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Product Detailed Parameters
- Description：IC PWR DRIVER P-CHANNEL 1:1 20SO
- Series：-
- Mfr：Microsemi Corporation
- Package：Tray
- Switch Type：General Purpose
- Number of Outputs：8
- Ratio - Input:Output：1:01
- Output Configuration：High Side
- Output Type：P-Channel
- Interface：Parallel
- Voltage - Load：10V ~ 50V
- Voltage - Supply (Vcc/Vdd)：-
- Current - Output (Max)：2.8A
- Rds On (Typ)：-
- Input Type：Non-Inverting
- Features：-
- Fault Protection：Over Temperature
- Operating Temperature：-55°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Supplier Device Package：20-SOIC
- Package / Case：20-SOIC (0.295", 7.50mm Width)
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Overview
The AAHS298BS-S20B-S is a radiation-tolerant octal power relay driver manufactured by Microsemi Corporation. It features eight P-channel MOSFET outputs designed for high-reliability applications in space environments. The device is screened to meet Class S and Class B requirements, ensuring robust performance under extreme conditions. It operates within a specified temperature range and provides total ionizing dose tolerance up to 100 kRad.
Feature Summary
- Radiation-tolerant design suitable for harsh space environments
- Octal configuration with eight independent P-channel outputs
- Screened to Class S and Class B reliability standards
- High total ionizing dose tolerance for long-duration missions
Applications
- Satellite power distribution systems
- Spacecraft payload switching
- High-reliability industrial control systems requiring radiation hardness
Procurement Notes
Verify the specific suffix (S) indicates the correct screening level and package variant. Confirm export compliance requirements as this product may require additional documentation for shipment from the United States. Ensure the order matches the exact Microsemi part number to avoid compatibility issues with existing designs.
Selection Notes
Select this component when radiation hardness is critical for system longevity. Compare Class S and Class B screening options based on mission duration and risk tolerance. Verify thermal management capabilities align with the application's heat dissipation requirements. Ensure voltage ratings of the P-channel outputs match the load specifications.
Part Context
This part belongs to the AAHS298B family of radiation-tolerant source drivers introduced by Microsemi. These ICs are listed under SMD 5962-15231 with the DLA. The family includes variants such as AAHS298BS-S20B-B and AAHS298BS-S20B-ENGR, differing primarily in screening levels and packaging configurations.
Replacement Considerations
Public confirmed substitute part numbers include AAHS298BS-S20B-B. Verify pinout compatibility and electrical parameters before substitution. Ensure the replacement meets the same radiation tolerance and screening class requirements.
