BU4835G-TR

Supervisors Overview

The BU4835G-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply voltages. It features an open-drain output type and operates within a reset active voltage range of 0.7 to 7 V. The typical under-voltage detection voltage is 3.5 V with a precision of ±1%. The device draws a circuit current of 0.40 μA when ON (at Vs=4.8V) and 0.55 μA when OFF. It includes hysteresis defined as VDET x 0.05. The component is supplied in an SSOP5 package with a unit quantity of 3000 per tape. It is not recommended for new designs.

Supervisors Feature Summary

• Provides under-voltage detection with open-drain output capability
• Operates across a wide reset active voltage range
• Features low power consumption with minimal circuit current draw
• Includes built-in hysteresis to prevent output fluctuation

Supervisors Applications

• Power supply supervision in electronic systems
• Monitoring battery voltage levels
• Reset signal generation for microcontrollers
• Over-voltage or under-voltage protection circuits

Supervisors Procurement Notes

Verify the supply status carefully before procurement, as this component is explicitly marked as not recommended for new designs. Confirm that the SSOP5 package and 3000-unit taping format align with existing inventory requirements. Ensure compatibility with legacy systems where replacement parts are restricted. Check for RoHS compliance documentation if required for specific manufacturing standards. Validate that the open-drain output configuration meets the interface requirements of the target application without additional pull-up components.

Supervisors Selection Notes

Select this component only for maintaining existing designs rather than initiating new projects. Consider the ±1% detection precision and the specific 3.5 V threshold against system requirements. Evaluate the low standby current for battery-operated applications. Compare the SSOP5 package dimensions with available PCB footprints. Assess the lack of manual reset or watchdog timer features against system reliability needs. Verify that the operating temperature range covers the environmental conditions of the intended use case.

Supervisors Part Context

The BU4835G-TR belongs to the BU483 series of standard voltage detectors from ROHM Semiconductor. This series focuses on providing reliable voltage monitoring with low power consumption. The part is often compared with similar devices like the BD5235G-1, which offers adjustable delay features. The BU483 series is characterized by its simple operation and compact packaging, suitable for space-constrained electronics. The TR suffix indicates reel packaging for automated assembly processes.

Supervisors Replacement Considerations

BD5235G-1