MODELS
VDC O
UTPUT
B1-4
SINGLE
5
12
15
DUAL
12
15
DC/DC C
ONVERTERS
120 V
OLT
I
NPUT
SMHP120 SERIES
65 WATT
DESCRIPTION
The SMHP120TM Series DC/DC converters provide up to 65 watts
of output power over the full -55 to 125C temperature range.
SMHP120 models operate from a MIL-STD-704 nominal 120 volt
DC power bus from 80 to 175 VDC continuous operation and
provide isolated outputs at 5, 12, 15, and 28 VDC. Parallel opera-
tion for all loading conditions is supported without any requirement
for external components.
S
CREENING
SMHP120 converters offer three screening options Standard, or
Class H. See Section C2, Quality Assurance, pages C2-7 through
C2-9, for descriptions.
C
ONVERTER
D
ESIGN
SMHP120 DC/DC converters are constant frequency, pulse width
modulated switching power supplies which use a quasi-square
wave, two-switch single-ended forward converter design. Tight load
regulation is achieved through a wide-bandwidth magnetic feedback
circuit.
SMHP converters meet a wide variety of military/aerospace
performance and environmental specifications. Their continuous
operation input voltage (80 to 175) meets the normal operating limits
of MIL-STD-704D. The units are built as fully hermetic thick film
hybrids in Interpoint's MIL-STD-1772 certified facilities.
P
ARALLEL
O
PERATION
Up to five single output SMHP converters may be used in parallel to
power a single load by simply connecting the share pins of all units.
Units in this configuration have a 90% current sharing accuracy over
all loading conditions, and provide true n+1 operation.
F
EATURES
Synchronization units may be synchronized to an external clock or
to one another by using sync in and sync out pins provided on each
unit. The converters have a nominal switching frequency of 600 kHz,
but may be synchronized at any frequency from 525 to 675 kHz.
Low voltage lock-out shuts down when the input line voltage falls
below approximately 50 VDC to provide smooth initialization.
Continuous short circuit protection using foldback current limit set
at approximately 125%.
Soft-start at both turn-on and recovery after load fault conditions.
Remote sense to provide automatic compensation for voltage
drops on output lines on single output models.
For more information, contact your Interpoint representative
listed in Section A5.
F
EATURES
Fully qualified to Class H
55 to +125C operation
80 to 175 VDC input
Fully Isolated
Magnetic feedback
Fixed frequency, 600 kHz typical
Topology Single Ended Forward
Inhibit input and output side
Sync in and out
Indefinite short circuit protection
Remote sense on single
output models
Up to 85% efficiency
Parallelable up to 180 watts
Size (max.): 3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16mm)
See Section B8, case U1, for dimensions.
Weight:
100 grams maximum
Screening: Standard or Class H (MIL-PRF-38534)
See Section C2 for screening options, see Section A5
for ordering information.
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. SMHP120 is a trademark of Interpoint.
Copyright 1999 Interpoint. All rights reserved.
B8-36
CASE
CASE U
C
ASES
Materials
Header Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins #52
alloy/Gold
compression glass seal
Case dimensions in inches (mm)
Tolerance
0.005 (0.13) for three decimal places
0.01 (0.2) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage
the device. Solder pins individually with heat
application not exceeding 300
C for 10 seconds
per pin.
CASE U
TOP VIEW
(PIN SIDE)
See Figures 55 and 56 for dimensions
1.505 max (38.23)
3.005 (76.33) max.
Note: Pins are shown for Case U1.
Angled corner indicates pin one
F
IGURE
54: C
ASE
U M
AXIMUM
D
IMENSIONS
B8-37
CASE U
C
ASES
Angled corner
indicates pin one.
1
2
3
4
5
6
12
11
10
9
8
7
0.000
0.050 (1.27)
0.000
0.120 (3.05)
0.250 (6.35)
0.450 (11.43)
0.650 (16.51)
0.850 (21.59)
1.050 (26.67)
1.250 (31.75)
1.380 (35.05)
1.505 (38.23) max.
0.000
0.120 (3.05)
0.250 (6.35)
2.750 (69.85)
2.880 (73.15)
3.005 (76.33) max.
0.128 dia
(3.25).
0.040 dia
(1.02)
0.23 (5.8) Lead Length
0.400 (10.16)
max.
0.220 (5.59
TOP VIEW CASE U1
MFL Series and MHP Series: Screening Standard, ES or 883
MFLHP Series, FMD270 EMI Filter, and FMD28-461SL EMI Filters:
Screening Standard or ES
SMFL, SMFLHP, SMHP, and SSP Series; SFCS, and SFME EMI Filters:
Screening Standard, Class H or K
HUM70 Module and LCM Module: Screening Standard or ES
Seam Seal
F
IGURE
55: C
ASE
U1
C2-7
QA SCREENING
SPACE PRODUCTS
S
PACE
P
RODUCTS
E
LEMENT
E
VALUATION
S
TANDARD
C
LASS
C
LASS
T
EST
P
ERFORMED
(O)
H
K
(
COMPONENT LEVEL
)
M/S
P
M/S
P
M/S
P
Element Electrical
yes
no
yes
yes
yes
yes
Element Visual
no
no
yes
yes
yes
yes
Internal Visual
no
no
yes
no
yes
no
Temperature Cycling
no
no
no
no
yes
yes
Constant Acceleration
no
no
no
no
yes
yes
Interim Electrical
no
no
no
no
yes
no
Burn-in
no
no
no
no
yes
no
Post Burn-in Electrical
no
no
no
no
yes
no
Steady State Life
no
no
no
no
yes
no
Voltage Conditioning /Aging
no
no
no
no
no
yes
Visual Inspection
no
no
no
no
no
yes
Final Electrical
no
no
yes
yes
yes
yes
Wire Bond Evaluation
*
no
no
yes
yes
yes
yes
SEM
no
no
no
no
yes
no
SLAMTM/C-SAM:
Input capacitors only
no
no
no
yes
no
yes
(Add'l test, not req. by H or K)
Definitions
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAMTM: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
Notes
M/S
Active components (Microcircuit and Semiconductor Die)
P
Passive components
*
Not applicable to EMI filters that have no wirebonds
SMFLHP Series
SMFL Series
SMHP Series (O&H only)
SMTR Series
SSP Series
SMHF Series
SMSA Series
SLH Series
SLIM Module
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
SFMC EMI Filter
STF EMI Filter
Applies to the following products:
C2-8
QA SCREENING
SPACE PRODUCTS
E
NVIRONMENTAL
S
CREENING
T
EST
P
ERFORMED
S
TANDARD
C
LASS
C
LASS
(
END ITEM LEVEL
)
(O)
H
K
Non-destruct bond pull*
Method 2023
no
no
yes
Pre-cap inspection
Method 2017, 2032
yes
yes
yes
Temperature cycle
Method 1010, Cond. C
yes
yes
yes
Constant acceleration
Method 2001, 3000 g
yes
yes
yes
PIND Test
Method 2020, Cond. B
no
no
yes
Radiography
Method 2012
no
no
yes
Pre burn-in test
yes
yes
yes
Burn-in, Method 1015, 125C
96 hours
yes
no
no
160 hours
no
yes
no
2 x 160 hour (includes mid BI test)
no
no
yes
Final electrical test
MIL-PRF-38534, Group A
yes
yes
yes
Hermeticity test
Fine Leak,
Method 1014, Cond. A
yes
yes
yes
Gross Leak,
Method 1014, Cond. C
yes
yes
yes
Final visual inspection
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Note
* Not applicable to EMI filters that have no wirebonds.
SMFLHP Series
SMFL Series
SMHP Series (O&H only)
SMTR Series
SSP Series
SMHF Series
SMSA Series
SLH Series
SLIM Module
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
SFMC EMI Filter
STF EMI Filter
Applies to the following products:
C2-7
QA SCREENING
SPACE PRODUCTS
S
PACE
P
RODUCTS
E
LEMENT
E
VALUATION
S
TANDARD
C
LASS
C
LASS
T
EST
P
ERFORMED
(O)
H
K
(
COMPONENT LEVEL
)
M/S
P
M/S
P
M/S
P
Element Electrical
yes
no
yes
yes
yes
yes
Element Visual
no
no
yes
yes
yes
yes
Internal Visual
no
no
yes
no
yes
no
Temperature Cycling
no
no
no
no
yes
yes
Constant Acceleration
no
no
no
no
yes
yes
Interim Electrical
no
no
no
no
yes
no
Burn-in
no
no
no
no
yes
no
Post Burn-in Electrical
no
no
no
no
yes
no
Steady State Life
no
no
no
no
yes
no
Voltage Conditioning /Aging
no
no
no
no
no
yes
Visual Inspection
no
no
no
no
no
yes
Final Electrical
no
no
yes
yes
yes
yes
Wire Bond Evaluation
*
no
no
yes
yes
yes
yes
SEM
no
no
no
no
yes
no
SLAMTM/C-SAM:
Input capacitors only
no
no
no
yes
no
yes
(Add'l test, not req. by H or K)
Definitions
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
SLAMTM: Scanning Laser Acoustic Microscopy
C-SAM: C - Mode Scanning Acoustic Microscopy
Notes
M/S
Active components (Microcircuit and Semiconductor Die)
P
Passive components
*
Not applicable to EMI filters that have no wirebonds
SMFLHP Series
SMFL Series
SMHP Series (O&H only)
SMTR Series
SSP Series
SMHF Series
SMSA Series
SLH Series
SLIM Module
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
SFMC EMI Filter
STF EMI Filter
Applies to the following products:
C2-8
QA SCREENING
SPACE PRODUCTS
E
NVIRONMENTAL
S
CREENING
T
EST
P
ERFORMED
S
TANDARD
C
LASS
C
LASS
(
END ITEM LEVEL
)
(O)
H
K
Non-destruct bond pull*
Method 2023
no
no
yes
Pre-cap inspection
Method 2017, 2032
yes
yes
yes
Temperature cycle
Method 1010, Cond. C
yes
yes
yes
Constant acceleration
Method 2001, 3000 g
yes
yes
yes
PIND Test
Method 2020, Cond. B
no
no
yes
Radiography
Method 2012
no
no
yes
Pre burn-in test
yes
yes
yes
Burn-in, Method 1015, 125C
96 hours
yes
no
no
160 hours
no
yes
no
2 x 160 hour (includes mid BI test)
no
no
yes
Final electrical test
MIL-PRF-38534, Group A
yes
yes
yes
Hermeticity test
Fine Leak,
Method 1014, Cond. A
yes
yes
yes
Gross Leak,
Method 1014, Cond. C
yes
yes
yes
Final visual inspection
Method 2009
yes
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Note
* Not applicable to EMI filters that have no wirebonds.
SMFLHP Series
SMFL Series
SMHP Series (O&H only)
SMTR Series
SSP Series
SMHF Series
SMSA Series
SLH Series
SLIM Module
SFME120 EMI Filter
SFME28 EMI Filter
SFCS EMI Filter
SFMC EMI Filter
STF EMI Filter
Applies to the following products:
C2-9
QA SCREENING
SPACE PRODUCTS
PRODUCT LEVEL AVAILABILITY
ENVIRONMENTAL SCREENING LEVELS
STANDARD CLASS
CLASS
RADIATION HARDNESS LEVELS
(O)
H
K
O: Standard, no radiation guarantee
For system evaluation, electrically
OO
HO
Not
and mechanically comparable to
available
H and K level.
L: Radiation hardened Tested lots
Not
Up to 50 k Rads (Si) total dose
available
HL
KL
No SEU guarantee
R: Radiation hardened Tested lots
Not
Up to 100 k Rads (Si) total dose
available
HR
KR
SEU guarantee up to 40 MeV
R
EPORTS
: I
NCLUDED 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
OO option: Select reports available as separate purchases.
R
ADIATION
H
ARDNESS
L
EVELS
FOR
DC/DC C
ONVERTERS AND
L
INE
I
NPUT
M
ODULES1
Note
1. Interpoint's EMI filters are designed exclusively with passive components providing
maximum tolerance for space environment requirements.
SMFLHP Series (levels O and L only)
SMFL Series (levels O and L only)
SMTR Series
SSP Series
SMHF Series
SMSA Series
SLH Series
SLIM Series Modules
Applies to the following products:
L and R are referenced to MIL-PRF-38534, appendix G, Radiation Hardness
Assurance (RHA) levels.
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