LTC6994CDCB-2#TRMPBF

Overview

The LTC6994CDCB-2#TRMPBF is a programmable delay block and debouncer from the TimerBlox family, housed in a 6-lead (2mm x 3mm) plastic DFN package. It operates on a single supply voltage ranging from 2.25V to 5.5V with a typical supply current of 70µA at a 10µs delay. The device provides a delay range from 1µs to 33.6 seconds, determined by an internal master oscillator and a programmable clock divider (NDIV). The -2 suffix indicates functionality that delays both rising and falling transitions, with an option to invert the output via the POL bit.

Feature Summary

• Configurable delay block capable of delaying rising or falling edges independently or simultaneously
• Dynamic delay adjustment capability through a separate control voltage input
• CMOS output driver with high current sourcing and sinking capabilities

Applications

• Noise discriminators and pulse qualifiers
• Switch debouncing circuits
• Delay matching applications

Procurement Notes

Verify the specific temperature grade and package marking code against the official Analog Devices order information table. Confirm that the #TRMPBF suffix corresponds to the tape and reel mini packaging format required for automated assembly processes. Ensure the component meets the specified operating temperature range for the intended environment.

Selection Notes

Select the LTC6994-2 variant when both signal transitions require identical delay characteristics. Use the DIV pin resistor network to set the desired divider ratio and polarity. For precise timing, utilize precision resistors for RSET and ensure low capacitance on the SET and DIV pins to minimize jitter and settling time errors.

Part Context

This component belongs to the LTC6994 series within the TimerBlox family of silicon timing devices. It shares functional similarities with other members like the LTC6993 and LTC6990 but is specifically optimized for delay line and debouncing applications rather than oscillation or monostable generation.

Replacement Considerations

Direct substitutes include other variants within the LTC6994 family such as the LTC6994IDCB-2#TRMPBF or LTC6994HDCB-2#TRMPBF, which offer different operating temperature ranges while maintaining identical electrical performance and pinout compatibility.