Texas Instruments TLV3401CDBVR

Overview

TLV3401CDBVR from Texas Instruments is a single-channel nanopower open-drain comparator with 470 nA supply current, –0.1 V to VCC + 5 V input common-mode range, and 2.5 V to 16 V supply voltage. It operates across –40°C to +125°C and is used in battery-powered threshold detection circuits such as low-power medical sensors and wireless security triggers.

For engineers reviewing the TLV3401CDBVR datasheet, TLV3401CDBVR pinout, TLV3401CDBVR application, or TLV3401CDBVR equivalent, key selection criteria include ultra-low quiescent current, rail-exceeding input range, open-drain output compatibility with external pull-up networks, and SOT-23-5 packaging for space-constrained portable designs.

Technical Context

The TLV3401CDBVR implements a precision comparator core with input stage biasing enabling operation down to 2.5 V while maintaining 250 µV typical input offset voltage and 55–88 dB CMRR across supply voltages. Its open-drain CMOS output requires an external pull-up resistor and supports level-shifting between different voltage domains.

Designed for nanopower systems, it features reverse-battery protection up to 18 V and survives input overvoltage to VCC + 5 V without damage. Propagation delay ranges from 30 µs (50 mV overdrive) to 300 µs (2 mV overdrive), with 5 µs fall time at 5 V supply and 10 pF load.

Key Specifications

Pinout & Package

TLV3401CDBVR is housed in a 5-pin SOT-23 package (2.90 mm × 1.60 mm body size) with exposed pad not electrically connected. The package supports reflow soldering and is optimized for high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3401CDBVR, TLV3401IDBVR offers identical performance with guaranteed operation at higher temperatures, while TLV7011DBVR trades input flexibility and ruggedness for lower current and lower-voltage compatibility - making each suitable for distinct power and environmental constraints.

Availability

TLV3401CDBVR is available at Aetrix Electronics and suitable for portable medical equipment, wireless security systems, and remote control systems requiring stable component supply with consistent parametric performance across production lots.

Supply support for TLV3401CDBVR 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 conditioning and precision analog ICs.

The TLV340x product line was designed specifically for ultra-low-power threshold detection in battery-critical applications - emphasizing nanopower consumption, input ruggedness, and open-drain interoperability across mixed-voltage systems.

FAQ

What is the maximum supply voltage rating for TLV3401CDBVR?

The absolute maximum supply voltage for TLV3401CDBVR is 17 V, though recommended operating conditions specify 2.5 V to 16 V. Exceeding 17 V risks permanent damage per TI's Absolute Maximum Ratings table. Operation at 16 V is fully characterized across temperature and load conditions, supporting industrial 12 V rail monitoring with margin.

Does TLV3401CDBVR support rail-to-rail input operation?

TLV3401CDBVR does not support true rail-to-rail input - its input common-mode range extends from –0.1 V to VCC + 5 V, meaning it accepts signals 5 V above VCC but not below GND by more than 0.1 V. This asymmetry enables high-side sensing but requires GND-referenced signals to stay ≥ –0.1 V. The device is not specified for negative input voltages beyond that limit.

What pull-up resistor value is recommended for TLV3401CDBVR's open-drain output?

Texas Instruments specifies TLV3401CDBVR performance with a 1 MΩ pull-up resistor to VCC. This value balances low static power (4.7 nW at 5 V) and acceptable rise time for low-frequency applications. For faster response, values as low as 10 kΩ may be used - but increase supply current and reduce noise immunity. Always verify VOL remains ≤200 mV at required sink current.

Can TLV3401CDBVR be used with a 1.8 V supply?

No - TLV3401CDBVR has a minimum recommended supply voltage of 2.5 V. At 1.8 V, the device is not guaranteed to operate: internal biasing fails, propagation delay becomes erratic, and input offset voltage degrades significantly. For 1.8 V systems, consider TLV7011DBVR or TLV3601DBVR, which are characterized down to 1.4 V and 1.6 V respectively.

Is TLV3401CDBVR pin-compatible with other comparators in the TLV340x family?

TLV3401CDBVR (SOT-23-5) is not pin-compatible with TLV3402 or TLV3404, which use 8-pin and 14-pin packages. However, within the TLV3401 variant group, all SOT-23-5 versions (e.g., TLV3401CDBVR, TLV3401IDBVR) share identical pinout and footprint. No PCB redesign is needed when upgrading from C- to I-suffix for extended temperature operation.