BD46351G-TR

Overview

The BD46351G-TR is a single-channel voltage detector IC from ROHM Semiconductor, designed for supervisory circuit applications. It operates within a supply voltage range of 0.7 V to 7 V and features a fixed threshold voltage of 3.5 V with 1% accuracy. The device utilizes a CMOS output type and includes a manual reset function. It supports a maximum power dissipation of 540 mW and maintains low static current consumption of 500 nA. The component is rated for an operating temperature range from -40°C to +125°C and is housed in an SSOP-5 package.

Feature Summary

• Integrates a counter timer delay circuit internally, eliminating the need for external capacitors for delay time setting.
• Provides high-accuracy voltage detection with a specified tolerance of 1%.
• Features low current consumption characteristics suitable for battery-powered systems.

Applications

• Processor supervisor circuits requiring precise voltage monitoring
• Battery backup switching systems
• Portable electronic devices with strict power constraints

Procurement Notes

Verify the specific suffix and packaging configuration against the official datasheet before procurement. Confirm that the SSOP-5 package dimensions match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a fixed 3.5 V threshold is required for system supervision. Consider the low static current specification for energy-efficient designs. Verify compatibility with the system's logic levels due to the CMOS output structure. Ensure the thermal performance accommodates the specified power dissipation limits under worst-case conditions.

Part Context

This component belongs to the BD46xxx series of voltage detectors from ROHM Semiconductor. The series is characterized by high precision and low power consumption. Unlike some competitors, these devices integrate timing functions internally. The BD46351G-TR specifically targets applications needing reliable reset generation without complex external timing networks.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide or equivalent parameter matching services for valid alternatives.