BD5329G-2MTR

Overview

The BD5329G-2MTR is a Nano Energy™ adjustable delay time CMOS reset IC manufactured by ROHM Semiconductor. It features a typical under-voltage detection voltage of 2.9 V with ±2.5% precision. The device operates within a reset active voltage range of 0.8 V to 6 V and utilizes a CMOS output type. It consumes 0.23 µA in the ON state and 0.27 µA in the OFF state. The component is qualified to AEC-Q100 Grade 1 standards, ensuring reliability for automotive applications across an operating temperature range of -40°C to +105°C.

Feature Summary

• Nano Energy™ technology enables ultra-low power consumption suitable for battery-operated systems.
• Adjustable reset delay timer allows customization via external capacitor connection.
• Automotive-grade qualification ensures functional safety support and high reliability.

Applications

• Automotive electronic control units requiring precise voltage supervision
• Battery-powered devices needing extended operational life through low current drain
• Industrial systems demanding reliable reset signals under varying load conditions

Procurement Notes

Verify the specific suffix '2MTR' corresponds to the SSOP-5 tape-and-reel packaging configuration. Confirm that the 2.9V threshold aligns with the target circuit's undervoltage requirements. Ensure compatibility with the intended external capacitor values for delay adjustment. Check for RoHS compliance documentation if required by local regulations.

Selection Notes

Select this model when a CMOS output is preferred over open-drain configurations for direct logic interfacing. The 2.9V threshold suits applications monitoring 3.3V or similar nominal supply rails. Consider the adjustable delay feature if system startup sequencing requires specific timing margins. Verify that the SSOP-5 package fits the available PCB footprint constraints.

Part Context

This component belongs to the BD53xxG-2M series of Nano Energy™ CMOS reset ICs. It complements the BD52xxG-2M series, which offers open-drain outputs. Both series share similar low-power characteristics and adjustable delay capabilities but differ in output stage architecture. The series is designed to meet stringent automotive quality standards while minimizing standby power consumption.

Replacement Considerations

The BD5329G-2C is listed as a similar level replacement with the same pinout and package. Verify that the ±3% precision of the BD5329G-2C meets the design tolerance requirements compared to the ±2.5% precision of the original part.