Texas Instruments TLV7041DBVR

Overview

TLV7041DBVR from Texas Instruments is a single-channel, nanopower, open-drain comparator optimized for ultra-low-power sensing and voltage monitoring in battery-powered systems. It operates from 1.6V to 6.5V supply, draws only 315nA quiescent current, delivers 3µs propagation delay, features rail-to-rail input common-mode range (VEE to VCC + 0.1V), and includes internal hysteresis - enabling reliable threshold detection in smoke detectors and portable gas meters.

For engineers reviewing the TLV7041DBVR datasheet, TLV7041DBVR pinout, TLV7041DBVR application, or TLV7041DBVR equivalent, key selection considerations include its open-drain output architecture (requiring external pull-up), 315nA supply current at 1.8V, –40°C to 125°C operating range, 2mV typical hysteresis, and compatibility with 1.6V–6.5V single-supply systems.

Technical Context

The TLV7041DBVR implements a rail-to-rail input stage capable of accepting signals up to 100mV beyond VCC, paired with an open-drain output that supports level translation and wired-OR logic. Its internal hysteresis (2–17mV) suppresses noise-induced output oscillation during slow-moving input transitions.

It integrates a power-on-reset (POR) circuit that places the output in high-impedance state until VCC ≥ 1.6V is established, ensuring glitch-free startup. The device is specified across –40°C to 125°C and maintains <±8mV input offset voltage over temperature and supply voltage variations.

Key Specifications

Pinout & Package

TLV7041DBVR is packaged in a 5-pin SOT-23 (DBV) package measuring 2.90mm × 1.60mm, with standard "North West" pinout configuration.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar nanopower open-drain comparator applications.

Compared with TLV7041DCKR, TLV7041DBVR offers larger pad geometry for improved manufacturability and thermal dissipation; compared with MAX9021AUT+T, it delivers 3.5× lower supply current, 4× faster response, and eliminates external hysteresis components - reducing total solution size and validation effort.

Availability

TLV7041DBVR is available at Aetrix Electronics and suitable for smoke detectors, gas meters, motion sensors, and servo position feedback systems requiring stable component supply, long-lifecycle support, and guaranteed traceability.

Supply support for TLV7041DBVR 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 with emphasis on reliability, energy efficiency, and industrial-grade qualification.

The TLV704x family is part of TI's nanopower analog portfolio, designed specifically for always-on sensing, battery-operated IoT endpoints, and safety-critical monitoring systems where µA-level current and robust noise immunity are mandatory.

FAQ

What is the minimum supply voltage required for reliable operation of the TLV7041DBVR?

The TLV7041DBVR requires a minimum supply voltage of 1.6V for functional operation across its full temperature range (–40°C to 125°C). Below this threshold, the internal power-on-reset circuit holds the output in high-impedance state. For designs using the "S" or "L" variants, the minimum supply extends to 1.2V - but TLV7041DBVR itself is rated strictly for 1.6V minimum per its DBV package specification and datasheet Section 5.3.

Does the TLV7041DBVR require external hysteresis resistors?

No, the TLV7041DBVR includes internal hysteresis (2–17mV) as a fixed feature - eliminating the need for external feedback resistors. This hysteresis is inherent to the comparator core and active across all operating conditions. External hysteresis is neither required nor recommended unless a specific, non-standard hysteresis magnitude is needed, which would necessitate redesigning the feedback network and invalidating the guaranteed performance of TLV7041DBVR.

Can the TLV7041DBVR interface directly with a 3.3V microcontroller GPIO pin?

Yes, the TLV7041DBVR's open-drain output is fully compatible with 3.3V GPIO inputs when pulled up to 3.3V. Its output leakage current is ≤100pA at 5V supply, ensuring negligible voltage drop across typical 10kΩ pull-up resistors. The device's 3µs propagation delay and rail-to-rail input range further enable direct connection to MCU ADC reference or sensor outputs without level-shifting circuitry.

What is the maximum input voltage the TLV7041DBVR can tolerate on its IN+ and IN− pins?

The TLV7041DBVR supports a common-mode input voltage range from VEE to VCC + 0.1V. With VEE = 0V and VCC = 5V, inputs may safely reach up to +5.1V. Absolute maximum rating is VEE – 0.3V to 7V per pin (Section 5.1), but sustained operation above VCC + 0.1V risks increased input bias current and potential long-term reliability impact - so VCC + 0.1V remains the recommended functional limit for TLV7041DBVR.

How does the power-on-reset (POR) behavior of the TLV7041DBVR affect system startup?

During power-up, the TLV7041DBVR's POR circuit keeps the open-drain output in high-impedance state until VCC reaches and stabilizes at ≥1.6V. This prevents spurious output transitions that could falsely trigger downstream logic or latches. Once VCC exceeds 1.6V, the output becomes active within 200µs (tON, Section 5.8), ensuring deterministic startup timing - critical in safety-monitoring applications like smoke detectors where false alarms must be avoided.