LTC2912 - Single UV/OV Voltage Monitor
Features
- Monitors Single Voltage
- Adjustable UV and OV Trip Values
- Guaranteed Threshold Accuracy: ±1.5%
- Power Supply Glitch Immunity
- Adjustable Reset Timeout with Timeout Disable
- 29μA Quiescent Current
- Open-Drain OV and UV Outputs
- Guaranteed OV and UV for VCC ≥ 1V
- Available in 8-Lead ThinSOTTM and (3mm × 2mm) DFN Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC®2912 voltage monitor is designed to detect power supply undervoltage and overvoltage events. The VL and VH monitor inputs include filtering to reject brief glitches, thereby ensuring reliable reset operation without false or noisy triggering. An adjustable timer defines the duration of the overvoltage and undervoltage reset outputs which function independently. While the LTC2912 operates directly from 2.3V to 6V supplies, an internal VCC shunt regulator coupled with low supply current demand allows operation from higher voltages such as 12V, 24V or 48V.
Three output configurations are available: the LTC2912‑1 has a latch control for the OV output; the LTC2912-2 has an OV and UV output disable feature for margining applications; the LTC2912-3 is identical to the LTC2912-1 but with a noninverting, OV output.
The LTC2912 provides a precise, versatile, space-conscious micropower solution for voltage monitoring.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC2912CDDB-1#PBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-1#TRMPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-1#TRPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-2#PBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-2#TRMPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-2#TRPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-3#PBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-3#TRMPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CDDB-3#TRPBF | 3x2 DFN-8 | DDB | C | 05-08-1702 | Yes |
| LTC2912CTS8-1#PBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-1#TRMPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-1#TRPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-2#PBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-2#TRMPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-2#TRPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-3#PBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-3#TRMPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912CTS8-3#TRPBF | SOT-23 | TS8 | C | 05-08-1637 | Yes |
| LTC2912HDDB-1#PBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-1#TRMPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-1#TRPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-2#PBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-2#TRMPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-2#TRPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-3#PBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-3#TRMPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HDDB-3#TRPBF | 3x2 DFN-8 | DDB | H | 05-08-1702 | Yes |
| LTC2912HTS8-1#PBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-1#TRMPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-1#TRPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-2#PBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-2#TRMPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-2#TRPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-3#PBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-3#TRMPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912HTS8-3#TRPBF | SOT-23 | TS8 | H | 05-08-1637 | Yes |
| LTC2912IDDB-1#PBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-1#TRMPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-1#TRPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-2#PBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-2#TRMPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-2#TRPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-3#PBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-3#TRMPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912IDDB-3#TRPBF | 3x2 DFN-8 | DDB | I | 05-08-1702 | Yes |
| LTC2912ITS8-1#PBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-1#TRMPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-1#TRPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-2#PBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-2#TRMPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-2#TRPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-3#PBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-3#TRMPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
| LTC2912ITS8-3#TRPBF | SOT-23 | TS8 | I | 05-08-1637 | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
sales office or authorized distributor.Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2912HTS8-1#PBF | SOT-23 | H | $3.04 | Yes | ||
| LTC2912HTS8-1#TRMPBF | SOT-23 | H | $3.04 | $2.02 | Yes | |
| LTC2912HTS8-1#TRPBF | SOT-23 | H | $3.04 | $1.97 | Yes | |
| LTC2912HTS8-2#PBF | SOT-23 | H | $3.04 | Yes | ||
| LTC2912HTS8-2#TRMPBF | SOT-23 | H | $3.04 | $2.02 | Yes | |
| LTC2912HTS8-2#TRPBF | SOT-23 | H | $3.04 | $1.97 | Yes | |
| LTC2912HTS8-3#PBF | SOT-23 | H | $3.04 | Yes | ||
| LTC2912HTS8-3#TRMPBF | SOT-23 | H | $3.04 | $2.02 | Yes | |
| LTC2912HTS8-3#TRPBF | SOT-23 | H | $3.04 | $1.97 | Yes | |
| LTC2912ITS8-1#PBF | SOT-23 | I | $2.48 | Yes | ||
| LTC2912ITS8-1#TRMPBF | SOT-23 | I | $2.48 | $1.79 | Yes | |
| LTC2912ITS8-1#TRPBF | SOT-23 | I | $2.48 | $1.74 | Yes | |
| LTC2912ITS8-2#PBF | SOT-23 | I | $2.48 | Yes | ||
| LTC2912ITS8-2#TRMPBF | SOT-23 | I | $2.48 | $1.79 | Yes | |
| LTC2912ITS8-2#TRPBF | SOT-23 | I | $2.48 | $1.74 | Yes | |
| LTC2912ITS8-3#PBF | SOT-23 | I | $2.48 | Yes | ||
| LTC2912ITS8-3#TRMPBF | SOT-23 | I | $2.48 | $1.79 | Yes | |
| LTC2912ITS8-3#TRPBF | SOT-23 | I | $2.48 | $1.74 | Yes | |
| Buy Now • Request Samples | ||||||
Applications
- Desktop and Notebook Computers
- Network Servers
- Core, I/O Voltage Monitors
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Design Tools
LTspice
LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice
Models for the following parts are available in LTspice:
LTC2912-1
LTC2912-2
LTC2912-3
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
