BU4836F-TR

Supervisors Overview

The BU4836F-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of 0.7 V to 7 V and features a fixed detection threshold of 3.6 V with an accuracy of ±1%. The device utilizes an open-drain output configuration and lacks manual reset or watchdog timer functions. It is housed in a compact SMD package suitable for surface mount applications across a temperature range of -40°C to +125°C.

Supervisors Feature Summary

• CMOS technology ensures low power consumption for battery-operated systems
• Fixed threshold voltage provides precise under-voltage detection
• Open-drain output allows flexible interfacing with various logic families

Supervisors Applications

• Portable electronic devices requiring voltage supervision
• Battery-powered equipment needing low quiescent current
• General-purpose microprocessor reset circuits

Supervisors Procurement Notes

Verify the specific suffix F against official ROHM documentation to confirm package type and electrical characteristics, as variations exist within the BU4836 series. Confirm availability status as distribution channels may list obsolete or NRND parts. Ensure compatibility with existing PCB footprint and design-in requirements before procurement.

Supervisors Selection Notes

Select this component when a fixed 3.6 V threshold is required without adjustable delay or manual reset capabilities. Compare static current specifications against other series members if ultra-low power is critical. Verify that the open-drain output meets the pull-up requirements of the target system logic.

Supervisors Part Context

This part belongs to the BU4836 family of standard voltage detectors from ROHM Semiconductor. It shares functional similarities with other members like the BU4836G-TR but differs in packaging and specific electrical parameters. The series is widely used for simple supervisory roles in consumer electronics.

Supervisors Replacement Considerations

The BD5236G-1 is listed as a recommended replacement with similar specifications and pinout compatibility. Verify package dimensions and exact threshold tolerances when substituting.