LM8391G-LBTR

Overview

The LM8391G-LBTR is a single-channel analog comparator manufactured by ROHM Semiconductor, designed for industrial applications. It features ground-sense inputs and operates within a supply voltage range of 3.0 V to 36.0 V (single) or ±1.5 V to ±18.0 V (dual). Key electrical parameters include a typical supply current of 0.3 mA, an input offset voltage of up to 5 mV at 25°C, and a response time of 1.3 µs. The device supports an operating temperature range from -40°C to +125°C and is housed in an SSOP-5 package.

Feature Summary

• Operable from almost ground level for input signals
• Low supply current consumption suitable for power-sensitive designs
• Wide operating supply voltage range supporting single or dual power supplies
• Standard comparator pin assignments for easy integration

Applications

• Industrial equipment monitoring
• Current monitor circuits
• Battery monitor systems
• Multivibrator configurations

Procurement Notes

Verify the specific ordering suffix LBTR corresponds to the embossed tape and reel packaging format as defined in the manufacturer's documentation. Confirm that the component meets the required industrial application standards and long-term support guarantees specified for this product line before finalizing procurement specifications.

Selection Notes

Select this component when ground-sense input capability is required alongside low power consumption. Ensure the design accommodates the wide supply voltage range and verify thermal management strategies for the SSOP-5 package under maximum junction temperature conditions. Consider the standard pinout compatibility if replacing existing comparator designs.

Part Context

This part belongs to the LM8391G-LB series of high-gain, ground-sense input comparators. It is specifically designated for industrial market support with guaranteed long-term availability. The device integrates a differential input stage and reference current supply within a compact silicon integrated circuit structure optimized for robust performance in demanding environments.

Replacement Considerations

Direct substitutes are not explicitly confirmed in the provided documentation. Verify pin compatibility and electrical characteristics against alternative comparators if cross-referencing is necessary.