)
50 mV DROP
SMSA LOW LINE DROPOUT VS. LOAD
SMSA LOW LINE DROPOUT VS. LOAD
FIGURE 17
FIGURE 18
8
SMSA SERIES
5 WATT
DC/DC CONVERTERS
Dot on top of case
indicates pin one
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Cold Rolled Steel/Nickel
CASE C
BOTTOM VIEW
See Figure 24
Pins
Copper/Nickel/Gold
compression glass seal
1.075 max
(27.31)
for pin configurations.
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
1.075 max
(27.31)
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 23: CASE C MAXIMUM DIMENSIONS
BOTTOM VIEW CASE C1
SMSA Series
Projection Weld
Squared corner and dot on
top of case indicate pin one.
0.932
(23.67)
1
8
2
3
7
4
5
0.025
(0.64)
dia.
6
0.132
(3.35)
0.000
FIGURE 24: CASE C1
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.
9
SMSA SERIES
5 WATT
DC/DC CONVERTERS
TABLE 1: ELEMENT EVALUATION
ELEMENT EVALUATION
TEST PERFORMED
STANDARD
(O)
CLASS
H
CLASS
K
(COMPONENT LEVEL)
M/S
yes
no
no
no
no
no
no
no
no
no
no
no
no
no
P
M/S
P
M/S
P
Element Electrical
no yes yes yes
no yes yes yes
yes
yes
no
Element Visual
Internal Visual
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no yes
no no
no no
Temperature Cycling
Constant Acceleration
Interim Electrical
Burn-in
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
no
yes
yes
no
no
Post Burn-in Electrical
Steady State Life
Voltage Conditioning /Aging
Visual Inspection
Final Electrical
no
no
yes
yes
yes
yes
no
no yes yes yes
no yes yes yes
Wire Bond Evaluation
SEM
no
no
no yes
SLAM™/C-SAM:
Input capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes no
yes
Notes
M/S Active components (Microcircuit and Semiconductor Die)
Passive components
P
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
10
SMSA SERIES
5 WATT
DC/DC CONVERTERS
TABLE 2: PRODUCT ENVIRONMENTAL SCREENING
ENVIRONMENTAL SCREENING
TEST PERFORMED
(END ITEM LEVEL)
Non-destruct bond pull
Method 2023
Pre-cap inspection
Method 2017, 2032
Temperature cycle
Method 1010, Cond. C
Constant acceleration
Method 2001, 3000 g
PIND Test
STANDARD
(O)
CLASS
H
CLASS
K
no
yes
yes
yes
no
no
yes
yes
yes
no
yes
yes
yes
yes
yes
Method 2020, Cond. B
Radiography
Method 2012
Pre burn-in test
no
yes
no
yes
yes
yes
Burn-in, Method 1015, 125°C
96 hours
160 hours
2 x 160 hour (includes mid BI test)
Final electrical test
MIL-PRF-38534, Group A
Hermeticity test
yes
no
no
no
yes
no
no
no
yes
yes
yes
yes
Fine Leak,
Method 1014, Cond. A
Gross Leak,
Method 1014, Cond. C
Final visual inspection
Method 2009
yes
yes
yes
yes
yes
yes
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
11
SMSA SERIES
5 WATT
DC/DC CONVERTERS
TABLE 3: RADIATION HARDNESS LEVELS
PRODUCT LEVEL AVAILABILITY
RADIATION HARDNESS LEVELS
ENVIRONMENTAL SCREENING LEVELS
STANDARD
(O)
CLASS
H
CLASS
K
O: Standard, no radiation guarantee
For system evaluation, electrically
and mechanically comparable to
H and K level.
Not
available
OO
HO
L: Radiation hardened – Tested lots
Up to 50 k Rads (Si) total dose
No SEU guarantee
Not
available
HL
KL
R: Radiation hardened – Tested lots
Up to 100 k Rads (Si) total dose
SEU guarantee up to 40 MeV
Not
available
HR
KR
L and R are referenced to MIL-PRF-38534, appendix G, Radiation Hardness
Assurance (RHA) levels.
TABLE 4:
REPORTS INCLUDED WITH PURCHASE OF PRODUCT HL, KL, HR, or KR
1. Radiation Susceptibility Analysis
2. Electrical/Thermal Stress Analysis and Derating Report
3. MTBF Report
4. FMEA Report
HO option: Reports 2, 3, and 4 are included with purchase.
OO option: Select reports available as separate purchases.
Contact Information:
www.interpoint.com
Interpoint Headquarters USA
Phone: 1-800-822-8782
+425-882-3100
Interpoint UK
Phone: +44-1252-815511
Interpoint France
Phone: +33-134285455
Email:
poweruk@intp.com
Email:
powerfr@intp.com
Email:
power@intp.com
11915-001-DTS Rev A This revision supercedes all previous releases.
All technical information is believed to be accurate, but no responsibility is assumed
for errors or omissions. Interpoint reserves the right to make changes in products or
specifications without notice. SMSA Series is a trademark of Interpoint. Copyright
© 1997-2001 Interpoint Corporation. All rights reserved.
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