LTC6994IS6-1#TRPBF

Overview

The LTC6994IS6-1#TRPBF is a programmable delay block from the TimerBlox family, housed in a 6-lead plastic TSOT-23 package. It operates on a single supply voltage ranging from 2.25V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device provides a programmable delay range from 1µs to 33.6 seconds, determined by a master oscillator frequency set via an external resistor (RSET) and an internal clock divider (NDIV). The NDIV can be programmed to eight settings from 1 to 2^21 using the DIV pin. The output driver sources and sinks up to 20mA.

Feature Summary

• Configurable edge-delay functionality allowing selection between rising or falling edge propagation for the LTC6994-1 variant
• Dynamic delay adjustment capability through a separate control voltage input
• Noise discrimination features enabling pulse qualification and debouncing applications

Applications

• Noise discriminators and pulse qualifiers
• Switch debouncing circuits
• Delay matching in timing systems

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing this component. Confirm that the IS6 designation corresponds to the industrial temperature grade (-40°C to +85°C) and the S6 package type. Ensure compatibility with automotive requirements if applicable, as standard versions differ from AEC-Q100 qualified parts.

Selection Notes

Select the LTC6994-1 variant when only one transition edge requires delaying. Use the LTC6994-2 variant if both rising and falling edges must be delayed or if output inversion is needed. Choose the IS6 grade for industrial environments requiring operation down to -40°C. Ensure RSET values are within the 50kΩ to 800kΩ range for optimal performance.

Part Context

This component belongs to the Analog Devices TimerBlox family of silicon timing devices. It shares functional similarities with other models like the LTC6992 and LTC6994-2 but differs in specific delay configurations and polarity options. The IS6-1 suffix identifies it as the industrial grade, single-edge delay version in a TSOT-23 package.

Replacement Considerations

LTC6994IS6-1#TRMPBF is a mini-reel alternative with identical electrical specifications. For dual-edge delay requirements, consider the LTC6994IS6-2#TRPBF. Industrial grade DFN packages such as LTC6994IDCB-1#TRPBF offer thermal advantages but require different footprints.