The SVLHF Series of space qualified DC-DC converters is specifically designed for the harsh radiation environment of space applications. Performance is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVLHF 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 L. Characterization is performed at both the component level and at the SVLHF Series hybrid converter level.
Radiation-hardened to TID levels of 60 krad(Si) and SEE to 85 MeV/mg/cm2, the SVLHF Series of DC-DC converters is suited for use in many low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs.
Features:
- Output Voltage: +3.3 V / 10W, +5 V / 15W, +12 V / 20W, +15 V / 20W,+28 V / 20W
- Wide input voltage range: 30 V to 60 V plus 80 V transient
- Continuous operation over full military temperature range of-55 °C to +125 °C with no power derating
- Very low output noise
- Radiation immune magnetic feedback circuit
- No use of optoisolators
- Undervoltage lockout
- Current limit protection / short circuit protection
Space-Level Characterizations:
- Guaranteed TID performance to 60 krad(Si) including LDR
- SEE performance to 85 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude
- Worst-case analysis, stress, radiation, reliability reports available
Compliances and Certifications:
- Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD # TBD
- 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
Summary Data
For complete specifications, please see the official datasheet.
To provide you with the most accurate data for the actual performance of this product once deployed, please note that the electrical performance data provided below is at Tcase = -55° C to 125° C, Vin= +28V +-5%, full load, unless otherwise specified.
