Texas Instruments TLC339CPWR

Overview

TLC339CPWR 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 level detection in battery-powered sensor interfaces and power supply supervisors.

For engineers reviewing the TLC339CPWR datasheet, TLC339CPWR pinout, TLC339CPWR application, or TLC339CPWR equivalent, key selection criteria include its TSSOP-14 package, commercial temperature range (0°C to 70°C), low-power LinCMOS™ architecture, and compatibility with wired-AND logic and pull-up-based output interfacing.

Technical Context

The TLC339CPWR implements four independent comparators using Texas Instruments' LinCMOS™ process, delivering high input impedance and ultra-low bias currents while maintaining 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 wired-logic configurations.

It operates across a wide common-mode input range (−0.2 V to VDD−1.5 V) and exhibits 84 dB minimum common-mode rejection ratio and 85 dB supply-voltage rejection ratio at 25°C - critical for noise-immune threshold detection in mixed-signal systems.

Key Specifications

Pinout & Package

TLC339CPWR is housed in a 14-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, optimized for compact PCB layouts and automated surface-mount assembly. The package is RoHS-compliant, lead-finished with NiPdAu, and rated MSL Level-1 (260°C peak reflow).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM339DR and TLC3704IPW, the TLC339CPWR uniquely balances ultra-low quiescent power, fast response, and open-drain flexibility - making it optimal for space- and energy-constrained designs requiring bus-compatible outputs.

Availability

TLC339CPWR is available at Aetrix Electronics and suitable for battery monitoring, motor control, power supervision, and clock generation applications requiring stable component supply, consistent parametric performance, and long-term manufacturability.

Supply support for TLC339CPWR 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 low-power design.

The TLC339CPWR belongs to TI's LinCMOS™ comparator family, engineered specifically for applications demanding high input impedance, minimal power consumption, and reliable single-supply operation in commercial-grade environments.

FAQ

What is the operating temperature range for the TLC339CPWR?

The TLC339CPWR is specified for the commercial temperature range of 0°C to 70°C. This rating is explicitly confirmed in the "AVAILABLE OPTIONS" table and "recommended operating conditions" section of the datasheet, where TLC339C variants (including CPW package) are listed with TA = 0°C to 70°C. It is not rated for industrial (−40°C to 85°C) or extended ranges.

Does the TLC339CPWR require external pull-up resistors on its outputs?

Yes, the TLC339CPWR features open-drain CMOS outputs and requires external pull-up resistors to establish a defined logic-high level. The datasheet confirms this architecture in the "description" section and shows pull-up resistors (e.g., 5.1 kΩ) in all application schematics (Figures 19–21). Without pull-ups, outputs remain floating in the high state.

Can the TLC339CPWR operate from a 3.3 V supply?

Yes, the TLC339CPWR supports supply voltages from 3 V to 16 V, explicitly stated in the "recommended operating conditions" table for the TLC339C variant. At 3.3 V, it maintains full functionality including input common-mode range down to −0.2 V and output low-level voltage ≤650 mV (with 6 mA load), making it compatible with modern low-voltage systems.

What is the maximum input voltage allowed at the comparator inputs of the TLC339CPWR?

The absolute maximum input voltage for TLC339CPWR is −0.3 V to VDD, as specified in the "absolute maximum ratings" table. Exceeding this range risks forward-biasing internal ESD diodes. However, for proper comparator operation, inputs must stay within the common-mode range: −0.2 V to VDD−1.5 V (e.g., −0.2 V to 3.5 V at VDD = 5 V).

Is the TLC339CPWR pin-compatible with the LM339?

No, the TLC339CPWR is not pin-compatible with the LM339. While both are quad comparators in 14-pin packages, the TLC339CPWR uses a TSSOP-14 footprint (0.65 mm pitch), whereas the LM339 typically uses SOIC-14 (1.27 mm pitch) or PDIP-14. More critically, the pin assignments differ: TLC339CPWR places GND at Pin 6 and VDD at Pin 11, while LM339 places GND at Pin 4 and VDD at Pin 12 - requiring PCB redesign for substitution.