BD5227G-TR

Overview

The BD5227G-1TR is a CMOS voltage detector IC from Rohm Semiconductor, featuring an adjustable delay timer controlled by an external capacitor. It provides a typical under-voltage detection threshold of 2.7V with high precision accuracy of ±0.9%. The device utilizes an N-channel open-drain output and operates within a reset active voltage range of 0.8V to 6V. It supports surface-mount installation in a compact SSOP5 package and functions across a temperature range of -40°C to 85°C.

Feature Summary

• Adjustable delay time setting via external capacitor
• Ultra-low current consumption for power efficiency
• High accuracy voltage detection with ±0.9% precision

Applications

• Microcontroller reset circuits requiring specific timing delays
• Logic circuit supervision with adjustable response times
• Battery-powered systems needing low quiescent current

Procurement Notes

Verify the exact part number suffix, as the standard datasheet references BD5227G-1TR. Confirm supply status as this component may be designated for existing customers only. Ensure compatibility with the required delay capacitance and check RoHS compliance documentation before finalizing procurement orders.

Selection Notes

Select this component when an adjustable reset delay is necessary rather than a fixed delay. Compare current consumption specifications against other series members like BD53xx if CMOS output is preferred over open-drain. Verify that the operating voltage range covers the system's minimum requirements during brown-out conditions.

Part Context

This voltage detector belongs to Rohm's nano energy™ series designed for ultra-low power applications. It serves as a successor or alternative to older fixed-delay detectors like the BU45L274G. The device integrates precise monitoring capabilities into a small footprint suitable for portable electronics and embedded control systems.

Replacement Considerations

BD52E27G is listed as a similar level replacement with the same pinout and package.