BD4723G-TR

Overview

The BD4723G-TR is a voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply levels in electronic circuits. It features an open collector output type and operates within a reset active voltage range of 0.85 to 10 V. The device has a typical under-voltage detection voltage of 2.3 V with a precision of ±1%. It consumes 1.5 μA in the ON state and 1.6 μA in the OFF state, with a hysteresis voltage of 0.05 V. The L output current at low voltage is 15 mA. It supports a minimum operating temperature of -40°C and a maximum of 75°C, housed in an SSOP5 package.

Feature Summary

• Provides reliable voltage supervision with an open collector output configuration.
• Operates across a wide reset active voltage range from 0.85 V to 10 V.
• Maintains high detection accuracy with ±1% precision on the 2.3 V threshold.

Applications

• Monitoring battery-powered systems for low-voltage conditions
• Supervising microprocessor reset lines in embedded devices
• Protecting memory circuits against undervoltage events

Procurement Notes

Verify the specific ordering suffix and packaging details when sourcing, as availability may vary. Confirm that the SSOP5 package dimensions match your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Check for any end-of-life notices or last-time-buy statuses before finalizing procurement plans.

Selection Notes

Select this component when a fixed 2.3 V detection threshold with high precision is required. The open collector output allows flexibility in interfacing with various logic families. Consider the 15 mA sink capability for direct driving applications. Evaluate the 1.5 μA quiescent current against system power budgets. Verify compatibility with the target voltage range of 0.85 V to 10 V.

Part Context

This part belongs to ROHM's voltage detector family, specifically designed for supervisory applications. It shares the SSOP5 package form factor with other series members like the BD5223G-1. The BD4723G-TR is distinct due to its open collector output and specific 2.3 V threshold, differentiating it from CMOS output variants in the same package.

Replacement Considerations

The BD5223G-1 is listed as a recommended replacement with the same SSOP5 package. Note differences in output type (open drain vs. open collector) and current capabilities. Verify that the adjustable delay feature of the substitute does not interfere with existing circuit timing requirements.