BA8391G-TR

Comparators Overview

The BA8391G-TR is a single-channel analog comparator manufactured by ROHM Semiconductor, housed in an SSOP-5 surface-mount package. It operates within a supply voltage range of 2 V to 36 V and draws a typical operating current of 300 µA. The device features an open-collector output capable of sourcing 16 mA. Key electrical specifications include a maximum input offset voltage of 7 mV, an input bias current of 250 nA, and a response time of 1.3 µs. It functions reliably across a temperature range of -40°C to +85°C.

Comparators Feature Summary

• Ground-sense input capability allowing operation with inputs at or near the negative supply rail.
• Wide single-supply voltage tolerance supporting high-voltage applications up to 36 V.
• Low power consumption design suitable for battery-powered systems.

Comparators Applications

• Current monitoring circuits
• Battery monitoring systems
• General-purpose voltage threshold detection

Comparators Procurement Notes

Verify component authenticity through authorized channels due to the NRND status. Confirm that the SSOP-5 package dimensions match the target PCB footprint. Ensure the open-collector output configuration aligns with the downstream logic requirements, as pull-up resistors are necessary for proper signal levels. Check RoHS compliance documentation for specific regional regulatory needs.

Comparators Selection Notes

Select this component when ground-referenced input signals are required without level shifting. The wide supply range accommodates both low-voltage logic and higher voltage industrial rails. Consider the 1.3 µs response time against system speed requirements. The open-collector output necessitates external pull-up components, which may impact board space and design complexity compared to push-pull alternatives.

Comparators Part Context

This part belongs to the BA8391 series of general-purpose analog comparators from ROHM. It is designed for cost-sensitive applications requiring basic comparison functionality with minimal external components. The SSOP-5 package provides a compact solution for space-constrained designs. The series emphasizes reliability in industrial environments with its specified temperature range.

Comparators Replacement Considerations

The BD5210G-1 is documented as a replacement with the same pinout and package. Verify functional equivalence regarding output type and electrical parameters before substitution.