LTC6993-1/LTC6993-2 LTC6993-3/LTC6993-4 TimerBlox: Monostable Pulse Generator (One Shot) FEATURESDESCRIPTION n Pulse Width Range: 1µs to 33.6 Seconds The LTC®6993 is a monostable multivibrator (also known n Configured with 1 to 3 Resistors as a “one-shot” pulse generator) with a programmable n Pulse Width Max Error: pulse width of 1µs to 33.6 seconds. The LTC6993 is part n <2.3% for Pulse Width > 512µs of the TimerBlox® family of versatile silicon timing devices. n <3.4% for Pulse Width of 8µs to 512µs A single resistor, RSET, programs an internal master os- n <4.9% for Pulse Width of 1µs to 8µs cillator frequency, setting the LTC6993’s time base. The n Four LTC6993 Options Available: output pulse width is determined by this master oscillator n Rising-Edge or Falling-Edge Trigger and an internal clock divider, NDIV , programmable to eight n Retriggerable or Non-Retriggerable settings from 1 to 221. n Configurable for Positive or Negative Output Pulse n Fast Recovery Time NDIV • RSET n 2.25V to 5.5V Single Supply Operation tOUT = • 1µs, NDIV = 1, 8, 64,...,221 50kΩ n 70µA Supply Current at 10µs Pulse Width The output pulse is initiated by a transition on the trigger n 500µs Start-Up Time input (TRIG). Each part can be configured to generate posi- n CMOS Output Driver Sources/Sinks 20mA tive or negative output pulses. The LTC6993 is available n –55°C to 125°C Operating Temperature Range in four versions to provide different trigger signal polarity n Available in Low Profile (1mm) SOT-23 (ThinSOT™) and retrigger capability. and 2mm × 3mm DFN n DEVICEINPUT POLARITYRETRIGGER AEC-Q100 Qualified for Automotive Applications LTC6993-1 Rising-Edge No LTC6993-2 Rising-Edge Yes APPLICATIONS LTC6993-3 Falling-Edge No n LTC6993-4 Falling-Edge Yes Watchdog Timer n Frequency Discriminators The LTC6993 also offers the ability to dynamically adjust n Missing Pulse Detection the width of the output pulse via a separate control voltage. n Envelope Detection For easy configuration of the LTC6993, use the TimerBlox n High Vibration, High Acceleration Environments LTC6993: One Shot Web-Based Design Tool. n Portable and Battery-Powered Equipment All registered trademarks and trademarks are the property of their respective owners. TYPICAL APPLICATIONEnvelope Detector 80kHz CARRIER MODULATED SIGNAL TRIG TRIG OUT CARRIER ENVELOPE 2V/DIV LTC6993-2 3.3V GND V+ 16µs 0.1µF OUT SET DIV 2V/DIV RSET 69931234 TA01a 800k 50µs/DIV 69931234 TA01b Rev. E Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
