Texas Instruments TLC393IPW

Overview

TLC393IPW from Texas Instruments is a dual micropower voltage comparator with open-drain CMOS outputs, designed for single-supply operation from 3 V to 16 V. It delivers 110 µW typical supply power at 5 V, 2.5 µs typical propagation delay (t_PLH) with 5-mV overdrive, and 5 mV max input offset voltage across −40°C to 85°C - enabling precision threshold detection in battery-powered industrial sensors and power supervisors.

For engineers reviewing the TLC393IPW datasheet, TLC393IPW pinout, TLC393IPW application, or TLC393IPW equivalent, key selection criteria include its industrial-temperature-rated LinCMOS™ process, rail-to-rail input common-mode range (0 V to V_DD − 1.5 V), low 22–65 µA supply current, and compatibility with pull-up loads up to 16 V.

Technical Context

The TLC393IPW integrates two independent comparators on a single die using Texas Instruments' LinCMOS™ process, delivering high input impedance (>10¹² Ω), ultra-low input bias current (5 pA typ at 25°C), and stable input offset voltage (≤7 mV over −40°C to 85°C). Its open-drain output stage supports flexible interfacing with TTL, CMOS, or higher-voltage logic via external pull-up.

It operates with no phase reversal under differential input stress up to ±18 V and maintains >84 dB common-mode and supply-voltage rejection ratios across its full temperature range - critical for noisy industrial environments where reference stability and noise immunity are essential.

Key Specifications

Pinout & Package

TLC393IPW uses a 14-pin TSSOP (PW) package with exposed pad (not electrically connected), measuring 5.0 mm × 4.4 mm × 1.2 mm. Pin 1 is marked by a dot; pin numbering follows standard TSSOP convention (counterclockwise from top-left corner).

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR and TLC3702IPW, the TLC393IPW uniquely balances ultra-low power (22 µA), industrial temperature support (−40°C to 85°C), and open-drain flexibility - making it optimal for long-life embedded supervision where layout space and energy efficiency are constrained.

Availability

TLC393IPW is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power supervision, and motor control feedback requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC393IPW 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 for industrial, automotive, and communications markets.

The TLC393IPW belongs to TI's LinCMOS™ comparator family, engineered for precision, low-power, single-supply operation in harsh environments - targeting applications where input accuracy, thermal stability, and energy efficiency are critical.

FAQ

What is the operating temperature range of the TLC393IPW?

The TLC393IPW is characterized for operation from −40°C to +85°C, meeting industrial-grade environmental requirements. This range is explicitly defined in the datasheet's recommended operating conditions for the "TLC393I" variant, which corresponds to the "I" suffix in TLC393IPW. The device maintains specified performance-including ≤7 mV input offset voltage and 22–65 µA supply current-across this full span.

Does the TLC393IPW require external pull-up resistors on its outputs?

Yes, the TLC393IPW features open-drain CMOS outputs and requires external pull-up resistors to establish a valid HIGH logic level. The datasheet specifies that each output can sink up to 20 mA and tolerate voltages up to 16 V, allowing pull-ups to V_DD or higher rails. Typical values range from 2.2 kΩ to 10 kΩ depending on speed and load requirements.

Can the TLC393IPW operate from a 3.3-V supply?

Yes, the TLC393IPW supports supply voltages from 3 V to 16 V, including 3.3 V. At V_DD = 3.3 V, the common-mode input range is 0 V to 1.8 V, and the device maintains full functionality with verified propagation delay and offset specifications. Its LinCMOS™ process ensures stable operation even at minimum supply.

How does the TLC393IPW differ from the LM393 in terms of power consumption?

The TLC393IPW consumes approximately 110 µW typical at 5 V (22 µA supply current), roughly 1/20th the power of the LM393 (≈2.2 mW at 5 V). This dramatic reduction stems from TI's LinCMOS™ process, enabling micropower operation without sacrificing speed - t_PLH remains 2.5 µs at 5-mV overdrive, matching LM393 performance while extending battery life significantly.

Is the TLC393IPW pin-compatible with other TSSOP-14 comparators?

No, the TLC393IPW is not pin-compatible with generic TSSOP-14 comparators. Its pinout is specific to the dual-comparator configuration with NC pins at positions 9–14, as confirmed in the official TI datasheet SLCS115E. Substituting other devices requires verification of terminal mapping, especially for GND, V_DD, and output/inverting/non-inverting input assignments.