Rad-Hard Isolated DC to DC Converters
Overview
The SA series of DC-DC converters are available in both triple and single outputs. They are designed and qualified for the rigors of space including characterization for both Total Ionizing Dose (TID) and Single Event Effects (SEE). Operating at a fixed frequency of 220 kHz, the SA family of parts can be externally synced with other frequency sources. To ensure precise voltage regulation at the load each output is individually adjustable +/- 10% through a precise voltage reference of less than 1%.
The SA50-120 family of parts is ideal for use on the International Space Station (ISS) supporting 120Vin. AN-101 will assist the user in certifying their design. The single output version of the SA50-120 family can be tied in parallel to provide additional power.
Contact Microsemi sales for more information on these options as well as customization to meet your program power DC to DC requirements.
Selection Table
| Part Number | Pwr (W) | Vin (V) |
Vout1 (V) |
Vout2 (V) |
Vout3 (V) |
Sync | Inhib. | Paral. | Rem. Sense | Trim | Rad Level1 |
| SA50-120-12S-B-P | 50 | 120 | 12 | Y | Y | Y | Y | Y | - | ||
| SA50-120-12S-B-T | 50 | 120 | 12 | Y | Y | Y | Y | Y | T | ||
| SA50-120-15S-B-H | 50 | 120 | 15 | Y | Y | Y | Y | Y | H | ||
| SA50-120-15S-B-P | 50 | 120 | 15 | Y | Y | Y | Y | Y | - | ||
| SA50-120-28S-B-H | 50 | 120 | 28 | Y | Y | Y | Y | Y | H | ||
| SA50-120-28S-B-P | 50 | 120 | 28 | Y | Y | Y | Y | Y | - | ||
| SA50-120-3R3-14T-B-P | 50 | 120 | 3.3 | +14 | -14 | Y | Y | N | N | N | - |
| SA50-120-3R3-14T-B-TX1 | 50 | 120 | 3.3 | +14 | -14 | Y | Y | N | N | N | T |
| SA50-120-5-12T-A-H | 50 | 120 | 5 | +12 | -12 | Y | Y | N | N | N | H |
| SA50-120-5-12T-A-P | 50 | 120 | 5 | +12 | -12 | Y | Y | N | N | N | - |
| SA50-120-5-15T-A-H | 50 | 120 | 5 | +15 | -15 | Y | Y | N | N | N | H |
| SA50-120-5-15T-A-P | 50 | 120 | 5 | +15 | -15 | Y | Y | N | N | N | - |
| SA50-120-5-15T-A-T | 50 | 120 | 5 | +15 | -15 | Y | Y | N | N | N | T |
| Note 1: Radiation Level - "H" >100Krad (TID), >80 MeV•cm2 /mg (SEE); "T" >100Krad (TID), >35 MeV•cm2 /mg (SEE); "P" prototype version | |||||||||||
| These modules are easily modified for a nominal NRE. Modifications include: Input Voltage, Output Voltages, package mounting style. | |||||||||||
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