LTC2931IF#TRPBF

Power Supply Controllers, Monitors Overview

The LTC2931IF#TRPBF is a supervisory circuit manufactured by Analog Devices Inc., designed for configurable six-input supply monitoring with an adjustable reset output and watchdog timer. It operates within a supply voltage range of 2.7V to 5.5V, drawing a typical operating supply current of 52µA. The device features a low-power architecture suitable for battery-operated systems and includes a programmable watchdog with a timeout period selectable via external components. It is housed in an 8-lead MSOP package and operates over an industrial temperature range of -40°C to +85°C.

Power Supply Controllers, Monitors Feature Summary

• Configurable six-input supply monitor for comprehensive system health tracking
• Integrated watchdog timer with externally adjustable timeout period
• Adjustable reset output with selectable delay and polarity options

Power Supply Controllers, Monitors Applications

• Industrial control systems requiring multi-voltage supervision
• Portable electronic devices with strict power management needs
• Embedded systems utilizing multiple logic supply rails

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix 'IF' indicates the industrial temperature grade (-40°C to +85°C) and the 'TRPBF' denotes tape-and-reel packaging without halogens. Confirm availability status as distribution channels may list limited stock or end-of-life notices. Ensure the ordering part number matches the exact pinout and electrical specifications required for your design before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing systems that require monitoring of up to six distinct voltage rails simultaneously. It is appropriate for applications needing a combined solution for supply supervision and watchdog functionality in a compact footprint. Consider the 52µA quiescent current when optimizing for low-power standby modes in portable or battery-backed equipment.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2931 series of supervisory circuits from Analog Devices. The series provides flexible monitoring solutions for complex digital systems. The IF variant specifically targets industrial environments, offering extended temperature performance compared to commercial grades. It complements other PMIC offerings by providing dedicated fault detection capabilities.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts if considering alternative suppliers, as pinouts and electrical characteristics may differ significantly across manufacturers.