TLC352CPWR

Comparators Overview

The TLC352CPWR is a dual differential voltage comparator manufactured by Texas Instruments, housed in an 8-pin TSSOP package. It operates on a single supply voltage ranging from 2.7V to 16V or dual supplies with a total difference within the same range. The device features extremely low input bias current of 5pA typical and ultra-stable input offset voltage of 5mV maximum. It consumes only 150µA typical supply current at 5V and provides open-drain outputs compatible with TTL, MOS, and CMOS logic families.

Comparators Feature Summary

• Extremely high input impedance allowing direct interface to high-impedance sources
• Open-drain output stage enabling logical OR'ing and independent pull-up voltage selection
• Built-in electrostatic discharge protection circuits for enhanced reliability
• Pin-compatible replacement for LM393 comparators

Comparators Applications

• Low-voltage battery-powered monitoring systems
• Microprocessor reset circuit generation
• Window detector configurations
• Temperature sensing threshold detection
• Voltage level translation between different logic families

Comparators Procurement Notes

Verify the specific suffix requirements for tape and reel quantities when ordering surface-mount variants. Confirm that the operating temperature range matches the application environment, as commercial and industrial grades have distinct thermal limits. Ensure proper handling precautions are observed due to the sensitivity of the CMOS input structure to electrostatic discharge events during assembly.

Comparators Selection Notes

Select this component when designing power-constrained systems requiring low quiescent current consumption. The open-drain output architecture is suitable for interfacing with microcontrollers operating at different voltage levels than the comparator supply. Consider adding external hysteresis if the input signal transitions slowly near the switching threshold to prevent output chatter caused by noise.

Comparators Part Context

This device belongs to the TLC352 family of micro-power comparators fabricated using CMOS technology. It offers two independent channels within a compact footprint, designed for applications where space and power efficiency are critical constraints. The family supports both single and dual supply configurations, providing flexibility for various analog signal conditioning tasks in portable and industrial electronics.

Comparators Replacement Considerations

TLC352CDR

Comparators FAQ

How should unused comparator inputs be handled?

Do not tie unused inputs together as this may cause high-frequency oscillation due to internal noise. Instead, connect them to a valid voltage within the specified input range that maintains a minimum differential voltage of 50mV.

What is the recommended method for adding hysteresis?

Hysteresis can be implemented using positive feedback networks. Inverting configurations typically require a three-resistor network referenced to the supply, while non-inverting setups often use a two-resistor network with a voltage reference at the inverting input.

Can the output be shorted to the supply voltage?

Directly shorting the output to VDD can cause thermal runaway and device destruction, especially at high pull-up voltages above 12V. A series current-limiting resistor is recommended if output shorts are possible.