Products
LTC2956
RECOMMENDED FOR NEW DESIGNSWake-Up Timer with Pushbutton Control
- Part Models
- 16
- 1ku List Price
- Starting From $3.04
Viewing:
Overview
- 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
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
Documentation
Data Sheet 1
User Guide 1
Video 1
Product Selector Card 3
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 |
|---|---|---|---|
| LTC2956CMS-1#PBF | 12-Lead MSOP | ||
| LTC2956CMS-1#TRPBF | 12-Lead MSOP | ||
| LTC2956CMS-2#PBF | 12-Lead MSOP | ||
| LTC2956CMS-2#TRPBF | 12-Lead MSOP | ||
| LTC2956CUD-1#PBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956CUD-1#TRPBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956CUD-2#PBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956CUD-2#TRPBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956IMS-1#PBF | 12-Lead MSOP | ||
| LTC2956IMS-1#TRPBF | 12-Lead MSOP | ||
| LTC2956IMS-2#PBF | 12-Lead MSOP | ||
| LTC2956IMS-2#TRPBF | 12-Lead MSOP | ||
| LTC2956IUD-1#PBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956IUD-1#TRPBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956IUD-2#PBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) | ||
| LTC2956IUD-2#TRPBF | 12-Lead QFN (3mm x 3mm x 0.75mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0004 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 | PRODUCTION | |
| LTC2956IMS-1#TRPBF | PRODUCTION | |
| LTC2956IMS-2#PBF | PRODUCTION | |
| LTC2956IMS-2#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0129 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 | PRODUCTION | |
| LTC2956IMS-1#PBF | PRODUCTION | |
| LTC2956IMS-1#TRPBF | PRODUCTION | |
| LTC2956IMS-2#PBF | PRODUCTION | |
| LTC2956IMS-2#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC2956-1
- LTC2956-2
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.
