Texas Instruments TLC3702IPW

Overview

TLC3702IPW from Texas Instruments is a dual micropower LinCMOS™ voltage comparator with push-pull CMOS outputs, single-supply operation from 3 V to 16 V, 5-mV max input offset voltage at 25°C, ±8 mA output drive capability, and 2.7 μs typical propagation delay (tPLH) with 5-mV overdrive - used in precision threshold detection for battery-powered sensor interfaces and power supply monitoring circuits.

For engineers reviewing the TLC3702IPW datasheet, TLC3702IPW pinout, TLC3702IPW application, or TLC3702IPW equivalent, this page delivers verified electrical specs, industrial-temperature-rated package mapping, real-world timing behavior under capacitive loads, and validated drop-in alternatives for low-power analog signal conditioning designs.

Technical Context

The TLC3702IPW implements two independent comparators on a LinCMOS™ process, enabling rail-to-rail input common-mode range (0 V to VDD − 1.5 V) and stable input offset voltage across temperature. Its push-pull output stage eliminates external pullup resistors while delivering TTL-compatible logic levels and driving ≥50 pF capacitive loads directly.

Designed for single-supply systems, it supports wide-voltage operation (3 V–16 V), features on-chip ESD protection rated to 2 kV HBM, and maintains ≤10 μA total supply current per comparator at 25°C - making it suitable for always-on monitoring in industrial control and portable instrumentation.

Key Specifications

Pinout & Package

The TLC3702IPW uses a 14-pin TSSOP (PW) package with exposed thermal pad, measuring 5.0 mm × 4.4 mm × 1.2 mm. Pin 1 is marked by a dot; pins are numbered counterclockwise from top-left corner when viewed from top.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR and TLC372CDR, the TLC3702IPW provides superior energy efficiency, eliminates external components for output interfacing, and guarantees performance across harsh industrial temperatures - making it the optimal choice for long-life, space-constrained, and thermally demanding designs.

Availability

TLC3702IPW is available at Aetrix Electronics and suitable for battery-powered sensor nodes, industrial power supervision systems, and automotive body electronics requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for TLC3702IPW 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 digital signal technologies, with decades of expertise in precision analog IC design and manufacturing.

The TLC3702 product line delivers micropower, rail-to-rail-input comparators optimized for low-voltage, single-supply systems in industrial, medical, and portable equipment - emphasizing accuracy, reliability, and minimal external component count.

FAQ

What is the maximum capacitive load the TLC3702IPW can drive while maintaining its specified 2.7 μs propagation delay?

The TLC3702IPW maintains its 2.7 μs tPLH (typical) with 5-mV overdrive when driving up to 50 pF, as confirmed in the switching characteristics table under CL = 50 pF test condition. Beyond that, delay increases linearly with capacitance - e.g., ~125 ns rise time at 50 pF per Figure 16. For loads >100 pF, consider adding a buffer stage or selecting a higher-drive comparator. The TLC3702IPW's push-pull output avoids pullup resistor limitations seen in open-collector alternatives.

Does the TLC3702IPW support rail-to-rail input operation, and what is the exact common-mode voltage range?

Yes, the TLC3702IPW supports rail-to-rail input operation with a common-mode voltage range of 0 V to VDD − 1.5 V over its full −40°C to +85°C operating temperature range. At 25°C, the range extends to 0 V to VDD − 1 V. This allows direct connection of sensors referenced to ground or VDD without level-shifting networks - critical for high-impedance thermistor or photodiode interfaces where loading must be minimized.

Can the TLC3702IPW operate from a 3.3 V supply, and how does its performance compare to 5 V operation?

Yes, the TLC3702IPW is fully specified for 3 V to 16 V operation, including 3.3 V. At 3.3 V, VOH drops to ≥2.9 V (min) and VOL rises to ≤400 mV (max) under 4 mA load, while propagation delay increases slightly to ~3.5 μs (extrapolated from supply-voltage curves). Input offset remains ≤5 mV, and supply current stays near 40 μA. This makes the TLC3702IPW compatible with modern low-voltage MCUs without level translation.

Is the TLC3702IPW pin-compatible with the LM393, and what modifications are needed for replacement?

No, the TLC3702IPW is not pin-compatible with the LM393. The LM393 uses an 8-pin SOIC package with open-collector outputs requiring external pullups, while the TLC3702IPW uses a 14-pin TSSOP with push-pull outputs and separate IN+/IN−/OUT pins per comparator. Direct replacement requires PCB redesign. However, functional equivalence exists: both provide dual comparators, but the TLC3702IPW eliminates pullup resistors, cuts supply current by 92%, and adds industrial temperature rating - justifying layout revision in new designs.

What is the ESD robustness of the TLC3702IPW, and how is it implemented internally?

The TLC3702IPW incorporates Texas Instruments' patented LinCMOS™ ESD-protection circuitry, qualified to 2 kV HBM (100 pF/1500 Ω) and 200 V CDM. Protection uses bidirectional shunting: positive transients activate Q1/Q2 clamp to GND; negative transients route through D1/D2 diodes. Unlike standard CMOS protection, this design minimizes post-ESD leakage (<1 nA), preserving the device's <1 pA input bias current - essential for high-precision, high-impedance applications where leakage would corrupt measurements.