BD45452G-TR

Overview

The BD45452G-TR is a high-precision voltage detector IC from the BD45xxx series by ROHM Semiconductor. It features a fixed reset delay timer of 200 ms and an under-voltage detection threshold of 4.5 V with ±1% accuracy. The device operates within a supply voltage range of 0.95 V to 10 V and consumes low current, typically 0.80 µA in active mode. It provides an open-drain output in an SSOP-5 package.

Feature Summary

• Built-in counter timer delay circuit eliminates the need for external capacitors for delay time setting.
• High detection accuracy of ±1% ensures reliable monitoring of power supply voltages.
• Low current consumption design supports battery-powered applications effectively.

Applications

• Processor supervisor circuits requiring precise voltage monitoring.
• Portable devices where low standby current is critical.
• Embedded systems needing fixed delay reset generation without external components.

Procurement Notes

Verify the specific suffix G-TR against the official datasheet to confirm packaging and tape-and-reel specifications. Confirm RoHS compliance status directly with the manufacturer or authorized distributors. Ensure the part number matches the exact voltage threshold and delay requirements for your design before procurement.

Selection Notes

Select this component when a fixed 200 ms delay is required alongside a 4.5 V detection threshold. Compare static current values against system power budgets. Verify that the open-drain output configuration aligns with the pull-up requirements of the connected logic interface.

Part Context

This part belongs to the BD45xxx series of voltage detectors. It shares the SSOP-5 package and general architecture with other variants in the family, differing primarily in detection voltage thresholds and delay timer configurations. It serves as a dedicated supervisory solution for microcontrollers and memory devices.

Replacement Considerations

BD45452G is listed as a similar level replacement with the same package. Verify electrical parameters such as detection voltage and delay time match exactly. Check if the non-trailing version meets the same taping and packing requirements for automated assembly.