SMHF283R3SG/OR [CRANE]
DC/DC CONVERTERS 28 VOLT INPUT; DC / DC转换器， 28伏特的输入
| 型号： | SMHF283R3SG/OR |
| 厂家： | 
Crane Aerospace & Electronics. |
| 描述： | DC/DC CONVERTERS 28 VOLT INPUT |
| 文件： | 总12页 (文件大小：213K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
FEATURES
• Fully qualified to Class H or K
• Radiation hardened
• –55° to +125°C operation
• 16 to 40 VDC input
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
28 VOLT NPUT
I
• Fully Isolated
• Red hard optocoupler feedback
• Fixed frequency, 550 kHz typical
• Topology – Single Ended Forward
• Transient protection 50 V/120 ms
• Inhibit function
• Sync function
• Indefinite short circuit protection
• Undervoltage lockout
MODELS
VDC OUTPUT
SINGLE
3.3
5
DUAL
5
12
15
12
15
Size (max.): Non flanged 1.460 x 1.130 x 0.330 (37.08 x 28.70 x 8.38 mm)
Flanged 2.005 x 1.130 x 0.330 (50.93 x 28.70 x 8.38 mm)
See Figures 21 through 24 for dimensions.
• Up to 84% efficiency
Weight:
30 grams maximum.
Screening: Standard, Class H, or Class K (MIL-PRF-38534)
Radiation hardness levels O, L, and R
DESCRIPTION
step load transient is as low as 1.3% with a 150 msec recovery time.
Input ripple current is typically 35 mA p-p with output ripple voltage
typically 30 mV p-p .
The SMHF Series™ of 28 V DC/DC converters offers a wide input
voltage range of 16 to 40 volts and up to 15 watts of output power.
The units are capable of withstanding short term transients up to 50
volts. The package is a hermetically sealed, seam-welded metal
case. Flanged and non-flanged models are available.
INHIBIT FUNCTION
SMHF converters provide an inhibit terminal that can be used to
disable internal switching, resulting in no output and very low quies-
cent input current. The converter is inhibited when a TTL compatible
low (≤0.8 – output disabled) 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 8.5 to 12 VDC. In the inhibit mode, a maximum of 12 mA must be
sunk from the inhibit pin at 28 VDC input.
SCREENING AND REPORTS
SMHF converters offer three screening options (Standard, Class H,
or Class K) and three levels of radiation hardness (O, L, and R). See
Tables 1, 2, and 3 for more information. Detailed reports on product
performance are also available and are listed in Table 4.
CONVERTER DESIGN
The SMHF converters are switching regulators that use a quasi-
square wave, single-ended forward converter design with a constant
switching frequency of 550 kHz. Isolation between input and output
circuits is provided with a transformer in the forward path and a
temperature compensated opto-coupler in the feedback control
loop. The opto-coupler is radiation hardened and is especially
selected for space applications.
SYNCHRONIZATION
A synchronization feature is included with the SMHF Series that
allows the user to match the switching frequency of the converter to
the frequency of the system clock. An external synchronization
feature is included that allows the user to adjust the nominally
550kHz operating frequency to any frequency within the range of
500 kHz to 600 kHz. This is initiated by applying a TTL compatible
input of the desired frequency to pin 5.
For the SMHF dual output models, cross regulation is maintained by
tightly coupled output magnetics. Up to 70% of the total output
power is available from either output, providing the opposite output
is simultaneously carrying 30% of the total output power. Predictable
current limit is accomplished by directly monitoring the output load
current and providing a constant current output above the overload
point.
SHORT CIRCUIT PROTECTION
SMHF Series converters provide short circuit protection by
restricting the output current to approximately 115% of the full load
output current. The output current is sensed in the secondary stage
to provide highly predictable and accurate current limiting, and to
eliminate foldback characteristics.
HIGHER POWER DENSITY
The SMHF Series offers a new standard of performance for small
size and high power density. At just 0.33 inch high and a total foot-
UNDERVOLTAGE LOCKOUT
2
Undervoltage lockout prevents the units from operating below
approximately 14 VDC input voltage to keep system current levels
smooth, especially during initialization or re-start operations.
print of 1.7 in , this low profile package offers a total power density
of up to 30 watts per cubic inch.
LOW NOISE, HIGH AUDIO REJECTION
The SMHF converters’ feed-forward compensation system provides
excellent dynamic response and noise rejection. Audio rejection is
typically 50 dB. Typical output voltage response for a 50% to 100%
33
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
ABSOLUTE MAXIMUM RATINGS
SYNC AND INHIBIT
TYPICAL CHARACTERISTICS
Input Voltage
• 16 to 40 VDC
Power Dissipation (Pd)
• 8 W
Output Power
• 12 to 15 watts depending on model
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
Sync In (500 to 600 kHz)
• Duty cycle 40% to 60%
• Logic low 0.8 V max
Output Voltage Temperature Coefficient
• 100 ppm /°C typical
• 150 ppm/°C maximum
Input to Output Capacitance
• 60 pF typical
Undervoltage Lockout
• 12 V input typical
Current Limit
• 115% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• Logic high 4.5 V min, 5 V max
• Referenced to input common
• If not used, connect to input common
Inhibit TTL Open Collector
• Logic low (output disabled)
Logic low voltage ≤0.8 V max
Inhibit pin current 4.0 mA max
• Referenced to input common
• Logic high (output enabled)
Open collector or unconnected
RECOMMENDED OPERATING CONDITIONS
• 50 dB typical
Input Voltage Range
• 16 to 40 VDC continuous
• 0 V for up to 50 msec transient
Case Operating Temperature (Tc)
• –55°C to +125°C full power
Conversion Frequency (º55°C to +125°C Tc)
• Free run 550 kHz typical
480 kHz min, 620 kHz max
Inhibit Pin Voltage (unit enabled)
• 8.5 to 12 V
• –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
SMHF283R3S
SMHF2805S
SMHF2812S
SMHF2815S
OUTPUT VOLTAGE
Tc = 25°C
3.27 3.3 3.33 4.95
5
5.05 11.88 12 12.12 14.85 15 15.15
VDC
A
OUTPUT CURRENT
V
V
= 16 TO 40 VDC
—
0
—
—
2.4
8
—
0
—
2.4
12
80
—
0
—
—
1.25
15
—
0
—
—
60
1.00
15
IN
OUTPUT POWER
= 16 TO 40 VDC
—
W
IN
OUTPUT RIPPLE
VOLTAGE
LINE REGULATION
10 kHz - 2 MHz
Tc = –55°C TO +125°C
= 16 TO 40 VDC
—
—
—
60
80
5
160
240
100
—
—
—
30
—
—
—
60
50
5
160
120
100
—
—
—
75
mV p-p
mV
150 240
5
100 260
V
100
5
100
IN
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 120 ms
NO LOAD
—
16
0
20
28
—
25
—
5
45
—
73
50
40
—
16
0
20
28
—
25
50
40
50
40
—
16
0
20
28
—
25
50
40
50
50
—
16
0
20
28
—
25
50
40
50
62
mV
VDC
V
50
—
—
—
—
—
70
65
—
—
—
—
—
73
—
—
—
—
—
78
—
—
—
—
—
74
FULL LOAD
397
12
80
120
—
560 624
680 752
670 752
mA
INHIBITED
5
12
80
120
—
5
12
80
120
—
5
12
80
120
—
INPUT RIPPLE
CURRENT
10k Hz - 10 MHz
Tc = –55°C TO +125°C
Tc = 25°C
35
—
75
35
—
79
35
—
80
mA p-p
%
EFFICIENCY
1
LOAD FAULT
SHORT CIRCUIT
POWER DISSIPATION
—
—
5
8
—
—
3.5
7.5
8
—
—
3.5
7.5
8
—
—
3.5
7.5
7
W
2
RECOVERY
7.5
30
30
30
30
ms
STEP LOAD
RESPONSE
50 %–100%– 50%
TRANSIENT
–400 150 500 –500 150 500 –700 150 700 –800 200 800
150 300 150 300 150 500 600 1200
mV pk
µs
2
RECOVERY
—
—
—
—
STEP LINE
RESPONSE
16 TO 40 TO 16 V
IN
3
TRANSIENT
–800 550 800 –800 550 800 –800 550 800 –800 550 800
mV pk
µs
µs
2
RECOVERY
—
—
—
0.8
10
1.2
25
—
—
—
0.8
10
1.2
25
—
—
—
0.8
10
1.2
25
—
—
—
0.8 1.2
10 25
200 1500
START-UP
DELAY
4
0 TO 28 VIN
OVERSHOOT
200 300
100 600
200 1200
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 the point at which Vout is within regulation.
3. Input step transition time >10µs.
4. Input step transition time <100µs.
34
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.
DUAL OUTPUT MODELS
SMHF2805D
SMHF2812D
SMHF2815D
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
OUTPUT VOLTAGE
+V
4.95
5.00
5.05
11.88
12.00
12.12
14.85
15.00
15.15
OUT
VDC
–V
OUT
4.92
5.00
5.08
11.82
12.00
1218
14.78
15.00
15.23
1
OUTPUT CURRENT
V
V
= 16 to 40 VDC
= 16 to 40 VDC
—
—
1.2
—
1.68
12
—
—
0.625
—
0.875
15
—
—
0.500
—
0.700
15
A
IN
IN
1
OUTPUT POWER
W
OUTPUT RIPPLE
10 kHz - 2 MHz
—
—
60
160
240
—
—
70
175
275
—
—
70
175
275
mV p-p
mV
VOLTAGE
V
Tc = –55°C to +125°C
100
100
100
OUT
LINE REGULATION
BALANCED +V
OUT
—
5
50
—
5
50
—
5
50
Vin = 16 to 40 VDC
LOAD REGULATION
LOAD
BALANCED +V
LOAD –V
NEGATIVE V
–V
—
—
—
100
50
—
—
—
100
50
—
—
—
100
50
OUT
20
20
20
OUT
mV
%
—
—
—
6
150
7.5
—
—
—
3
150
6
—
—
—
3
150
6
OUT
2
CROSS REGULATION
OUT
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
CONTINUOUS
TRANSIENT 50 msec
NO LOAD
16
—
—
—
—
—
—
75
28
—
40
50
16
—
—
—
—
—
—
74
28
—
40
50
16
—
—
—
—
—
—
74
28
—
40
50
VDC
V
20
540
6
50
25
645
5
50
25
638
5
50
FULL LOAD
600
12
754
12
754
12
mA
INHIBITED
INPUT RIPPLE
CURRENT
10 kHz - 10 MHz
Tc = –55°C to +125°C
30
60
77
80
40
55
81
80
40
55
82
80
mA p-p
%
120
—
120
—
120
—
EFFICIENCY
3
LOAD FAULT
SHORT CIRCUIT
POWER DISSIPATION
—
—
3
8
—
—
3
6
—
—
3
6
W
4
RECOVERY
7.5
30
7.5
50
7.5
50
ms
5
STEP LOAD RESP.
50% – 100% – 50%
BALANCED LOADS
+V
OUT
–600
200
600
–600
300
600
–600
300
600
TRANSIENT
mV pk
µs
–V
–600
—
150
150
600
500
–600
—
100
200
500
500
–600
—
100
200
600
600
OUT
4
RECOVERY
STEP LINE RESP.
16 – 40 – 40 VDC
6
V
TRANSIENT
–800
600
800
–750
550
750
–750
550
750
mV pk
OUT
4
RECOVERY
—
—
0
0.8
12
1.2
30
—
—
0
0.8
12
1.2
25
—
—
0
0.8
12
1.2
25
ms
ms
START-UP
DELAY
7
OVERSHOOT
100
500
200
500
200
500
mV pk
Notes
1. Up to 70% of the total output power is available from either output providing
the opposite output is simultaneously carrying 30% of the total output
power. Each output must carry a minimum of 30% of the total output
power in order to maintain regulation on the negative outputs.
2. Effect on –Vout for the following conditions, percentages are of total power:
+Po = 50% to 10% and –Po = 50%
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 Vout is within regulation.
5. Response of either output with the opposite output held at half of the total
output power.
6. Input step transition time >10µs.
+Po = 50% and –Po = 50% to 10%
7. Input step transition time <100µs.
35
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
BLOCK DIAGRAM
5 µH
Positive
Input
Positive
Output
2 µF
I
D
PWM
Controller
FET
Driver
Limit
Inhibit
Ref.
I
C
Output
Common
Input
Common
FIGURE 1: SMHF SINGLE OUTPUT
36
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
PIN OUT
Pin
1
Single Output
Inhibit
Dual Output
Inhibit
2
No connection
Output Common
Positive Output
Sync
Positive Output
Output Common
Negative Output
Sync
3
4
1
5
6
7
8
Case Ground
Input Common
Positive Input
Case Ground
Input Common
Positive Input
1. If Sync is not used, pin 5 should be connected to input common.
Dot on top of cover
indicates pin one.
1
2
3
4
5
BOTTOM VIEW
SMHF SINGLE AND DUAL
NON-FLANGED OR FLANGED
8
7
6
Dotted line outlines flanged package option.
See Figures 21 through 24 for dimensions.
FIGURE 2: PIN OUT
SMD NUMBERS
MODEL NUMBERING KEY
STANDARD MICROCIRCUIT
SMHF
SIMILAR PART
SMHF 28 05
S
F
/
K
R
DRAWING (SMD)
5962-9213902HXC
IN PROCESS
5962-9160102HXC
5962-9555902HXC
5962-9214402HXC
5962-9161402HXC
Base Model
Input Voltage
Output Voltage
SMHF2805S/HO
SMHF2812S/HO
SMHF2815S/HO
SMHF2805D/HO
SMHF2812D/HO
SMHF2815D/HP
Number of Outputs
(S = single, D = dual)
Case Option
(Non-flanged case has no designator
in this position)
To indicate the flanged case option change the “X” to “Z” In the
SMD number. The SMD number shown is for Class
Screening
H
Radiation Level
screening, non-flanged, 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. Call your Interpoint repre-
sentative for status on the SMHF SMD releases which are “in
process.” SMDs can be downloaded from
http://www.dscc.dla.mil/programs/smcr
37
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
90
80
70
60
50
40
90
80
70
60
50
40
16V
16V
80
70
60
50
40
16V
28V
40V
40V
40V
28V
28V
2
4
6
8
10
12
2
4
6
8
10
12
14 15
2
4
6
8
10
12
14 15
OUTPUT POWER (Watts)
SMHF 2805S EFFICIENCY
OUTPUT POWER (Watts)
SMHF2812S EFFICIENCY
OUTPUT POWER (Watts)
SMHF2815S EFFICIENCY
FIGURE 3
FIGURE 4
FIGURE 5
90
90
80
70
60
50
40
90
80
70
60
50
40
16V
16V
16V
80
70
60
50
40
40V
40V
40V
28V
28V
28V
2
4
6
8
10 12
14
2
4
6
8
10 12
14 15
2
4
6
8
10
12
OUTPUT POWER (Watts)
SMHF2815D EFFICIENCY
OUTPUT POWER (Watts)
SMHF2812D EFFICIENCY
OUTPUT POWER (Watts)
SMHF2805D EFFICIENCY
FIGURE 6
FIGURE 7
FIGURE 8
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
V
OUT
100% to 50%
50% to 100%
V
IN
0.1
1
10
100
1ms/div
16V TO 40V
50µs/div
FREQUENCY (kHz)
SMHF SERIES AUDIO REJECTION
50%
100%
SMHF2805S STEP LINE RESPONSE
SMHF2805S STEP LOAD RESPONSE
FIGURE 10
FIGURE 9
FIGURE 11
38
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
V
IN
100% to 10%
10% to 100%
+V
OUT
P
= 12W
OUT
V
IN
V
OUT
1 ms/div
16V TO 40V
SMHF2815D STEP LINE RESPONSE
2 ms/div
200µs/div
10% 100%
SMHF2805S TURN-ON INTO FULL LOAD
SMHF2805S STEP LOAD RESPONSE
FIGURE 13
FIGURE 14
FIGURE 12
P
= 7.5 W
100% to 50%
P = 7.5 W
O
O
–V
OUT
OUT
100% to 20%
+V
20% to 100%
V
IN
50% to 100%
50µs/div
50% 100%
50µs/div
20% 100%
STEP LOAD RESPONSE
2 ms/div
SMHF+2815D V
OUT
SMHF2815D TURN-ON INTO FULL LOAD
FIGURE 15
FIGURE 16
FIGURE 17
10
8
2805D
2812D
10
5
16
6
SMHF2805S&D
4
COND A
COND B
15
2
2812D
2815D
0
2815D
0
14
–2
–4
–6
–8
–10
SMHF2812S&D
SMHF2815S&D
2812D
2805D
–5
–10
13
2805D
12
0
20
40
60
80
100
10
11
12
13
14
15
10
20
30
40
50
POSITIVE OUTPUT LOAD (% OF TOTAL LOAD)
–V
OUTPUT POWER (Watts)
50 mV DROP
LOW LINE DROPOUT VS. LOAD
OUTPUT LOAD (%)
WITH SHIFT IN LOAD BALANCE
OUT CROSS REGULATION
COND. A: 50% LOAD +V; 50% to 10% –V
COND. B: 50% LOAD –V; 50% to 10% +V
SMHF2805D/SMHF2812D/SMHF2815D
CROSS REGULATION
FIGURE 18
FIGURE 19
FIGURE 20
39
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Squared corner and dot on top
of case indicate pin one.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover Kovar/Nickel
(SMHF Series
CASE E
BOTTOM VIEW
See Figure 22
Cold Rolled Steel/Nickel/Gold)
Pins
#52 alloy/Gold
1.130 max
(28.70)
for pin configurations.
compression glass seal
Case dimensions in inches (mm)
Tolerance 0.005 (0.13) for three decimal places
0.01 (0.3) for two decimal places
1.460 max
(37.08)
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 21: CASE E MAXIMUM DIMENSIONS
BOTTOM VIEW CASE E1
SMHF Series Single and Dual
Projection Weld
Squared corner and dot on top
of case indicate pin one.
0.960
(24.38)
1
8
2
3
7
4
5
0.030 dia.
(0.76)
6
0.160
(4.06)
0.000
FIGURE 22: CASE E1
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.
40
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
Squared corner and dot on top
of case indicate pin one.
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover MHF+ Series and FMH Filter
Kovar/Nickel
SMHF
CASE G
Cold Rolled Steel/Nickel
#52 alloy (all cases)
compression glass seal
BOTTOM VIEW
Flanged package
See Figure 24
1.130 max
(28.70)
Pins
for pin configuration
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
2.005 max
(50.93)
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.
Flange Thickness: 0.047 (1.19)
FIGURE 23: CASE G MAXIMUM DIMENSIONS
BOTTOM VIEW CASE G1
Flanged cases: Designator "F" required in Case Option position of model number
SMHF Series Single and Dual
Projection Weld
Squared corner and dot on top
of case indicate pin one.
0.960
(24.38)
1
2
3
4
5
0.030 dia.
(0.76)
0.128 dia
(3.25)
0.560
(14.22)
8
7
6
0.160
(4.06)
0.000
FIGURE 24: CASE G1
41
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
TABLE 1: ELEMENT EVALUATION
ELEMENT EVALUATION
SPACE
PROTOTYPE CLASS
CLASS
K
TEST PERFORMED
(COMPONENT LEVEL)
(O)
H
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
42
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
TABLE 2: PRODUCT ENVIRONMENTAL SCREENING
ENVIRONMENTAL SCREENING
SPACE
PROTOTYPE
(O)
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
CLASS
H
CLASS
K
no
yes
yes
yes
no
no
yes
yes
yes
yes
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.
43
SMHF SERIES
SINGLE AND DUAL
15 WATT
DC/DC CONVERTERS
TABLE 3: RADIATION HARDNESS LEVELS
PRODUCT LEVEL AVAILABILITY
ENVIRONMENTAL SCREENING LEVELS
SPACE
PROTOTYPE
(O)
CLASS
H
CLASS
K
RADIATION HARDNESS LEVELS
O: Standard, no radiation guarantee
For system evaluation, electrically
and mechanically comparable to
H and K level.
R: Radiation hardened – Tested lots
Up to 100 k Rads (Si) total dose
SEU guarantee up to 40 MeV
Not
available
OO
HO
HR
Not
available
KR
R is referenced to MIL-PRF-38534, appendix G, Radiation Hardness Assurance
(RHA) levels.
TABLE 4:
REPORTS INCLUDED WITH PURCHASE OF PRODUCT 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: +44-1252-872266
Interpoint France
Phone: +33-134285455
Email:
poweruk@intp.com
Email:
powerfr@intp.com
Email:
power@intp.com
11921-001-DTS Rev B 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. SMHF Series is a trademark of Interpoint. Copyright
© 1997-2000 Interpoint. All rights reserved.
44
相关型号：
SMHF285D/HO
DC-DC Regulated Power Supply Module, 2 Output, 15W, Hybrid, HERMETIC SEALED, METAL PACKAGE-8
CRANE
SMHF285DF/HO
DC-DC Regulated Power Supply Module, 2 Output, 15W, Hybrid, HERMETIC SEALED, METAL PACKAGE-8
CRANE
©2020 ICPDF网 联系我们和版权申明