BD45435G-TR

Overview

The BD45435G-TR is a CMOS voltage detector IC from the ROHM BD45 series, designed for high-accuracy power supply monitoring. It features a fixed threshold voltage of 4.3 V with ±1.0% precision and an overvoltage detection threshold of 4.343 V. The device operates within a supply voltage range up to 10 V and includes a manual reset function with a fixed delay time of 50 ms. It draws a typical static current of 800 nA and supports an operating temperature range from -40°C to +105°C. The component is housed in a compact SSOP-5 package.

Feature Summary

• Provides highly accurate voltage detection with ±1.0% threshold precision
• Integrates a manual reset function with a fixed 50 ms delay timer
• Features low power consumption with 800 nA static current draw
• Supports wide industrial operating temperatures from -40°C to +105°C

Applications

• Embedded system power supply supervision
• Microcontroller reset circuit generation
• Industrial control board voltage monitoring
• Portable electronic device power management

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to obsolete status. Confirm RoHS compliance documentation matches specific production batches. Ensure storage conditions adhere to moisture sensitivity levels specified in the datasheet. Validate pinout compatibility with existing PCB footprints before integration. Request lot traceability information for quality assurance purposes.

Selection Notes

Select this component when precise voltage monitoring at 4.3 V is required without watchdog functionality. Consider the fixed 50 ms delay for applications where immediate reset is not critical. Evaluate the SSOP-5 package constraints against available board space. Compare static current requirements against battery-operated system budgets. Verify that manual reset capability aligns with system recovery protocols.

Part Context

This part belongs to the BD45 series of voltage detectors from ROHM Semiconductor, which are designed for general-purpose power supply monitoring. The series offers various threshold voltages and packages, with the BD45435G-TR specifically providing a 4.3 V detection point. These ICs are commonly used in consumer electronics and industrial equipment requiring reliable power supervision.

Replacement Considerations

The BD5245G-1 is listed as a similar level replacement with the same pinout and package. Verify electrical specifications and availability status before substitution. Check for any differences in delay timing or output characteristics.