TLC551CPE4

Programmable Timers And Oscillators Overview

The TLC551CPE4 is a single timer circuit manufactured by Texas Instruments, belonging to the LinCMOS family. It operates within a supply voltage range of 1 V to 15 V and supports output types including CMOS, MOS, and TTL. The device features a high-level output current of 100 mA and a low-level output current of -10 mA. It consumes 170 µA of operating power and has a maximum power dissipation of 725 mW. Designed for surface-mount applications, it is housed in an SOIC-8 package and functions reliably within an operating temperature range of 0°C to +70°C.

Programmable Timers And Oscillators Feature Summary

• LinCMOS technology for low power consumption (170 µA) and wide voltage operation (1 V to 15 V)
• Versatile output compatibility with CMOS, MOS, and TTL logic families
• High drive capability with 100 mA source and -10 mA sink current
• Compact SOIC-8 surface-mount packaging

Programmable Timers And Oscillators Applications

• Timing and pulse generation circuits
• Delay generation applications
• Frequency division circuits

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's datasheet to confirm lead-free status and material composition changes. Ensure the SOIC-8 package dimensions match the target PCB footprint requirements. Confirm that the commercial temperature range (0°C to +70°C) meets the operational environment specifications before procurement.

Programmable Timers And Oscillators Selection Notes

Select this component when a single timer with low quiescent current and wide supply voltage flexibility is required. The LinCMOS technology offers advantages over standard bipolar timers regarding power efficiency. Verify that the 100 mA output current is sufficient for the load, as some applications may require external buffering if higher currents are needed.

Programmable Timers And Oscillators Part Context

The TLC551CPE4 is part of the TLC551 series, which provides single-timer functionality. It serves as a CMOS-compatible alternative to traditional bipolar timer ICs. The 'CPE4' designation indicates the commercial temperature grade, PDIP or SOIC package variant (datasheet specifies SOIC-8), and lead-free manufacturing process compliant with RoHS standards.

Programmable Timers And Oscillators Replacement Considerations

Direct pin-to-pin replacements include other single timers from the TLC551 family, such as the TLC551CD. Verify electrical parameters like output current and supply voltage ranges when substituting with generic 555-type timers, as performance characteristics may differ significantly.