Texas Instruments TLV3402IDG4

Overview

TLV3402IDG4 from Texas Instruments is a dual-channel 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 features reverse battery protection up to 18 V and is rated for industrial temperature range (–40°C to +125°C). It serves as a low-power threshold detector in battery-critical sensor monitoring circuits.

For engineers reviewing the TLV3402IDG4 datasheet, TLV3402IDG4 pinout, TLV3402IDG4 application, or TLV3402IDG4 equivalent, key selection criteria include ultra-low quiescent current, input overvoltage tolerance beyond VCC, open-drain output compatibility with mixed-voltage logic, and VSSOP-8 packaging for space-constrained portable designs.

Technical Context

The TLV3402IDG4 implements a CMOS-input, open-drain output architecture optimized for nanopower operation without sacrificing input voltage range. Its input stage supports common-mode voltages up to VCC + 5 V and down to –0.1 V, enabling high-side sensing and reverse-battery robustness. The device operates fully functional at 2.7 V minimum supply over –40°C to +125°C.

Each channel delivers 470 nA typical supply current at 25°C and maintains <750 nA across full temperature range. Propagation delay is 55 µs (low-to-high) and 30 µs (high-to-low) under 50 mV overdrive with 1 MΩ pull-up and 10 pF load - confirming suitability for slow-to-moderate speed threshold detection where power dominates timing.

Key Specifications

Pinout & Package

TLV3402IDG4 is housed in an 8-pin VSSOP (DGK) package measuring 3.00 mm × 3.00 mm, optimized for high-density PCB layouts in portable equipment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV3402IDR, TLV3402IDG4 offers identical electrical behavior but enables manual handling and small-batch evaluation; versus TLV3402CDR, it guarantees stable operation across harsh thermal environments - critical for field-deployed instrumentation and safety-monitored systems.

Availability

TLV3402IDG4 is available at Aetrix Electronics and suitable for portable medical sensors, wireless security peripherals, and ultra-low power environmental loggers requiring stable component supply with guaranteed long-term manufacturability.

Supply support for TLV3402IDG4 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 and embedded processing solutions, with over 90 years of innovation in precision analog ICs and low-power design expertise.

The TLV340x family was engineered specifically for battery-constrained applications demanding nanoscale quiescent current without sacrificing input voltage flexibility or ruggedness - targeting portable healthcare, remote sensing, and energy-harvesting systems.

FAQ

What is the maximum input voltage allowed on TLV3402IDG4 pins?

The TLV3402IDG4 supports input voltages from –0.1 V to VCC + 5 V, with absolute maximum rating of VCC + 5 V (or 20 V, whichever is smaller). This allows safe high-side sensing and reverse-battery operation up to 18 V without damage - confirmed in Absolute Maximum Ratings section of the datasheet.

Does TLV3402IDG4 require external pull-up resistors on its outputs?

Yes - TLV3402IDG4 features open-drain outputs and requires external pull-up resistors to define logic-high voltage level. The datasheet specifies performance with 1 MΩ pull-up; values between 10 kΩ and 10 MΩ are usable depending on speed vs. power trade-offs. Pull-up voltage may differ from VCC (e.g., 3.3 V logic interfacing to 5 V supply).

Is TLV3402IDG4 compatible with single-supply operation at 2.5 V?

Yes - TLV3402IDG4 is fully specified for single-supply operation from 2.5 V to 16 V across its industrial temperature range (–40°C to +125°C). At 2.5 V, it maintains 470 nA typical supply current and retains full input common-mode range (–0.1 V to 7.5 V), enabling use in low-voltage energy-harvesting systems.

How does TLV3402IDG4 handle reverse battery connection?

TLV3402IDG4 includes built-in reverse battery protection rated up to 18 V. When VCC is reversed, internal circuitry blocks excessive current flow - preventing latch-up or permanent damage. This feature is validated per Absolute Maximum Ratings and eliminates need for external series diodes or protection FETs in battery-powered designs.

What is the propagation delay of TLV3402IDG4 under typical conditions?

At 25°C with 5 V supply, 1 MΩ pull-up, and 10 pF load, TLV3402IDG4 exhibits 55 µs tPLH (low-to-high) and 30 µs tPHL (high-to-low) under 50 mV input overdrive. Delay increases at lower overdrive (e.g., 175 µs at 2 mV) and higher temperature - all values are documented in Switching Characteristics table of the datasheet.