Texas Instruments TLV3012BQDBVRQ1

Overview

TLV3012BQDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-grade push-pull output comparator with integrated 1.242 V voltage reference, 3.1 µA maximum quiescent current, 2 µs typical propagation delay, and operation from 1.65 V to 5.5 V supply. It delivers fail-safe inputs, power-on-reset, and 6 mV built-in hysteresis for reliable voltage monitoring in battery management and cluster systems.

For engineers reviewing the TLV3012BQDBVRQ1 datasheet, TLV3012BQDBVRQ1 pinout, TLV3012BQDBVRQ1 application, or TLV3012BQDBVRQ1 equivalent, key selection considerations include its push-pull output architecture, 1.65 V minimum supply, fail-safe input tolerance up to 5.5 V independent of V+, and guaranteed performance across –40°C to +125°C ambient.

Technical Context

The TLV3012BQDBVRQ1 integrates a rail-to-rail input comparator with push-pull output stage and a separate 1.242 V series reference output pin. Its internal power-on-reset circuit asserts low output for 1.9 ms during V+ ramp-up, ensuring deterministic startup behavior without external sequencing.

Fail-safe inputs maintain high impedance and defined logic states even when V+ is unpowered or ramping, supporting robust operation in automotive power domains where input signals may be present before supply stabilization. Input common-mode range extends 200 mV beyond rails, enabling direct sensing of battery or sensor voltages near ground or supply rails.

Key Specifications

Pinout & Package

TLV3012BQDBVRQ1 is packaged in DBV (SOT-23-6) with 2.9 mm × 2.8 mm footprint, optimized for high-density automotive PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3012BQDCKRQ1 and TLV3012AQDBVRQ1, TLV3012BQDBVRQ1 uniquely combines AEC-Q100 Grade 1 qualification, fail-safe inputs, POR, and SOT-23-6 manufacturability - making it the only option for production automotive systems requiring both functional safety and standard surface-mount assembly.

Availability

TLV3012BQDBVRQ1 is available at Aetrix Electronics and suitable for battery management systems, instrument clusters, and toll tag designs requiring stable component supply across extended temperature and automotive lifecycle requirements.

Supply support for TLV3012BQDBVRQ1 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 and embedded processing solutions for automotive, industrial, and personal electronics markets.

The TLV3012BQDBVRQ1 belongs to TI's automotive-qualified comparator family designed specifically for precision, low-power voltage monitoring in safety-critical vehicle subsystems - emphasizing fail-safe operation, wide temperature range, and integrated reference functionality.

FAQ

What is the minimum supply voltage for TLV3012BQDBVRQ1?

The TLV3012BQDBVRQ1 supports a minimum supply voltage of 1.65 V, verified across its full operating temperature range of –40°C to +125°C. This enables direct interface with single-cell LiFePO₄ batteries and low-voltage microcontrollers. The 1.65 V threshold is enforced by the internal power-on-reset circuit, which holds the output low until V+ exceeds this level - a capability not present in the non-B versions of the TLV3012-Q1 family.

Does TLV3012BQDBVRQ1 require an external pull-up resistor?

No, TLV3012BQDBVRQ1 does not require an external pull-up resistor because it features a push-pull output stage capable of actively driving both high and low logic states. This eliminates the quiescent current draw associated with pull-up resistors used in open-drain comparators like the TLV3011B-Q1, reducing total system power consumption and simplifying PCB layout in space-constrained automotive modules.

How does the fail-safe input feature work in TLV3012BQDBVRQ1?

The fail-safe inputs of TLV3012BQDBVRQ1 allow IN+ and IN– to accept voltages from 0 V to 5.5 V regardless of whether V+ is powered, ramping, or zero. This is achieved by removing ESD diode clamps to V+, enabling valid comparator decisions even during power sequencing transients. As long as one input remains within spec and V+ is valid, TLV3012BQDBVRQ1 maintains correct output polarity - a critical capability for automotive diagnostics and pre-ignition monitoring.

What is the accuracy and stability of the integrated reference in TLV3012BQDBVRQ1?

The integrated reference in TLV3012BQDBVRQ1 delivers 1.242 V with ±1.5% initial accuracy and maximum 100 ppm/°C temperature drift over –40°C to +125°C. It sources or sinks up to 0.5 mA and remains stable with capacitive loads ≤10 nF. This performance eliminates the need for external references in most automotive voltage-monitoring applications, including battery cell supervision and supply rail validation.

Can TLV3012BQDBVRQ1 be used in place of TLV3012QDBVRQ1?

TLV3012BQDBVRQ1 is not a drop-in replacement for TLV3012QDBVRQ1 due to key functional differences: TLV3012BQDBVRQ1 adds power-on-reset, fail-safe inputs, lower 1.65 V minimum supply, and tighter 3.1 µA quiescent current spec, while TLV3012QDBVRQ1 lacks these features and requires ≥1.8 V supply. Substitution requires verification of POR timing, input voltage sequencing, and quiescent current budget - especially in systems previously designed around the non-B version's higher IQ and simpler startup behavior.