BD5343G-TR

Overview

The BD5343G-TR is a voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply lines. It features a typical under-voltage detection threshold of 4.3 V with a precision of ±1%. The device operates within a reset active voltage range of 0.95 to 10 V and utilizes a CMOS output type. It supports an adjustable delay timer and maintains a low active circuit current of 0.85 μA at the specified detection voltage. The component is housed in an SSOP5 package and functions reliably across a temperature range of -40°C to 105°C.

Feature Summary

• CMOS output interface providing low-level reset signaling
• Adjustable reset delay timer functionality for timing control
• High accuracy voltage detection with ±1% precision
• Low power consumption suitable for battery-operated systems

Applications

• Portable electronic devices requiring low standby current
• Microprocessor system power supply supervision
• Battery-powered equipment voltage monitoring
• General-purpose supervisory circuits in consumer electronics

Procurement Notes

Verify the obsolete status before procurement as this part is Not Recommended for New Designs. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing designs rather than initiating new projects. Check RoHS compliance documentation if required for specific regulatory standards. Validate lead times and authenticity due to end-of-life status.

Selection Notes

Select this component only for maintenance or replacement of existing designs where the BD5343G-TR was originally specified. Consider the BD5243G-1 as a recommended alternative for new designs due to similar pinout and package compatibility. Evaluate the open-drain output of the substitute against the CMOS output of the original part to ensure signal integrity matches the application requirements.

Part Context

This component belongs to the BD53 series of voltage detectors from ROHM Semiconductor. It is categorized under Power Management ICs (PMIC) specifically as a Supervisory Circuit. The device is part of a family that includes variants with different detection voltages and output types, serving as a critical element for ensuring stable operation in digital logic systems.

Replacement Considerations

The BD5243G-1 is identified as a recommended replacement with the same pinout and package. Note that the substitute features an open-drain output instead of CMOS, which may require external pull-up resistors. Verify electrical characteristics such as hysteresis and output current capabilities to ensure functional equivalence in the target application.