BU4836G-TR

Supervisors Overview

The BU4836G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply lines. It operates within a supply voltage range of 0.7 V to 7 V and features a typical threshold voltage of 3.6 V, with an overvoltage detection limit of 3.636 V and an undervoltage threshold of 3.564 V. The device offers high accuracy with a precision of ±1% and maintains low power consumption, drawing a working current of 550 nA and a static current of 500 nA. Packaged in an SSOP-5 format, it supports surface mount installation and functions reliably across a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• Provides precise voltage supervision with open-drain output capability for direct interface with digital logic circuits.
• Ensures stable operation under varying thermal conditions through a wide industrial temperature rating.
• Maintains minimal power draw suitable for battery-operated or energy-efficient system designs.

Supervisors Applications

• Monitoring microprocessor reset signals in embedded systems
• Supervising battery-powered device power rails
• Protecting memory circuits from unstable voltage levels

Supervisors Procurement Notes

Verify the component status as Not Recommended for New Designs (NRND) before finalizing procurement plans. Confirm that the SSOP-5 package dimensions align with existing PCB footprints. Ensure compatibility with the required operating temperature range and verify RoHS compliance documentation for regulatory adherence in target markets.

Supervisors Selection Notes

Select this component when a fixed 3.6 V threshold is required for single-channel voltage monitoring. Consider the open-drain output configuration for level shifting needs. Evaluate the low quiescent current against system power budgets. Verify that the absence of manual reset and watchdog timer functions meets the specific application requirements without necessitating external components.

Supervisors Part Context

This part belongs to the BU4836G series of standard voltage detectors from ROHM Semiconductor. It is categorized under PMIC supervisory circuits. The device shares common family characteristics such as CMOS technology and SSOP-5 packaging with other variants in the series, differing primarily in their specific detection threshold voltages.

Supervisors Replacement Considerations

The BD5236G-1 is listed as a similar specification replacement with the same package type. Verify functional equivalence regarding threshold voltage and output configuration before substitution.