BD46482G-TR

Overview

The BD46482G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It features a fixed under-voltage detection threshold of 4.8 V with a precision of ±1%. The device provides a CMOS output type and includes a manual reset function without a watchdog timer. It operates within a supply voltage range of 0.95 V to 10 V, with a fixed reset delay time of 200 ms. The component supports an operating temperature range from -40°C to +105°C and consumes a typical circuit current of 0.80 μA when active.

Feature Summary

• CMOS output interface for digital logic compatibility
• Manual reset capability for controlled system recovery
• Fixed 200 ms reset delay time for stable power-up sequencing
• High accuracy voltage detection with ±1% precision

Applications

• Microprocessor system supervision
• Battery-powered device monitoring
• Embedded controller reset generation
• Power management circuit protection

Procurement Notes

Verify the specific suffix G-TR against official ROHM documentation to confirm tape-and-reel packaging and RoHS compliance status. Confirm that the part number matches the exact threshold voltage and package variant required for the design. Check current availability status as this component may be subject to last-time-buy restrictions or end-of-life notices.

Selection Notes

Select this component when a fixed 4.8 V threshold and CMOS output are required for system supervision. Ensure the design accommodates the 200 ms fixed delay time during power-up sequences. Verify that the SSOP-5 package fits the PCB layout constraints. Consider the manual reset feature if external reset control is necessary for the application logic.

Part Context

This part belongs to the BD46 series of voltage detectors from ROHM Semiconductor. It is designed for low-power applications requiring precise voltage monitoring. The BD46482G-TR serves as a specific variant within the family, distinguished by its 4.8 V threshold and CMOS output configuration compared to other series members.

Replacement Considerations

BD5248G-1TR is listed as a recommended replacement with the same SSOP-5 package. Note differences in output type (Open Drain vs CMOS) and adjustable delay versus fixed delay.