Texas Instruments TLV3011BQDBVRQ1

Overview

TLV3011BQDBVRQ1 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, 1.65V to 5.5V supply range, and built-in 6mV hysteresis-used for precision battery voltage monitoring and fault detection in vehicle cluster and toll tag systems.

For engineers reviewing the TLV3011BQDBVRQ1 datasheet, TLV3011BQDBVRQ1 pinout, TLV3011BQDBVRQ1 application, or TLV3011BQDBVRQ1 equivalent, key selection criteria include fail-safe input operation up to 5.5V independent of V+, power-on-reset timing (1.9ms), rail-to-rail input common-mode range (–0.2V to V+ + 0.2V), and SOT-23-6 package compatibility with space-constrained automotive PCB layouts.

Technical Context

The TLV3011BQDBVRQ1 implements a rail-to-rail input comparator core with open-drain output and a dedicated 1.242V series voltage reference output pin. Its fail-safe input architecture maintains high impedance when V+ is unpowered or ramping, enabling robust operation during power sequencing events.

Power-on-reset (POR) asserts a known output state for 1.9ms after V+ crosses the 1.65V threshold, ensuring stable reference startup before comparator decision-making. The internal hysteresis (6mV typical) suppresses noise-induced oscillation without requiring external feedback components.

Key Specifications

Pinout & Package

TLV3011BQDBVRQ1 is packaged in a 6-pin SOT-23 (DBV) footprint measuring 2.9mm × 2.8mm, optimized for automated placement and thermal performance in high-density automotive PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3011BQDCKRQ1 and TLV3012BQDBVRQ1, TLV3011BQDBVRQ1 offers optimal balance of layout flexibility (SOT-23 pick-and-place compatibility), noise immunity (open-drain isolation), and thermal margin (higher θJA than SC-70) for mid-volume automotive modules.

Availability

TLV3011BQDBVRQ1 is available at Aetrix Electronics and suitable for lane departure warning, cluster display monitoring, and toll tag battery management requiring stable component supply across automotive production lifecycles.

Supply support for TLV3011BQDBVRQ1 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 TLV301x-Q1 product line targets AEC-Q100-compliant voltage monitoring in safety-critical automotive subsystems, emphasizing ultra-low power, fail-safe operation, and integrated reference accuracy for battery and sensor interface applications.

FAQ

What is the minimum supply voltage for TLV3011BQDBVRQ1 to guarantee proper operation?

The TLV3011BQDBVRQ1 requires a minimum supply voltage of 1.65V to ensure full functionality-including reference stabilization, comparator decision-making, and power-on-reset assertion. Below this threshold, the device enters undefined behavior; the POR circuit holds the open-drain output in high-impedance state until V+ rises above 1.65V and remains active for 1.9ms thereafter. This specification is validated across –40°C to +125°C ambient temperature per AEC-Q100 Grade 1 requirements.

Does TLV3011BQDBVRQ1 support input voltages exceeding the V+ supply rail?

Yes, TLV3011BQDBVRQ1 supports input voltages from –0.2V to 5.5V on both IN+ and IN– pins, independent of the V+ supply voltage-a feature called fail-safe inputs. This allows direct connection to sensors or signals operating at higher potentials (e.g., 5V CAN transceivers or battery packs) without external level shifters or clamping diodes, provided input current is limited to prevent damage. The input structure lacks ESD diodes to V+, so external clamping is required if source can exceed 5.5V.

How does the integrated 1.242V reference in TLV3011BQDBVRQ1 improve system design?

The integrated 1.242V reference in TLV3011BQDBVRQ1 eliminates the need for an external precision voltage reference IC, reducing BOM count, PCB area, and cost. It delivers ±1.5% initial accuracy and 100ppm/°C max drift over –40°C to +125°C, enabling accurate undervoltage detection (e.g., 4.2V Li-ion cutoff via 3.4× resistor divider) without calibration. The REF pin can source/sink up to 0.5mA, supporting direct driving of ADC references or external comparators in multi-rail systems.

What is the purpose of the built-in 6mV hysteresis in TLV3011BQDBVRQ1?

The built-in 6mV hysteresis in TLV3011BQDBVRQ1 prevents output oscillation when input signals hover near the switching threshold due to noise or slow edges. It creates distinct upper and lower trip points (±3mV around nominal threshold), ensuring clean, chatter-free digital transitions. This internal hysteresis is fixed and does not require external resistors-simplifying design for battery voltage monitoring and fault flag generation where signal integrity is compromised by EMI or long traces.

Can TLV3011BQDBVRQ1 be used in systems requiring AEC-Q100 compliance?

Yes, TLV3011BQDBVRQ1 is fully AEC-Q100 qualified for Grade 1 (–40°C to +125°C ambient), with documented HBM ±2kV and CDM ±1kV ESD ratings. It undergoes rigorous automotive-specific stress testing including temperature cycling, humidity bias, and package reliability validation. The device is manufactured in TI's IATF 16949-certified facilities, and its qualification data is publicly available in the SBOS551D datasheet-making it suitable for engine control units, ADAS sensors, and body electronics where functional safety and long-term reliability are mandatory.