TLC555IDG4

Overview

The TLC555IDG4 is a single standard timer manufactured by Texas Instruments, utilizing LinCMOS technology. It operates within a supply voltage range of 2 V to 15 V and supports frequencies up to 2.1 MHz. The device features a high-level output current of 100 mA and a low-level output current of -10 mA, with a typical operating supply current of 250 µA. It is housed in an 8-SOIC package and functions across a temperature range of -40 °C to +125 °C.

Feature Summary

• LinCMOS Technology: Offers lower power consumption compared to traditional bipolar timers while maintaining compatibility.
• Wide Voltage Range: Operates reliably from 2 V to 15 V, suitable for various power supply configurations.
• High Output Drive: Provides 100 mA source current and -10 mA sink current capability.
• Industrial Temperature Rating: Designed for operation between -40 °C and +125 °C.

Applications

• Precision timing circuits
• Pulse generation
• Logic clocks

Procurement Notes

Verify the specific suffix 'DG4' indicates lead-free packaging and RoHS compliance as per Texas Instruments standards. Confirm the SOIC-8 package dimensions match the target PCB footprint. Ensure the industrial temperature grade (-40°C to +125°C) meets the environmental requirements of the final assembly.

Selection Notes

Select this component when a CMOS-based 555 timer is required for lower static current consumption than bipolar equivalents. The 8-SOIC surface-mount package is appropriate for automated assembly processes. Verify that the 100 mA output drive is sufficient for the intended load without external buffering.

Part Context

This part belongs to the TLC555 series of LinCMOS timers from Texas Instruments. It serves as a direct pin-compatible replacement for standard bipolar 555 timers like the NE555, offering improved power efficiency and wider operating voltage ranges while retaining the classic functionality.

Replacement Considerations

Direct pin-compatible alternatives include the TLC555CDR (SOIC-8, commercial temp) and TLC555QDRG4 (SOIC-8, automotive/industrial temp). For through-hole applications, consider the TLC555CP or TLC555MJG.