ET9902

Overview

The ET9902 is a high-voltage, high-current bidirectional load switch manufactured by ETEK Microelectronics. It integrates input overvoltage protection and surge protection capabilities alongside a selectable reverse blocking feature for the output voltage. The device utilizes logic control to facilitate interaction with system controllers and wireless charging receivers, ensuring robust power management in demanding automotive and industrial applications.

Feature Summary

• Bidirectional current flow capability for flexible power routing
• Integrated input overvoltage and surge protection mechanisms
• Selectable reverse blocking function to prevent backflow
• Logic-controlled interface for system controller communication

Applications

• Automotive body control modules
• Wireless charging receiver systems
• High-voltage power distribution networks
• Industrial equipment power management

Procurement Notes

Verify the specific package variant and temperature grade against the official ETEK Microelectronics datasheet prior to ordering. Confirm that the selected component meets the required voltage and current ratings for the target application environment. Ensure compatibility with the system's logic control levels for proper operation of the reverse blocking and protection features.

Selection Notes

Select the ET9902 when bidirectional power handling and integrated surge protection are required within a single component. Consider this part for designs needing active reverse blocking controlled by a logic signal. Evaluate the thermal performance and voltage ratings against the maximum expected system transients to ensure reliable long-term operation.

Part Context

ETEK Microelectronics specializes in power management and interface solutions for automotive and industrial markets. The ET9902 belongs to their portfolio of advanced load switches designed to enhance system reliability. This component addresses the need for compact, protected power switching in modern electronic architectures requiring bidirectional energy flow.

Replacement Considerations

Publicly confirmed substitute part numbers for the ET9902 are not available in the provided documentation. Cross-reference with other high-voltage bidirectional load switches only after verifying pinout, electrical specifications, and functional compatibility through official manufacturer channels.