BU4823G-TR

Supervisors Overview

The BU4823G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply voltages. It features an open-drain output and operates within a supply voltage range of 0.7 V to 7 V. The typical under-voltage detection threshold is set at 2.3 V with a precision of ±1%. The device functions reliably across an extended temperature range from -40°C to +125°C. It consumes low current, typically 0.40 μA in the ON state and 0.55 μA in the OFF state at VDET=4.8V. The component is housed in an SSOP-5 package and does not include manual reset or watchdog timer functionalities.

Supervisors Feature Summary

• Provides precise under-voltage detection with a fixed threshold and high accuracy.
• Operates with ultra-low power consumption suitable for battery-powered applications.
• Features an open-drain output compatible with various logic families.

Supervisors Applications

• Portable electronic devices requiring efficient power management
• Battery-operated equipment needing voltage level supervision
• General-purpose supervisory circuits in consumer electronics

Supervisors Procurement Notes

Verify the specific revision and manufacturing date code upon ordering, as this component may be subject to lifecycle changes. Confirm that the SSOP-5 package dimensions match your PCB footprint requirements. Ensure compatibility with the target system's voltage levels and operating temperature range before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when a fixed 2.3 V detection threshold is required for single-channel voltage monitoring. Consider its low static current for energy-sensitive designs. Verify that the open-drain output configuration aligns with the downstream circuitry needs. Evaluate the SSOP-5 package size against available board space constraints.

Supervisors Part Context

This part belongs to the BU48 series of standard voltage detectors from ROHM Semiconductor. It is functionally similar to the BD5223G-1 but lacks adjustable delay features. The series is designed for cost-effective and compact voltage supervision solutions in portable and industrial applications.

Supervisors Replacement Considerations

The BD5223G-1 is listed as a similar specification replacement with the same package type. Verify electrical parameter compatibility, particularly regarding reset active voltage range and output current capabilities, before substituting.