LTC2950
Info : RECOMMENDED FOR NEW DESIGNS
searchIcon
cartIcon

LTC2950

Push Button On/Off Controller

Show More showmore-icon

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $2.19
Features
  • Adjustable Pushbutton On/Off Timers
  • Low Supply Current: 6μA
  • Wide Operating Voltage Range: 2.7V to 26.4V
  • EN Output (LTC2950-1) Allows DC/DC Converter Control
  • EN Output (LTC2950-2) Allows Circuit Breaker Control
  • Simple Interface Allows Graceful μP Shut Down
  • High Input Voltage PB Pin with Internal Pull Up Resistor
  • ±10kV ESD HBM on PB Input
  • Accurate 0.6V Threshold on KILL Comparator Input
  • 8-Pin 3mm × 2mm DFN and ThinSOT Packages
Additional Details
show more Icon

The LTC2950 is a micropower, wide input voltage range, pushbutton ON/OFF controller. The part contains a pushbutton input with independently programmable ON and OFF debounce times that control the toggling of an open drain enable output. The part also contains a simple microprocessor interface to allow for proper system housekeeping prior to power down. Under system fault conditions, an internal KILL timer ensures proper power down.

The LTC2950 operates over a wide 2.7V to 26.4V input voltage range to accommodate a wide variety of input power supplies. Very low quiescent current (6μA typical) makes the LTC2950 ideally suited for battery powered applications. Two versions of the part are available to accommodate either positive or negative enable polarities. The parts are available in either 8-lead 3mm × 2mm DFN or ThinSOT packages.

Applications

  • Portable Instrumentation Meters
  • Blade Servers
  • Portable Customer Service PDA
  • Desktop and Notebook Computers
Part Models 16
1ku List Price Starting From $2.19

close icon
Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2950CDDB-1#TRMPBF
  • HTML
  • HTML
LTC2950CDDB-1#TRPBF
  • HTML
  • HTML
LTC2950CDDB-2#TRMPBF
  • HTML
  • HTML
LTC2950CDDB-2#TRPBF
  • HTML
  • HTML
LTC2950CTS8-1#TRMPBF
  • HTML
  • HTML
LTC2950CTS8-1#TRPBF
  • HTML
  • HTML
LTC2950CTS8-2#TRMPBF
  • HTML
  • HTML
LTC2950CTS8-2#TRPBF
  • HTML
  • HTML
LTC2950IDDB-1#TRMPBF
  • HTML
  • HTML
LTC2950IDDB-1#TRPBF
  • HTML
  • HTML
LTC2950IDDB-2#TRMPBF
  • HTML
  • HTML
LTC2950IDDB-2#TRPBF
  • HTML
  • HTML
LTC2950ITS8-1#TRMPBF
  • HTML
  • HTML
LTC2950ITS8-1#TRPBF
  • HTML
  • HTML
LTC2950ITS8-2#TRMPBF
  • HTML
  • HTML
LTC2950ITS8-2#TRPBF
  • HTML
  • HTML
Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

reference details image

DC826C

LTC2950-2/LTC2951-2 Pushbutton On/Off Controller 2.7V ≤ VIN ≤ 26.4V

zoom

DC826C

LTC2950-2/LTC2951-2 Pushbutton On/Off Controller 2.7V ≤ VIN ≤ 26.4V

LTC2950-2/LTC2951-2 Pushbutton On/Off Controller 2.7V ≤ VIN ≤ 26.4V

Product Detail

Demonstration Circuits 826C-A and 826C-B feature the LTC2950-2 and the LTC2951-2 respectively, which are low power, wide input voltage range, Push Button On/Off Controllers. A push button switch shorts the /PB pin to ground which in turn sets the /EN pin low. Shorting /PB to ground a second time subsequently resets the /EN pin high. The /EN pin is used to connect to a DC/DC converter shutdown to control the turn on and off of the circuit, simulated with a green LED on the DC826C-A/DC826C-B.


 


Tools & Simulations

Tools & Simulations 1

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Recently Viewed