BD46275G-TR

Overview

The BD46275G-TR is a voltage detector with a fixed delay time, manufactured by Rohm Semiconductor. It features an under-voltage detection threshold of 2.7V typical and a precision of ±1%. The reset active voltage range spans from 0.95V to 10V. It utilizes a CMOS output type with a fixed reset delay timer of 50ms and operates in a low active state. The device supports manual reset functionality but lacks a watchdog timer. Circuit current consumption is 0.80μA (ON) and 0.85μA (OFF) at VDET=4.8V. It is housed in an SSOP-5 package and operates within a temperature range of -40°C to +105°C.

Feature Summary

• Features a fixed 50ms reset delay timer for stable power-up sequencing.
• Supports manual reset input for system control flexibility.
• Provides high precision voltage detection with ±1% accuracy.
• Operates with ultra-low current consumption suitable for battery-powered applications.

Applications

• Portable electronic devices requiring reliable power monitoring
• Microcontroller system supervision circuits
• Battery-operated equipment with low power constraints

Procurement Notes

Verify the obsolete status and last-time-buy availability through official Rohm channels before procurement. Confirm that the replacement BD5227G-1TR meets all electrical and pinout requirements for your specific design implementation. Ensure compliance with RoHS directives and check for any regional distribution restrictions applicable to this component series.

Selection Notes

Select this component when a fixed delay time is sufficient for system startup requirements. Consider the BD5227G-1TR as a direct replacement if available supply is critical. Evaluate the manual reset feature against automatic reset needs. Verify that the 2.7V threshold aligns with the target supply voltage range and that the SSOP-5 package fits the PCB layout constraints.

Part Context

This part belongs to the BD46 series of voltage detectors from Rohm Semiconductor. It is designed for supervisory applications where precise voltage monitoring and controlled reset timing are essential. The series typically offers low power consumption and compact packaging options suitable for modern portable electronics and industrial control systems requiring reliable power management.

Replacement Considerations

BD5227G-1TR is a confirmed substitute with similar package and function.