BD5349G-TR

Overview

The BD5349G-TR is a CMOS voltage detector IC from ROHM Semiconductor, designed for processor supervision in automotive applications. It features an adjustable reset delay timer and operates within a wide supply voltage range of 0.8V to 6V. The device provides a typical detection voltage of 4.9V with high precision of ±2.5%. It consumes ultra-low current, with circuit current at 0.23µA (ON) and 0.27µA (OFF). The component is AEC-Q100 qualified and housed in a compact SSOP5 package.

Feature Summary

• Adjustable reset delay timer allows customization via external capacitor
• Ultra-low power consumption suitable for battery-operated systems
• Automotive-grade reliability with AEC-Q100 qualification
• High detection voltage precision ensures stable system resets

Applications

• Processor supervisor circuits in automotive electronic control units
• Voltage monitoring for microcontroller power supplies
• Battery-powered device protection against under-voltage conditions

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging configuration. Confirm AEC-Q100 compliance requirements match target automotive standards. Ensure design-in supports the SSOP5 footprint and thermal characteristics. Check latest datasheet for any revisions affecting electrical parameters or recommended operating conditions.

Selection Notes

Select this component when adjustable delay timing is required for reset sequences. Suitable for applications needing low standby current and high accuracy. Compare with open-drain output variants if logic level compatibility differs. Verify input voltage range covers the system's operational spectrum without exceeding maximum ratings.

Part Context

Part of the BD53xx-2M series of nano energy™ CMOS reset ICs. This series integrates high-precision voltage detectors with adjustable delay circuits using CMOS technology. Designed for automotive use, it offers flexibility in reset timing configuration while maintaining low power consumption across the industrial temperature range.

Replacement Considerations

BD5349G-2MTR is the direct equivalent part number with identical specifications and functionality.