LTC6994IDCB-2#TRPBF

Overview

The LTC6994IDCB-2#TRPBF is a programmable delay block and debouncer from the TimerBlox family, housed in a 6-lead DFN package. It provides a delay range of 1µs to 33.6 seconds, configured via a single RSET resistor and an internal divider (NDIV) selectable from 1 to 2^21. The device operates on a single 2.25V to 5.5V supply with a typical idle current of 70µA at 10µs delay. It features a CMOS output driver capable of sourcing or sinking 20mA. The -2 suffix indicates functionality that delays both rising and falling edges, with an optional output inversion controlled by the DIV pin.

Feature Summary

• Configurable edge-delayed pulse qualification for noise filtering
• Dynamic delay adjustment capability via control voltage
• CMOS output stage with high drive strength

Applications

• Noise discriminators and pulse qualifiers
• Switch debouncing in mechanical interfaces
• Delay matching in signal paths

Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging requirements against project specifications. Confirm the IDCB variant meets the required industrial temperature range of –40°C to 85°C. Ensure the DFN-6 footprint matches the PCB layout constraints. Cross-reference the manufacturer's latest documentation for any product change notifications affecting this part number.

Selection Notes

Select the LTC6994IDCB-2#TRPBF when both rising and falling transitions require identical delay characteristics. Use the DIV pin resistor network to set the desired divider ratio and polarity. Ensure the RSET value falls within the 50kΩ to 800kΩ range to maintain oscillator stability. Verify that the load capacitance does not exceed limits that could degrade rise and fall times.

Part Context

This component belongs to the Analog Devices TimerBlox family of silicon timing devices. It serves as a versatile alternative to discrete RC delay circuits, offering precise programmability without external capacitors. The device integrates a master oscillator and digital filter to provide stable timing performance across varying supply voltages and temperatures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.