BD49L39G-TL

Overview

The BD49L39G-TL is a voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages in electronic circuits. It features a CMOS output type and operates within a detection voltage range of 0.95V to 10V. The specific under-voltage detection threshold is set at 3.9V with a precision of ±1%. The device does not include a reset delay timer or manual reset functionality. It is housed in an SSOP-3 package and supports a minimum packing quantity of 3000 units.

Feature Summary

• CMOS output configuration for direct logic interface compatibility
• High accuracy voltage detection with ±1% precision tolerance
• Low current consumption design suitable for battery-powered applications

Applications

• Processor supervisor circuits requiring precise voltage monitoring
• Battery backup systems for low-power embedded devices
• General-purpose voltage supervision in consumer electronics

Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm package integrity and pin alignment against the SSOP-3 specification. Ensure storage conditions comply with moisture sensitivity levels prior to assembly. Cross-reference datasheet revisions to confirm electrical characteristics match system requirements before integration into production designs.

Selection Notes

Select this component when a fixed 3.9V threshold with CMOS output is required. Consider alternatives if adjustable delay timers or open-drain outputs are needed. Evaluate thermal performance within the specified operating temperature range. Compare current consumption metrics against similar ROHM series parts for optimal power efficiency in portable applications.

Part Context

This part belongs to the BD49L series of voltage detectors, characterized by high accuracy and low current consumption. It serves as a standard supervisor for digital systems, ensuring reliable operation by detecting under-voltage conditions. The series offers various detection voltages to accommodate different power rail requirements across multiple electronic product categories.

Replacement Considerations

BD5239G-1 is listed as a similar level replacement with comparable specifications.