BU7230G-TR

Comparators Overview

The BU7230G-TR is a single-channel analog comparator manufactured by ROHM Semiconductor, featuring an open-drain output configuration. It operates within a supply voltage range of +1.8V to +5.5V on a single power source. Key electrical parameters include a typical circuit current of 0.005mA, a maximum input offset voltage of 11mV, and a typical input bias current of 0.001nA. The device exhibits a typical response time of 1.7µs, a voltage gain of 90dB, and a typical PSRR of 80dB. It supports an output current of 6mA and functions across an operating temperature range from -40°C to 85°C.

Comparators Feature Summary

• Low power consumption with minimal input bias current for efficient operation in low-voltage environments
• Full-swing input voltage range extending from VSS to VDD for broad signal compatibility
• Open-drain output structure providing flexibility in interfacing with various logic levels

Comparators Applications

• Battery-powered portable electronic devices requiring low quiescent current
• Threshold detection circuits in consumer electronics
• Signal conditioning stages in low-voltage sensor interfaces

Comparators Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when sourcing. Confirm the manufacturer is ROHM Semiconductor to ensure component authenticity. Check the datasheet for any updates regarding automotive qualification status, as standard grades may not be suitable for all vehicle applications. Ensure the SSOP-5 package dimensions match the PCB footprint requirements during procurement planning.

Comparators Selection Notes

Select this component when a single comparator with open-drain output is required for low-voltage systems. Consider the 1.7µs response time for speed-sensitive applications. Evaluate the 11mV max input offset voltage against system accuracy needs. Compare the 0.005mA typical current draw against other comparators if power efficiency is critical. Verify the -40°C to 85°C operating range meets environmental specifications.

Comparators Part Context

The BU7230G-TR belongs to the BU7230/BU7231 series of CMOS low-voltage comparators from ROHM. This family integrates input full-swing capabilities with low power consumption. The BU7230 variant specifically provides a single channel with open-drain output, distinguishing it from push-pull output versions like the BU7231. It is designed for integration into compact circuits where space and power are constrained.

Comparators Replacement Considerations

The BU7230SG-TR is a similar part offering an extended operating temperature range up to 105°C while maintaining the same pinout and electrical characteristics. Verify that the higher temperature rating aligns with application requirements before substitution.