BD4834G-TR

Overview

The BD4834G-TR is a standard CMOS voltage detector IC manufactured by Rohm Semiconductor. It features an open-drain output and monitors a single input channel with a threshold voltage of 3.4 V. The device operates within a supply voltage range of 0.95 V to 10 V, offering detection accuracy of ±1%. It includes a reset delay timer and functions without manual reset or watchdog capabilities. The component is housed in a compact SSOP-5 package, suitable for surface-mount applications across industrial temperature ranges.

Feature Summary

• Provides precise voltage monitoring with high detection accuracy
• Features open-drain output for flexible logic interfacing
• Includes internal reset delay timer for stable signal generation
• Designed for low-power consumption in portable electronics

Applications

• Portable equipment power management
• Battery-operated devices voltage supervision
• General-purpose electronic circuit protection
• Microprocessor system reset circuits

Procurement Notes

Verify the specific suffix G-TR to confirm the SSOP-5 surface-mount packaging and tape-and-reel shipping format. Ensure compatibility with the target PCB footprint and reflow soldering profile. Confirm that the 3.4 V threshold aligns with the system's required undervoltage lockout level. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a fixed 3.4 V detection threshold is required for single-channel monitoring. The open-drain output allows for wired-OR connections and easy interface with various logic families. Consider the SSOP-5 package size constraints and the absence of manual reset functionality during the design phase. Evaluate the operating temperature range against the intended application environment.

Part Context

This part belongs to the BD48 series of standard CMOS voltage detectors from Rohm Semiconductor. The series is characterized by low current consumption and high precision. The BD4834G-TR specifically targets applications requiring reliable power supervision in space-constrained designs. It serves as a foundational component for ensuring system stability during power-up and power-down sequences.

Replacement Considerations

BD48L34G-TL offers similar specifications but utilizes an SSOP-3 package. BD5234G-1 provides comparable performance with an adjustable delay timer and different pin configuration. Verify pinout compatibility and package dimensions before substituting to ensure mechanical fit.