Texas Instruments TLV9031DBVR

Overview

TLV9031DBVR from Texas Instruments is a single-channel, precision push-pull output comparator optimized for low-voltage, low-power applications. It delivers 300 µV input offset voltage, 100 ns propagation delay, and 16 µA quiescent current per channel across 1.65 V to 5.5 V supply range, operating reliably from –40°C to +125°C. It is used in motor drive overcurrent detection, factory automation voltage monitoring, and infotainment system power sequencing.

For engineers reviewing the TLV9031DBVR datasheet, TLV9031DBVR pinout, TLV9031DBVR application, or TLV9031DBVR equivalent, key selection criteria include its rail-to-rail fault-tolerant inputs (–0.2 V to V+ + 0.2 V), push-pull output capable of sourcing/sinking ≥4 mA, and guaranteed performance over industrial temperature range without external pull-up.

Technical Context

The TLV9031DBVR implements a high-gain, low-noise comparator core with ESD-protected, fault-tolerant inputs that withstand up to 6 V regardless of supply voltage-enabling direct interface with higher-voltage sensors or legacy logic. Its internal push-pull output stage eliminates external pull-up components and supports direct LED driving or MOSFET gate control.

Designed for precision voltage monitoring in electrically noisy environments, it features 75 dB PSRR (push-pull), 60 dB CMRR at 1.8 V, and ±0.5 µV/°C input offset drift-ensuring stable threshold detection across wide supply and temperature variations in motor drives and building automation systems.

Key Specifications

Pinout & Package

TLV9031DBVR is housed in a 5-pin SOT-23 (DBV) package measuring 1.60 mm × 2.90 mm, with standard North West pinout configuration optimized for PCB layout density and thermal performance (R_θJA = 223.7°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision comparator applications.

Compared with TLV9031DCKR and LMV331M5X, the TLV9031DBVR offers superior thermal performance in SOT-23, guaranteed push-pull drive, and full industrial temperature qualification-making it optimal for motor control and automated equipment where reliability and responsiveness are critical.

Availability

TLV9031DBVR is available at Aetrix Electronics and suitable for motor drives, factory automation systems, and infotainment power management requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for TLV9031DBVR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog, power management, and signal chain solutions.

The TLV903x family was designed specifically for ultra-low-power, high-accuracy voltage monitoring in harsh industrial and automotive environments-emphasizing fault tolerance, rail-to-rail operation, and robust thermal performance.

FAQ

What is the maximum input voltage the TLV9031DBVR can tolerate without damage?

The TLV9031DBVR features fault-tolerant inputs rated from –0.3 V to 6 V relative to V–, regardless of supply voltage. This allows direct interfacing with 5 V sensors or legacy logic even when operating from a 1.8 V rail-no external clamping diodes or series resistors are needed for protection.

Does the TLV9031DBVR require an external pull-up resistor on its output?

No. The TLV9031DBVR has a push-pull output stage capable of both sourcing and sinking current (≥4 mA). Unlike open-drain comparators, it does not require an external pull-up resistor-reducing component count, PCB area, and potential noise coupling in high-density layouts.

Can the TLV9031DBVR operate from a 1.8 V supply while maintaining full specifications?

Yes. The TLV9031DBVR is fully specified from 1.65 V to 5.5 V, including input offset voltage (±0.3 mV typ), propagation delay (100 ns), and quiescent current (16 µA) at 1.8 V. All parameters-including PSRR and CMRR-are guaranteed across this full supply range and the full –40°C to +125°C temperature span.

What is the common-mode input voltage range of the TLV9031DBVR?

The TLV9031DBVR supports a rail-to-rail common-mode input range from (V–) – 0.2 V to (V+) + 0.2 V. At 1.8 V supply, this spans –0.2 V to 2.0 V; at 5 V supply, it covers –0.2 V to 5.2 V-enabling direct sensing of supply rails, battery voltages, or sensor outputs without level-shifting circuitry.

How does the TLV9031DBVR differ from the TLV9021DBVR?

The TLV9031DBVR uses a push-pull output, while the TLV9021DBVR has an open-drain output. This means TLV9031DBVR actively drives both logic high and low states, eliminating external pull-up needs, whereas TLV9021DBVR requires a pull-up for high-level assertion and supports wired-OR configurations. Both share identical input specs, supply range, and temperature rating.