TLV1812QDDFRQ1

Comparators Overview

The TLV1812QDDFRQ1 is an automotive-grade dual-channel analog comparator from Texas Instruments, designed for high-voltage applications. It features a wide supply voltage range of 2.4V to 40V and operates within an ambient temperature range of -40°C to +125°C. The device utilizes a push-pull output stage and offers rail-to-rail input capability. Key electrical specifications include a typical quiescent current of 5μA per channel, a maximum input offset voltage of 3mV, and a typical propagation delay of 420ns. It is housed in an SOT-23-THIN-8 package.

Comparators Feature Summary

• Features a push-pull output stage capable of sourcing and sinking milliamps of current for driving loads such as LEDs or MOSFET gates without external pull-up resistors.
• Includes an internal Power-On Reset (POR) circuit that ensures the output remains in a known state until the minimum supply voltage is reached, preventing false outputs during power transitions.
• Supports rail-to-rail input operation with an input common-mode voltage range extending slightly beyond the supply rails.

Comparators Applications

• HEV/EV and power train systems
• Infotainment and cluster modules
• Body control modules

Comparators Procurement Notes

Verify the specific ordering suffix 'DDFRQ1' corresponds to the SOT-23-THIN-8 package and reel packaging configuration. Confirm AEC-Q100 qualification status and functional safety documentation availability if required for system design. Ensure the component matches the intended automotive grade requirements.

Comparators Selection Notes

Select this part when a dual-channel comparator with push-pull outputs is required for high-voltage automotive environments. It is suitable for designs needing low quiescent current and rail-to-rail inputs. Consider alternative packages like TSSOP or SOIC if the SOT-23-THIN-8 footprint is unsuitable for the PCB layout.

Comparators Part Context

This component belongs to the TLV181x-Q1 family of 40V automotive comparators. It shares core specifications with other members of the series but differs in channel count and package type. The 'Q1' suffix indicates automotive qualification, while 'DDFR' specifies the thin SOT-23 package with tape-and-reel delivery.

Comparators Replacement Considerations

TLV1812QPWRQ1 (TSSOP-8 package)

Comparators FAQ

How does the Power-On Reset feature function?

The internal POR circuit keeps the output in a defined state until the supply voltage reaches the minimum operating level, ensuring reliable startup behavior.

What is the input common-mode voltage range?

The inputs support a rail-to-rail range, extending from 0.2V below V- to 0.2V above V+.