AAHS298B-07-4020A-V

Overview

The AAHS298B-07-4020A-V is a radiation-tolerant octal source driver manufactured by Microsemi Corporation. It features eight P-channel high-side outputs designed for power distribution in harsh environments. The device operates within a temperature range of -55°C to 125°C (TA). It provides robust performance with radiation tolerance up to 100 kRad total dose, ensuring reliability in space applications.

Feature Summary

• Radiation tolerant design capable of withstanding 100 kRad total ionizing dose
• Eight independent high-side P-channel output drivers
• Extended operating temperature range suitable for extreme environments
• Screened to meet Class S and Class B requirements

Applications

• Command and data handling power subsystems
• Spacecraft control systems
• Harsh environment power distribution networks

Procurement Notes

Verify the specific suffix 'V' against official Microsemi documentation to confirm exact screening levels and radiation tolerance specifications. Ensure compatibility with system voltage requirements and thermal management constraints before procurement. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when radiation hardness is critical for mission success. Consider the eight-channel configuration for integrated power switching needs. Evaluate thermal dissipation capabilities given the wide operating temperature range. Confirm that the high-side P-channel architecture aligns with the target load interface requirements.

Part Context

This part belongs to the AAHS298B family of radiation-tolerant octal drivers. It is engineered for aerospace and defense applications where electronic failure due to radiation exposure is a primary concern. The series supports reliable operation in low earth orbit and deep space missions.

Replacement Considerations

Check for direct substitutes within the AAHS298B series, such as variants with different screening classes or suffixes. Verify pinout compatibility and electrical characteristics before substituting. Consult Microsemi for updated alternatives if the current part is discontinued.

FAQ

What is the maximum radiation tolerance of the AAHS298B-07-4020A-V?

The device is rated for radiation tolerance up to 100 kRad total ionizing dose.

How many output channels does this driver provide?

It provides eight independent high-side output channels.