LTC6994 - TimerBlox: Delay Block/ Debouncer

Features

  • Delay Range: 1μs to 33.6 Seconds
  • Configured with 1 to 3 Resistors
  • Delay Max Error:
     -  <2.3% for Delay > 512µs
     -  <3.4% for Delay of 8µs to 512µs
     -  <5.1% for Delay of 1µs to 8µs
  • Delay One or Both Rising/Falling Edges
  • 2.25V to 5.5V Single Supply Operation
  • 70μA Supply Current at 10μs Delay
  • 500μs Start-Up Time
  • CMOS Output Driver Sources/Sinks 20mA
  • –55°C to 125°C Operating Temperature Range
  • Available in Low Profile (1mm) SOT-23 (ThinSOT™) and 2mm × 3mm DFN
  • Click here to start your design with the LTC6994 Online Design Tool!
Designed for Automotive and Transportation Applications
AEC-Q100 generic family data available for specific packages


Typical Application

LTC6994-1 Typical Application
LTC6994-1 Typical Application

Description

The LTC®6994 is a programmable delay block with a range of 1μs to 33.6 seconds. The LTC6994 is part of the TimerBlox® family of versatile silicon timing devices.

A single resistor, RSET , programs an internal master oscillator frequency, setting the LTC6994’s time base. The input-to-output delay is determined by this master oscillator and an internal clock divider, NDIV , programmable to eight settings from 1 to 221:

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing
RoHS
LTC6994CDCB-1#PBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CDCB-1#TRMPBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CDCB-1#TRPBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CDCB-2#PBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CDCB-2#TRMPBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CDCB-2#TRPBF 2x3 DFN-6 DCB C 05-08-1715 Yes
LTC6994CS6-1#PBF SOT-23 S6 C 05-08-1636 Yes
LTC6994CS6-1#TRMPBF SOT-23 S6 C 05-08-1636 Yes
LTC6994CS6-1#TRPBF SOT-23 S6 C 05-08-1636 Yes
LTC6994CS6-2#PBF SOT-23 S6 C 05-08-1636 Yes
LTC6994CS6-2#TRMPBF SOT-23 S6 C 05-08-1636 Yes
LTC6994CS6-2#TRPBF SOT-23 S6 C 05-08-1636 Yes
LTC6994HDCB-1#PBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HDCB-1#TRMPBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HDCB-1#TRPBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HDCB-2#PBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HDCB-2#TRMPBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HDCB-2#TRPBF 2x3 DFN-6 DCB H 05-08-1715 Yes
LTC6994HS6-1#PBF SOT-23 S6 H 05-08-1636 Yes
LTC6994HS6-1#TRMPBF SOT-23 S6 H 05-08-1636 Yes
LTC6994HS6-1#TRPBF SOT-23 S6 H 05-08-1636 Yes
LTC6994HS6-2#PBF SOT-23 S6 H 05-08-1636 Yes
LTC6994HS6-2#TRMPBF SOT-23 S6 H 05-08-1636 Yes
LTC6994HS6-2#TRPBF SOT-23 S6 H 05-08-1636 Yes
LTC6994IDCB-1#PBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IDCB-1#TRMPBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IDCB-1#TRPBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IDCB-2#PBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IDCB-2#TRMPBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IDCB-2#TRPBF 2x3 DFN-6 DCB I 05-08-1715 Yes
LTC6994IS6-1#PBF SOT-23 S6 I 05-08-1636 Yes
LTC6994IS6-1#TRMPBF SOT-23 S6 I 05-08-1636 Yes
LTC6994IS6-1#TRPBF SOT-23 S6 I 05-08-1636 Yes
LTC6994IS6-2#PBF SOT-23 S6 I 05-08-1636 Yes
LTC6994IS6-2#TRMPBF SOT-23 S6 I 05-08-1636 Yes
LTC6994IS6-2#TRPBF SOT-23 S6 I 05-08-1636 Yes
LTC6994MPS6-1#PBF SOT-23 S6 MP 05-08-1636 Yes
LTC6994MPS6-1#TRMPBF SOT-23 S6 MP 05-08-1636 Yes
LTC6994MPS6-1#TRPBF SOT-23 S6 MP 05-08-1636 Yes
LTC6994MPS6-2#PBF SOT-23 S6 MP 05-08-1636 Yes
LTC6994MPS6-2#TRMPBF SOT-23 S6 MP 05-08-1636 Yes
LTC6994MPS6-2#TRPBF SOT-23 S6 MP 05-08-1636 Yes


LTC6994-1 Package Drawing
LTC6994-1 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6994CDCB-1#PBF 2x3 DFN-6 C $1.88 Yes
LTC6994CDCB-1#TRMPBF 2x3 DFN-6 C $1.88 $1.40 Yes
LTC6994CDCB-1#TRPBF 2x3 DFN-6 C $1.88 $1.35 Yes
LTC6994CDCB-2#PBF 2x3 DFN-6 C $1.88 Yes
LTC6994CDCB-2#TRMPBF 2x3 DFN-6 C $1.88 $1.40 Yes
LTC6994CDCB-2#TRPBF 2x3 DFN-6 C $1.88 $1.35 Yes
LTC6994CS6-1#PBF SOT-23 C $1.88 Yes
LTC6994CS6-1#TRMPBF SOT-23 C $1.88 $1.40 Yes
LTC6994CS6-1#TRPBF SOT-23 C $1.88 $1.35 Yes
LTC6994CS6-2#PBF SOT-23 C $1.88 Yes
LTC6994CS6-2#TRMPBF SOT-23 C $1.88 $1.40 Yes
LTC6994CS6-2#TRPBF SOT-23 C $1.88 $1.35 Yes
LTC6994HDCB-1#PBF 2x3 DFN-6 H $2.63 Yes
LTC6994HDCB-1#TRMPBF 2x3 DFN-6 H $2.63 $1.94 Yes
LTC6994HDCB-1#TRPBF 2x3 DFN-6 H $2.63 $1.89 Yes
LTC6994HDCB-2#PBF 2x3 DFN-6 H $2.63 Yes
LTC6994HDCB-2#TRMPBF 2x3 DFN-6 H $2.63 $1.94 Yes
LTC6994HDCB-2#TRPBF 2x3 DFN-6 H $2.63 $1.89 Yes
LTC6994HS6-1#PBF SOT-23 H $2.63 Yes
LTC6994HS6-1#TRMPBF SOT-23 H $2.63 $1.94 Yes
LTC6994HS6-1#TRPBF SOT-23 H $2.63 $1.89 Yes
LTC6994HS6-2#PBF SOT-23 H $2.63 Yes
LTC6994HS6-2#TRMPBF SOT-23 H $2.63 $1.94 Yes
LTC6994HS6-2#TRPBF SOT-23 H $2.63 $1.89 Yes
LTC6994IDCB-1#PBF 2x3 DFN-6 I $2.16 Yes
LTC6994IDCB-1#TRMPBF 2x3 DFN-6 I $2.16 $1.60 Yes
LTC6994IDCB-1#TRPBF 2x3 DFN-6 I $2.16 $1.55 Yes
LTC6994IDCB-2#PBF 2x3 DFN-6 I $2.16 Yes
LTC6994IDCB-2#TRMPBF 2x3 DFN-6 I $2.16 $1.60 Yes
LTC6994IDCB-2#TRPBF 2x3 DFN-6 I $2.16 $1.55 Yes
LTC6994IS6-1#PBF SOT-23 I $2.16 Yes
LTC6994IS6-1#TRMPBF SOT-23 I $2.16 $1.60 Yes
LTC6994IS6-1#TRPBF SOT-23 I $2.16 $1.55 Yes
LTC6994IS6-2#PBF SOT-23 I $2.16 Yes
LTC6994IS6-2#TRMPBF SOT-23 I $2.16 $1.60 Yes
LTC6994IS6-2#TRPBF SOT-23 I $2.16 $1.55 Yes
LTC6994MPS6-1#PBF SOT-23 MP $5.64 Yes
LTC6994MPS6-1#TRMPBF SOT-23 MP $5.64 $4.10 Yes
LTC6994MPS6-1#TRPBF SOT-23 MP $5.64 $4.05 Yes
LTC6994MPS6-2#PBF SOT-23 MP $5.64 Yes
LTC6994MPS6-2#TRMPBF SOT-23 MP $5.64 $4.10 Yes
LTC6994MPS6-2#TRPBF SOT-23 MP $5.64 $4.05 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC1562B-K LTC6994-1: 100ms, Falling Edge, Delayed from Trigger Falling Edge $25.00
DC1562B-L LTC6994-2 Demo Board | 100ms, Output Rising Edge Delayed from Trigger Rising Edge $25.00
Buy Now
Click here to view our complete list of demo boards

Designed for Automotive and Transportation Applications

Please contact your local sales representative for more information regarding reliability reports and AEC-Q100 data or to inquire about parts that are not included. For more information, view our Automotive and Transportation page

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC6994HS6-1#PBF SOT-23 H $2.63 Yes
LTC6994HS6-1#TRMPBF SOT-23 H $2.63 $1.94 Yes
LTC6994HS6-1#TRPBF SOT-23 H $2.63 $1.89 Yes
LTC6994HS6-2#PBF SOT-23 H $2.63 Yes
LTC6994HS6-2#TRMPBF SOT-23 H $2.63 $1.94 Yes
LTC6994IS6-1#PBF SOT-23 I $2.16 Yes
LTC6994IS6-1#TRMPBF SOT-23 I $2.16 $1.60 Yes
LTC6994IS6-1#TRPBF SOT-23 I $2.16 $1.55 Yes
LTC6994IS6-2#PBF SOT-23 I $2.16 Yes
LTC6994IS6-2#TRMPBF SOT-23 I $2.16 $1.60 Yes
LTC6994IS6-2#TRPBF SOT-23 I $2.16 $1.55 Yes
LTC6994MPS6-1#PBF SOT-23 MP $5.64 Yes
LTC6994MPS6-1#TRMPBF SOT-23 MP $5.64 $4.10 Yes
LTC6994MPS6-1#TRPBF SOT-23 MP $5.64 $4.05 Yes
LTC6994MPS6-2#PBF SOT-23 MP $5.64 Yes
LTC6994MPS6-2#TRMPBF SOT-23 MP $5.64 $4.10 Yes
LTC6994MPS6-2#TRPBF SOT-23 MP $5.64 $4.05 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Applications

  • Noise Discriminators/Pulse Qualifiers
  • Delay Matching
  • Switch Debouncing
  • High Vibration, High Acceleration Environments
  • Portable and Battery-Powered Equipment

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

To launch a ready to run LTspice demonstration circuit for this part:

To explore other ready to run LTspice demonstration circuits, please visit our Demo Circuits Collection.

Models for the following parts are available in LTspice:
LTC6994-1
LTC6994-2

LTC6994 Online Design Tool

The LTC6994 Online Design Tool is a synthesis and configuration tool that allows you to:

  • Select the frequency and duty cycle of operation
  • Calculate the required external component values
  • Export to LTspice for simulation

Click here to start your design with the LTC6994 Online Design Tool

TimerBlox Designer (MS Excel)

Use this Excel based tool to speed your designs with the LTC6990, LTC6991, LTC6992, LTC6993, LTC6994 and LTC6995

Click here to download TimerBlox Designer

Technical Support