BU4315G-TR

Overview

The BU4315G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. 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 1.5 V with a precision of ±1%. It utilizes an SSOP-5 package and supports SMD/SMT installation. Key electrical parameters include a maximum power dissipation of 540 mW and an operating temperature range from -40°C to +125°C. The output type is CMOS, and it does not include manual reset or watchdog timer functions.

Feature Summary

• CMOS output interface for direct logic integration
• Adjustable reset delay timer functionality
• High accuracy voltage detection with ±1% precision

Applications

• Portable equipment requiring low voltage monitoring
• Battery-powered systems needing supervision
• General purpose electronic circuits

Procurement Notes

Verify the current supply status as this component is marked as Not Recommended for New Designs (NRND). Confirm that existing inventory meets project requirements before procurement. Check RoHS compliance details and ensure the SSOP-5 package matches PCB footprint specifications. Validate that the 1.5 V threshold aligns with system design needs.

Selection Notes

Select this part when a CMOS output and adjustable delay are required for voltage supervision. Ensure the 0.7 V to 7 V input range covers the application's operational voltages. Consider the NRND status for long-term availability risks. Compare static current consumption against other family members if power efficiency is critical.

Part Context

This component belongs to the BU42(43)xxG series of voltage detectors. It is functionally similar to the BD5215G-1, which shares the same pinout and package but offers different electrical characteristics. The BU4315G-TR is part of ROHM's portfolio of PMIC solutions focused on power management ICs.

Replacement Considerations

The BD5215G-1 is a recommended replacement with the same pinout and package. Verify compatibility regarding output type differences and specific electrical parameter variations before substitution.