MAX16127TC+T

Overview

The MAX16127TC+T is a supervisory circuit designed for load-dump and reverse-voltage protection. It operates with a supply voltage range of 3V to 30V and monitors input voltages from -36V to 90V. The device features an adjustable reset threshold between 1.2V and 1.25V, with a fixed reset delay time of 150 ms. It utilizes a TQFN-12 package (3.1 x 3.1 x 0.75mm) and supports surface mount installation. The component functions within an operating temperature range of -40°C to +125°C and draws a supply current of 224µA.

Feature Summary

• Provides integrated protection against overvoltage, reverse voltage, and high-voltage transient pulses using a built-in charge pump.
• Features an open-drain active-low reset output with an adjustable threshold voltage for precise system monitoring.
• Supports wide input voltage monitoring capabilities up to 90V while maintaining low standby current consumption.

Applications

• Automotive electronic systems requiring robust power supply supervision
• Protection circuits for microcontrollers and memory devices in harsh electrical environments
• Industrial control units exposed to load dump events

Procurement Notes

Verify availability status carefully as this part may be subject to limited supply or factory special orders. Confirm the exact suffix (+T vs /V+T) matches your bill of materials, as packaging variations exist. Ensure compatibility with your PCB footprint for the 12-WFQFN exposed pad package. Check for recent lifecycle notices regarding obsolescence or last-time buys before finalizing procurement plans.

Selection Notes

Select this component when designing systems that require simultaneous reverse polarity and overvoltage protection without external discrete components. The adjustable threshold allows customization for specific logic levels. Consider the 150ms reset delay duration relative to your system's startup requirements. The wide operating temperature range makes it suitable for automotive and industrial applications where thermal extremes are common.

Part Context

This device belongs to the MAX16126/MAX16127 family of supervisory circuits manufactured by Analog Devices/Maxim Integrated. These parts are specifically engineered to protect sensitive electronics from harmful input voltage conditions. The family shares similar functional architectures but may differ in pin counts or specific voltage ranges. This model represents the 12-pin variant optimized for compact surface-mount designs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if the MAX16126 series offers compatible functionality if pinout differences are acceptable. Consult manufacturer cross-reference tools for updated alternatives due to potential lifecycle changes.