Texas Instruments TLC372CPWR

Overview

TLC372CPWR from Texas Instruments is a dual CMOS voltage comparator with open-drain outputs, designed for single- or dual-supply operation across 3V–16V. It delivers 200ns typical response time for TTL-level input steps, ultra-low 5pA typical input bias current, and rail-to-rail common-mode input range including ground - enabling precise threshold detection in battery-powered sensor interfaces and power monitoring circuits.

For engineers reviewing the TLC372CPWR datasheet, TLC372CPWR pinout, TLC372CPWR application, or TLC372CPWR equivalent, key selection criteria include its open-drain output architecture, 150µA typical supply current at 5V, −40°C to 85°C industrial temperature rating, and pin compatibility with LM393 in TSSOP-8 packaging.

Technical Context

The TLC372CPWR integrates two independent high-impedance (10¹²Ω typical) CMOS differential comparators on a single die, each featuring an n-channel open-drain output stage capable of sinking up to 16mA. Its input stage operates with no phase inversion across the full common-mode range (0V to VDD−1.5V), supporting direct interfacing with high-impedance sources like thermistors or photodiodes.

Internal ESD protection (1000V HBM) and ultra-stable input offset voltage (≤5mV max at 25°C) ensure robustness in noisy industrial environments. The device supports wired-AND logic via shared pull-up resistors and enables level translation by allowing output pull-up voltages up to 16V - independent of the 3V–16V VDD supply.

Key Specifications

Pinout & Package

TLC372CPWR is housed in a 8-pin TSSOP (PW) package with 0.65mm pitch, optimized for compact PCB layouts and automated assembly. Thermal impedance θJA = 149°C/W supports operation up to 85°C ambient without forced cooling.

Key Features

Applications

Equivalent & Alternatives

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

Compared with LM393DR, TLC372CPWR offers 50× lower input bias current and integrated ESD protection, making it superior for precision analog sensing; compared with TLC372IPW, it shares identical specifications and is the designated industrial-temperature variant for volume production.

Availability

TLC372CPWR is available at Aetrix Electronics and suitable for battery management systems, industrial motor controllers, and programmable logic interface circuits requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for TLC372CPWR 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 signal conditioning and power management ICs.

The TLC372CPWR belongs to TI's legacy precision comparator family, engineered for low-power, high-impedance applications where input bias current, offset stability, and supply flexibility are critical - such as sensor front-ends and power supervision in industrial and automotive subsystems.

FAQ

What is the operating temperature range for the TLC372CPWR?

The TLC372CPWR is characterized for operation from −40°C to +85°C, meeting industrial temperature requirements. This range is confirmed in the device comparison table and recommended operating conditions section of the official datasheet, and applies specifically to the 'I' grade in PW package - which matches the TLC372CPWR ordering code.

Does the TLC372CPWR support dual-supply operation?

Yes, the TLC372CPWR supports dual-supply operation when the difference between V+ and V− is maintained between 3V and 16V. The common-mode input range extends from V− to V+−1.5V, and the outputs swing relative to V−. This capability is explicitly stated in the Description and Recommended Operating Conditions sections of the datasheet.

What is the maximum sink current capability of the TLC372CPWR outputs?

The TLC372CPWR outputs can sink up to 16mA per channel at VOL = 1.5V (25°C), as specified in the Electrical Characteristics table. At full temperature range (−40°C to 85°C), the minimum guaranteed sink current is 6mA under the same conditions - sufficient to directly drive LEDs, small relays, or logic inputs with appropriate pull-up design.

Is the TLC372CPWR pin-compatible with the LM393?

Yes, the TLC372CPWR is pin-compatible with the LM393 in the TSSOP-8 (PW) package. Both devices share identical pin assignments (OUT A, IN− A, IN+ A, GND, IN+ B, IN− B, OUT B, VDD), enabling direct replacement in existing layouts without PCB modification - a key feature highlighted in the "Features" section of the datasheet.

What external components are required for proper operation of the TLC372CPWR?

The TLC372CPWR requires a 0.1µF ceramic bypass capacitor placed directly between VDD and GND pins, as mandated in the Power Supply Recommendations section. Each open-drain output needs an external pull-up resistor (typically 1kΩ–10kΩ) to the desired logic voltage. No pull-down resistors are needed - unused inputs must be tied to valid voltages within the common-mode range, not shorted together.