BD49L34G-TL

Overview

The BD49L34G-TL is a CMOS output voltage detector IC from ROHM Semiconductor, designed for monitoring single-channel power supplies. It features a fixed detection threshold of 3.4 V with an accuracy of ±1%. The device operates within a supply voltage range up to 10 V and consumes a typical operating current of 900 nA. It provides a reset delay time of 100 µs and lacks manual reset or watchdog timer functions. Packaged in an SSOP-3 format, it supports surface mount installation and functions across a temperature range of -40°C to +105°C.

Feature Summary

• CMOS output interface for direct logic integration
• High precision voltage detection with ±1% accuracy
• Ultra-low power consumption suitable for battery applications

Applications

• Portable electronic devices requiring low standby current
• Battery-powered systems needing reliable voltage supervision
• General purpose processor supervisor circuits

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm package integrity and moisture sensitivity handling requirements before assembly. Cross-reference datasheet revisions to ensure parameter consistency with design specifications.

Selection Notes

Select this component when a fixed 3.4 V threshold with CMOS output is required. Consider the BD48L34G-TL if an open-drain output is preferred instead. Evaluate thermal performance and PCB layout constraints associated with the SSOP-3 package for optimal reliability.

Part Context

Part of the BD49xxx series of highly accurate, low-current voltage detectors. This series offers various detection voltages in 0.1 V increments, providing flexibility for different supply rail monitoring needs within consumer and industrial electronics.

Replacement Considerations

BD5234G-1 is listed as a similar specification replacement option.