ET9650M1

Overview

The ET9650M1 is an overvoltage protection IC designed to safeguard low-voltage systems against voltage faults. It features a typical on-resistance of 15mΩ and supports a VIN operating range from 2.5V to 28V. The device provides surge immunity up to ±100V and includes an internal over-voltage detection mechanism. It offers 6A continuous current capability and utilizes an external switch technology for effective power management.

Feature Summary

• Ultra-low on-resistance internal FET minimizes power loss during normal operation
• High surge immunity protects sensitive circuits from transient voltage spikes
• Integrated over-voltage detection ensures rapid response to fault conditions

Applications

• USB port protection
• Low-voltage system fault protection
• Surge suppression in consumer electronics

Procurement Notes

Verify the specific package variant, such as CSP12 with 0.4mm pitch, against your PCB footprint requirements. Confirm that the 15mΩ typical resistance meets your thermal and efficiency targets. Ensure the 28V maximum input rating aligns with your system's supply voltage. Check for any specific handling instructions related to the WLCSP surface mount package.

Selection Notes

Select this component when ultra-low conduction loss is critical for system efficiency. It is suitable for applications requiring robust surge protection alongside high continuous current handling. Consider the 2.5V to 28V operating range to ensure compatibility with various bus voltages. The integrated FLAG feature aids in monitoring protection status without additional external components.

Part Context

This part belongs to ETEK Microelectronics' series of overvoltage protection ICs. It shares design similarities with models like the ET9640 but offers specific electrical characteristics tailored for different current and voltage thresholds. The product line focuses on providing reliable protection for modern electronic interfaces.

Replacement Considerations

The ET9640 is a documented substitute within the same product family. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure the alternative part meets the required surge immunity and current capabilities for the specific application.