BD5243G-TR

Overview

The BD5243G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring supply voltages in electronic circuits. It features an adjustable delay timer and operates within a reset active voltage range of 0.95 V to 10 V. The device has a typical under-voltage detection threshold of 4.3 V with a precision of ±1%. It utilizes an open-drain output type with a low-active reset state. The component is housed in an SSOP-5 package and supports a maximum operating temperature of 105°C. Circuit current consumption is specified at 0.85 μA when the detection voltage is set to 4.8 V.

Feature Summary

• Features an adjustable delay timer for customizable reset timing sequences.
• Provides high-precision voltage detection with a typical accuracy of ±1%.
• Utilizes an open-drain output structure compatible with various logic families.
• Operates over an extended industrial temperature range up to 105°C.

Applications

• Microprocessor system supervision
• Portable equipment power management
• Battery-operated device monitoring

Procurement Notes

Verify that the specific order matches the BD5243G-TR part number, as this component is designated as Not Recommended for New Designs (NRND). Confirm availability through authorized distributors, noting that stock levels may be limited due to its end-of-life status. Ensure compatibility with the recommended replacement BD5243G-1 if designing new systems. Check RoHS compliance documentation for regulatory requirements.

Selection Notes

Select this component for existing designs requiring a 4.3 V threshold with adjustable delay characteristics. Consider the BD5243G-1 as a direct pin-compatible alternative for new projects, offering improved current consumption and wider voltage ranges. Evaluate the open-drain output requirement against system interface needs. Verify that the SSOP-5 package fits the available PCB footprint constraints.

Part Context

This part belongs to the BD52 series of voltage detectors from ROHM Semiconductor. These devices are standard CMOS supervisory circuits intended for reliable power monitoring. The BD5243G variant specifically targets applications needing precise threshold detection with flexible timing control via external components.

Replacement Considerations

The BD5243G-1 is officially listed as a similar level replacement with the same pinout and package. It offers comparable functionality with updated electrical specifications such as lower circuit current and adjusted voltage ranges.