BD4826G-TR

Overview

The BD4826G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for monitoring single-input power supply lines. It features an open-drain output and operates within a supply voltage range of 1.2 V to 7 V. The device triggers at a typical threshold voltage of 2.6 V with 1% accuracy. Key electrical parameters include a reset delay time of 100 µs, a maximum power dissipation of 540 mW, and a low operating current of 750 nA. It functions reliably across a temperature range of -40°C to +125°C.

Feature Summary

• Provides precise under-voltage detection with high accuracy for system supervision
• Utilizes an N-channel open-drain output interface for flexible logic integration
• Designed for ultra-low power consumption suitable for battery-operated applications

Applications

• Processor supervisor circuits requiring reliable reset signals
• Battery-powered portable devices needing low quiescent current
• Embedded systems monitoring critical voltage rails

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and tape/reel specifications. Check for end-of-life status as indicated by supplier listings. Ensure compliance with RoHS directives relevant to your region. Validate that the received part number corresponds exactly to the BD4826G-TR designation.

Selection Notes

Select this component when a fixed 2.6 V detection threshold is required. Consider the SSOP-5 package constraints for PCB layout. Evaluate the 750 nA standby current against total system power budgets. Ensure the open-drain output compatibility with the target microcontroller input levels. Verify that the 100 µs reset delay meets the timing requirements of the controlled circuitry.

Part Context

This part belongs to the BD48 series of standard CMOS voltage detectors. It shares functional similarities with other members like the BD4827G-TR but differs in its specific detection voltage setting. The series is characterized by high precision and low power consumption, targeting general-purpose supervisory roles in consumer and industrial electronics.

Replacement Considerations

The BD48E26G-TR is listed as a similar level replacement with the same SSOP-5 package. Verify if the slight differences in operating voltage range (0.8V to 6V vs 1.2V to 7V) and current consumption affect the specific application design before substitution.