BD5330G-TR

Overview

The BD5330G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for supervising power supply voltages. It features a fixed detection threshold of 3.0 V with an accuracy of ±1%. The device operates within a supply voltage range of 0.95 V to 10 V and provides a low-active CMOS output. It includes an adjustable reset delay timer controlled by an external capacitor, allowing for flexible timing configurations. The IC consumes ultra-low current, typically 0.85 µA, and functions reliably across an extended temperature range of -40°C to +105°C. Packaged in a compact SSOP-5 format, it is suitable for space-constrained applications requiring precise voltage monitoring.

Feature Summary

• CMOS output type with low-active reset signal
• Adjustable reset delay time via external capacitor
• High detection voltage accuracy of ±1%
• Ultra-low current consumption for energy efficiency

Applications

• Microcontroller system reset circuits
• Logic circuit power supply supervision
• Battery-powered device voltage monitoring
• Embedded systems requiring reliable power-on reset

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this part may be restricted for new designs. Ensure the SSOP-5 package matches your PCB footprint requirements. Validate that the 3.0V threshold aligns with your system's voltage specifications before procurement.

Selection Notes

Select this component when a fixed 3.0V threshold is required with high precision. The adjustable delay feature allows customization for specific startup sequences. Consider the CMOS output drive capability for connecting to downstream logic. Verify that the operating voltage range covers your system's minimum and maximum supply levels. Evaluate thermal performance within the specified temperature range for your application environment.

Part Context

This part belongs to the BD53xx series of voltage detectors from ROHM Semiconductor. The series offers various detection voltages in 0.1V increments. The BD5330G-TR specifically targets applications needing a 3.0V threshold. It shares common features like adjustable delay and low current consumption with other members of the family, differing primarily in its fixed detection voltage and output characteristics.

Replacement Considerations

BD5230G-1TR: Same pinout and package, but features N-channel open-drain output instead of CMOS. Check output compatibility. BD53E30G-TR: Similar functionality with programmable delay, but verify if the 'E' suffix indicates any functional differences or obsolescence status compared to the standard BD5330G-TR.