Texas Instruments TLC374CPW

Overview

TLC374CPW from Texas Instruments is a LinCMOS™ quadruple differential comparator IC designed for single- or dual-supply operation across 2 V to 18 V. It delivers 200 ns typical response time (TTL-level input step), 0.3 mA typical supply current at 5 V, 5 pA typical input bias current, and open-drain n-channel outputs compatible with TTL/MOS/CMOS logic-used in precision voltage monitoring, window detection, and analog-to-digital interface circuits.

For engineers reviewing the TLC374CPW datasheet, TLC374CPW pinout, TLC374CPW application, or TLC374CPW equivalent, key selection criteria include its 14-pin TSSOP package, rail-to-rail common-mode input range including ground, ultralow input offset drift (0.23 µV/month), and pin compatibility with LM339 in level-shifted comparator designs.

Technical Context

The TLC374CPW integrates four independent comparators on a single LinCMOS™ die, each featuring high-impedance inputs (>10¹² Ω) and open-drain outputs enabling wired-AND logic configurations. Its internal ESD protection meets 1000-V HBM rating, and it operates over 0°C to 70°C with 5 mV max input offset voltage at 25°C.

Designed for single-supply systems, it supports common-mode input voltages from ground to VDD–1.5 V and tolerates differential inputs up to ±18 V. Output stage behavior is defined by external pull-up configuration, with VOL = 150–400 mV at IOL = 4 mA and IOH ≤ 1 µA at VOH = 15 V.

Key Specifications

Pinout & Package

TSSOP-14 (PW) package: 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not electrically connected, RoHS-compliant NiPdAu lead finish, MSL Level-1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM339DR and TLC374CDR, the TLC374CPW offers superior speed (200 ns vs. 1.5 µs), lower quiescent current (0.3 mA vs. 25 µA), and verified 1000-V HBM ESD protection-making it optimal for space-constrained, low-power, and ESD-sensitive industrial designs.

Availability

TLC374CPW is available at Aetrix Electronics and suitable for power supply supervision, motor control feedback, and industrial sensor interface applications requiring stable component supply across commercial temperature ranges.

Supply support for TLC374CPW 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 over 50 years of innovation in precision analog ICs and industrial-grade components.

The TLC374CPW belongs to TI's LinCMOS™ comparator family, engineered for high-input-impedance, low-power, and ESD-robust operation in commercial industrial systems where reliability and parametric stability are critical.

FAQ

What is the maximum supply voltage rating for the TLC374CPW?

The TLC374CPW has an absolute maximum supply voltage (VDD) rating of 18 V. Operation beyond this value risks permanent damage. Recommended operating range is 3 V to 16 V per datasheet specifications, with full functionality maintained across that span. The TLC374CPW must never be operated above 18 V, even transiently, to ensure device integrity and long-term reliability.

Does the TLC374CPW support dual-supply operation?

Yes, the TLC374CPW supports dual-supply operation provided the difference between VDD and GND remains within 2 V to 18 V. For example, it can operate with +5 V and –5 V supplies (10 V total), or +12 V and –3 V (15 V total). Input common-mode range extends to ground, allowing signals referenced to either rail. The TLC374CPW does not require symmetrical supplies.

What is the purpose of the open-drain output configuration in the TLC374CPW?

The TLC374CPW features n-channel open-drain outputs to enable wired-AND logic, level translation, and flexible pull-up voltage selection. Each output sinks current only and requires an external pull-up resistor to define the high-state voltage-supporting interfaces with TTL, CMOS, or MOS logic at voltages up to 18 V. This design avoids bus contention and simplifies multi-comparator logic combining in the TLC374CPW.

Can the TLC374CPW replace the LM339 in existing designs?

Yes, the TLC374CPW is pin-compatible with the LM339 in TSSOP-14 and SOIC-14 packages and shares identical pin functions. However, the TLC374CPW offers faster response (200 ns vs. 1.3 µs), lower supply current (0.3 mA vs. 25 µA), and built-in 1000-V HBM ESD protection-requiring no layout changes but delivering measurable performance upgrades in the TLC374CPW implementation.

What is the input offset voltage drift specification for the TLC374CPW?

The TLC374CPW exhibits ultrastable input offset voltage drift of typically 0.23 µV/month, including the first 30 days of operation. This specification is measured under worst-case input conditions and reflects long-term parametric stability critical for calibration-critical applications. The TLC374CPW achieves this via LinCMOS™ process optimization and on-die biasing techniques, not external trimming.