TLC555QDRQ1

Programmable Timers And Oscillators Overview

The TLC555QDRQ1 is a single automotive-grade CMOS timer manufactured by Texas Instruments. It operates on a supply voltage range of 2V to 15V and supports frequencies up to 2.1MHz. The device features low power consumption with a typical supply current of 360µA. It utilizes the LinCMOS process technology, ensuring compatibility with CMOS, TTL, and MOS logic families. The component is housed in an 8-SOIC package and is qualified under AEC-Q100 standards for automotive applications.

Programmable Timers And Oscillators Feature Summary

• Automotive grade qualification (AEC-Q100) suitable for high-reliability vehicle electronics
• Low power consumption with 360µA supply current at 5V
• High-speed operation with a maximum frequency of 2.1MHz
• Rail-to-rail output swing compatible with CMOS, TTL, and MOS logic

Programmable Timers And Oscillators Applications

• Automotive timing circuits requiring AEC-Q100 compliance
• Pulse generation and position modulation systems
• Linear ramp generator designs
• Sequence timing and delay generation modules

Programmable Timers And Oscillators Procurement Notes

Verify the specific suffix QDRQ1 against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match the design requirements. Ensure the SOIC-8 package dimensions align with the PCB footprint. Confirm that the AEC-Q100 qualification level meets the target automotive application's reliability standards before finalizing procurement.

Programmable Timers And Oscillators Selection Notes

Select this component when an automotive-qualified 555 timer is required. Compare the 2.1MHz frequency limit and 360µA current draw against system constraints. Verify that the 2V to 15V operating voltage range covers the intended supply rails. Consider the 8-SOIC package size relative to available board space compared to through-hole alternatives like the TLC555CP.

Programmable Timers And Oscillators Part Context

This part belongs to the TLC555 family of low-power CMOS timers from Texas Instruments. It serves as a modern, energy-efficient replacement for traditional bipolar 555 timers like the NE555. The 'Q' designation indicates automotive qualification, while 'DRQ1' specifies the tape-and-reel packaging and specific manufacturing lot codes within the SOIC-8 form factor.

Programmable Timers And Oscillators Replacement Considerations

Direct functional replacements include other automotive-qualified variants such as the TLC555ZQDRQ1. For non-automotive applications, the standard TLC555QDR may be considered if AEC-Q100 certification is not mandatory. Verify pin compatibility and thermal dissipation limits when substituting.