Texas Instruments TLV3011AQDBVRQ1

Overview

TLV3011AQDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified automotive open-drain comparator with integrated 1.242V voltage reference, 3.1μA maximum quiescent current (B-version), 6mV typical built-in hysteresis, and rail-to-rail input common-mode range extending 200mV beyond supply rails. It operates from 1.65V to 5.5V and is used in battery management systems for precise low-power voltage threshold detection.

For engineers reviewing the TLV3011AQDBVRQ1 datasheet, TLV3011AQDBVRQ1 pinout, TLV3011AQDBVRQ1 application, or TLV3011AQDBVRQ1 equivalent, key selection criteria include its fail-safe inputs, power-on-reset functionality, open-drain output compatibility with wired-OR logic, and guaranteed operation across –40°C to +125°C ambient temperature.

Technical Context

The TLV3011AQDBVRQ1 implements a rail-to-rail input comparator core with dedicated REF output pin delivering a stable 1.242V series reference (±1.5% initial accuracy, 100ppm/°C max drift). Its open-drain output supports pull-up voltages up to 5.5V independent of V+, enabling flexible interface with higher-voltage logic domains.

It integrates power-on-reset (1.9ms delay) and fail-safe inputs that remain high-impedance up to 5.5V even when V+ is unpowered or ramping - eliminating external sequencing constraints. Input offset voltage is ±0.3mV (typ), with ±9mV max over temperature and ±12µV/°C drift.

Key Specifications

Pinout & Package

TLV3011AQDBVRQ1 is housed in a 6-pin SOT-23 (DBV) package measuring 2.9mm × 2.8mm, optimized for space-constrained automotive PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar comparator-with-reference applications.

Compared with TLV3011BQDBVRQ1, TLV3011AQDBVRQ1 offers identical automotive-grade performance and pin compatibility, while TLV3012AQDBVRQ1 trades open-drain flexibility for lower component count in isolated comparator nodes - making TLV3011AQDBVRQ1 optimal for multi-sensor fault-bus architectures.

Availability

TLV3011AQDBVRQ1 is available at Aetrix Electronics and suitable for battery management systems, automotive instrument clusters, and electronic toll collection devices requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV3011AQDBVRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog, embedded processing, and connectivity solutions for automotive, industrial, and personal electronics markets.

The TLV3011AQDBVRQ1 belongs to TI's automotive-qualified MicroPower comparator family, designed specifically for low-current, precision voltage detection in safety-critical vehicle subsystems where reliability and thermal robustness are mandatory.

FAQ

What is the guaranteed operating temperature range for TLV3011AQDBVRQ1?

The TLV3011AQDBVRQ1 is qualified per AEC-Q100 Grade 1 with guaranteed operation from –40°C to +125°C ambient temperature. All electrical specifications - including quiescent current (3.1μA max), reference accuracy (±1.5%), and propagation delay (2–4µs) - are validated across this full range, making it suitable for under-hood and cabin-mounted automotive applications.

Does TLV3011AQDBVRQ1 require an external pull-up resistor on the OUT pin?

Yes, TLV3011AQDBVRQ1 features an open-drain output and requires an external pull-up resistor to establish a valid high logic level. The pull-up voltage may be up to 5.5V regardless of the V+ supply voltage - a key advantage for interfacing with higher-voltage microcontrollers. TLV3011AQDBVRQ1 itself does not source current on OUT; current flows only when the output is actively sinking.

How does the power-on-reset (POR) function in TLV3011AQDBVRQ1 affect system startup?

The TLV3011AQDBVRQ1 incorporates a 1.9ms POR circuit that holds the open-drain output in high-impedance (Hi-Z) state during V+ ramp-up or ramp-down. This prevents false triggering before the internal 1.242V reference stabilizes, especially critical when driving microcontroller interrupt lines. During POR, the output floats - so the external pull-up defines the logic state, ensuring deterministic behavior at power-on.

Can TLV3011AQDBVRQ1 inputs be driven above the V+ supply voltage?

Yes - TLV3011AQDBVRQ1 features fail-safe inputs rated for 0V to 5.5V independent of V+. This means IN+ and IN– can safely accept signals up to 5.5V even when V+ is 0V, ramping, or at 1.65V. However, input voltages exceeding 5.5V must be externally clamped, and current-limiting resistors are recommended for transient protection, as no internal ESD diodes connect inputs to V+.

What is the maximum capacitive load the REF pin of TLV3011AQDBVRQ1 can drive?

The REF pin of TLV3011AQDBVRQ1 is specified to remain stable with up to 10nF of capacitive load, enabling direct connection to sampling capacitors in SAR ADCs or local bypassing for noise-sensitive analog sections. It can source or sink up to 0.5mA (typical), supporting resistor-divider networks for generating sub-1.242V thresholds - all while maintaining ±1.5% initial accuracy and 100ppm/°C max drift across temperature.