Texas Instruments TLC339ID

Overview

TLC339ID from Texas Instruments is a quad differential voltage comparator with open-drain CMOS outputs, designed for single-supply operation from 3 V to 16 V. It delivers 200 µW typical supply power at 5 V, 2.5 µs typical propagation delay with 5-mV overdrive, and 10¹² Ω typical input impedance - enabling precision threshold detection in battery-powered industrial sensors and power-supply supervision circuits.

For engineers reviewing the TLC339ID datasheet, TLC339ID pinout, TLC339ID application, or TLC339ID equivalent, key selection considerations include its −40°C to 85°C industrial temperature rating, 7 mV max input offset voltage across temperature, open-drain output compatibility with wired-AND logic and mixed-voltage interfaces, and LinCMOS™ process stability under differential input stress.

Technical Context

The TLC339ID implements four independent comparators using Texas Instruments' LinCMOS™ process, combining low-power CMOS advantages (e.g., pA-level input bias current) with analog-grade stability - including <0.23 µV/month input offset drift and robust common-mode rejection (84 dB min) across −40°C to 85°C. Its open-drain output stage requires an external pullup resistor and supports interfacing to TTL, CMOS, or microcontroller I/O pins.

Unlike push-pull comparators, the TLC339ID's output architecture enables wired-logic functions (e.g., OR/AND bus configurations) and level translation without additional components. Input common-mode range extends to VDD−1.5 V, supporting rail-to-rail sensing in 3.3 V and 5 V systems while maintaining guaranteed operation down to 3 V supply.

Key Specifications

Pinout & Package

Package: SOIC-14 (D package), surface-mount, 14-pin small-outline integrated circuit with standard 1.27 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM339DR and TLC3704CDR, the TLC339ID uniquely balances nanowatt-scale power, industrial-temperature stability, and open-drain flexibility - making it optimal for always-on, field-deployed systems requiring decades of unattended operation.

Availability

TLC339ID is available at Aetrix Electronics and suitable for motor control, power-supply supervision, battery management, and industrial sensor interface applications requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLC339ID 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, embedded processing, and connectivity technologies, with over 90 years of innovation in high-reliability electronic components.

The TLC339ID belongs to TI's LinCMOS™ comparator family, engineered for precision, low-power, single-supply operation in industrial automation, energy infrastructure, and mission-critical sensing systems.

FAQ

What is the maximum operating temperature range for the TLC339ID?

The TLC339ID is rated for industrial temperature operation from −40°C to +85°C. This specification is validated per TI's characterization data and applies across all electrical parameters in the datasheet, including input offset voltage (7 mV max), supply current (125 µA max), and propagation delay (≤4.5 µs at 2 mV overdrive). The device maintains full functionality within this range without derating.

Does the TLC339ID require external pullup resistors on its outputs?

Yes, the TLC339ID features open-drain CMOS outputs and requires external pullup resistors on each OUTx pin to establish a defined high logic level. Typical values range from 2.2 kΩ to 10 kΩ, selected based on rise time requirements and load capacitance. Pullup voltage may differ from VDD (e.g., 3.3 V pullup with 5 V VDD), enabling level translation - a key design advantage of the TLC339ID.

Can the TLC339ID operate from a 3.3 V supply?

Yes, the TLC339ID supports supply voltages from 3 V to 16 V, making it fully compatible with 3.3 V systems. At 3.3 V, the common-mode input range is 0 V to 1.8 V, and the open-drain outputs can sink ≥6 mA while maintaining VOL ≤400 mV (per datasheet test condition). This allows direct interface with 3.3 V logic families without level-shifting components.

How does the LinCMOS™ process benefit the TLC339ID in long-term applications?

The LinCMOS™ process used in the TLC339ID provides exceptional input offset voltage stability - typically <0.23 µV/month including the first 30 days - far exceeding standard CMOS comparators. This enables decade-long calibration retention in applications like environmental sensors or medical monitors, where recalibration intervals must be minimized and parametric drift directly impacts measurement integrity.

Is the TLC339ID pin-compatible with the LM339?

No, the TLC339ID is not pin-compatible with the LM339. While both are quad comparators in SOIC-14 packages, the TLC339ID uses the industry-standard pinout (GND at Pin 7, VDD at Pin 14), whereas the LM339 places GND at Pin 4 and VDD at Pin 12. Interchanging them without PCB revision will cause functional failure. Always verify pin mapping using the official TLC339ID datasheet before substitution.