BD5323G-TR

Overview

The BD5323G-TR is a voltage detector IC from ROHM Semiconductor, designed for monitoring power supply voltages. It features an adjustable reset delay timer controlled by an external capacitor and provides a CMOS output type. The typical under-voltage detection voltage is 2.3V with a precision of ±1%. The reset active voltage range spans from 0.95V to 10V. The circuit current is 0.85μA when Vdet=4.8V. It operates within a temperature range of -40°C to +105°C and is housed in an SSOP-5 package.

Feature Summary

• Adjustable reset delay time controlled by an external capacitor
• CMOS output type for direct logic interface
• High accuracy with ±1% detection voltage precision
• Low current consumption suitable for battery-powered applications

Applications

• Processor supervisor circuits
• Microcontroller system reset generation
• Battery-operated device power monitoring

Procurement Notes

Verify the specific ordering suffix and packaging configuration against the latest manufacturer datasheet before procurement. Confirm that the component status aligns with project requirements, as availability may be subject to change. Ensure compatibility with existing design constraints regarding the SSOP-5 package dimensions and thermal characteristics.

Selection Notes

Select this component when an adjustable delay time is required for reset signal generation. The CMOS output simplifies interfacing with digital logic compared to open-drain alternatives. Consider the ±1% precision and wide operating voltage range for robust performance in varying supply conditions. Verify that the external capacitor selection meets the desired delay timing specifications.

Part Context

This part belongs to the BD53xx series of voltage detectors, which are characterized by high accuracy and low current consumption. The series includes devices with various detection voltages and output types. The BD5323G specifically offers a 2.3V detection threshold with an adjustable delay feature, distinguishing it from fixed-delay or open-drain variants in the broader product family.

Replacement Considerations

The BD5223G-1 is listed as a similar level replacement with the same pinout and package. Verify functional equivalence, particularly regarding the adjustable delay mechanism and output drive capability, before substituting.