BD46325G-TR

Overview

The BD46325G-TR is a voltage detector IC from the BD46xxx series, designed for processor supervision. It features a fixed reset delay timer of 50 milliseconds and an under-voltage detection threshold of 3.2V with ±1% precision. The device operates within a supply voltage range of 0.95V to 10V and consumes a typical circuit current of 0.80μA at Vdet=4.8V. It provides an active-low CMOS output in a compact SSOP-5 package.

Feature Summary

• Integrates a built-in counter timer delay circuit, eliminating the need for external capacitors for delay time setting.
• Delivers high-accuracy voltage detection with ±1% precision for reliable system monitoring.
• Maintains low current consumption suitable for battery-powered applications.

Applications

• Processor supervisor circuits
• Microcontroller reset systems
• CPU power monitoring

Procurement Notes

Verify the specific suffix G-TR against the manufacturer's official datasheet to confirm the tape-and-reel packaging configuration. Ensure the part number matches the exact detection voltage and delay specifications required for the design. Cross-reference with ROHM Semiconductor documentation to validate availability status and RoHS compliance details before procurement.

Selection Notes

Select this component when a fixed 50ms reset delay is required without external timing components. The 3.2V threshold suits systems operating near this voltage level. Verify that the active-low output polarity aligns with the target processor's reset input requirements. Confirm the SSOP-5 package fits the available PCB footprint constraints.

Part Context

This part belongs to the BD46xxx series of voltage detectors manufactured by ROHM Semiconductor. The series is characterized by high accuracy and low current consumption. The BD46325 variant specifically targets applications requiring a 3.2V detection threshold with a fixed internal delay, distinguishing it from adjustable delay or different threshold variants within the same family.

Replacement Considerations

BD5232G-1 is listed as a similar level replacement with the same package but offers adjustable delay instead of fixed delay. Verify functional compatibility regarding the fixed versus adjustable delay requirement before substitution.