BD48E55G-TR

Overview

The BD48E55G-TR is a standard voltage detector IC from Rohm Semiconductor, designed for monitoring supply voltages in electronic circuits. It features an N-channel open-drain output and operates within a reset active voltage range of 0.95V to 10V. The device provides a typical under-voltage detection threshold of 5.5V with a precision of ±1%. It consumes low circuit current, specified at 0.60μA (ON) and 0.85μA (OFF) at Vs=4.8V. The component supports a hysteresis voltage of Vs x 0.05 and delivers an L-output current of 2mA at high voltage levels. It is housed in a compact SSOP5 package measuring 2.9x2.8mm with a thickness of 1.25mm, suitable for surface-mount applications across a temperature range of -40°C to 105°C.

Feature Summary

• Provides precise voltage supervision with a fixed 5.5V detection threshold and ±1% accuracy.
• Features an N-channel open-drain output compatible with various logic families.
• Incorporates internal hysteresis to prevent output oscillation during voltage transitions.
• Utilizes Cu wire bonding technology for enhanced reliability.

Applications

• Monitoring power supply rails in embedded systems
• Reset generation for microcontrollers and processors
• Voltage supervision in portable electronic devices

Procurement Notes

Verify the specific ordering suffix and packaging configuration against official Rohm documentation before procurement. Confirm that the selected variant matches the required detection voltage and package dimensions. Ensure compliance with RoHS standards and check the current supply status, as this component may be subject to last-time buy notices or end-of-life restrictions. Cross-reference pinouts with replacement parts if necessary.

Selection Notes

Select this component when a fixed 5.5V detection threshold is required without adjustable delay functions. Consider the SSOP5 package size and low current consumption for space-constrained designs. Evaluate the open-drain output capability against system logic requirements. Compare performance metrics such as hysteresis and output drive strength with alternative supervisors if variable thresholds or additional features like watchdog timers are needed.

Part Context

The BD48E55G-TR belongs to the BD48Exx series of standard voltage detectors manufactured by Rohm Semiconductor. This series focuses on high-accuracy, low-current supervision solutions for general-purpose electronics. The device is part of a broader family offering various detection voltages, sharing common interface characteristics and package options to facilitate design scalability across different product lines.

Replacement Considerations

The BD5250G-1 is documented as a recommended replacement with the same SSOP5 package. Verify compatibility regarding detection voltage differences and delay timer functionalities before substitution.