BD4827G-TR

Overview

The BD4827G-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring single power supply lines. It features an open-drain output and operates within a supply voltage range of 1.2 V to 10 V. The device provides a precise detection threshold of 2.7 V with ±1% accuracy. It includes a reset delay timer of 100 µs and consumes a typical operating current of 900 nA. The component is housed in a compact SSOP-5 package and supports an industrial temperature range from -40°C to +105°C.

Feature Summary

• High-precision voltage detection with ±1% threshold accuracy
• Ultra-low power consumption suitable for battery-operated systems
• Integrated reset delay timer for stable system initialization
• Open-drain output configuration for flexible logic interfacing

Applications

• Portable electronic devices requiring low standby current
• Battery-powered equipment needing reliable under-voltage protection
• Embedded systems utilizing CMOS logic families
• Industrial control modules operating in wide temperature environments

Procurement Notes

Verify the specific suffix and package variant against the official datasheet before procurement, as manufacturing updates may occur. Confirm that the intended application environment remains within the specified electrical limits and thermal ratings. Check for any regional distribution restrictions or end-of-life notices associated with this part number to ensure long-term supply chain stability.

Selection Notes

Select this component when a fixed 2.7 V threshold is required for single-channel supervision. Consider the open-drain output capability if external pull-up resistors are needed for voltage level translation. Evaluate the 100 µs reset delay against the target system's startup timing requirements. Ensure the SSOP-5 footprint aligns with existing PCB layout constraints and assembly capabilities.

Part Context

This part belongs to the BD48 series of standard voltage detectors, which are characterized by high accuracy and low current consumption. The series offers various detection voltages to suit different power rail specifications. The BD4827G-TR specifically targets applications requiring a 2.7 V trip point with robust performance across industrial temperature ranges.

Replacement Considerations

The BD5227G-1 is documented as a replacement with the same SSOP-5 package. Verify compatibility regarding reset delay adjustability and output current specifications before substitution.