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Solutions Search - Monitor, Control and Protection

Fast 150V Protected High Side Driver

Mark Mullen - Sr Design Engineer, Power Products Jun 9th 2017
The LTC7000 is a fast, protected, high side N-channel MOSFET gate driver that contains an internal charge pump allowing the external N-channel MOSFET to stay on indefinitely. The LTC7000 receives a low voltage digital input signal and can fully turn-on or turn-off a high-side N-channel MOSFET whose drain can be 135V above ...

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Dual Input Prioritizers with Built-In Battery Monitoring

Rajesh Venugopal - Sr Design Engr Dec 8th 2016
Selecting the appropriate input supply to power a system with multiple input power sources is not a trivial task. This video discusses challenges associated with the supply selection process, also known as prioritization. The LTC4419 and its features are introduced to show case how the product solves key prioritization challenges ...

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LTC2947 ±30A Power/Energy Monitor with Integrated RSENSE - Video Product Brief

Chris Gobok - Product Marketing Engineer Sep 8th 2016
The LTC2947 is a high-precision power and energy monitor with an internal sense resistor supporting up to ±30A. Three internal No Latency Δ∑™ ADCs ensure accurate measurement of voltage and current, while highbandwidth analog multiplication of voltage and current provides accurate power measurement ...

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Prioritized PowerPath Controllers; LTC4417/4419/4420 - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal Sep 1st 2016
PowerPath™ prioritizers are low operating current circuits that provide backup switchover power for keeping critical circuitry alive during brown out and power loss conditions based on a user-defined priority. Priority is defined by pin assignment, with V1 assigned the highest priority and V3 the lowest priority. ...

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30A Power and Energy Monitor with Integrated Sense Resistor

Aug 29th 2016
With more and more importance attributed to reduce energy consumption, power monitoring at various points of a system becomes mandatory. Precise power monitoring requires to measure the voltage drop over a current sense resistor as alternative concepts such as hall sensors or flux gate suffer from imperfections due to offset ...

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LTC4282 Dual Path, High Current (100A) Hot Swap Controller with I2C Interface - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal Aug 25th 2016
The LTC4282 Hot SwapTM controller allows a board to be safely inserted and removed from a live backplane. Using one or more external N-channel pass transistors, board supply voltage and inrush current are ramped up at an adjustable rate. An I2C interface and onboard ADC allows for monitoring of board current, voltage, power, ...

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Surge Stoppers: Overvoltage & Overcurrent Protection ICs - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal Aug 25th 2016
Historically, overvoltage and overcurrent protection (e.g., load dump protection) was achieved using bulky capacitors, TVS diodes and fuses, but this discrete solution consumes a lot of real estate, and does not offer continuous operation through transient events. Linear Technology's family of High Voltage Surge Stoppers, ...

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LTC4233/LTC4234 10A/20A Hot Swap Controllers with Guaranteed Safe Operating Area (SOA) - Video Product Brief

Pinkesh Sachdev - Product Marketing Engineer - Mixed Signal Aug 25th 2016
The LTC®4233 and LTC4234 are integrated solutions for Hot Swap™ applications that allow a board to be safely inserted and removed from a live backplane. The parts integrate a Hot Swap controller, power MOSFET and current sense resistor in a single package for small form factor applications. The MOSFET Safe ...

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Low Voltage Power Supplies

Robert Dobkin - Chief Technical Officer Jun 9th 2016
In this video, Linear Technology Co-founder and CTO Bob Dobkin discusses low voltage power supplies less than half a volt. Most of today's power supplies have a reference of 0.6 volts, which means the output voltage must be greater than 0.6 volts. Several years ago, Linear Technology pioneered a new type of current source reference ...

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Buck-Boost DC/DC Converter with Intelligent PowerPath

James Noon - Applications Engineering Section Leader May 16th 2016
The LTC3118 combines a low-loss PowerPath controller with a single inductor buck-boost converter, resulting in a compact platform for multiple input designs. The LTC3118’s unique switch architecture allows operation from higher or lower voltage on either input, to a regulated output voltage. The wide input/output voltage ...

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Low Iq Surge Stopper for High Reliability Current Sensitive Applications

Hamza Salman Afzal - Applications Engineer Apr 26th 2016
Protecting sensitive electronic circuitry from voltage transients is an essential part of any system, be it automotive, industrial, avionic or battery-powered portable applications. Linear Technology offers a wide variety of solutions for these applications with the Surge Stopper family. LTC4380 is the exciting new member of ...

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LTC2956 Wake-Up Timer with Pushbutton Control - Video Product Brief

Chris Gobok - Product Marketing Engineer Mar 1st 2016
The LTC®2956 is a micropower, wide input voltage range, configurable wake-up timer with pushbutton control. It periodically wakes up and turns on a connected system to perform tasks like monitoring temperature or capturing images. After completing the task, the LTC2956 turns the system off to conserve power. The wake-up ...

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LTC4282 - High Current Hot Swap with I2C Compatible Monitoring

Josh Simonson - Design Engineer Dec 4th 2015
Hot Swap circuits are increasingly being used at power levels above 1000W. At these power levels multiple switch MOSFETs are required, but adding MOSFETs does not improve the power dissipation capability of the circuit when the current is regulated because the MOSFETs don’t inherently share current. The LTC4282 addresses ...

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LTC7860 High Efficiency Switching Surge Stopper - Video Product Brief

Bruce Haug - Product Marketing Engineer Mar 24th 2015
The LTC®7860 high efficiency surge stopper protects loads from high voltage transients. High efficiency permits higher currents and smaller solution sizes. During an input overvoltage event, such as a load dump in vehicles, the LTC7860 controls the gate of an external MOSFET to act as a switching DC/DC regulator ...

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Four-Channel PMBus Power System Manager with Input Energy Monitoring for Comprehensive Power System Management

Wayne Porter - Design Engineer Jan 30th 2015
Systems with multiple power rails are becoming more efficient, but increasingly complex and difficult to design. In such systems, operating costs and complexity have shifted the power system design paradigm. To adapt, groups of power supplies need to be controlled and monitored to manage efficiency, to coordinate sequencing, ...

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A Guide to Ordering Custom Programmed Digital Power System Management Devices

Bruce Haug - Product Marketing Engineer Oct 30th 2014
Digital power system management is being adopted in the marketplace because of its ability to provide accurate information about the power system and to autonomously control and supervise dozens of voltage rails with ease. Having digital control over analog power supplies with a simple PC connection is valuable during the development ...

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LTspice: SOAtherm Tutorial

Dan Eddleman - Senior Applications Engineer Oct 8th 2014
Verifying that a Hot Swap design does not exceed the capabilities of a MOSFET is a challenge at high power levels. Fortunately, thermal behavior and SOA may be modeled in circuit simulators such as LTspice IV® . The SOAtherm-NMOS symbol included in LTspice contains a collection of MOSFET thermal models developed by Linear ...

Blog Post Video LTspice 

 

Guide To Ordering LTC's Custom-Programmed EEPROM Devices

Bruce Haug - Product Marketing Engineer Sep 11th 2014
Click Here To Order Custom Programmed Parts Welcome to Linear Technology’s NVM (Non-Volatile Memory) Programming Service video product brief tutorial for Digital Power System's Management Products. This tutorial will go through the process of ordering custom-programmed first articles or prototypes. Devices eligible ...

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LT4321 PoE Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager Sep 11th 2014
The LT®4321 is a dual ideal diode bridge controller that enables a Power over Ethernet (PoE) powered device (PD) to receive power in either voltage polarity from RJ-45 data pairs, spare pairs, or both. The LT4321 and eight N-channel MOSFETs replace the eight diodes in a passive PoE rectifier bridge. The LT4321 eases ...

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LT4320 Ideal Diode Bridge Controller - Video Product Brief

Alison Steer - Product Marketing Manager Sep 11th 2014
The LT®4320/LT4320-1 are ideal diode bridge controllers that drive four N-channel MOSFETs, supporting voltage rectification from DC to 600Hz typical. By maximizing available voltage and reducing power dissipation (see thermograph comparison below), the ideal diode bridge simplifies power supply design and reduces power ...

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MOSFET Failure Protection for Single Output PolyPhase Converter

Mike Shriver - Senior Applications Engineer Mar 19th 2014
The low output voltage rails in many of today’s leading edge communication, networking, computer and industrial systems must be designed to meet the competing demands of higher load current, higher efficiency and diminishing amounts of board real estate. For cases where the load current is high, the most effective approach ...

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1.5A LDO+ Regulator Monitors Current & Temperature

Robert Dobkin - Chief Technical Officer Feb 5th 2014
LDO+ regulators do more than just regulate. They include monitor and control functions as well as regulation. The LT3081 has a wide safe area, allowing operation with high currents at high input-output differentials. Output voltage is adjustable from from 0 to 37 volts and it withstands reverse voltage. In addition to regulating, ...

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2.1A LDO+ Regulator Features Cable Drop Compensation and Monitors Current & Temperature

Robert Dobkin - Chief Technical Officer Feb 5th 2014
This video explores the LT3086, a new member of our LDO+ family. It provides many functions in addition to regulation. It can monitor and externally limit both temperature and output current, has an accurate power good output, and can compensate for wire drops between the regulator and the load. It sources up to 2.1A of output ...

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LT4321/LT4275 LTPoE++/PoE+/PoE PD Controller TechClips

Oct 24th 2013
Power over ethernet is a continuing trend in the Ethernet world. The current IEEE standard allows for up to 25.5W of PD input power. LTPoE++ is Linear Technology's solution to meet the demand for greater power with 38.7W, 52.7W, 70W and 90W power levels. Heat generated by Power Over Ethernet powered device (PD) is a design ...

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Power USB VBUS in Autos with the LT8697

Trevor Crane - Design Engineer Jul 15th 2013
USB sockets appear in an increasing number of car models as portable devices become more ubiquitous. The USB interface delivers power to portable devices via the 5V VBUS and ground lines. Depending on the USB version and the portable device, the VBUS sources up to 2.1A. In a car, this high VBUS current presents a challenge. ...

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LT4320 Ideal Diode Bridge Reduces AC/DC Rectifier Size and Cost

Ryan Huff - PoE Applications Engineer May 23rd 2013
This short video demonstrates the dramatic savings in AC/DC rectifier size, cost and heat sinking requirements that the LT4320 Ideal Diode Bridge brings over a conventional Schottky diode bridge for a similar temperature rise with a 24V AC input and 9A output load current. ...

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80V Wide Range I2C Power Monitor Simplifies Challenging System Monitoring Tasks

Mark Thoren - Staff Scientist Mar 20th 2013
Accurate monitoring of power is an essential part of a reliable and energy efficient (green) system design. Measuring voltage and current of low voltage (1.8V to 36V) supplies is straightforward, but higher voltages present additional challenges. In this video, we will show the LTC2945 wide range I2C system monitor. This device ...

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LTM4641 TechClips - Efficiency, Output Overvoltage Protection, Overcurrent Protection and More

Afshin Odabaee - Business Manager - uModule Power Products Feb 6th 2013
The LTM4641 is a 4.5V to 38V input, 0.6V to 6V output, 10A step-down μModule® regulator with comprehensive electrical and thermal protection for loads such as processors, ASICs and high-end FPGAs. The LTM4641 μModule regulator monitors input voltage, output voltage and temperature conditions. If any user-adjustable ...

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Floating Surge Stopper Provides Unlimited Overvoltage Protection

Hamza Salman Afzal - Applications Engineer Nov 7th 2012
Protecting sensitive electronic circuitry from voltage transients is an essential part of any system be it automotive, industrial, avionics or even battery-powered consumer applications. Linear Technology offers a wide variety of solutions for these applications with its surge stopper family. The LTC®4366 is the new exciting ...

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LTPoE++ PSE & PD Controllers - Video Product Brief

Chris Gobok - Product Marketing Engineer Sep 21st 2012
Power over Ethernet, or PoE, is an increasingly popular way to deliver both power and data over existing Ethernet cable, thus freeing applications from the constraint of AC-power proximity. As the number PoE solutions has grown so has the applications’ appetite for power. A new proprietary standard, LTPoE++™, satisfies this ...

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LTC4370 Two Supply Diode-OR Current Balancing Controller - Video Product Brief

Alison Steer - Product Marketing Manager Jun 8th 2012
The LTC®4370 is a two-supply current sharing controller which incorporates MOSFET ideal diodes. The diodes block reverse and shoot-through currents during start-up and fault conditions. Their forward voltage is adjusted to share the load currents between supplies. Unlike other sharing methods, neither a share bus nor trim pins ...

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LTC2990 I2C Temperature, Voltage and Current Monitor - Video Product Brief

Chris Gobok - Product Marketing Engineer Feb 23rd 2011
The LTC2990 is used to monitor system temperatures, voltages and currents. Through the I2C serial interface, the device can be configured to measure many combinations of internal temperature, remote temperature, remote voltage, remote current and internal VCC. The internal 10ppm/°C reference minimizes the number of supporting ...

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Virtual Remote Sense

Robert Dobkin - Chief Technical Officer Sep 17th 2010
Compensating for unknown wire drops without remote sensing wires is now possible. The LT4180 continuously modulates the power supply output current to interrogate the line drop. Then the output is increased to match the drop providing up to a 50 to 1 improvement in regulation at the load. ...

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LTC4360/LTC4361/LTC4362 Overvoltage / Overcurrent Protection Controllers - Video Product Brief

Alison Steer - Product Marketing Manager Aug 25th 2010
The LTC4360/LTC4361/LTC4362 overvoltage/overcurrent protection controllers safeguard 2.5V to 5.5V systems from input supply overvoltages and overcurrents. They are designed for portable devices with multiple power supply options including wall adapters, car battery adapters and USB ports. The LTC4360 controls an external ...

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LT2940 Power and Current Monitor - Video Product Brief

Kevin B. Scott - Senior Strategic Marketing Engineer Feb 11th 2010
The LT2940 measures a high side current and a differential voltage, multiplies them and outputs a current proportional to instantaneous power. Bidirectional high side currents and bipolar voltage differences are correctly handled by the four-quadrant multiplier and push-pull output stage, which allows the LT2940 to indicate ...

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