TPS7H2211MDAPTSEP

Current Regulation/Management Overview

The TPS7H2211MDAPTSEP is a radiation-hardened, single-channel eFuse load switch designed for space applications. It features an integrated N-channel power FET with a maximum on-resistance of 60 mΩ and supports an input voltage range from 4.5 V to 14 V. The device provides a maximum continuous switch current of 3.5 A and includes comprehensive protection mechanisms such as reverse current protection, overvoltage protection, internal fast-trip current limiting, and thermal shutdown. It operates within a military temperature range of -55°C to +125°C.

Current Regulation/Management Feature Summary

• Radiation hardness assurance characterized to 100 krad(Si) total ionizing dose
• Immune to single-event latchup, burnout, and gate rupture up to specified LET levels
• Integrated soft-start functionality with configurable rise time to minimize inrush current
• Low control input threshold compatible with 1.2-V, 1.8-V, 2.5-V, and 3.3-V logic

Current Regulation/Management Applications

• Satellite electrical power systems (EPS)
• Cold sparing power supplies for redundancy
• Power supply sequencing
• Command and data handling units
• Communications payload power distribution

Current Regulation/Management Procurement Notes

Verify the specific suffix 'MDAPTSEP' against the official Texas Instruments datasheet to confirm the exact package type, lead finish, and radiation qualification status. Ensure that the ordering information matches the required military temperature range and that any environmental compliance declarations are consistent with aerospace procurement standards.

Current Regulation/Management Selection Notes

Select this component when designing power trees for radiation-tolerant environments requiring robust fault protection. The low on-resistance minimizes conduction losses, while the configurable soft-start protects downstream components during power-up. Ensure the control logic voltage aligns with the device's low threshold requirements for reliable switching operation.

Current Regulation/Management Part Context

This part belongs to the TPS7H22xx-SP family of radiation-hardened eFuses. These devices are engineered for high-reliability space missions where standard commercial components would fail due to total ionizing dose or single-event effects. The series offers integrated load switching capabilities with enhanced durability compared to non-radiation-hardened alternatives.

Current Regulation/Management Replacement Considerations

Public confirmed substitute part numbers: TPS7H2201MDAPTSEP.