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| 型号： | SVFL283R3S/H+ |
| 元件分类： | 电源模块 |
| 英文描述： | 1-OUTPUT 66 W DC-DC REG PWR SUPPLY MODULE |
| 文件页数： | 1/17页 |
| 文件大小： | 396K |
| 代理商： | SVFL283R3S/H+ |
SVFL2800S Series
DS2X010B
11314 4th Avenue
West, Suite 206
Everett, WA 98204
http://www.vpt-inc.com
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vpt-inc.com
1
HIGH RELIABILITY HYBRID
RADIATION TOLERANT DC-DC CONVERTERS
DESCRIPTION
The SVFL series of high reliability DC-DC converters is
operable over the full military (-55 °C to +125 °C)
temperature range with no power derating. Paramount to
the SVFL series is a magnetic feedback circuit that is
radiation immune. Operating at a nominal fixed frequency
of 500 kHz, these regulated, isolated units utilize well
controlled undervoltage lockout circuitry to eliminate slow
start-up problems. The current sharing function allows a
maximum of five units to be connected in parallel to boost
the total output power to 5 times. The output voltage is
trimmable up to +10% or down –20%. The SVFL series
has been characterized and tested for TID (Total Ionizing
Dose) at HDR (High Dose Rate) and LDR (Low Dose Rate
– ELDRS) per VPT’s RHA plan. The SVFL series has
also been characterized for SEE (Single Event Effects).
VPT's certified radiation program per MIL-PRF-38534,
Appendix G is currently under review by DSCC. Please
contact DSCC at 614-692-0585 for details. This
characterization and testing is performed at the critical
semiconductor component piece-part level (RLAT) from
traceable semiconductor lots as well as on the SVFL
series hybrid converter level produced from the same
traceable semiconductor lots evaluated during RLAT.
These converters are designed and manufactured in a
facility qualified to ISO9001 and certified to MIL-PRF-
38534 Class H and Class K and MIL-STD-883.
This product may incorporate one or more of the following
U.S. patents:
5,784,266
5,790,389
5,963,438
5,999,433
6,005,780
6,084,792
6,118,673
FEATURES
High Reliability
Parallel Up to 5 Units With Current Sharing
Output Voltage Trim Up +10% or Down –20%
Wide Input Voltage Range: 16 to 40 Volts per MIL-
STD-704
Up to 120 Watts Output Power
Radiation Immune Magnetic Feedback Circuit
NO Use of Optoisolators
Undervoltage Lockout
Indefinite Short Circuit Protection
Current Limit Protection
High Input Transient Voltage: 50 Volts for 1 sec per
MIL-STD-704A
Precision Seam Welded Hermetic Package
High Power Density: > 80 W/in
3
Custom Modified Versions May Be Available
Additional Environmental Screening Available
Meets MIL-STD-461C and MIL-STD-461D EMC
Requirements When Used With a DVME28 EMI
Filter
MIL-PRF-38534 Element Evaluated Components
Utilized
Characterized and assured to 30krads(Si), per
VPT’s RHA plan specified per MIL-PRF-38534,
Appendix G, Level P with 2X margin. After radiation
exposure, converter testing is performed at 25°C per
standard datasheet limits.
Characterized to 44 MeV-cm2/mg with minor
transients only; no dropouts, shutdowns, latch up or
burn out.
Critical semiconductor component piece-parts and
assured converter products tested at an HDR of 80
rads(Si)/sec and an LDR of 8 mrads(Si)/sec.
Figure 1 – SVFL2800S DC-DC Converter (Exact marking may differ from that shown)
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