BD5233G-TR

Overview

The BD5233G-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It features a fixed threshold voltage of 3.3 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.95 V to 10 V and provides an open-drain output type. It includes a programmable reset delay timer but lacks manual reset, watchdog timer, or battery backup switch functionalities. The component is housed in a compact SSOP-5 package, suitable for surface mount installation, and supports an operating temperature range from -40°C to +105°C.

Feature Summary

• CMOS technology ensures low power consumption and high reliability for voltage supervision tasks.
• Open-drain output configuration allows flexible interfacing with various logic families.
• Programmable reset delay timer enables customization of response timing relative to voltage thresholds.

Applications

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

Procurement Notes

Verify the RoHS compliance status through official documentation before procurement. Confirm the supply status as Not Recommended for New Designs (NRND) to assess long-term availability risks. Ensure the SSOP-5 package dimensions match the target PCB footprint requirements. Cross-reference the specific ordering suffix to confirm tape and reel packaging specifications.

Selection Notes

Select this component when a fixed 3.3 V detection threshold is required for single-channel monitoring. Consider the open-drain output capability if level shifting or wired-OR connections are necessary. Evaluate the programmable delay feature against system startup timing requirements. Verify that the 10 V maximum input voltage aligns with the highest expected supply rail in the application design.

Part Context

This part belongs to the BD52 series of voltage detectors from ROHM Semiconductor. It shares functional similarities with other members like the BD5223G-TR and BD52E33G, differing primarily in threshold voltage and precision specifications. The series is characterized by CMOS construction and SSOP-5 packaging, targeting cost-sensitive consumer and industrial electronics applications requiring reliable power supervision.

Replacement Considerations

The BD52E33G-TR is documented as a similar level replacement with the same pinout and package. Verify compatibility regarding reset delay adjustability and output current characteristics before substitution.