BD4958G-TR

Overview

The BD4958G-TR is a standard voltage detector IC from ROHM Semiconductor, designed for processor supervision. It features a fixed detection voltage of 5.8V with ±1% precision accuracy. The device utilizes a CMOS output type and operates within a reset active voltage range of 0.95V to 10V. It is housed in a compact SSOP-5 package and supports an operating temperature range from -40°C to +105°C. The circuit current is specified at 0.60μA (ON) and 0.85μA (OFF) at Vs=4.8V.

Feature Summary

• CMOS output interface for direct logic compatibility
• High precision voltage detection with ±1% tolerance
• Low power consumption suitable for battery-operated systems

Applications

• Processor supervisor circuits
• Voltage monitoring in embedded systems
• Power management supervision

Procurement Notes

Verify the specific suffix G-TR against official ROHM documentation to confirm the SSOP-5 packaging and tape-and-reel delivery format. Ensure the part number matches the exact detection voltage requirement of 5.8V. Cross-reference the manufacturer's latest lifecycle status, as this component may be subject to discontinuation or replacement recommendations.

Selection Notes

Select this component when a precise 5.8V threshold is required for system supervision. The CMOS output allows for direct interfacing with digital logic without additional pull-up resistors. Consider the ±1% accuracy and low standby current for applications demanding high reliability and energy efficiency in portable or industrial environments.

Part Context

This part belongs to the BD49 series of standard voltage detectors. It serves as a dedicated supervisory circuit for monitoring power rails in microprocessor-based designs. The series offers various detection voltages to accommodate different logic families and power supply standards.

Replacement Considerations

BD5250G-1TR is listed as a same-package alternative, though it features a different detection voltage (5.0V) and open-drain output.