BU4816G-TR

Supervisors Overview

The BU4816G-TR is a standard voltage detector IC from ROHM Semiconductor, designed for monitoring supply voltages in electronic circuits. It features an under-voltage detection threshold of 1.6V with a precision of ±1%. The device operates within a reset active voltage range of 0.7V to 7V and utilizes an open-drain output type. It consumes a circuit current of 0.40μA when active (at Vdet=4.8V) and 0.55μA when off. The hysteresis voltage is defined as Vdet multiplied by 0.05. The component is housed in an SSOP-5 package and supports a temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Provides precise under-voltage detection with high accuracy for system supervision.
• Features low power consumption suitable for battery-operated or energy-efficient applications.
• Includes built-in hysteresis to prevent output oscillation during voltage transitions.

Supervisors Applications

• Monitoring power supply voltages in portable electronic devices
• Supervising microprocessor reset lines in embedded systems
• Battery management systems requiring low standby current

Supervisors Procurement Notes

Verify the specific ordering suffix and packaging configuration before procurement, as the BU4816G-TR designation indicates tape and reel packaging. Confirm that the component status aligns with project requirements, noting that this part is designated as not recommended for new designs. Ensure compatibility with existing inventory strategies if continuing use in legacy products. Cross-reference the exact datasheet version to confirm electrical parameters match the intended application constraints.

Supervisors Selection Notes

Select the BU4816G-TR when a fixed 1.6V detection threshold is required for voltage supervision. Consider the open-drain output capability for interfacing with various logic levels. Evaluate the low operating current against system power budgets. Verify that the SSOP-5 package fits the available PCB footprint. Assess whether the specified temperature range meets the environmental conditions of the target application.

Supervisors Part Context

The BU4816G-TR belongs to the BU4816 series of standard voltage detectors manufactured by ROHM Semiconductor. This series is characterized by CMOS technology and offers high precision for reset signal generation. The component serves as a supervisory circuit to ensure reliable operation by detecting under-voltage conditions. It is part of a broader lineup of voltage detectors offering various thresholds and output types.

Supervisors Replacement Considerations

The BD5216G-1 is listed as a similar level replacement with the same package type. Verify electrical parameter compatibility, particularly the detection voltage and output characteristics, before substituting the components.