TLV3011BQDCKRQ1

Comparators Overview

The TLV3011BQDCKRQ1 is an automotive-grade, low-power analog comparator with open-drain output. It features a 1.242V integrated voltage reference with 1.5% initial accuracy and 100ppm/°C drift. The device operates on a single supply from 1.65V to 5.5V with a maximum quiescent current of 3.1µA. It includes built-in hysteresis (typical 6mV), fail-safe inputs, and power-on-reset functionality. Input common-mode range extends 200mV beyond the rails.

Comparators Feature Summary

• Fail-safe inputs maintain high impedance regardless of supply state
• Integrated 1.242V voltage reference available on separate pin
• Power-on-reset circuit ensures known start-up conditions
• Open-drain output supports logic OR functions

Comparators Applications

• Lane departure warning systems
• Instrument cluster monitoring
• Toll tag circuits
• Asset tracking devices
• Battery management systems

Comparators Procurement Notes

Verify the Q1 suffix confirms AEC-Q100 qualification for automotive use. Confirm the B variant designation indicates the inclusion of fail-safe inputs and power-on-reset features compared to standard versions. Ensure the DCKR package matches SC-70-6 surface mount requirements.

Comparators Selection Notes

Select this component when system design requires rail-to-rail input capability extending beyond supply rails. The integrated reference eliminates external resistor dividers. Verify that the open-drain output configuration aligns with downstream logic pull-up requirements.

Comparators Part Context

This part belongs to the TLV301x-Q1 family of micro-power comparators. The 'B' version specifically enhances the baseline model by adding lower minimum supply voltage support and internal protection features like fail-safe inputs and power-on-reset.

Comparators Replacement Considerations

TLV3011BIDCKRQ1

Comparators FAQ

How does the fail-safe input feature function?

Inputs maintain high impedance even if V+ is unpowered or ramping, allowing input voltages between 0V and 5.5V without clamping issues.

What is the purpose of the Power-On-Reset (POR)?

The POR circuit activates during power ramp-up or down to ensure the output remains in a known state for up to 1.9ms after crossing the minimum threshold.