BU4915F-TR

Supervisors Overview

The BU4915F-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features an under-voltage detection threshold of 1.5V with a precision of ±1%. The reset active voltage range spans from 0.7V to 7V. The device utilizes a CMOS output type and operates without a manual reset or watchdog timer. Circuit current consumption is specified at 0.40μA in the ON state and 0.55μA in the OFF state, measured at VDET=4.8V. Hysteresis voltage is defined as VDET multiplied by 0.05. The L output current capabilities are 3.3mA at low voltage and 6.5mA at high voltage. It supports an operating temperature range from -40°C to 125°C and is housed in an SSOP-5 package.

Supervisors Feature Summary

• CMOS output interface for digital logic compatibility
• High precision under-voltage detection capability
• Low power consumption design suitable for battery applications
• Integrated hysteresis to prevent output oscillation

Supervisors Applications

• Portable battery-powered equipment
• Multi-output power supplies
• Test and measurement instruments
• Microprocessor voltage monitoring systems

Supervisors Procurement Notes

Verify the specific suffix F against official documentation to confirm package and tape specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Check for end-of-life notifications as this component family may have replacement recommendations. Ensure the ordering part number matches the required reel quantity and packing type for production integration.

Supervisors Selection Notes

Select this component when a precise 1.5V threshold is required for system supervision. The CMOS output allows direct interfacing with microcontrollers without additional pull-up resistors. Consider the low standby current for energy-efficient designs. Verify that the SSOP-5 package fits the available PCB footprint and that the operating temperature range meets environmental requirements.

Supervisors Part Context

This part belongs to the BU49xx series of standard voltage detectors from ROHM Semiconductor. These devices are engineered for reliable power management in portable and industrial electronics. The series offers various detection thresholds to accommodate different logic families and battery chemistries. The BU4915F-TR specifically targets applications requiring accurate low-voltage monitoring with minimal power draw.

Supervisors Replacement Considerations

The BD5215G-1 is listed as a similar specification replacement. Verify package compatibility and electrical parameter alignment before substitution.