BD4830G-TR

Overview

The BD4830G-TR is a standard voltage detector manufactured by ROHM Semiconductor, designed for monitoring single-input power supply voltages. It features a typical under-voltage detection threshold of 3.0V with a precision of ±1%. The device operates within a reset active voltage range of 0.95V to 10V and supports a maximum supply voltage of 7V, with a minimum operating voltage of 900mV. It utilizes an open-drain output type and lacks manual reset or watchdog timer functions. The component is housed in an SSOP-5 package, suitable for surface mount installation, and maintains accuracy within 1% across an industrial temperature range from -40°C to +125°C.

Feature Summary

• Provides precise under-voltage detection with high accuracy for reliable system supervision
• Features low power consumption characteristics suitable for battery-operated applications
• Utilizes an open-drain output configuration for flexible interface compatibility

Applications

• Monitoring power supply voltages in portable electronic devices
• Supervising microprocessor reset lines in embedded systems
• Ensuring stable operation in industrial control equipment

Procurement Notes

Verify the current supply status before procurement as this component may be classified as not recommended for new designs. Confirm that the SSOP-5 package dimensions align with existing PCB footprints. Ensure compliance with RoHS directives if required by your manufacturing standards. Cross-reference the specific ordering suffix to confirm tape-and-reel packaging specifications. Validate that the 3.0V threshold meets the exact requirements of your target circuit design.

Selection Notes

Select this component when a fixed 3.0V detection threshold is required without additional features like watchdog timers or manual resets. Consider the open-drain output capability for interfacing with various logic families. Evaluate the low standby current consumption against system power budgets. Verify that the operating voltage range covers the expected input variations. Compare performance metrics with alternative detectors if adjustable thresholds are needed.

Part Context

This part belongs to the BU4830/BD4830 series of standard voltage detectors from ROHM Semiconductor. These components are engineered for general-purpose voltage monitoring tasks. The series offers various detection thresholds to accommodate different supply rail requirements. The BD4830G variant specifically targets cost-sensitive applications while maintaining robust performance characteristics.

Replacement Considerations

The BD5230G-1 is listed as a similar level replacement with the same package type. Note that the BD5230G-1 features an adjustable delay timer, which differs from the non-delayed output of the BD4830G-TR. Verify functional compatibility regarding the reset delay feature before substitution.