BD46375G-TR

Overview

The BD46375G-TR is a voltage detector manufactured by ROHM Semiconductor, designed for monitoring power supply levels in electronic circuits. It features a fixed detection threshold of 3.7V with a precision of ±1%. The device operates within a reset active voltage range of 0.95V to 10V and utilizes a CMOS output type. It includes a manual reset function and a fixed delay timer of 50msec. The circuit current is specified at 0.80μA when ON and 0.85μA when OFF at VDET=4.8V. Hysteresis is set at VDET x 0.05. The component supports low-level output currents of 1.2mA and high-level currents of 5mA. It functions reliably across a temperature range of -40°C to 105°C and is housed in an SSOP5 package.

Feature Summary

• Integrates a manual reset function for direct control over the reset state.
• Provides a fixed delay timer to prevent false resets during power-up transients.
• Features CMOS output structure for compatibility with digital logic interfaces.

Applications

• Power supply monitoring in portable electronic devices
• Microprocessor system supervision
• Battery-powered equipment voltage tracking

Procurement Notes

Verify the specific ordering suffix and package variant against the manufacturer's latest documentation before procurement. Confirm that the fixed delay time and detection voltage align with the target circuit requirements. Check for any end-of-life or last-time-buy status indicators from authorized distributors. Ensure RoHS compliance matches project specifications. Validate pinout compatibility if replacing existing components on a PCB.

Selection Notes

Select this component when a fixed 3.7V detection threshold with high precision is required. The CMOS output and manual reset capability make it suitable for systems needing explicit reset control. Consider the 50msec fixed delay for applications tolerant of startup delays. Evaluate the operating temperature range to ensure suitability for the intended environmental conditions. Compare static current consumption against battery life requirements.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. These devices are engineered for supervisory applications requiring precise voltage monitoring. The series typically offers various detection voltages and delay options to suit different system architectures. The BD46375G specifically targets applications needing a fixed delay and manual reset functionality.

Replacement Considerations

BD5237G-1TR is listed as a replacement with the same package and similar detection voltage, though it features an open drain output and adjustable delay instead of fixed delay and CMOS output.