LTC2938IMS#PBF

Power Supply Controllers, Monitors Overview

The LTC2938IMS#PBF is a configurable processor supervisor featuring four independent voltage monitor channels and an integrated watchdog timer. It operates within a supply voltage range of 1 V to 6 V, with a maximum supply current of 80 uA. The device provides adjustable reset and watchdog timeout periods via external capacitors. Voltage thresholds are selectable from sixteen preset combinations or adjustable inputs, maintaining accuracy within ±1.5% over temperature. It utilizes a 12-pin MSOP package and supports commercial temperature ranges.

Power Supply Controllers, Monitors Feature Summary

• Configurable multi-supply monitoring for up to four distinct voltage rails
• Integrated watchdog timer with externally adjustable timeout duration
• High-precision voltage threshold selection using external resistive dividers
• Adjustable reset delay timing controlled by external capacitance

Power Supply Controllers, Monitors Applications

• Multi-rail power supply supervision in embedded systems
• Processor reset management with watchdog functionality
• Industrial control system voltage monitoring
• Automotive electronics power integrity verification

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix and package marking against official Analog Devices documentation to confirm pinout and electrical characteristics. Ensure compatibility with required voltage thresholds and temperature grades before integration. Cross-reference datasheet revision history for any functional updates or packaging changes that may affect design implementation.

Power Supply Controllers, Monitors Selection Notes

Select this component when designing systems requiring simultaneous monitoring of multiple supply voltages with precise threshold accuracy. The configurable nature allows adaptation to various standard voltage levels without changing hardware. Consider the external capacitor requirements for setting reset and watchdog timings during circuit layout planning.

Power Supply Controllers, Monitors Part Context

This part belongs to the LTC2938/LTC2939 family of configurable supply monitors designed for complex power architectures. It complements other supervisory circuits by offering multi-channel oversight with programmable parameters. The series targets applications needing reliable fault detection across diverse voltage domains.

Power Supply Controllers, Monitors Replacement Considerations

Public confirmed substitute part numbers: LTC2939CMS#PBF (6-Supply variant). Verify channel count requirements and package compatibility before substitution.