LTC2956
Info : RECOMMENDED FOR NEW DESIGNS
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LTC2956

Wake-Up Timer with Pushbutton Control

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 16
1ku List Price Starting From $2.40
Features
  • 1.5V to 36V Supply Input Range
  • Adjustable Wake-Up Period: 250ms to 39 Days
  • Adjustable Maximum Awake Time
  • 0.8μA Quiescent Current
  • 0.3μA Shutdown Current
  • Pushbutton Input with Debouncing
  • Low Leakage EN Output Allows DC/DC Converter Control (LTC2956-1)
  • High Voltage EN Output Drives External P-Channel MOSFET (LTC2956-2)
  • ±25kV ESD HBM on PB Input
  • 12-Lead 3mm × 3mm QFN and MSOP Packages
Additional Details
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The LTC2956 is a micropower, wide input voltage range, configurable wake-up timer with pushbutton control. It periodically wakes up and turns on a connected system to perform tasks like monitoring temperature or capturing images. After completing the task, the LTC2956 turns the system off to conserve power.

The wake-up timer period can be adjusted from 250ms to 39 days using configuration resistors. The system awake time can be controlled by the input pulse at the SLEEP pin or adjusted by the capacitor at the ONMAX pin. The LTC2956 operates over a wide supply input range from 1.5V to 36V. The low 800nA quiescent current suits battery powered applications.

The pushbutton input allows the user to shutdown, turn on or reset the wake-up timer. With the timer in shutdown, the quiescent current drops to 300nA. The LTC2956 also provides three status outputs to indicate mode transitions and pushbutton events. Two versions are available for applications requiring either positive or negative enable polarities.

Applications

  • Heartbeat Timers
  • Periodic Wake-Up Control
  • Portable and Battery-Powered Equipment
  • Intervalometers
  • Data Acquisition
Part Models 16
1ku List Price Starting From $2.40

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Documentation

Documentation

Video

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC2956CMS-1#PBF
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LTC2956CMS-1#TRPBF
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LTC2956CMS-2#PBF
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LTC2956CMS-2#TRPBF
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LTC2956CUD-1#PBF
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LTC2956CUD-1#TRPBF
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LTC2956CUD-2#PBF
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LTC2956CUD-2#TRPBF
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LTC2956IMS-1#PBF
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LTC2956IMS-1#TRPBF
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LTC2956IMS-2#PBF
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LTC2956IMS-2#TRPBF
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LTC2956IUD-1#PBF
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LTC2956IUD-1#TRPBF
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LTC2956IUD-2#PBF
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LTC2956IUD-2#TRPBF
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Product Lifecycle

PCN

Jun 5, 2024

- 24_0004

Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC2956CMS-1#PBF

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LTC2956CMS-1#TRPBF

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LTC2956CMS-2#PBF

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LTC2956CMS-2#TRPBF

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LTC2956IMS-1#PBF

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LTC2956IMS-2#PBF

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LTC2956IMS-2#TRPBF

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Feb 4, 2020

- 20_0129

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC2956CMS-1#PBF

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LTC2956CMS-1#TRPBF

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LTC2956CMS-2#PBF

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LTC2956CMS-2#TRPBF

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LTC2956IMS-1#PBF

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LTC2956IMS-1#TRPBF

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LTC2956IMS-2#TRPBF

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Filter by Model

reset

Reset Filters

Part Models

Product Lifecycle

PCN

Jun 5, 2024

- 24_0004

arrow down

Epoxy Change from Henkel 8290 to 8290A for MSOP (3)

LTC2956CMS-1#PBF

PRODUCTION

LTC2956CMS-1#TRPBF

PRODUCTION

LTC2956CMS-2#PBF

PRODUCTION

LTC2956CMS-2#TRPBF

PRODUCTION

LTC2956IMS-1#PBF

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LTC2956IMS-1#TRPBF

PRODUCTION

LTC2956IMS-2#PBF

PRODUCTION

LTC2956IMS-2#TRPBF

PRODUCTION

Feb 4, 2020

- 20_0129

arrow down

Laser Mark Conversion for 12-Lead MSOP Packages Assembled in ADPG and UTAC

LTC2956CMS-1#PBF

PRODUCTION

LTC2956CMS-1#TRPBF

PRODUCTION

LTC2956CMS-2#PBF

PRODUCTION

LTC2956CMS-2#TRPBF

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LTC2956IMS-1#PBF

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LTC2956IMS-1#TRPBF

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LTC2956IMS-2#PBF

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LTC2956IMS-2#TRPBF

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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 2

reference details image

DC2254A-A

LTC2956-1 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

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DC2254A-A

LTC2956-1 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

LTC2956-1 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

Product Detail

Demonstration circuits 2254A-A and 2254A-B feature the LTC2956-1 and LTC2956-2, respectively. The LTC2956 is a micropower, wide input voltage range, configurable wake-up timer with pushbutton control. It periodically wakes up and turns on a connected system to perform tasks like monitoring temperature or capturing images. After completing the task, the LTC2956 turns the system off to conserve power. The wake-up timer period can be adjusted from 250ms to 39 days.

reference details image

DC2254A-B

LTC2956-2 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

zoom

DC2254A-B

LTC2956-2 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

LTC2956-2 Demo Board | Wake-Up Timer with Pushbutton Control, EN Pin

Product Detail

Demonstration circuits 2254A-A and 2254A-B feature the LTC2956-1 and LTC2956-2, respectively. The LTC2956 is a micropower, wide input voltage range, configurable wake-up timer with pushbutton control. It periodically wakes up and turns on a connected system to perform tasks like monitoring temperature or capturing images. After completing the task, the LTC2956 turns the system off to conserve power. The wake-up timer period can be adjusted from 250ms to 39 days.

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.

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