5962-8670406VXA

Overview

The Texas Instruments 5962-8670406VXA is a radiation-tolerant, QML Class V enhanced PWM controller designed for high-reliability applications. It operates with a maximum input voltage of 30 V and delivers a peak output current of 1 A at a switching frequency up to 500 kHz. The device supports 100% duty cycle operation and utilizes current-mode control architecture. It is housed in a 20-LCCC package measuring 8.89 x 8.89 mm and functions within a temperature range of -55°C to +125°C.

Feature Summary

• Radiation-tolerant construction qualified to QML Class V standards
• Current-mode PWM control with multi-topology support
• Capable of 100% duty cycle operation for flexible regulation

Applications

• Spacecraft power distribution systems
• Satellite onboard power conditioning units
• Military-grade DC-DC converter designs

Procurement Notes

Verify the specific suffix (VXA) matches the required radiation tolerance and package variant. Confirm that the QML Class V qualification meets mission-specific reliability requirements. Ensure compatibility with existing thermal management solutions for the LCCC package. Validate input voltage ranges against system specifications before integration.

Selection Notes

Select this component when radiation hardness is critical for space or high-altitude environments. The 30-V input rating suits standard aerospace bus architectures. Current-mode control offers improved transient response compared to voltage-mode alternatives. Consider the 1-A output limit when sizing passive components for the target load.

Part Context

This part belongs to Texas Instruments' family of radiation-hardened switching controllers. It is specifically engineered for military and aerospace sectors requiring proven reliability under ionizing radiation exposure. The QML Class V designation indicates strict manufacturing and testing protocols beyond commercial standards.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pinout and electrical characteristics carefully if considering alternative radiation-tolerant controllers from other manufacturers.