Texas Instruments TLC339CDR

Overview

TLC339CDR 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 2.5 µs typical propagation delay with 5-mV overdrive, consumes only 200 µW typical at 5 V, and features 10¹² Ω typical input impedance - enabling precision threshold detection in battery-powered sensor interfaces and power supervision circuits.

For engineers reviewing the TLC339CDR datasheet, TLC339CDR pinout, TLC339CDR application, or TLC339CDR equivalent, key selection considerations include its commercial-temperature-range (0°C to 70°C) rating, SOIC-14 package with tape-and-reel delivery, low-input-bias-current LinCMOS™ architecture, and compatibility with wired-OR logic and pull-up-based level translation.

Technical Context

The TLC339CDR implements four independent comparators using Texas Instruments' LinCMOS™ process, which combines high input impedance and ultra-low bias current with stable input offset voltage (≤6.5 mV max over 0°C–70°C). Its open-drain output stage requires external pull-up resistors and supports interfacing across mixed-voltage domains.

It operates without dual supplies, accepts common-mode inputs down to −0.2 V (with 3-V minimum VDD), and maintains functional integrity under differential input stresses up to ±18 V - enabled by on-chip ESD protection rated to 2000 V per MIL-STD-883C Method 3015.2.

Key Specifications

Pinout & Package

Package: SOIC-14 (D package), 8.65 mm × 3.91 mm body, 1.27 mm pitch, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM339DR and TLC3704CDR, the TLC339CDR uniquely balances ultra-low power (200 µW), fast response (2.5 µs), and open-drain flexibility - making it optimal for portable, multi-rail, and logic-interface-sensitive designs where power efficiency and wiring simplicity are co-primary constraints.

Availability

TLC339CDR is available at Aetrix Electronics and suitable for battery management systems, industrial power supervisors, motor control safety monitors, and sensor interface modules requiring stable component supply across production lifecycles.

Supply support for TLC339CDR 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 precision signal conditioning and power management ICs.

The TLC339 series belongs to TI's LinCMOS™ comparator family, engineered specifically for low-power, high-accuracy voltage comparison in single-supply systems - targeting applications where input impedance, offset stability, and quiescent current are critical design parameters.

FAQ

What is the operating temperature range for the TLC339CDR?

The TLC339CDR is specified for the commercial temperature range of 0°C to 70°C. This rating is confirmed in the "recommended operating conditions" table for TLC339C devices and applies specifically to the D-package variants marked "TLC339CD" and "TLC339CDR". The R suffix denotes tape-and-reel packaging but does not alter thermal specifications.

Does the TLC339CDR require external pull-up resistors on its outputs?

Yes, the TLC339CDR features open-drain CMOS outputs and requires external pull-up resistors to define the high-state voltage level. Each output can sink up to 20 mA, and the total current to ground must not exceed 60 mA. Pull-up values are typically selected between 2.2 kΩ and 10 kΩ depending on rise time and power trade-offs.

Can the TLC339CDR operate from a 3.3-V supply?

Yes, the TLC339CDR supports supply voltages from 3 V to 16 V, making it fully compatible with standard 3.3-V logic systems. At 3.3 V, its input common-mode range extends from −0.2 V to 1.8 V, and propagation delay increases slightly versus 5-V operation - verified in Figure 14 and Figure 15 of the datasheet.

What is the maximum input differential voltage the TLC339CDR can tolerate?

The absolute maximum differential input voltage (VID) for the TLC339CDR is ±18 V, as stated in the Absolute Maximum Ratings table. This specification applies regardless of supply voltage and ensures robustness against transient overvoltage events at the comparator inputs.

Is the TLC339CDR pin-compatible with the LM339?

Yes, the TLC339CDR uses the same SOIC-14 pinout as the LM339, including identical assignments for all four comparator inputs, outputs, VDD, and GND. However, differences in electrical behavior - such as input bias current (pA vs nA), supply current (80 µA vs 500 µA), and propagation delay - require validation in the target application before substitution.