BD5245G-2MTR

Overview

The BD5245G-2MTR is a single-channel voltage detector IC from Rohm Semiconductor's Nano Energy series, designed for automotive applications. It features an open-drain output and operates within a supply voltage range of 0.8V to 6V. The device detects under-voltage conditions with a typical threshold of 4.5V and maintains a precision of ±2.5%. It includes an adjustable reset delay timer controlled by an external capacitor, ensuring timing accuracy within ±30% across the operating temperature range of -40°C to 105°C. The circuit consumes low current, typically 0.23µA when active and 0.27µA when inactive.

Feature Summary

• Adjustable reset delay time set via external capacitor
• High detection voltage precision of ±2.5%
• Low power consumption suitable for battery monitoring
• Automotive grade qualification (AEC-Q100 Grade 1)

Applications

• Microprocessor reset circuits in automotive systems
• Battery voltage monitoring for electric vehicles
• Power management supervision in electronic control units

Procurement Notes

Verify the specific suffix '2M' confirms the 4.5V threshold and open-drain configuration against the official datasheet. Confirm AEC-Q100 Grade 1 compliance if automotive functional safety analysis is required. Ensure the SSOP5 package matches the PCB footprint. Check RoHS status for environmental compliance requirements.

Selection Notes

Select this component when a precise 4.5V detection threshold is required for automotive voltage supervision. The adjustable delay feature allows customization for system startup sequences. Consider the low standby current for energy-efficient designs. Verify that the open-drain output interface is compatible with the downstream logic levels.

Part Context

This part belongs to the BD52xx-2M series of CMOS reset ICs. It shares the SSOP5 package and adjustable delay architecture with other variants like BD5215G-2MTR and BD5225G-2MTR, differing primarily in the fixed detection voltage threshold. The series is optimized for automotive reliability and low power consumption.

Replacement Considerations

BD52E45G-1TR is listed as a parameter-equivalent replacement with the same pinout and package, though it may have different current consumption characteristics.