BU4336F-TR

Overview

The BU4336F-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features an adjustable reset delay timer and operates within a detection voltage range of 0.7 V to 7 V. The typical under-voltage detection threshold is 3.6 V with a precision of ±1%. The device supports a maximum operating voltage of 7 V and functions across a temperature range of -40°C to +125°C. It consumes 0.40 μA in the ON state and 0.55 μA in the OFF state at VDET=4.8V. The output is CMOS type with a low active state, housed in an SSOP-5 package.

Feature Summary

• Integrates an adjustable delay timer for customizable reset timing sequences.
• Provides high-precision voltage detection with ±1% accuracy tolerance.
• Operates with ultra-low current consumption suitable for battery-powered applications.

Applications

• Portable electronic devices requiring precise power management
• Embedded systems needing reliable brown-out protection
• Industrial control circuits with wide temperature operation requirements

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notices, as this part may be subject to discontinuation. Ensure packaging specifications match design requirements before finalizing procurement orders.

Selection Notes

Select this component when a fixed threshold voltage near 3.6 V is required alongside programmable delay functionality. Consider the SSOP-5 package constraints and verify that the CMOS output drive capability meets downstream logic interface needs. Evaluate thermal performance within the specified -40°C to +125°C operational range.

Part Context

This component belongs to the BU43xx series of voltage detectors from ROHM Semiconductor. It serves as a dedicated supervisory circuit for ensuring system stability during power fluctuations. The series is characterized by low power consumption and compact packaging options suitable for space-constrained designs.

Replacement Considerations

BD5236G-1TR is listed as a recommended replacement with similar pinout compatibility. Verify electrical parameter alignment and package dimensions before substitution.