Texas Instruments TLC393IPWR

Overview

TLC393IPWR 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 TLC393IPWR datasheet, TLC393IPWR pinout, TLC393IPWR application, or TLC393IPWR equivalent, key selection considerations include its LinCMOS™ process advantages (low bias current, high input impedance), extended temperature range, open-drain output compatibility with mixed-voltage logic, and direct functional equivalence to LM393 with 20× lower power consumption.

Technical Context

The TLC393IPWR integrates two independent comparators on a single die using Texas Instruments' LinCMOS™ process, delivering stable input offset voltage (≤5 mV) even under differential input stress up to ±18 V. Its open-drain MOS output stage requires external pull-up and supports interfacing to TTL, CMOS, or microcontroller I/O pins across varying supply domains.

It operates with rail-to-rail common-mode input range (0 V to V_DD − 1.5 V), achieves 84 dB common-mode rejection ratio (CMMR) and 85 dB supply-voltage rejection ratio (kSVR) over full temperature range, and maintains low quiescent current (22–65 µA) without sacrificing response speed - making it suitable for low-power analog monitoring where signal integrity and thermal stability are critical.

Key Specifications

Pinout & Package

TLC393IPWR is housed in an 8-pin TSSOP (PW) package with 0.65 mm pitch, measuring 3.0 mm × 4.4 mm × 1.2 mm (max height), optimized for space-constrained PCB layouts and automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR and TLC3702IPWR, TLC393IPWR uniquely balances ultra-low power (65 µA max), industrial temperature support (−40°C to 85°C), and open-drain flexibility - making it optimal for battery-backed supervision and mixed-voltage interface designs where layout area and energy efficiency are constrained.

Availability

TLC393IPWR is available at Aetrix Electronics and suitable for battery-powered sensors, industrial power supervisors, and motor protection circuits requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for TLC393IPWR 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 analog ICs and industrial-grade components.

The TLC393 family belongs to TI's legacy LinCMOS™ comparator product line, engineered specifically for low-power, high-stability voltage comparison in harsh industrial and automotive environments where reliability and parametric consistency are mission-critical.

FAQ

What is the maximum operating temperature range for the TLC393IPWR?

The TLC393IPWR is characterized for operation from −40°C to +85°C, meeting extended industrial temperature requirements. This range is validated per the datasheet's recommended operating conditions and electrical characteristics tables, ensuring guaranteed performance of parameters including input offset voltage (≤5 mV), supply current (≤65 µA), and propagation delay (≤4.5 µs) across the full span.

Does the TLC393IPWR require external pull-up resistors on its outputs?

Yes, the TLC393IPWR features open-drain CMOS outputs and requires external pull-up resistors on both 1OUT and 2OUT pins to establish valid high-level logic states. Typical values range from 2.2 kΩ to 10 kΩ pulled to V_DD or another logic rail, enabling level translation and wired-OR functionality - a core design feature confirmed in the absolute maximum ratings and application schematics of the official datasheet.

How does the TLC393IPWR differ from the standard LM393 in terms of power consumption?

The TLC393IPWR consumes approximately one-twentieth the supply current of the LM393 while maintaining comparable response times: 22–65 µA typical vs. ~500 µA for LM393 at 5 V. This 20× reduction is achieved via Texas Instruments' LinCMOS™ process and is explicitly stated in the device description section of the datasheet, enabling multi-year operation in energy-constrained applications where LM393 would drain batteries prematurely.

Can the TLC393IPWR operate from a 3-V supply?

Yes, the TLC393IPWR supports a minimum supply voltage of 3 V per its recommended operating conditions, with verified functionality including input common-mode range (0 V to V_DD − 1.5 V), output low voltage (≤700 mV @ I_OL = 6 mA), and propagation delay (≤4.5 µs) across the full −40°C to +85°C range - making it compatible with single-cell Li-ion and 3.3-V system rails.

Is the TLC393IPWR pin-compatible with other packages in the TLC393 family?

No - the TLC393IPWR uses the 8-pin TSSOP (PW) package, while other variants like TLC393ID use SOIC (D) or PDIP (P) packages. Although all share identical pin functions and numbering (1OUT, 1IN−, 1IN+, GND, V_DD, 2OUT, 2IN−, 2IN+), mechanical dimensions, thermal characteristics, and reflow profiles differ; PCB layout must match the PW footprint, and no pin-to-pin drop-in replacement exists across package types.