BU4844G-TR

Supervisors Overview

The BU4844G-TR is a CMOS voltage detector IC manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed under-voltage detection threshold of 4.4 V with a precision of ±1%. The device operates within a supply voltage range of 0.7 V to 7 V and provides an open-drain reset output that activates at a low state. It does not include manual reset, watchdog timer, or battery backup switch functions. The component supports surface-mount installation in an SSOP-5 package and maintains an operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• CMOS technology ensures low power consumption suitable for battery-operated systems
• Fixed threshold voltage detection eliminates external resistor network requirements
• Open-drain output interface allows flexible connection to various logic families

Supervisors Applications

• Microprocessor system reset circuits
• Battery-powered equipment monitoring
• Portable electronic devices requiring voltage supervision

Supervisors Procurement Notes

Verify the specific ordering part number against the manufacturer's current documentation to confirm availability status. Check RoHS compliance details and ensure the SSOP-5 package matches the target PCB footprint. Confirm that the fixed 4.4 V threshold aligns with the system design requirements before procurement.

Supervisors Selection Notes

Select this component when a precise 4.4 V detection level is required without adjustable thresholds. Consider the open-drain output capability for interfacing with different logic voltages. Evaluate the wide operating temperature range for suitability in industrial or automotive environments if applicable.

Supervisors Part Context

This part belongs to the BU4846G series of standard voltage detectors. It is classified under PMIC - Power Management ICs. The device is intended for general-purpose voltage monitoring in electronic systems where reliable reset generation is critical for proper operation.

Supervisors Replacement Considerations

BD5244G-1 is listed as a similar level replacement with the same package type. Verify electrical parameter compatibility and pin configuration before substitution.