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
Designed for Automotive and Transportation Applications
AEC-Q100 generic family data available for specific packages


Typical Application

LTC2912 Typical Application
LTC2912 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


LTC2912 Package Drawing
LTC2912 Package Drawing
LTC2912 Package Drawing
LTC2912 Package Drawing
LTC2912 Package Drawing
LTC2912 Package Drawing

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

Part Number Package Temp Price
(1-99)
Price
(1k)*
RoHS
LTC2912CDDB-1#PBF 3x2 DFN-8 C $2.07 Yes
LTC2912CDDB-1#TRMPBF 3x2 DFN-8 C $2.07 $1.50 Yes
LTC2912CDDB-1#TRPBF 3x2 DFN-8 C $2.07 $1.45 Yes
LTC2912CDDB-2#PBF 3x2 DFN-8 C $2.07 Yes
LTC2912CDDB-2#TRMPBF 3x2 DFN-8 C $2.07 $1.50 Yes
LTC2912CDDB-2#TRPBF 3x2 DFN-8 C $2.07 $1.45 Yes
LTC2912CDDB-3#PBF 3x2 DFN-8 C $2.07 Yes
LTC2912CDDB-3#TRMPBF 3x2 DFN-8 C $2.07 $1.50 Yes
LTC2912CDDB-3#TRPBF 3x2 DFN-8 C $2.07 $1.45 Yes
LTC2912CTS8-1#PBF SOT-23 C $2.07 Yes
LTC2912CTS8-1#TRMPBF SOT-23 C $2.07 $1.50 Yes
LTC2912CTS8-1#TRPBF SOT-23 C $2.07 $1.45 Yes
LTC2912CTS8-2#PBF SOT-23 C $2.07 Yes
LTC2912CTS8-2#TRMPBF SOT-23 C $2.07 $1.50 Yes
LTC2912CTS8-2#TRPBF SOT-23 C $2.07 $1.45 Yes
LTC2912CTS8-3#PBF SOT-23 C $2.07 Yes
LTC2912CTS8-3#TRMPBF SOT-23 C $2.07 $1.50 Yes
LTC2912CTS8-3#TRPBF SOT-23 C $2.07 $1.45 Yes
LTC2912HDDB-1#PBF 3x2 DFN-8 H $3.04 Yes
LTC2912HDDB-1#TRMPBF 3x2 DFN-8 H $3.04 $2.02 Yes
LTC2912HDDB-1#TRPBF 3x2 DFN-8 H $3.04 $1.97 Yes
LTC2912HDDB-2#PBF 3x2 DFN-8 H $3.04 Yes
LTC2912HDDB-2#TRMPBF 3x2 DFN-8 H $3.04 $2.02 Yes
LTC2912HDDB-2#TRPBF 3x2 DFN-8 H $3.04 $1.97 Yes
LTC2912HDDB-3#PBF 3x2 DFN-8 H $3.04 Yes
LTC2912HDDB-3#TRMPBF 3x2 DFN-8 H $3.04 $2.02 Yes
LTC2912HDDB-3#TRPBF 3x2 DFN-8 H $3.04 $1.97 Yes
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
LTC2912IDDB-1#PBF 3x2 DFN-8 I $2.48 Yes
LTC2912IDDB-1#TRMPBF 3x2 DFN-8 I $2.48 $1.79 Yes
LTC2912IDDB-1#TRPBF 3x2 DFN-8 I $2.48 $1.74 Yes
LTC2912IDDB-2#PBF 3x2 DFN-8 I $2.48 Yes
LTC2912IDDB-2#TRMPBF 3x2 DFN-8 I $2.48 $1.79 Yes
LTC2912IDDB-2#TRPBF 3x2 DFN-8 I $2.48 $1.74 Yes
LTC2912IDDB-3#PBF 3x2 DFN-8 I $2.48 Yes
LTC2912IDDB-3#TRMPBF 3x2 DFN-8 I $2.48 $1.79 Yes
LTC2912IDDB-3#TRPBF 3x2 DFN-8 I $2.48 $1.74 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 NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology 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

Please contact your local sales representative for more information regarding reliability reports and AEC-Q100 data 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
LTC2912HTS8-2#PBF SOT-23 H $3.04 Yes
LTC2912HTS8-3#PBF SOT-23 H $3.04 Yes
LTC2912ITS8-1#PBF SOT-23 I $2.48 Yes
LTC2912ITS8-2#PBF SOT-23 I $2.48 Yes
LTC2912ITS8-3#PBF SOT-23 I $2.48 Yes
Buy NowRequest Samples
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

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