LTC2935
LTC2935
PRODUCTIONUltra-Low Power Supervisor with Power-Fail Output, Selectable Thresholds
- Part Models
- 32
- 1ku List Price
- Starting From $1.91
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Overview
- 500nA Quiescent Current
- ±1.5% (Max) Accuracy over Temperature
- Integrated Precision Attenuators
- Eight Pin-Selectable Reset Thresholds
- Eight Pin-Selectable Power-Fail Thresholds
- Early Warning Power-Fail Output
- 200ms Reset Timeout
- Manual Reset Input
- Compact 8-Lead, 2mm × 2mm DFN and TSOT-23 (ThinSOT™) Packages
The LTC2935 ultra-low power voltage monitor provides system initialization, power-fail warning and reset generation functions. Low quiescent current (500nA typical) makes the LTC2935 an ideal choice for battery-operated applications.
Three binary threshold-select inputs configure one of eight integrated reset thresholds, ranging from 1.6V to 3.45V in pre-determined increments. Early warning of an impending low voltage condition is provided at the powerfail output (PFO), whose threshold is above the configured reset threshold. Supervisory circuits monitor VCC and pull RST low when VCC drops below the configured reset threshold. When VCC is rising from an under-threshold condition, an internal reset timer is started after exceeding the reset threshold by 5%. A 200ms reset timeout delays the return of the RST output to a high state. A pushbutton switch connected to the MR input is typically used to force a manual reset. Outputs RST and PFO are available with open-drain (LTC2935-1/LTC2935-3) or active pull-up (LTC2935-2/LTC2935-4) circuits. Operating temperature range is from –40°C to 85°C.
Applications
- Portable Equipment
- Battery-Powered Equipment
- Security Systems
- Point-of-Sale Devices
- Wireless Systems
Documentation
Data Sheet 1
User Guide 3
Technical Articles 1
Product Selector Card 2
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 |
|---|---|---|---|
| LTC2935CDC-1#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-1#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-2#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-2#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-3#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-3#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-4#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CDC-4#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935CTS8-1#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-1#TRPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-2#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-2#TRPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-3#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-3#TRPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-4#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935CTS8-4#TRPBF | 8-Lead SOT-23 | ||
| LTC2935IDC-1#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-1#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-2#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-2#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-3#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-3#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-4#TRMPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935IDC-4#TRPBF | 8-Lead DFN (2mm x 2mm w/ EP) | ||
| LTC2935ITS8-1#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-1#TRPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-2#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-2#TRPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-3#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-3#TRPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-4#TRMPBF | 8-Lead SOT-23 | ||
| LTC2935ITS8-4#TRPBF | 8-Lead SOT-23 |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Feb 14, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC2935CDC-1#TRMPBF | PRODUCTION | |
| LTC2935CDC-1#TRPBF | PRODUCTION | |
| LTC2935CDC-2#TRMPBF | PRODUCTION | |
| LTC2935CDC-2#TRPBF | PRODUCTION | |
| LTC2935CDC-3#TRMPBF | PRODUCTION | |
| LTC2935CDC-3#TRPBF | PRODUCTION | |
| LTC2935CDC-4#TRMPBF | PRODUCTION | |
| LTC2935CDC-4#TRPBF | PRODUCTION | |
| LTC2935IDC-2#TRMPBF | PRODUCTION | |
| LTC2935IDC-2#TRPBF | PRODUCTION | |
| LTC2935IDC-4#TRMPBF | PRODUCTION | |
| LTC2935IDC-4#TRPBF | PRODUCTION | |
|
Apr 9, 2025 - 25_0016 Bond Wire Change from Gold to Copper Wire (Notification Only) |
||
| LTC2935IDC-1#TRMPBF | PRODUCTION | |
| LTC2935IDC-1#TRPBF | PRODUCTION | |
| LTC2935IDC-3#TRMPBF | PRODUCTION | |
| LTC2935IDC-3#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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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 |
| Overvoltage & Overcurrent Protectors 1 | ||
| LTC4365 | RECOMMENDED FOR NEW DESIGNS | Overvoltage, Undervoltage and Reverse Supply Protection Controller |
| Supervisory Circuits & Reset ICs 1 | ||
| LTC2934 | PRODUCTION | Ultra-Low Power Adjustable Supervisor with Power-Fail Output |
Tools & Simulations
LTspice
Models for the following parts are available in LTspice:
- LTC2935-1
- LTC2935-2
- LTC2935-3
- LTC2935-4
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.
