BU4236FVE-TR

Overview

The BU4236FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features an adjustable reset delay timer and operates within a supply voltage range of 0.7 V to 7 V. The device provides a typical under-voltage detection threshold of 3.6 V with a precision of ±1%. It utilizes an open-drain output type and supports a manual reset function absence. The component functions reliably across an extended temperature range from -40°C to +125°C, ensuring stable performance in various electronic applications.

Feature Summary

• Adjustable reset delay timer allows customization of response timing via external components.
• Open-drain output configuration facilitates interface compatibility with various logic families.
• CMOS technology ensures low power consumption suitable for battery-operated systems.

Applications

• Portable electronic devices requiring low voltage supervision
• Battery-powered equipment needing reliable power management
• General-purpose industrial control circuits

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary markets. Ensure that any substitute parts meet the required electrical specifications and pinout compatibility. Check RoHS compliance documentation for regulatory adherence. Validate lead times as stock levels may be limited due to end-of-life status.

Selection Notes

Select this component when an adjustable delay timer is required for specific reset timing needs. Consider the open-drain output if interfacing with different voltage logic levels. Evaluate the operating voltage range against the system's minimum and maximum supply requirements. Assess the thermal performance within the specified temperature range for the intended application environment.

Part Context

This part belongs to the BU42xx series of voltage detectors from ROHM Semiconductor. These devices are designed for simple supervisory functions without complex watchdog or backup features. The FVE package variant offers a compact surface-mount solution suitable for space-constrained designs. The series generally targets cost-sensitive applications requiring basic power monitoring capabilities.

Replacement Considerations

BD5236G-1 is listed as a recommended replacement with the same pinout. Verify electrical parameter compatibility, particularly regarding hysteresis and output current characteristics. Ensure the replacement package (SSOP5 vs VSOF5) fits the existing PCB footprint or requires design modification.