LTC2950
RECOMMENDED FOR NEW DESIGNSPush Button On/Off Controller
- Part Models
- 16
- 1ku List Price
- Starting From $2.78
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Design Note 2
Technical Articles 4
Product Selector Card 1
Press Release 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2950CDDB-1#TRMPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950CDDB-1#TRPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950CDDB-2#TRMPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950CDDB-2#TRPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950CTS8-1#TRMPBF | 8-Lead SOT-23 | ||
| LTC2950CTS8-1#TRPBF | 8-Lead SOT-23 | ||
| LTC2950CTS8-2#TRMPBF | 8-Lead SOT-23 | ||
| LTC2950CTS8-2#TRPBF | 8-Lead SOT-23 | ||
| LTC2950IDDB-1#TRMPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950IDDB-1#TRPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950IDDB-2#TRMPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950IDDB-2#TRPBF | 8-Lead DFN (3mm x 2mm w/ EP) | ||
| LTC2950ITS8-1#TRMPBF | 8-Lead SOT-23 | ||
| LTC2950ITS8-1#TRPBF | 8-Lead SOT-23 | ||
| LTC2950ITS8-2#TRMPBF | 8-Lead SOT-23 | ||
| LTC2950ITS8-2#TRPBF | 8-Lead SOT-23 |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Circuit Monitors 1 | ||
| LTC2960 | RECOMMENDED FOR NEW DESIGNS | 36V Nano-Current Two-Input Voltage Monitor |
| Oscillators 1 | ||
| LTC6991 | PRODUCTION | TimerBlox: Resettable, Low Frequency Oscillator |
| Temperature Sensors 1 | ||
| LTC2991 | RECOMMENDED FOR NEW DESIGNS | Octal I2C Voltage, Current, and Temperature Monitor |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC2950-1
- LTC2950-2
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.
Evaluation Kits
LTC2950-2/LTC2951-2 Pushbutton On/Off Controller 2.7V ≤ VIN ≤ 26.4V