TLC551CPG4

Programmable Timers And Oscillators Overview

The TLC551CPG4 is a single CMOS timer circuit manufactured by Texas Instruments. It operates within a supply voltage range of 2V to 18V and supports frequencies up to 500kHz. The device features a low quiescent current of 30µA and provides a push-pull output capable of sourcing or sinking 100mA. Packaged in an 8-pin PDIP, it functions as a drop-in replacement for the NE555 series while offering improved stability and lower power consumption.

Programmable Timers And Oscillators Feature Summary

• CMOS technology with 30µA quiescent current
• Wide supply voltage range: 2V to 18V
• Push-pull output stage with 100mA drive capability
• Direct pin-compatible replacement for NE555

Programmable Timers And Oscillators Applications

• Precision timing circuits
• Pulse generation
• DC-AC oscillation
• Time delay generation

Programmable Timers And Oscillators Part Context

This component belongs to the TLC555 family of timers, which are designed to replace standard bipolar 555 timers. The 'C' suffix indicates commercial temperature range operation (0°C to 70°C), and 'PG4' denotes a lead-free, RoHS-compliant package variant from Texas Instruments.

Programmable Timers And Oscillators Replacement Considerations

The TLC551CPG4 is electrically compatible with the NE555 and LM555. Designers should verify that the application does not require the higher operating temperature range (-55°C to 125°C) provided by the military-grade TLC555MJ/883B variants.