Texas Instruments TLV3404IN

Overview

TLV3404IN from Texas Instruments is a quad nanopower open-drain comparator with 470 nA per channel supply current, rail-to-rail input range (–0.1 V to VCC + 5 V), and operation across 2.5 V to 16 V supply. It delivers ultra-low power sensing in battery-critical systems such as portable medical monitors and wireless security sensors.

For engineers reviewing the TLV3404IN datasheet, TLV3404IN pinout, TLV3404IN application, or TLV3404IN equivalent, key selection criteria include its 4-channel open-drain output architecture, –40°C to +125°C industrial temperature rating, and compatibility with high-impedance pull-up networks for flexible logic-level interfacing.

Technical Context

The TLV3404IN implements a CMOS input stage with differential pair topology enabling input common-mode voltage extension beyond VCC by up to 5 V and reverse-battery protection up to 18 V. Its open-drain output stage requires external pull-up resistors and supports wired-OR logic configurations.

Each of the four independent comparator channels operates with matched propagation delay characteristics (tPLH = 55 µs, tPHL = 30 µs at 50 mV overdrive) and maintains consistent offset voltage drift (3 µV/°C) across the full industrial temperature range.

Key Specifications

Pinout & Package

TLV3404IN is packaged in a 14-pin PDIP (Plastic Dual In-line Package) with 19.30 mm × 6.35 mm body size and 2.54 mm lead pitch. The package supports through-hole mounting and provides thermal dissipation capability suitable for ambient temperatures up to +125°C.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3404IN, TLV3404IDR offers superior thermal efficiency and board-space savings for volume production, while TLV3404IPW provides mechanical compactness and enhanced RF immunity - both retain identical nanopower operation and input/output behavior but differ in manufacturability and layout constraints.

Availability

TLV3404IN is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and ultra-low power systems requiring stable component supply with long-term lifecycle assurance.

Supply support for TLV3404IN 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 delivering analog and embedded processing solutions, with leadership in low-power signal chain components and industrial-grade reliability.

The TLV340x family was designed specifically for battery-constrained applications demanding nanoscale quiescent current without sacrificing input voltage range or temperature robustness - targeting portable instrumentation and energy-harvesting systems.

FAQ

What is the maximum supply voltage rating for TLV3404IN?

The absolute maximum supply voltage for TLV3404IN is 17 V, though recommended operating conditions specify 2.5 V to 16 V. Exceeding 16 V may degrade long-term reliability or trigger internal protection mechanisms. All electrical characteristics in the datasheet are validated within the 2.5–16 V range, and TLV3404IN maintains full functionality including input common-mode range extension up to VCC + 5 V across this span.

Does TLV3404IN support rail-to-rail input operation?

Yes, TLV3404IN supports rail-to-rail input operation with a common-mode range from –0.1 V to VCC + 5 V. This allows the device to accept input signals below ground (e.g., for differential sensing) and above the positive supply rail - a key enabler for high-side current sensing and reverse-battery tolerant designs. The specification is guaranteed across the full –40°C to +125°C temperature range.

What pull-up resistor value is recommended for TLV3404IN's open-drain outputs?

A 1-MΩ pull-up resistor is specified in the TLV3404IN datasheet for characterization and meets all published timing and output voltage specifications. Using 1 MΩ minimizes current draw during low-output states (I = VCC / 1 MΩ ≈ 5 µA at 5 V) while preserving propagation delay performance. Lower values increase power but improve rise time; higher values reduce power but risk slower edges and noise susceptibility - TLV3404IN is fully characterized with 1 MΩ.

Is TLV3404IN qualified for automotive applications?

TLV3404IN is not AEC-Q100 qualified, but its –40°C to +125°C operating temperature range and 17 V absolute maximum supply rating meet many under-hood and cabin environmental requirements. It is widely used in non-safety-critical automotive subsystems such as battery monitoring, HVAC sensor interfaces, and infotainment peripheral detection - however, functional safety applications require AEC-Q100-certified alternatives like TLV3404QDRQ1.

How does TLV3404IN achieve reverse battery protection?

TLV3404IN achieves reverse battery protection via internal input-stage design that blocks conduction when VCC is driven negative relative to GND, withstanding up to –18 V. This eliminates the need for external series diodes in battery-powered systems, preserving voltage headroom and reducing bill-of-materials cost. The protection is inherent to the CMOS input structure and requires no external components - TLV3404IN remains undamaged and fully functional after exposure.