LTC2901
LTC2901
PRODUCTIONProgrammable Quad Supply Monitor with Adjustable Reset and Watchdog Timers
- Part Models
- 16
- 1ku List Price
- Starting From $3.95
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Overview
- Simultaneously Monitors Four Supplies
- 16 User Selectable Combinations of 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V and/or ±Adj Voltage Thresholds
- Guaranteed Threshold Accuracy: ±1.5% of Monitored Voltage Over Temperature
- Selectable Supply Tolerance: 5% and 10% Below Monitored Voltage (LTC2901-3/LTC2901-4)
- Low Supply Current: 43µA Typ
- Adjustable Reset Time
- Adjustable Watchdog Time
- Open-Drain RST Output (LTC2901-1/LTC2901-3)
- Push-Pull RST Output (LTC2901-2/LTC2901-4)
- Individual Nondelayed Monitor Output for Each Supply
- Power Supply Glitch Immunity
- Guaranteed RST for VCC ≥ 1V
- 16-Lead Narrow SSOP Package
The LTC2901 is a programmable supply monitor for systems with up to four supply voltages. One of 16 preset or adjustable voltage monitor combinations can be selected using an external resistor divider connected to the program pin. The preset voltage thresholds are accurate to ±1.5% over temperature. All four voltage comparator outputs are connected to separate pins for individual supply monitoring.
The reset and watchdog delay times are adjustable using external capacitors. Tight voltage threshold accuracy and glitch immunity ensure reliable reset operation without false triggering. The RST output is guaranteed to be in the correct state for VCC down to 1V. The LTC2901-1/LTC2901-3 features an open-drain RST output, while the LTC2901-2/LTC2901-4 has a push-pull RST output.
The 43µA supply current makes the LTC2901 ideal for power conscious systems and it may be configured to monitor less than four inputs. The parts are available in the 16-lead narrow SSOP package.
Applications
- Desktop and Notebook Computers
- Multivoltage Systems
- Telecom Equipment
- Portable Battery-Powered Equipment
- Network Servers
Documentation
Data Sheet 1
Technical Articles 1
Product Selector Card 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 |
|---|---|---|---|
| LTC2901-1CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-1CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-1IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-1IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-2CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-2CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-2IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-2IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-3CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-3CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-3IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-3IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-4CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-4CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-4IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC2901-4IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC2901-1CGN#PBF | PRODUCTION | |
| LTC2901-1CGN#TRPBF | PRODUCTION | |
| LTC2901-1IGN#PBF | PRODUCTION | |
| LTC2901-1IGN#TRPBF | PRODUCTION | |
| LTC2901-2CGN#PBF | PRODUCTION | |
| LTC2901-2CGN#TRPBF | PRODUCTION | |
| LTC2901-2IGN#PBF | PRODUCTION | |
| LTC2901-2IGN#TRPBF | PRODUCTION | |
| LTC2901-3CGN#PBF | PRODUCTION | |
| LTC2901-3CGN#TRPBF | PRODUCTION | |
| LTC2901-3IGN#PBF | PRODUCTION | |
| LTC2901-3IGN#TRPBF | PRODUCTION | |
| LTC2901-4CGN#PBF | PRODUCTION | |
| LTC2901-4CGN#TRPBF | PRODUCTION | |
| LTC2901-4IGN#PBF | PRODUCTION | |
| LTC2901-4IGN#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC2901-1CGN#PBF | PRODUCTION | |
| LTC2901-1CGN#TRPBF | PRODUCTION | |
| LTC2901-1IGN#PBF | PRODUCTION | |
| LTC2901-1IGN#TRPBF | PRODUCTION | |
| LTC2901-2CGN#PBF | PRODUCTION | |
| LTC2901-2CGN#TRPBF | PRODUCTION | |
| LTC2901-2IGN#PBF | PRODUCTION | |
| LTC2901-2IGN#TRPBF | PRODUCTION | |
| LTC2901-3CGN#PBF | PRODUCTION | |
| LTC2901-3CGN#TRPBF | PRODUCTION | |
| LTC2901-3IGN#PBF | PRODUCTION | |
| LTC2901-3IGN#TRPBF | PRODUCTION | |
| LTC2901-4CGN#PBF | PRODUCTION | |
| LTC2901-4CGN#TRPBF | PRODUCTION | |
| LTC2901-4IGN#PBF | PRODUCTION | |
| LTC2901-4IGN#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC2901-1CGN#PBF | PRODUCTION | |
| LTC2901-1CGN#TRPBF | PRODUCTION | |
| LTC2901-1IGN#PBF | PRODUCTION | |
| LTC2901-1IGN#TRPBF | PRODUCTION | |
| LTC2901-2CGN#PBF | PRODUCTION | |
| LTC2901-2CGN#TRPBF | PRODUCTION | |
| LTC2901-2IGN#PBF | PRODUCTION | |
| LTC2901-2IGN#TRPBF | PRODUCTION | |
| LTC2901-3CGN#PBF | PRODUCTION | |
| LTC2901-3CGN#TRPBF | PRODUCTION | |
| LTC2901-3IGN#PBF | PRODUCTION | |
| LTC2901-3IGN#TRPBF | PRODUCTION | |
| LTC2901-4CGN#PBF | PRODUCTION | |
| LTC2901-4CGN#TRPBF | PRODUCTION | |
| LTC2901-4IGN#PBF | PRODUCTION | |
| LTC2901-4IGN#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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