BD5229G-1TR

Overview

The BD5229G-1TR is a voltage detector from the BD52 series manufactured by ROHM Semiconductor. It features an adjustable delay timer and an open-drain output type. The device monitors a single input with a typical under-voltage detection threshold of 2.9V and a precision of ±0.9%. It operates within a reset active voltage range of 0.8V to 6V. The circuit current is 0.23μA in the ON state and 0.27μA in the OFF state at VDET=4.8V. Hysteresis is set at VDET x 0.05. It supports low-level output currents of 1mA and high-level of 2mA. The component functions between -40°C and 85°C, housed in an SSOP5 package.

Feature Summary

• Adjustable delay timer for customizable reset timing
• Open-drain output configuration for flexible interfacing
• High detection accuracy with ±0.9% precision
• Low power consumption suitable for battery-operated systems

Applications

• Microprocessor reset circuits
• Battery-powered device supervision
• Embedded system voltage monitoring
• Portable electronic equipment protection

Procurement Notes

Verify the specific ordering suffix TR to confirm tape-and-reel packaging compatibility with automated assembly lines. Ensure the design accommodates the SSOP5 footprint dimensions and thermal requirements. Confirm that the 0.8V to 6V operating range aligns with the target supply voltage profile. Check for RoHS compliance documentation if required by regional regulations. Validate that the open-drain output interface matches the downstream logic level requirements.

Selection Notes

Select this component when an adjustable reset delay is necessary to prevent false triggering during power-up transients. The open-drain output allows for wired-OR connections or level shifting. Consider the ±0.9% accuracy for applications requiring precise voltage thresholds. The low standby current makes it suitable for energy-efficient designs. Compare against fixed-delay alternatives if timing flexibility is not required.

Part Context

This part belongs to the BD52 series of voltage detectors, which are designed for supervisory applications in portable electronics. The BD5229G-1TR specifically offers adjustable delay capabilities, distinguishing it from fixed-delay variants. It is recommended for new designs, unlike its predecessor BD5229G which is not recommended for new use. The series focuses on low power consumption and compact packaging solutions.

Replacement Considerations

The BD5229G is listed as Not Recommended for New Designs, while the BD5229G-1TR is the recommended replacement with the same pinout and package.