TLV4082QDBVRQ1

Comparators Overview

The TLV4082QDBVRQ1 is a dual-channel, low-power voltage comparator qualified for automotive applications under AEC-Q100 standards. It operates within a supply voltage range of 1.5 V to 5.5 V and supports an ambient temperature range from -40°C to +125°C. The device features high threshold accuracy with a typical quiescent current of 2 µA. It utilizes an open-drain output topology requiring external pull-up resistors, allowing the output logic level to be pulled up to 5.5 V independent of the supply voltage.

Comparators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 specifications
• Open-drain output configuration enabling flexible voltage level interfacing
• Integrated precision hysteresis to prevent false triggering from noise

Comparators Applications

• Emergency call (eCall) systems
• Automotive head unit monitoring
• Instrument cluster voltage supervision
• On-board charger and wireless charger protection

Comparators Procurement Notes

Verify that the specific ordering suffix matches the required package type and tape-and-reel quantity. Confirm the component meets the intended automotive reliability standards by checking the official datasheet revision history. Ensure the design accounts for the open-drain requirement by including appropriate external pull-up resistors in the schematic.

Comparators Selection Notes

Select this component when an open-drain interface is necessary to interface with different voltage domains or to implement wired-OR logic configurations. It is suitable for designs prioritizing minimal board space and ultra-low power consumption during standby modes. Consider the internal reference thresholds if external resistor dividers are not desired for setting trip points.

Comparators Part Context

This part belongs to the TLV40x2-Q1 family of micro-power comparators manufactured by Texas Instruments. It shares functional similarities with the push-pull TLV4062-Q1 variant but differs in its output stage architecture. The family is designed specifically for compact, battery-powered automotive electronics requiring reliable voltage monitoring.

Comparators Replacement Considerations

TLV4062QDBVRQ1

Comparators FAQ

How does the TLV4082QDBVRQ1 handle input signals when unpowered?

The device is fault tolerant; inputs can swing from ground to 5.5 V even when no supply voltage is applied, maintaining high input impedance.

What is the purpose of the integrated hysteresis in this comparator?

The built-in hysteresis rejects brief glitches and provides stable operation in noisy environments without requiring external positive feedback components.