Texas Instruments TLC393CPWR

Overview

TLC393CPWR 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 input offset voltage at 25°C - enabling precision threshold detection in battery-powered sensor interfaces and power supervision circuits.

For engineers reviewing the TLC393CPWR datasheet, TLC393CPWR pinout, TLC393CPWR application, or TLC393CPWR equivalent, key selection criteria include its commercial-temperature-range operation (0°C to 70°C), TSSOP-8 package footprint, open-drain output compatibility with pull-up networks, and LinCMOS™ process advantages including ultra-low bias current (5 pA typ) and high common-mode rejection (84 dB).

Technical Context

The TLC393CPWR implements two independent comparators on a single die using Texas Instruments' LinCMOS™ process, which combines standard CMOS low-power benefits with enhanced analog stability - notably extremely stable input offset voltage under differential stress. Its open-drain output stage requires external pull-up resistors and supports interfacing to multiple logic families and supply domains.

Unlike push-pull comparators, the TLC393CPWR's output structure enables wired-OR configurations and level translation across different rail voltages. Input common-mode range extends from −0.2 V to V_DD − 1.5 V, supporting operation near ground and rail-to-rail sensing when referenced appropriately.

Key Specifications

Pinout & Package

TSSOP-8 (PW) package: 3.0 mm × 4.4 mm, 0.65 mm pitch, exposed pad optional, RoHS-compliant, moisture sensitivity level 1.

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 TLC393CPWR uniquely balances micropower operation (22 µA), open-drain flexibility, and LinCMOS™ precision - making it optimal for space-constrained, battery-sensitive systems requiring configurable output interfacing.

Availability

TLC393CPWR is available at Aetrix Electronics and suitable for battery-powered instrumentation, industrial power supervision, and motor control applications requiring stable component supply across extended production lifecycles.

Supply support for TLC393CPWR 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 company specializing in analog and embedded processing technologies, with leadership in precision analog ICs and industrial-grade components.

The TLC393 series belongs to TI's LinCMOS™ comparator product line, engineered for ultra-low-power, high-precision voltage comparison in commercial-temperature environments - targeting portable, sensor, and power-management systems.

FAQ

What is the operating temperature range of the TLC393CPWR?

The TLC393CPWR is characterized for operation over the commercial temperature range of 0°C to 70°C. This rating is specified in the device's recommended operating conditions table and applies to all electrical parameters unless otherwise noted. The "C" suffix in TLC393CPWR denotes the commercial grade, distinct from industrial (I), automotive (Q), or military (M) variants. Operation outside this range may result in parametric degradation or functional failure.

Does the TLC393CPWR require external pull-up resistors on its outputs?

Yes, the TLC393CPWR requires external pull-up resistors on both 1OUT and 2OUT pins because it features open-drain CMOS outputs. Without a pull-up, the outputs remain floating in the high state. Typical values range from 2.2 kΩ to 10 kΩ depending on rise time and load requirements. The datasheet confirms this architecture in the "schematic" and "absolute maximum ratings" sections, specifying VO(max) = 16 V and IO(max) = 20 mA per output.

Can the TLC393CPWR operate from a 3.3-V supply?

Yes, the TLC393CPWR supports operation from 3 V to 16 V, including 3.3 V. Its input common-mode range extends down to −0.2 V and up to V_DD − 1.5 V, so at 3.3 V supply, valid input voltages span −0.2 V to 1.8 V. The device maintains specified performance - including 5 mV max offset and 22–40 µA supply current - across this full range, as verified in the "recommended operating conditions" and "electrical characteristics" tables.

How does the LinCMOS™ process benefit the TLC393CPWR compared to standard CMOS comparators?

The LinCMOS™ process used in the TLC393CPWR delivers superior analog performance versus standard CMOS: input offset voltage remains extremely stable even under multi-volt differential input stress, and input bias current is as low as 5 pA (typ). These traits enable reliable operation with high-impedance sensors and precision thresholding - unlike generic CMOS comparators that exhibit greater offset drift and leakage. TI explicitly cites these advantages in the device description and "Technical Context" sections.

Is the TLC393CPWR pin-compatible with the LM393?

No, the TLC393CPWR is not pin-compatible with the LM393. While both are dual comparators, the TLC393CPWR uses an 8-pin TSSOP (PW) package with pinout: 1OUT, 1IN−, 1IN+, GND, V_DD, 2OUT, 2IN−, 2IN+. The LM393 is typically offered in SOIC-8 or PDIP-8 with pinout: OUT1, IN1−, IN1+, GND, IN2+, IN2−, OUT2, V_CC. The reversed order of comparator 2 inputs and outputs prevents direct substitution without PCB redesign.