This report presents the effect of neutron displacement damage (NDD) on the TL1431-SP device. The results show that all devices were fully functional and within production test limits after having been irradiated up to 1 × 1012 n/cm2. A sample size of nine units were exposed per MIL-STD-883, Method 1017 for Neutron Irradiation, and three additional devices were used as control units. Electrical testing was performed before and after neutron irradiation using the production test program for the TL1431-SP.
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The TL1431-SP is a precision programmable reference with specified thermal stability over automotive, commercial, and military temperature ranges. The output voltage can be set to any value between VI(ref) (approximately 2.5 V) and 36 V with two external resistors. This device has a typical output impedance of 0.2 Ω. Active output circuitry provides a very sharp turnon characteristic, making the device an excellent replacement for Zener diodes and other types of references in applications such as onboard regulation, adjustable power supplies, and switching power supplies.
| NDD Details | |
|---|---|
| TI Part Number | TL1431-SP |
| Device Name | 5962R9962001VHA |
| Device Function | Programmable reference |
| Technology | JI SLM |
| Assembly Lot Number | 2006815MTT |
| Unbiased Quantity Tested | 9 |
| Exposure Facility | VPT Rad |
| Neutron Fluence (1-MeV equivalent) | 1.0 × 1012, 5.0 × 1012, 1.0 × 1013 n/cm2 |
| Irradiation Temperature | Room temperature |
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