BD45342G-TR

Overview

The BD45342G-TR is a voltage detector IC from the BD45 series by ROHM Semiconductor, housed in a 5-pin SSOP package. It features a fixed threshold voltage of 3.4 V with ±1% accuracy and an open-drain output. The device includes a manual reset function and a fixed reset delay time of 200 ms. It operates within a supply voltage range of 0.95 V to 10 V and supports temperatures from -40°C to +105°C. Quiescent current is typically 800 nA. This component is classified as a supervisory circuit designed for processor monitoring applications.

Feature Summary

• Provides precise voltage monitoring with a fixed 3.4 V detection threshold and high accuracy.
• Includes a manual reset input pin allowing external control over the reset state.
• Features a fixed internal delay timer to ensure stable power-up sequencing.
• Utilizes an open-drain output configuration compatible with various logic families.

Applications

• Processor supervisor circuits requiring reliable power-on reset signals
• Battery-powered devices needing low quiescent current monitoring
• Embedded systems with manual reset requirements

Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance and lead times with suppliers. Check for alternative sourcing options as availability may be limited. Ensure storage conditions meet moisture sensitivity level requirements before reflow soldering.

Selection Notes

Select this part when a fixed 3.4 V threshold and manual reset capability are required. Compare against BD45362G-TR or BD45352G-TR if different voltage thresholds are needed. Consider the BD5234G-1 as a potential replacement option with similar specifications but adjustable delay features.

Part Context

Part of the BD45 series voltage detectors, designed for general-purpose supervision. Shares packaging and basic functionality with other BD45 variants differing primarily in threshold voltage settings. Commonly used in consumer electronics and industrial control systems where compact size and low power consumption are critical.

Replacement Considerations

BD5234G-1 is listed as a similar level replacement with the same SSOP5 package. Verify compatibility regarding delay timer adjustability and operating voltage ranges before substitution.