BU4815G-TR

Supervisors Overview

The BU4815G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single power supply rails. It operates within a supply voltage range of 0.7 V to 7 V and features a typical under-voltage detection threshold of 1.5 V with ±1% precision. The device utilizes an SSOP-5 surface-mount package and provides an open-drain output that activates in the low state. It consumes a maximum operating current of 550 nA and includes hysteresis defined as VDET multiplied by 0.05. The component supports an extended industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides precise under-voltage detection with high accuracy for reliable system supervision
• Features low power consumption suitable for battery-operated applications
• Includes built-in hysteresis to prevent output oscillation during threshold transitions

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Microcontroller reset circuits in embedded systems
• Battery-powered equipment needing voltage level monitoring

Supervisors Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as availability may vary by region. Confirm compliance with RoHS directives prior to integration. Note that this component carries a Not Recommended for New Designs (NRND) status; evaluate long-term supply stability and lifecycle constraints before finalizing procurement plans for production runs.

Supervisors Selection Notes

Select this component for designs requiring a fixed 1.5 V detection threshold with minimal quiescent current. Ensure the application does not require manual reset or watchdog timer functions, as these are absent. Verify that the open-drain output configuration aligns with the downstream logic interface requirements and pull-up resistor specifications.

Supervisors Part Context

This part belongs to the BU48xxG series of standard voltage detectors from ROHM Semiconductor. These components are engineered for general-purpose supervisory roles in consumer and industrial electronics. The series offers various threshold options while maintaining consistent package dimensions and electrical characteristics across different voltage variants.

Supervisors Replacement Considerations

The BD5215G-1 is documented as a replacement with the same package type. Verify functional compatibility regarding reset delay timers and output drive capabilities before substitution.