BU46K292G-TL

Overview

The BU46K292G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring single power supply lines. It features a CMOS output and operates within a supply voltage range of 0.6 V to 6 V. The device triggers at a threshold voltage of 2.9 V with an accuracy of 1%. It includes a reset delay time of 200 ms and consumes a typical operating current of 2.8 µA. The component is housed in an SSOP-3 package and supports operation temperatures from -40°C to +105°C.

Feature Summary

• CMOS output structure for direct logic interface compatibility
• High detection accuracy of 1% for precise voltage monitoring
• Ultra-low power consumption suitable for battery-operated systems

Applications

• Portable electronic devices requiring low standby current
• Microprocessor system reset circuits
• Battery-powered equipment voltage supervision

Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before procurement. Confirm that existing inventory or last-time-buy options meet project requirements. Ensure the SSOP-3 package and 2.9V threshold align with the target circuit design specifications.

Selection Notes

Select this component when a 2.9V threshold with 1% accuracy is required. The CMOS output type distinguishes it from open-drain variants in the same series. Consider the 200ms reset delay and 2.8µA current draw for power-sensitive applications.

Part Context

This part belongs to the BU45/BU46 series of supervisory circuits. It shares similar electrical characteristics with other members like BU46K252G-TL but differs in threshold voltage. The series provides various threshold options for different voltage rails.

Replacement Considerations

Direct substitutes include BU45K292G-TL (Open Drain output) and BU46K292G (without tape/reel suffix). Verify output stage compatibility when replacing with Open Drain variants.