LTC6994MPS6-1#TRMPBF

Overview

The LTC6994MPS6-1#TRMPBF is a programmable delay block from the TimerBlox family, housed in a 6-lead Plastic TSOT-23 package. It provides a delay range of 1µs to 33.6 seconds, configured via a single resistor (RSET) and an internal clock divider (NDIV). The device operates on a single supply voltage between 2.25V and 5.5V with a typical supply current of 70µA at a 10µs delay. It features a CMOS output driver capable of sourcing and sinking 20mA. The component is qualified for automotive applications under AEC-Q100 standards and supports an extended operating temperature range from –55°C to 125°C.

Feature Summary

• Configurable delay functionality allowing selection of rising or falling edge delays through polarity control
• Dynamic adjustment capability for delay time via a separate control voltage input
• Integrated noise discrimination and pulse qualification logic to filter short signals
• Automotive-grade reliability with specified performance across extreme temperature variations

Applications

• Noise discriminators and pulse qualifiers in signal processing circuits
• Switch debouncing mechanisms for mechanical inputs
• Delay matching applications requiring precise timing alignment
• Operation in high vibration and high acceleration environments
• Portable and battery-powered equipment requiring low power consumption

Procurement Notes

Verify the specific MPS6 suffix indicates the military/extended grade variant with –55°C to 125°C operation. Confirm the -1 designation ensures single-edge delay functionality rather than dual-edge. Check for the #W suffix if automotive quality reports are required. Ensure the TRMPBF suffix matches the mini tape and reel packaging specification needed for assembly.

Selection Notes

Select this model when an extended temperature range below –40°C is required for harsh environments. Use the -1 version if only one transition edge requires delaying. Configure the delay using RSET and DIV pin resistors to set the master oscillator and divider ratio. Ensure the output load does not exceed the 20mA drive capability without external limiting.

Part Context

This component belongs to the Analog Devices TimerBlox family of silicon timing devices. It shares architectural similarities with the LTC6994-2, which delays both edges and offers inversion. The MPS6 package variant distinguishes it from standard industrial or commercial grades by its wider thermal operating window and automotive qualification status.

Replacement Considerations

LTC6994IS6-1#TRMPBF: Industrial grade (-40°C to 85°C), same package and function.

FAQ

How is the delay time programmed?

The delay is determined by a master oscillator frequency set by a resistor on the SET pin and an internal clock divider ratio selected by the voltage on the DIV pin.

What is the difference between the -1 and -2 versions?

The -1 version delays either the rising or falling edge based on configuration, while the -2 version delays both transitions and can optionally invert the output.

Can the delay be adjusted dynamically after startup?

Yes, the delay time can be dynamically adjusted by changing the control voltage on the SET pin or the divider code on the DIV pin.