SVHF2800S SERIES
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vpr Power Your Critical Mission Today A SVHF2800S SERIES o-oSPACE QUALIFIED HYBRID DC-DC CONVERTERS Models Available Input: 15 V to 50 V continuous, 80 V transient 20 W, single output of 2.5 V, 3.3 V, 5 V, 5.2 V, 5.7 V, 12 V, 15 V Qualified to MIL-PRF-38534 Class H and Class K 1.0 DESCRIPTION The SVHF 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 SVHF 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 P. Characterization is performed at both the component level and at the SVHF Series hybrid converter level. The SVHF Series of DC-DC converters is radiation tolerant and suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs. 1.1 FEATURES • Up to 20 W output power • Wide input voltage range: 15 V to 50 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 1.2 SPACE LEVEL CHARACTERIZATIONS • Guaranteed TID performance to 30 krad(Si) including ELDRS • SEE performance to 44 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude • Worst-case analysis, stress, radiation, reliability reports available 1.3 MANUFACTURING AND COMPLIANCE • Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD # 5962-11218 • 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: 2.00” x 1.130” x 0.355” • Max weight: 28 g • Industry standard pinout • Precision projection-welded hermetic metal case • Flanged and Non-flanged versions available 1.5 SIMILAR PRODUCTS AND ACCESSORIES • SVHF 20 W dual output DC-DC converter • SVRHF 15 W space qualified DC-DC converter, 100 krad(Si) • Custom versions available • EMI filters • Non-isolated, space qualified point of load converters • Use with Thermal Pad TP-002

SVHF2800S Series 2.0 DIAGRAMS 2.1 BLOCK DIAGRAM D1 UNDER VOLTAGE SHUTDOWN PRIMARY HOUSEKEEPING SUPPLY VOLTAGE AND CURRENT AMPLIFIERS MAGNETIC FEEDBACK SECONDARY HOUSEKEEPING SUPPLY 2.2 CONNECTION DIAGRAM DVMH28 EMI FILTER 1 3.0 SPECIFICATIONS 3.1 ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings Input Voltage (Continuous): Input Voltage (Transient, 1 second): ESD Rating per MIL-PRF-38534: Sales Information Operating Temperature (Full Load): Storage Temperature: Lead Solder Temperature (10 seconds):

vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified Parameter Conditions Min Typ Max Min Typ Max Units 1. Time for output voltage to settle within 1 % of steady-state value. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted. Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web:...

vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified Parameter Conditions Min Typ Max Min Typ Max Units 1. Time for output voltage to settle within 1 % of steady-state value. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted. Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web:...

vpr Power Your Critical Mission Today O- Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified Parameter Conditions Min Typ Max Min Typ Max Units 1. Time for output voltage to settle within 1 % of steady-state value. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted. Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web:...

vpr Power Your Critical Mission Today O- Parameter Conditions Min Typ Max Units 1. Time for output voltage to settle within 1 % of steady-state value. 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified. 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted. Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web: www.vptpower.com

SVHF2800S Series 4.0 PERFORMANCE CURVES 4.1.1 SVHF282R5S Efficiency (Typical, 25 °C) Sales Information

SVHF2800S Series 4.1.5 SVHF285R7S Efficiency (Typical, 25 °C) Sales Information

vpr Power Your Critical Mission Today O- 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Materials: Case (Steel, gold over nickel plated); Cover (Steel, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030E-mail: vptsales@vptpower.com Web: www.vptpower.com SVHF2800S - 8.0 Page 9