TLV1821DBVR

Comparators Overview

The TLV1821DBVR is a single-channel, micro-power comparator from the Texas Instruments TLV182x family. It features an open-drain output stage capable of being pulled up to 40V independent of the supply voltage. The device operates on a wide supply range of 2.4V to 40V with a typical quiescent current of 5µA per channel and a propagation delay of 420ns. It includes rail-to-rail inputs, a Power-On Reset (POR) feature for known start-up states, and 2kV ESD protection.

Comparators Feature Summary

• Open-drain output stage allows logic level translation and pulling up to 40V independent of supply voltage
• Rail-to-rail input capability extends from 200mV below V- to 200mV above V+
• Integrated Power-On Reset (POR) ensures outputs remain in a known state during power transitions
• Micro-power operation with 5µA quiescent current per channel across the full supply range

Comparators Applications

• Appliances
• Factory automation and control
• Motor drives
• Infotainment and cluster systems

Comparators Procurement Notes

Verify that the DBVR suffix corresponds to the SOT-23-5 package configuration. Confirm the open-drain output requirement matches the TLV182x series specifications rather than the push-pull TLV181x series. Ensure system design accounts for the external pull-up resistor requirements inherent to the open-drain topology.

Comparators Selection Notes

Select this component when an open-drain output is required for logic interfacing or voltage translation. The wide 40V rating supports high-voltage sensing applications. Consider the 5µA quiescent current for battery-operated designs. Verify that the 420ns propagation delay meets the timing constraints of the specific application circuit.

Comparators Part Context

This part belongs to the TLV181x/TLV182x family of 40V rail-to-rail input comparators. The TLV182x sub-series specifically provides open-drain outputs, distinguishing it from the TLV181x push-pull variants. The family shares common electrical characteristics including low offset voltage and high ESD protection ratings.

Comparators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.