BU4842F-TR

$0.88

Description：IC SUPERVISOR 1 CHANNEL 4SOP
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:273a6f97f82f Category: Supervisors Brand: Rohm Semiconductor

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Product introduction

BU4842F-TR is listed in the Supervisors range at ChipApex. The manufacturer field lists Rohm Semiconductor. Its product description is IC SUPERVISOR 1 CHANNEL 4SOP. Review the specifications below when checking this part for your BOM.

Supervisors specifications for BU4842F-TR

Description：IC SUPERVISOR 1 CHANNEL 4SOP
Series：-
Mfr：Rohm Semiconductor
Package：Tape & Reel (TR),Cut Tape (CT)
Type：Simple Reset/Power-On Reset
Number of Voltages Monitored：1
Voltage - Threshold：4.2V
Output：Open Drain or Open Collector
Reset：Active Low
Reset Timeout：-
Operating Temperature：-40°C ~ 125°C (TA)
Mounting Type：Surface Mount
Package / Case：SC-82
Supplier Device Package：4-SOP
Grade：-
Qualification：-

Supervisors datasheet and documents for BU4842F-TR

BU4842F-TR

Supervisors Overview

The BU4842F-TR is a single-channel CMOS voltage detector manufactured by Rohm Semiconductor. It features an open-drain output and provides a low-active reset signal upon detecting under-voltage conditions. The device monitors a supply voltage with a typical threshold of 4.2V and includes hysteresis to prevent output oscillation during power transitions. Designed for surface-mount installation in a compact 4-SOP package, it operates within a wide temperature range of -40°C to 125°C.

Supervisors Feature Summary

Generates a reset signal when the monitored voltage falls below the specified threshold
Provides hysteresis functionality to ensure stable output states during voltage fluctuations
Features an open-drain output configuration compatible with various logic families

Supervisors Applications

Power supply supervision in embedded systems
Microcontroller reset circuitry
Battery-powered device monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm that the selected replacement matches the required pinout and electrical characteristics. Validate RoHS compliance documentation for regulatory adherence. Ensure the substitute part supports the necessary operating temperature range for the intended application environment.

Supervisors Selection Notes

Consider the BD5242G-1TR as a recommended replacement offering similar detection voltage specifications. Evaluate package compatibility between the legacy SOP4 form factor and alternative SSOP5 options. Assess current consumption requirements against available alternatives to maintain system efficiency. Verify that the replacement maintains the same reset polarity and output drive capabilities.

Supervisors Part Context

This component belongs to Rohm's standard voltage detector series designed for simple power management tasks. It serves as a foundational supervisory element in circuits requiring reliable power-on reset or under-voltage protection without complex configuration.