BD45361G-TR

Overview

The BD45361G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It features a fixed detection threshold of 3.6 V with a precision of ±1%. The device provides an open-drain output and includes a manual reset function without a watchdog timer. It operates within a supply voltage range of 0.95 V to 10 V and maintains a typical quiescent current of 0.80 μA at 4.8 V. The component supports a reset delay time of 100 ms and functions across a temperature range of -40°C to +105°C.

Feature Summary

• Provides precise under-voltage monitoring with a fixed 3.6 V threshold and ±1% accuracy.
• Features a manual reset input for controlled system initialization.
• Delivers low power consumption with a typical operating current of 0.80 μA.
• Utilizes an open-drain output configuration compatible with various logic levels.

Applications

• Microprocessor system supervision
• Battery-powered device voltage monitoring
• Portable electronic equipment power management

Procurement Notes

Verify the specific suffix G-TR against the official datasheet to confirm the SSOP-5 package and tape-and-reel packaging format. Confirm that the 3.6 V threshold matches the design requirement, as this part number is designated for a fixed voltage detection level. Check for end-of-life status or last-time-buy notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a fixed 3.6 V detection point is required with high accuracy. The manual reset feature allows for external control over the reset state, which is useful for systems requiring specific startup sequences. Ensure the application voltage stays within the 0.95 V to 10 V operational range and that the low quiescent current aligns with battery life requirements.

Part Context

This part belongs to the BD45 series of voltage detectors from ROHM Semiconductor. The series offers various fixed detection voltages and adjustable options in compact packages. The BD45361G-TR specifically targets applications needing reliable supervision with minimal power draw, fitting into the broader portfolio of supervisory circuits designed for portable and industrial electronics.

Replacement Considerations

The BD5236G-1 is listed as a similar level replacement with the same SSOP-5 package. Verify that the BD5236G-1's adjustable delay and different hysteresis characteristics are acceptable for the specific circuit design before substitution.