BD46231G-TR

Overview

The BD46231G-TR is a voltage detector supervisory circuit manufactured by ROHM Semiconductor. It features a fixed threshold detection voltage of 2.3 V with a precision of ±1%. The device provides a CMOS output type and includes a manual reset function. It operates within a supply voltage range of 0.95 V to 10 V. The reset delay timer is fixed at 100 msec. The component supports an operating temperature range from -40°C to +105°C. It is housed in an SSOP-5 package.

Feature Summary

• Fixed 100 msec reset delay timer for stable power-on sequencing
• Manual reset capability for system control flexibility
• CMOS output interface compatible with digital logic circuits

Applications

• Microprocessor reset circuits
• Battery-powered equipment monitoring
• Portable devices requiring low standby current

Procurement Notes

Verify the obsolete status and last-time-buy availability through official ROHM channels before design finalization. Confirm that the SSOP-5 package dimensions match the target PCB footprint. Ensure the 2.3 V threshold aligns with the specific system voltage requirements, as this parameter is fixed and non-adjustable.

Selection Notes

Select this component when a fixed 2.3 V threshold and 100 msec delay are required. The manual reset feature distinguishes it from auto-reset variants. Consider the SSOP-5 package size constraints. Verify compatibility with the system's CMOS logic levels and operating temperature range up to 105°C.

Part Context

This part belongs to the BD46 series of voltage detectors. It is designed for applications requiring precise voltage monitoring with minimal current consumption. The BD46231G-TR specifically offers a fixed threshold and delay, differing from adjustable or watchdog-integrated models in the same family.

Replacement Considerations

BD5223G-1TR is listed as a similar level replacement with the same SSOP-5 package. Verify electrical parameter equivalence, particularly the threshold voltage and delay time, before substitution.