BD46435G-TR

Overview

The BD46435G-TR is a voltage detector manufactured by ROHM Semiconductor, designed for supervisory circuit applications. It features a fixed threshold voltage of 4.3 V and an overvoltage threshold of 4.343 V. The device operates within a supply voltage range up to 10 V and maintains an accuracy of 1%. It includes a manual reset function and a fixed reset delay time of 50 ms. The static current consumption is 850 nA, with a maximum power dissipation of 540 mW. The component supports a CMOS output type and is housed in an SSOP-5 package, suitable for surface mount installation across temperatures from -40°C to +105°C.

Feature Summary

• Integrates a manual reset capability for direct user control of the supervision state.
• Provides a fixed delay timer to ensure stable voltage detection before asserting reset signals.
• Delivers high precision monitoring with a specified accuracy of 1% for reliable system protection.

Applications

• Supervisory circuits requiring precise voltage monitoring
• Embedded systems needing manual reset functionality
• Portable electronics utilizing low-power voltage detectors

Procurement Notes

Verify component authenticity through authorized channels due to end-of-life status. Confirm RoHS compliance details via official documentation. Ensure compatibility with existing PCB layouts given the SSOP-5 package dimensions. Review datasheet specifications for thermal management requirements under maximum power dissipation conditions prior to integration.

Selection Notes

Choose this component when a fixed 4.3 V threshold and manual reset are required. Consider the 50 ms delay for timing-sensitive applications. Evaluate the 850 nA static current against battery life constraints. Compare performance metrics with alternative parts if adjustable delays or different thresholds are needed.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. It is classified as a supervisory circuit intended for monitoring single-input voltage levels. The product is currently marked as discontinued or last-time buy, indicating limited future availability for new designs.

Replacement Considerations

BD5243G-1 is listed as a recommended replacement with the same SSOP-5 package. Verify electrical parameter differences such as adjustable delay versus fixed delay and output type variations before substitution.