BU4828G-TR

Supervisors Overview

The BU4828G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 2.8 V with an accuracy of ±1%. The device operates within a supply voltage range of 700 mV to 7 V and supports a wide operating temperature range from -40°C to +125°C. It utilizes an open-drain output type without manual reset or watchdog timer functions. The component is housed in an SSOP-5 package and consumes a typical static current of 450 nA.

Supervisors Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated systems
• Fixed detection threshold provides precise voltage monitoring without external components
• Open-drain output allows flexible interfacing with various logic families
• Wide operating temperature range supports industrial and automotive environments

Supervisors Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing reliable power supervision
• Industrial control systems operating in extreme temperatures
• Embedded systems utilizing CMOS logic interfaces

Supervisors Procurement Notes

Verify the specific lot date code and RoHS compliance status before procurement, as this component carries an NRND (Not Recommended for New Designs) lifecycle status. Confirm that the SSOP-5 package dimensions match your PCB footprint requirements. Ensure that the open-drain output configuration aligns with your system's pull-up resistor strategy. Check for any alternative recommended replacements if long-term availability is a critical constraint for your production timeline.

Supervisors Selection Notes

Select this component when a fixed 2.8 V threshold is required for voltage supervision. The low static current makes it ideal for energy-efficient designs. Consider the open-drain output capability for compatibility with different logic levels. Verify that the maximum supply voltage of 7 V exceeds your system's peak operating voltage. Ensure the thermal performance meets your application's ambient temperature conditions within the specified -40°C to +125°C range.

Supervisors Part Context

This part belongs to the BU48xxG series of standard voltage detectors from ROHM Semiconductor. These devices are designed for simple reset and power-on reset applications. The series offers various threshold voltages to accommodate different supply rails. The BU4828G-TR specifically targets applications requiring a 2.8 V detection point with high precision and low power consumption in a compact surface-mount package.

Supervisors Replacement Considerations

BD5228G-1TR is listed as a replacement with the same package and similar detection voltage.