LTC6994IDCB-1#TRMPBF

Overview

The LTC6994IDCB-1#TRMPBF is a programmable delay block from the TimerBlox family, housed in a 6-lead (2mm × 3mm) plastic DFN 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 delay range from 1µs to 33.6 seconds, programmed via a single resistor at the SET pin and a divider code at the DIV pin. It features a CMOS output driver capable of sourcing or sinking 20mA, with a typical supply current of 70µA at a 10µs delay setting.

Feature Summary

• Configurable delay functionality for rising or falling edges using a single external resistor
• Dynamic adjustment capability through a separate control voltage input
• Integrated digital filter for noise discrimination and pulse qualification
• Low power consumption suitable for battery-powered applications

Applications

• Noise discriminators and pulse qualifiers
• Switch debouncing circuits
• Delay matching in signal paths
• Timing elements for portable and battery-powered equipment

Procurement Notes

Verify the specific suffix #TRMPBF indicates mini tape and reel packaging when ordering. Confirm the 'I' grade designation matches the required industrial temperature range of –40°C to 85°C for your application environment. Ensure the DCB package dimensions align with your PCB footprint requirements before finalizing procurement.

Selection Notes

Select the LTC6994-1 variant if only one edge transition requires delaying. Choose the -2 variant if both rising and falling edges must be delayed or if output inversion is needed. Use the TimerBlox design tool to calculate precise RSET and DIV resistor values for target delay times within the specified accuracy limits.

Part Context

This component belongs to the Analog Devices TimerBlox family of silicon timing devices. It serves as a versatile delay block alternative to traditional RC networks or complex timer ICs. The IDCB-1 designation specifically identifies the industrial temperature grade version packaged in a low-profile DFN format.

Replacement Considerations

Direct functional replacements include other parts within the LTC6994 series such as the LTC6994CS6-1#TRMPBF for TSOT-23 packaging or the LTC6994HDCB-1#TRMPBF for extended temperature ranges. Verify pin compatibility and electrical specifications before substituting.