Texas Instruments TLV3401IDBVRG4

Overview

TLV3401IDBVRG4 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-critical systems. It draws only 470 nA supply current per channel, operates from 2.5 V to 16 V, and supports input common-mode voltage from –0.1 V to V_CC + 5 V - enabling high-side voltage monitoring in portable medical devices and wireless security sensors.

For engineers reviewing the TLV3401IDBVRG4 datasheet, TLV3401IDBVRG4 pinout, TLV3401IDBVRG4 application, or TLV3401IDBVRG4 equivalent, key selection criteria include nanoscale quiescent current, rail-exceeding input range, open-drain output compatibility with mixed-voltage logic, reverse-battery protection up to 18 V, and industrial-grade temperature operation (–40°C to +125°C).

Technical Context

The TLV3401IDBVRG4 implements a precision comparator core with input offset voltage of 250 µV (typ), 72 dB CMRR at 5 V, and 1000 V/mV large-signal gain. Its input stage uses P-channel MOSFETs to achieve rail-to-rail input capability beyond V_CC, while the open-drain output allows flexible pull-up configuration and wired-OR logic interfacing.

Propagation delay is overdrive-dependent: 55 µs (low-to-high) and 30 µs (high-to-low) at 50 mV overdrive with 1 MΩ pull-up and 10 pF load. Input bias current remains below 250 pA (max) across temperature, ensuring minimal loading on high-impedance sensor nodes like thermistors or photodiodes.

Key Specifications

Pinout & Package

TLV3401IDBVRG4 is housed in a 5-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for space-constrained PCB layouts in handheld instruments and wearable sensors.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3401IDBVR and TLV7011DBVR, TLV3401IDBVRG4 uniquely combines sub-500-nA operation, V_CC+5 V input tolerance, and reverse-battery ruggedness - making it the only choice for high-side battery monitoring in harsh, unregulated environments.

Availability

TLV3401IDBVRG4 is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, handheld instruments, and ultra-low power industrial nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLV3401IDBVRG4 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 low-power signal conditioning and precision analog ICs.

The TLV340x family was engineered specifically for battery-constrained applications demanding nanoscale quiescent current, wide input voltage tolerance, and industrial reliability - targeting portable healthcare, security, and instrumentation markets.

FAQ

What is the maximum input voltage allowed on the IN+ or IN− pins of TLV3401IDBVRG4?

The absolute maximum input voltage on either IN+ or IN− is the smaller of 20 V or V_CC + 5 V, as specified in the Absolute Maximum Ratings table. For example, with V_CC = 5 V, inputs may safely reach up to 10 V. This feature enables direct high-side sensing without external attenuation, and TLV3401IDBVRG4 maintains integrity even when inputs exceed the positive supply rail by up to 5 V.

Does TLV3401IDBVRG4 require an external pull-up resistor on its output?

Yes, TLV3401IDBVRG4 has an open-drain output and requires an external pull-up resistor to establish a defined high state. The datasheet specifies performance with a 1-MΩ pull-up to V_CC; values between 10 kΩ and 10 MΩ are usable depending on speed vs. power trade-offs. Without this resistor, the output remains floating and cannot drive logic-high signals - a critical design requirement for all TLV3401IDBVRG4 implementations.

Is TLV3401IDBVRG4 suitable for use in automotive cabin applications?

Yes, TLV3401IDBVRG4 is qualified for industrial temperature operation (–40°C to +125°C), matching typical automotive cabin ambient requirements. Its reverse-battery protection (up to –18 V), 16-V supply tolerance, and 2.5-V minimum operating voltage make it appropriate for non-safety-critical cabin modules such as seat occupancy detection or HVAC sensor interfaces - though not for ASIL-B/C safety domains without additional system-level validation. TLV3401IDBVRG4 meets these environmental demands without derating.

How does the supply current of TLV3401IDBVRG4 vary with temperature?

TLV3401IDBVRG4 supply current increases with temperature: typical ICC is 470 nA at 25°C, rising to 750 nA (max) across the full –40°C to +125°C range. This variation is monotonic and well-characterized in Figure 7 of the datasheet. For battery-life calculations in wide-temperature deployments, designers should use the 750-nA worst-case value - confirming that TLV3401IDBVRG4 still delivers multi-year operation even under thermal stress.

Can TLV3401IDBVRG4 be used with a dual-supply configuration?

Yes, TLV3401IDBVRG4 supports dual-supply operation from ±1.25 V to ±8 V, as stated in the Recommended Operating Conditions. In dual-supply mode, GND becomes the reference midpoint, and inputs can swing from –0.1 V to V_CC + 5 V relative to GND - meaning the negative rail may be –5 V while the positive rail is +5 V, yielding a 10-V total span. This flexibility allows TLV3401IDBVRG4 to interface with legacy op-amp signal chains without level-shifting circuitry.