BD5229FVE-TR

Overview

The BD5229FVE-TR is a CMOS voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-channel power supply voltages. It operates within a supply voltage range of 0.95 V to 10 V and features an adjustable under-voltage detection threshold with a typical value of 2.9 V. The device provides high precision detection accuracy of ±1% and includes an adjustable reset delay timer to prevent false triggering during power-up transients. It utilizes an open-drain output configuration that remains active low. The component is housed in a compact VSOF5 package (1.6x1.6 mm) and supports operation across an extended industrial temperature range from -40°C to 105°C.

Feature Summary

• Adjustable external resistor setting allows precise customization of the under-voltage detection threshold voltage.
• Open-drain output structure enables flexible interfacing with various logic families while maintaining low active state signaling.
• Programmable reset delay timer functionality mitigates system instability caused by slow power ramp-up or transient noise.

Applications

• Monitoring microprocessor and microcontroller power rails for reliable system initialization
• Supervising battery-powered equipment to trigger low-battery warnings before critical failure
• Protecting embedded systems against brown-out conditions during dynamic load changes

Procurement Notes

Verify the specific suffix and tape-and-reel quantity requirements against current distributor listings, as availability may vary. Confirm RoHS compliance status and lead times directly with authorized suppliers due to potential lifecycle transitions. Ensure the ordering part number matches the exact package variant required for your PCB footprint design.

Selection Notes

Select this component when a customizable detection threshold is required rather than fixed internal values. The adjustable delay feature makes it suitable for applications with varying power-up characteristics. Consider the VSOF5 package dimensions for space-constrained designs requiring surface-mount integration without manual reset capabilities.

Part Context

This part belongs to the BD52xx series of simple reset circuits and voltage detectors from ROHM Semiconductor. These devices are engineered for cost-effective power management solutions in consumer electronics and industrial control systems. The FVE designation indicates the specific package type and pinout configuration used in this generation of supervisory ICs.

Replacement Considerations

BD5229G-1 is documented as a recommended replacement with the same pinout. Verify electrical parameter compatibility, particularly regarding output drive current and operating voltage ranges, before implementing any substitution in existing designs.