BU4310FVE-TR

Overview

The BU4310FVE-TR is a CMOS voltage detector from ROHM Semiconductor, designed for monitoring single-input power supplies. 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 1.0 V with ±1% precision. It consumes 0.40 μA in the active state and 0.55 μA when off, measured at Vdet=4.8V. The output is CMOS with a low active state. It is housed in an SSOP-5 package and supports an operating temperature range from -40°C to +125°C.

Feature Summary

• CMOS output type with low active reset state
• Adjustable reset delay timer functionality
• High accuracy voltage detection with ±1% precision
• Low power consumption suitable for battery applications

Applications

• Portable electronic devices requiring low standby current
• Microprocessor system reset circuits
• Battery-powered equipment voltage monitoring
• Industrial control systems operating in wide temperature ranges

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for obsolescence notices, as this part may be discontinued or restricted for new designs. Ensure packaging specifications match production requirements.

Selection Notes

Select this component for applications requiring precise voltage monitoring with adjustable timing delays. Consider the SSOP-5 package constraints and thermal performance within the specified temperature range. Evaluate power budget against the 0.40 μA active current draw.

Part Context

This component belongs to the BU42(43)xxFVE series of supervisory circuits. It shares pinout compatibility with related models like the BD5210G-1, facilitating potential design upgrades or replacements within existing layouts while maintaining functional consistency.

Replacement Considerations

The BD5210G-1 is listed as a similar level replacement with the same pinout and package. Verify electrical parameter alignment before substitution.