Texas Instruments TLV3401CDBVT

Overview

TLV3401CDBVT from Texas Instruments is a single-channel nanopower comparator with open-drain CMOS output, designed for ultra-low-power sensing and threshold detection in battery-operated systems. It draws only 470 nA supply current per channel, supports 2.5 V to 16 V supply range, features rail-to-rail input common-mode range (–0.1 V to VCC + 5 V), and operates across –40°C to +125°C industrial temperature range - enabling use in portable medical devices and wireless security sensors.

For engineers reviewing the TLV3401CDBVT datasheet, TLV3401CDBVT pinout, TLV3401CDBVT application, or TLV3401CDBVT equivalent, key selection criteria include its nanoscale quiescent current, reverse-battery protection up to 18 V, open-drain output compatibility with mixed-voltage logic, and SOT-23-5 packaging for space-constrained PCB layouts.

Technical Context

The TLV3401CDBVT implements a precision comparator core with input offset voltage of 250 µV (typ), 3 µV/°C drift, and 55–88 dB common-mode rejection across supply voltages. Its open-drain output requires external pull-up but enables wired-OR logic and level translation - critical for interfacing with microcontrollers operating at lower I/O voltages than the comparator's supply.

Input bias current remains below 250 pA (max) over temperature, supporting high-impedance sensor interfaces like thermistors or photodiodes without loading error. Propagation delay ranges from 30 µs (50 mV overdrive) to 300 µs (2 mV overdrive), making it suitable for slow-moving signals where power efficiency outweighs speed requirements.

Key Specifications

Pinout & Package

TLV3401CDBVT is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for high-density PCB layouts and automated surface-mount assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3401IDBVT, TLV3401CDBVT trades extended temperature range for cost advantage in commercial environments; compared with TLV7011DBVR, it sacrifices some quiescent current reduction to gain wider supply flexibility and built-in reverse-polarity resilience - critical for field-deployed equipment.

Availability

TLV3401CDBVT is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and handheld instruments requiring stable component supply with guaranteed long-term availability.

Supply support for TLV3401CDBVT 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 specializing in analog and embedded processing technologies, with decades of expertise in precision signal chain and low-power design.

The TLV340x family was engineered specifically for ultra-low-power threshold detection in battery-constrained applications - emphasizing nanopower consumption, rail-to-rail input capability, and robustness in real-world deployment conditions.

FAQ

What is the maximum supply voltage for TLV3401CDBVT?

The absolute maximum supply voltage for TLV3401CDBVT is 17 V, but the recommended operating range is 2.5 V to 16 V. Exceeding 16 V risks violating safe operating area limits and may reduce long-term reliability, even if within absolute max ratings. Always observe derating guidelines for high-temperature operation.

Does TLV3401CDBVT support rail-to-rail input operation?

Yes, TLV3401CDBVT supports an input common-mode voltage range from –0.1 V to VCC + 5 V, which exceeds both supply rails. This enables direct high-side sensing (e.g., monitoring 12 V bus with 5 V supply) and eliminates need for external level-shifting circuitry in many applications.

What pull-up resistor value is recommended for TLV3401CDBVT's open-drain output?

A 1 MΩ pull-up resistor is specified in the TLV3401CDBVT datasheet for full performance compliance, including propagation delay and VOL specifications. Lower values improve speed but increase static power; higher values reduce current but risk slower rise times and noise susceptibility - especially with long traces or capacitive loads.

Is TLV3401CDBVT compatible with reverse battery connection?

Yes, TLV3401CDBVT includes reverse-battery protection up to –18 V on the VCC pin relative to GND. This feature prevents destructive current flow during incorrect battery installation, eliminating the need for external series diodes or protection FETs in portable equipment designs.

What is the input offset voltage specification for TLV3401CDBVT?

The input offset voltage for TLV3401CDBVT is 250 µV typical and 3600 µV maximum at 25°C, with a drift of 3 µV/°C. This enables precise threshold detection in applications such as battery voltage monitoring or sensor zero-crossing detection where sub-millivolt accuracy is required.