BD48E34G-TR

Overview

The BD48E34G-TR is a high-accuracy voltage detector IC from the ROHM BD48xxx series, designed for monitoring single power supply rails. It features an N-channel open-drain output and provides a fixed detection threshold of 3.4V with ±1% precision. The device operates within a reset active voltage range of 0.95V to 10V and consumes low current, typically 0.60μA when active and 0.85μA when inactive at Vs=4.8V. It includes hysteresis defined as Vs x 0.05 and utilizes Cu wire bonding technology. Packaged in a 5-pin SSOP (SC-74A) format, it supports surface-mount installation and functions across a temperature range of -40°C to +105°C.

Feature Summary

• High-accuracy voltage detection with ±1% threshold precision
• Low current consumption suitable for battery-powered applications
• N-channel open-drain output configuration
• Integrated hysteresis to prevent output oscillation

Applications

• Processor supervisor circuits
• Battery voltage monitoring systems
• Portable electronic devices requiring low standby current

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for moisture sensitivity labeling prior to soldering. Ensure the specific ordering suffix matches the required tape-and-reel packaging quantity. Validate that the part number corresponds to the non-automotive grade version unless otherwise specified.

Selection Notes

Select this component for designs requiring precise under-voltage detection without manual reset or watchdog functionality. The open-drain output allows flexible interfacing with various logic levels. Consider the operating voltage range and thermal characteristics to ensure compatibility with the target application environment and power budget constraints.

Part Context

This device belongs to the BD48xxx series of standard CMOS voltage detectors manufactured by ROHM Semiconductor. The series is characterized by high accuracy and low power consumption, utilizing copper wire bonding for enhanced reliability. The BD48E34G-TR specifically targets general-purpose supervision tasks where precise threshold monitoring is critical.

Replacement Considerations

The BD5234G-1TR is documented as a replacement option with the same SSOP5 package. Note differences in reset delay timer adjustability and circuit current specifications when substituting.