BU4215G-TR

Overview

The BU4215G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed detection threshold voltage of 1.5 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and provides an open-drain output type. It supports adjustable reset delay times and functions without manual reset or watchdog timer capabilities. The component is housed in an SSOP-5 package and is rated for operation between -40°C and +125°C.

Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated systems.
• Fixed 1.5 V detection threshold provides precise under-voltage monitoring.
• Adjustable reset delay time allows customization of response timing.

Applications

• Portable electronic devices requiring low voltage supervision
• Battery-powered equipment monitoring
• General purpose power supply support circuits

Procurement Notes

Verify the specific suffix G-TR against the official ROHM datasheet to confirm package type and tape-and-reel specifications. Confirm RoHS compliance status directly from the manufacturer's documentation before procurement. Ensure the design accounts for the NRND (Not Recommended for New Designs) status if applicable to current inventory sourcing strategies.

Selection Notes

Select this component when a fixed 1.5 V threshold is required for under-voltage detection. The open-drain output necessitates an external pull-up resistor. Verify that the adjustable delay feature meets system timing requirements. Consider the SSOP-5 package constraints for PCB layout and thermal management within the specified operating temperature range.

Part Context

This part belongs to the BU42xxG series of voltage detectors from ROHM. These components are generally used for monitoring power supply voltages in portable electronics. The BU4215G-TR specifically targets applications needing a 1.5 V trip point. It is part of a broader family of supervisors offering various thresholds and output configurations.

Replacement Considerations

Check for BD5215G-1 as a potential replacement with similar pinout and function. Verify electrical parameters and package compatibility before substitution. Consult ROHM documentation for direct cross-reference recommendations.