LTC2912
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LTC2912

Single UV/OV Voltage Monitor

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LTspice LTC2912 - Supervisory Circuits Download 1.68 KB
Part Models 36
1ku List Price Starting From $1.77
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 ThinSOT™ and (3mm × 2mm) DFN Packages
Additional Details
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The LTC2912 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.

Applications

  • Desktop and Notebook Computers
  • Network Servers
  • Core, I/O Voltage Monitors
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file View Data Sheet (Rev.C)
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LTspice LTC2912 - Supervisory Circuits Download 1.68 KB
Part Models 36
1ku List Price Starting From $1.77
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LTC2912

Documentation

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Data Sheet

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UPDATED 06/19/2014
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LTC2912: Single UV/OV Voltage Monitor Data Sheet (Rev.C)

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UPDATED 09/11/2014
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LTC2912: シングルUV/OV電圧モニタ データシート

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Design Note

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UPDATED 08/22/2007
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DN408 - Versatile Voltage Monitors Simplify Detection of Overvoltage and Undervoltage Faults redirect icon

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UPDATED 04/10/2007
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DN408 - 汎用性の高い電圧モニタによる過電圧と低電圧のフォールト検出の簡素化 redirect icon

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Reliability Data

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UPDATED 03/26/2018
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R413 Reliability Data redirect icon

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UPDATED 03/13/2015
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LTC4226 Parallel MOSFETs in Hot Swap Circuits redirect icon

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UPDATED 03/13/2015
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LTC4226 Hot Swap回路の並列MOSFET redirect icon

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Documentation

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
LTC2912CDDB-1#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CDDB-1#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CDDB-2#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CDDB-2#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CDDB-3#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CDDB-3#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912CTS8-1#TRMPBF 8-Lead SOT-23 external-link
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LTC2912CTS8-1#TRPBF 8-Lead SOT-23 external-link
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LTC2912CTS8-2#TRMPBF 8-Lead SOT-23 external-link
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LTC2912CTS8-2#TRPBF 8-Lead SOT-23 external-link
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LTC2912CTS8-3#TRMPBF 8-Lead SOT-23 external-link
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LTC2912CTS8-3#TRPBF 8-Lead SOT-23 external-link
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LTC2912HDDB-1#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HDDB-1#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HDDB-2#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HDDB-2#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HDDB-3#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HDDB-3#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912HTS8-1#TRMPBF 8-Lead SOT-23 external-link
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LTC2912HTS8-1#TRPBF 8-Lead SOT-23 external-link
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LTC2912HTS8-2#TRMPBF 8-Lead SOT-23 external-link
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LTC2912HTS8-3#TRMPBF 8-Lead SOT-23 external-link
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LTC2912HTS8-3#TRPBF 8-Lead SOT-23 external-link
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LTC2912IDDB-1#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912IDDB-1#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912IDDB-2#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912IDDB-2#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912IDDB-3#TRMPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912IDDB-3#TRPBF 8-Lead DFN (3mm x 2mm w/ EP) external-link
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LTC2912ITS8-1#TRMPBF 8-Lead SOT-23 external-link
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LTC2912ITS8-1#TRPBF 8-Lead SOT-23 external-link
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LTC2912ITS8-2#TRMPBF 8-Lead SOT-23 external-link
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LTC2912ITS8-2#TRPBF 8-Lead SOT-23 external-link
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LTC2912ITS8-3#TRMPBF 8-Lead SOT-23 external-link
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LTC2912ITS8-3#TRPBF 8-Lead SOT-23 external-link
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Software & Part Ecosystem

Evaluation Kits 1

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ADALM-SR1

Switching Regulator Active Learning Module

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ADALM-SR1

Switching Regulator Active Learning Module

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ADALM-SR1
Switching Regulator Active Learning Module

Features and Benefits

  • Companion module for Active Learning labs on buck and boost power converters
  • Illustrates important concepts related to buck and boost converters:
    • Continuous vs. Discontinuous Conduction Modes
    • Open loop operation
    • Voltage mode control
    • Current mode control
  • Independently adjustable parameters: frequency, duty cycle, voltage/current mode
  • Onboard current sense amplifiers and adjustable load minimize equipment requirements.
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Product Detail

The ADALM-SR1 (Analog Devices Active Learning Module, Switching Regulator) board is a companion module for several switching regulator exercises covering buck and boost regulators:

  • Boost and Buck converter elements and open-loop operation
  • Buck Converters: closed loop operation
  • Boost Converters: closed loop operation

The circuits required for these exercises exceed the complexity that can be constructed on a breadboard, so the ADALM-SR1 was designed as a flexible platform for experimenting with power electronics. Onboard current sense amplifiers, adjustable electronic load, and feedback signal injection circuitry eliminate the need for expensive equipment — the only additional equipment required is:

  • 5V USB wall adapter
  • Basic adjustable power supply for input power (0-12V, 2A)
  • Multimeter
  • ADALM2000 or basic oscilloscope (2 channels with trigger, >10MHz bandwidth)

Resources

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ADALM-SR1 User Guide reference design link

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ADALM-SR1 Design & Integration Files Download

1.64 M

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Evaluation Kits1

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ADALM-SR1

Switching Regulator Active Learning Module

Tools & Simulations 1

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.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

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LTC2912 - Supervisory Circuits Download

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