SVCL2811SEM [VPT]
SPACE QUALIFIED HYBRID INRUSH CURRENT LIMITER;
| 型号： | SVCL2811SEM |
| 厂家： | 
VPT, Inc. |
| 描述： | SPACE QUALIFIED HYBRID INRUSH CURRENT LIMITER 限制器 |
| 文件： | 总13页 (文件大小：849K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SVCL2800S SERIES
SPACE QUALIFIED HYBRID INRUSH CURRENT LIMITER
Models Available
Input: 11 V to 50 V continuous, 80 V transient
100 W and 200 W versions
Qualified to MIL-PRF-38534 Class H and Class K
SVCL Series DC-DC Converter
1.0 DESCRIPTION
1.2 SPACE LEVEL CHARACTERIZATIONS
The SVCL Series of space qualified Inrush Current Limiters are
specifically designed for the harsh radiation environment of
space applications. Performance is guaranteed through the use
of hardened semiconductor components, radiation lot
• Guaranteed TID performance to 100 krad(Si) including ELDRS
• SEE performance to 85 MeV/mg/cm2. Transients are fully
characterized for cross section and magnitude
• Worst-case analysis, stress, radiation, reliability reports available
acceptance testing (RLAT) of non-hardened components, and
analysis. The SVCL Series has been characterized for Total
Ionizing Dose (TID) performance including Enhanced Low Dose
Rate Sensitivity (ELDRS) and for Single Event Effects (SEE)
according to VPT’s DLA-approved Radiation Hardness
Assurance (RHA) plan per MIL-PRF-38534, Appendix G,
Level R. Characterization is performed at both the component
level and at the SVCL Series hybrid converter level. The SVCL28
is designed to control the inrush current drawn by VPT’s EMI
filters and DC-DC converters during turn-on. The SVCL28
functions by limiting the rate of rise of its output voltage and will
also control the inrush current of discrete input capacitors.
1.3 MANUFACTURING AND COMPLIANCE
• Qualified to MIL-PRF-38534 Class H and Class K,
DLA SMD # 5962-16216
• MIL-PRF-38534 element evaluated components
• MIL-STD-461 C/D/E/F when used with appropriate VPT EMI filter
• Manufactured in a MIL-PRF-38534 Class H and Class K facility
• MIL-STD-883
• ISO-9001
1.4 PACKAGING
• Low-profile: 1.075” x 1.075” x 0.270”
• Max weight: 16 g
The SVCL28 Series of Inrush Current Limiters is radiation
hardened and suited for use in low Earth orbit (LEO), medium
Earth orbit (MEO), geostationary orbit (GEO), deep space, and
launch vehicle programs.
• Precision projection-welded hermetic metal case
1.5 SIMILAR PRODUCTS AND ACCESSORIES
• SVFL 120 W space qualified single output DC-DC converter
• SVFL 120W space qualified dual output DC-DC converter
• DVCL INRUSH current limiter
1.1 FEATURES
• High reliability
• Wide input voltage range: 11 V to 50 V plus 80 V transient
• Custom versions available
• EMI filters
• Continuous operation over full military temperature range of
-55 °C to +125 °C with no power derating
• Compatible with external capacitance
• Inhibit out
• No use of optoisolators
• Undervoltage lockout
Products and reports described in this datasheet are subject to all export license restrictions and regulations which may include but are not limited to ITAR
(International Traffic in Arms Regulations) and the Export Administration and Foreign Assets Control Regulations. Further restrictions may apply. Contact VPT
sales for details.
Sales Information
Phone:(425) 353-3010
Fax: (425) 353-4030
SVCL28 – 3.0
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Page 1
SVCL28 Series
2.0 DIAGRAMS
2.1 BLOCK DIAGRAM
2.2 CONNECTION DIAGRAM
3.0 SPECIFICATIONS
3.1 ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings
Input Voltage (Continuous)
Input Voltage (Transient, 1 second)
INH OUT Pin Voltage
50 V
Operating Temperature (Full Load):
Storage Temperature
Lead Solder Temperature (10 seconds)
-55 °C to +125 °C
-65 °C to +150 °C
270 °C
80 V
30 V DC
3B
ESD Rating per MIL-PRF-38534
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SVCL28 – 3.0
Page 2
SVCL28 Series
3.2 PERFORMANCE SPECIFICATIONS
Tcase = -55 °C to +125 °C, VIN = +28 V ± 5%, Full Load, Cout = 100μF Unless Otherwise Specified
SVCL285R5S
Parameter
INPUT
Conditions
Min
Typ
Max
Units
Voltage
Continuous
11
-
28
-
50
80
V
V
2
Transient, 1 sec
Inrush Current
Peak, Cout = 100 μF
-
-
1.7
4.3
14
Apk
Apk
mA
V
2
-
-
Peak, Cout = 250 μF
No Load
Current
-
10
8.5
Undervoltage Lockout
OUTPUT STATIC
Voltage
Turn-On
-
11
Vout = Vin – (lin x RDC)
V
A
1
0
0
-
-
5.5
Current
1
100
W
Power
OUTPUT DYNAMIC
Output Voltage Slope, Vin=0 V to 28 V
Turn-On, Vin = 0 V to 28 V
-
-
-
4
8.7
-
11
13
50
V/ms
mSec
mVpk
Delay
Overshoot
GENERAL
DC Resistance
-
-
35
-
80
mΩ
2
250
μF
Capacitive Load
2
-
100
2400
-
-
-
2.42
W
MΩ
pF
MHrs
g
Power Dissipation
Isolation
500 V DC, Tcase = 25 °C
Pin to Case
SF @ Tcase = 55 °C
-
4200
-
Capacitance
MTBF (MIL-HDBK-217F)
Weight
3300
7.867
-
-
16
1. Derate linearly to 0 at 135 °C.
2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified.
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Page 3
SVCL28 Series
3.2 PERFORMANCE SPECIFICATIONS (CONTINUED)
Tcase = -55 °C to +125 °C, VIN = +28 V ± 5%, Full Load, Cout = 100μF Unless Otherwise Specified
SVCL2811S
Parameter
INPUT
Conditions
Min
Typ
Max
Units
Voltage
Continuous
11
-
28
-
50
80
V
V
2
Transient, 1 sec
Inrush Current
Peak, Cout = 100μF
-
-
1.7
8.5
14
Apk
Apk
mA
V
2
-
-
Peak, Cout = 500μF
No Load
Current
-
10
8.5
Undervoltage Lockout
OUTPUT STATIC
Voltage
Turn-On
-
11
Vout = Vin – (Iin x Rdc)
V
A
1
0
-
-
11
Current
1
0
200
W
Power
OUTPUT DYNAMIC
Output Voltage Slope, Vin=0 V to 28 V
Turn-On, Vin = 0 V to 28 V
-
-
-
4
8.7
-
11
13
50
V/ms
mSec
mVpk
-
Delay
Overshoot
GENERAL
DC Resistance
Capacitive Load2
Power Dissipation2
Isolation
Capacitance
MTBF (MIL-HDBK-217F)
Weight
-
-
30
-
-
-
3300
4.984
-
70
500
8.5
-
4200
-
mΩ
μF
W
MΩ
pF
MHrs
g
-
100
2400
-
500 V DC, Tcase = 25 °C
Pin to Case
SF @ Tcase = 55 °C
-
16
1. Derate linearly to 0 at 135 °C.
2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified.
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SVCL28 – 3.0
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Page 4
SVCL28 Series
4.0 PERFORMANCE CURVES
4.1.1 SVCL285R5S Vin, lin during turn-on at 28V with
4.1.2 SVCL285R5S Vin, Vout, Inhibit Out during turn-on at
28V
DVME28, Cout=100μF and 1x SVFL2800S at full load
4.1.3 SVCL285R5S Vin, Vout, lin during turn-on at 28V,
Cout=250µF max
4.1.4 Output Voltage vs. Input Voltage
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SVCL28 Series
4.0 PERFORMANCE CURVES (CONTINUED)
4.2.1 SVCL2811S Vin, lin during turn-on at 28V with DVME28, 4.2.2 SVCL2811S Vin, Vout, Inhibit Out during turn-on at
Cout=100μF and 2x SVFL2800S at full load
28V
4.2.3 SVCL2811S Vin, Vout, lin during turn-on at 28V,
Cout=500µF
4.2.4 Output Voltage vs. Input Voltage
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SVCL28 Series
5.0 MECHANICAL OUTLINES AND PINOUT
Standard Package Option:
Pin Function
Pin Function
Pin Function
1
2
3
+VIN
COM
NC
4
5
6
NC
7
8
9
COM
NC
+VOUT
CASE
INH OUT
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SVCL28 Series
6.0 TECHNICAL NOTES
Please note that many of these functions are also demonstrated in detail on the VPT website in the
form of technical video labs.
6.1 GENERAL INFORMATION
6.1.1 Topology Description
The SVCL2800S Series utilizes series MOSFETs between the +Vin and +Vout pins of the device.
The internal control circuitry drives the MOSFET gates in order to limit the ramp rate of the device output voltage. This controlled ramp
rate limits the peak current that is drawn from the system power bus while charging the capacitors in downstream EMI filters, DC-DC
converter input filters and any other discrete capacitors. These are located between the SVCL and the input of any downstream DC-DC
converters when the bus is energized. After the output voltage is within regulation, the series MOSFETs are fully enhanced, providing a
low steady-state on-resistance.
6.1.2 External Components
The SVCL2800S Series is designed to operate stand-alone in most applications. It does not require any external components for proper
operation or to meet the datasheet specifications. It is recommended to add the filter components Rf (100 Ω) and Cf (0.1 µF) shown in
the figure below when operated in an environment exposed to heavy ions. This will prevent potential single event transients (SET) on
the Inhibit Out pin from interfering with the operation of any DC-DC converters connected to this pin.
6.1.3 Using Inh Out Pin for Source Impedance Control
The performance of a DC-DC converter can be negatively impacted by a high source impedance. If any downstream DC-DC converters
are enabled while the SVCL28 is ramping up the output voltage, the inrush-limiting MOSFETs inside the SVCL28 will present a very
high source impedance to the downstream DC-DC converter. To mitigate potential performance issues, it is recommended to use the
INH OUT function of the SVCL28 in order to drive the INH pins of downstream DC-DC converters. This will keep the downstream
DC-DC converters turned off through the duration of the SVL28 startup and release Inhibit only after the controlled inrush transient has
completed and the MOSFETs have been fully enhanced.
6.1.4 Output Capacitance Limitations
Since the current limiter operates by slowly turning on the series MOSFETs, these devices are operated in the linear region during the
output ramp-up time. For this reason it is important to limit the total capacitance that the device must charge to the Max Load
Capacitance specification located in section 3.2, to avoid violating the series MOSFET Safe Operating Area (SOA). This total includes
the capacitances in the down-stream EMI filters, DC-DC converter input filters and any discrete capacitors on the bus between the
SVCL28 and the downstream DC-DC converters. Note that any capacitors on the output of down-stream VPT DC-DC converters do
not need to be included in the total. The converters do not start until after the current limiter has ramped up the output voltage and the
INH OUT pin goes to a high impedance state. In addition, all VPT DC-DC converters have a well-controlled soft start feature that limits
the rate of rise of the converter output voltage, limiting the charging current to the output capacitors.
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SVCL28 Series
6.2 FUNCTION DESCRIPTIONS
6.2.1 INH OUT Control Pin
The INH OUT (inhibit output) pin is designed to drive the inhibit (INH) pins of VPT DC-DC converters. When connected to the INH pins
of all downstream DC-DC converters, the SVCL28 will hold the converters in the inhibited condition while the current limiter output
voltage ramps up. An internal, open collector bipolar junction transistor pulls down the inhibit input pins during the current limiter ramp
up time, releasing them once the ramp up is complete. This eliminates the need for external inhibit circuitry and prevents the converters
from exhibiting abnormal startup behavior.
6.3 PROTECTION FEATURES
6.3.1 Input Undervoltage Lockout
The SVCL2800S Series provides input undervoltage lockout protection. For input voltages below the turn-on voltage, the current limiter
will remain off with the +VOUT disconnected from the +Vin by the series MOSFETs, drawing minimal current from the source. When
the input voltage exceeds the turn-on voltage, the current limiter will begin to ramp up the output voltage.
6.4 THERMAL CONSIDERATIONS
The SVCL2800S Series is rated for full power operation at 125 °C. Operation above 125 °C is allowed at reduced power. Specifically,
the output power should be derated linearly from full power at 125 °C to half power at 130 °C and to zero power at 135 °C. The
operating temperature of the current limiter is specified on the baseplate of the converter. The current limiter is designed to be
conduction-cooled, with the baseplate mounted to a heat sink, chassis, PCB or other thermal surface. The internal power dissipating
components are mounted to the baseplate of the converter and all heat flow is through the baseplate and mounting flanges. The lid of
the converter does not provide a good thermal path.
The hybrid current limiter contains many semiconductor components. The maximum temperature rise from junction to case is
4 °C at full rated output power.
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SVCL28 Series
6.5 RADIATION HARDNESS ASSURANCE
VPT takes a conservative approach to radiation testing to ensure product performance in a space environment. VPT’s DLA-approved
Radiation Hardness Assurance (RHA) plan documents VPT’s processes and procedures for guaranteeing the performance of VPT
products under various environmental conditions in space including Total Ionizing Dose (TID) and Single-Event Effects (SEE).
Additionally, Enhanced Low Dose-Rate Sensitivity (ELDRS) effects are considered for all bipolar ICs used in the hybrid. Hardness is
guaranteed by a combination of both hybrid-level characterization and Radiation Lot Acceptance Testing (RLAT) of all sensitive
semiconductor piece-parts used within the hybrid.
6.5.1 Radiation Test and Performance Levels
Hybrid-Level
Characterization
Radiation Environment
Piece Part RLAT
High Dose Rate (HDR)
100 krad(Si)
1100 krad(Si)
Not applicable
Not applicable
100 krad(Si)
Total Ionizing Dose
(TID)
Low Dose Rate (LDR)
100 krad(Si)
Destructive (SEB, SEGR, SEL)
Non-Destructive (SET, SEU)
≥ 85 MeV/mg/cm2
≥ 85 MeV/mg/cm2
Single-Event Effects
(SEE)
Displacement Damage
(DD)
1x1012 n/cm2
Not applicable
1. Piece-part LDR screening performed only on potentially ELDRS parts (bipolar ICs).
6.5.2 RHA Plan Summary
Test
RHA Plan for SVL Series Isolated DC-DC Converters
Sensitive semiconductor components undergo RLAT to 100 krad(Si) per
MIL-STD-883 Method 1019. Converters are characterized to 100 krad(Si).
Total Ionizing Dose (TID):
All bipolar linear ICs are characterized for ELDRS and tested in accordance
with MIL-STD-883 test method 1019 section 3.13
Enhanced Low Dose Rate Sensitivity (ELDRS):
Converters are characterized to LET ≥ 85 MeV/mg/cm2 for both catastrophic
events (SEL, SEB, SEGR) and functional interrupts (SEFI) under heavy ion
exposure. Converters are also characterized for cross-section and magnitude
of output transients (SET) for at least 3 different LET levels.
Single Event Effects (SEE):
All production lots of sensitive semiconductor components undergo RLAT for
TID at HDR and/or LDR as appropriate per part type.
Sensitive semiconductor components undergo RLAT to 1x1012 n/cm2 per
MIL-STD-883 Method 1017.
Radiation Lot Acceptance Testing (RLAT):
Displacement Damage (DD):
6.5.3 RHA Designators available on SMD
The SVCL28 series converters are available on SMD with RHA level R. See section 8.0 for full SMD number information.
6.5.4 Supporting Documentation Available (Contact Sales)
•
•
Radiation Hardness Assurance Plan:
Worst-Case Analysis Report:
DLA-approved RHA plan covering TID, SEE, and ELDRS
Detailed worst-case analysis including electrical stress/derating limits and
guaranteed circuit performance post-radiation and end of life
•
Radiation Test Summary Report:
Overview of piece-part RLAT and hybrid characterization for all guaranteed
environments. Also includes SEE cross-section data.
•
•
Reliability Report:
MTBF report based on MIL-HDBK-217 reliability calculations.
Component temperature rise analysis and measurement results.
Thermal Analysis Report:
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SVCL28 Series
7.0 ENVIRONMENTAL SCREENING
100% tested per MIL-STD-883 as referenced to MIL-PRF-38534.
Contact sales for more information concerning additional environmental screening and testing options. VPT Inc. reserves the right to
ship higher screened or SMD products to meet orders for lower screening levels at our sole discretion unless specifically forbidden by
customer contract.
/EM
/H+
/K
(Engineering Model)
Non-QML1,6
MIL-STD-883 Test
Method, Condition
Test
(Class H + PIND)
(Class K)
Non-Destructive
Bond Pull
2
2
TM2023
●
●
●
●
●
TM2010, TM2017, TM2032
(MIL-STD-750, TM2072,
TM2073)
Internal Visual
●
●
TM1010, Condition C
-65 °C to 150 °C, Ambient
Temperature
Cycling
●
●
Constant
Acceleration
TM2001, 3000g, Y1
Direction
●
●
●
3
2
TM2020, Condition A
25 °C
PIND
●
Pre Burn-In
Electrical
TM1015, 320 hrs.,
125 °C, Case Typ
●
TM1015, 160 hrs.,
125 °C, Case Typ
Burn-In
●
●
24 hrs., 125 °C, Case Typ
●
●
MIL-PRF-38534, Group A
Subgroups 1-6
●
4
-55 °C, 25 °C, 125 °C
Final Electrical
MIL-PRF-38534, Group A
Subgroups 1 and 4
25 °C
TM1014, Fine Leak,
Condition A2 or B1
●
●
●
●
Hermeticity
(Seal)
TM1014, Gross Leak,
Condition C1 or B2
Gross Leak, Dip (1x10-3)
TM2012
●
●
5
●
●
Radiography
External Visual
TM2009
●
1. Non-QML products may not meet all requirements of MIL-PRF-38534
2. Not required per MIL-PRF-38534. Test performed for additional product quality
assurance
4. 100% R&R testing with all test data included in product shipment
5. Radiographic test Certificate of Compliance and film(s) or data CD included in
product shipment
3. PIND test Certificate of Compliance included in product shipment
6. Engineering models utilize only the screening specified and are not considered
compliant for flight use
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SVCL28 Series
8.0 STANDARD MICROCIRCUIT DRAWING (SMD) NUMBERS
Standard Microcircuit SVCL2800S Series
Drawing Number Similar Part Number
5962R1621601HXC
5962R1621601HXA
5962R1621601KXC
5962R1621601KXA
SVCL285R5S/H+
SVCL285R5S/H+-E
SVCL285R5S/K
SVCL285R5S/K-E
5962R1621602HXC
5962R1621602HXA
5962R1621602KXC
5962R1621602KXA
SVCL2811S/H+
SVCL2811S/H+-E
SVCL2811S/K
SVCL2811S/K-E
Do not use the SVCL2800S Series similar part number for SMD product acquisition. It is listed for reference only. For exact
specifications for the SMD product, refer to the SMD drawing. SMDs can be downloaded from the DLA Land and Maritime (Previously
known as DSCC) website at https://landandmaritimeapps.dla.mil/programs/defaultapps.asp. The SMD number listed above represents
the Federal Stock Class, Device Type, Device Class Designator, Case Outline, Lead Finish and RHA Designator (where applicable).
Please reference the SMD for other screening levels, lead finishes, and radiation levels. All SMD products are marked with a “Q” on the
cover as specified by the QML certification mark requirement of MIL-PRF-38534.
9.0 ORDERING INFORMATION
11
SVCL
28
S
/K
-
XXX
1
2
3
4
5
6
(1)
Product
Series
(2)
(3)
(4)
(5)
(6)
Nominal Input
Voltage
Output Current
Number of
Outputs
Screening Code1,2
Additional
Screening
Code
SVCL
28 28 Volts
5R5
11
5.5 Amps
11 Amps
S Single
/EM Engineering Model
/H+ Class H + PIND
/K Class K
Contact Sales
1.
2.
Contact the VPT Inc. Sales Department for availability of Class H (/H) or Class K (/K) qualified products
VPT Inc. reserves the right to ship higher screened or DSCC Drawing products to meet lower screened orders at our sole discretion unless specifically forbidden
by customer contract
“(Customer Name) acknowledges that the /EM unit listed in this line item is not permitted for flight use and will be used for Engineering characterization only”
Please contact your sales representative or the VPT Inc. Sales Department for more information concerning additional environmental
screening and testing, different input voltage, output voltage, power requirements, source inspection, and/or special element evaluation
for space or other higher quality applications.
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SVCL28 Series
10.0 CONTACT INFORMATION
To request a quotation or place orders please contact your sales representative or the VPT, Inc. Sales Department at:
Phone:
Fax:
(425) 353-3010
(425) 353-4030
E-mail:
vptsales@vptpower.com
All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or
omissions. The products or specifications contained herein are subject to change without notice.
11.0 ADDITIONAL INFORMATION
Visit the VPT website for additional technical resources, including:
Product Catalogs
Application Notes and White Papers
Technical Video Labs
Additional Products For Avionics/Military,
Hi-Rel COTS, and Space Applications
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