MAX14731EWV+

Overview

The MAX14731EWV+ is a dual-input, bidirectional overvoltage protector designed for robust power management. It features an internal clamp capable of protecting against surges up to 100V. The device automatically selects the active input source and includes reverse bias-blocking capabilities, ensuring that voltage applied to the output does not back-feed when disabled. Operating with a supply voltage range of 3V to 28V, it draws a typical supply current of 360µA. The component is housed in a 30-WLP (2.54x2.2) package and supports surface mount installation.

Feature Summary

• Dual-input architecture with automatic source selection
• Internal clamp provides surge protection up to 100V
• Reverse bias-blocking prevents output-to-input back-feed

Applications

• Overvoltage protection circuits
• Power management systems requiring dual input redundancy
• Surge protection applications

Procurement Notes

Verify the exact suffix (+) indicates lead-free status per manufacturer standards. Confirm the 30-WLP package dimensions match the target PCB footprint. Ensure the 100V surge rating aligns with the specific transient requirements of the application environment. Cross-reference the pinout diagram with the official datasheet to prevent wiring errors during integration.

Selection Notes

Select this component when dual-input redundancy and high-voltage surge tolerance are required. The bidirectional nature and reverse blocking feature make it suitable for complex power topologies. Consider the 360µA supply current for low-power efficiency needs. Verify that the 3V to 28V operating range covers all expected supply conditions in the design.

Part Context

This part belongs to the Maxim Integrated overvoltage protector family, now under Analog Devices. It addresses the need for reliable power switching and protection in compact form factors. The WLP package allows for space-constrained designs while maintaining high performance. It serves as a critical interface between power sources and sensitive downstream loads.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official cross-reference tools for compatible alternatives. Ensure any replacement maintains the dual-input, bidirectional functionality and 100V surge rating.

FAQ

How does the device handle reverse bias?

The MAX14731EWV+ features reverse bias-blocking capabilities, preventing voltage applied to the OUT terminal from back-feeding into the input sources when the device is disabled.

What is the maximum surge protection level?

The internal clamp protects against surges up to 100V.