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Solutions Search - High Voltage Hot Swap Controllers

LTspice Models of ISO 7637-2 & ISO 16750-2 Transients

Dan Eddleman - Senior Applications Engineer Apr 5th 2017
Introduction Simulating the ISO 7637-2 and ISO 16750-2 transients early in the design phase of an automotive product can pinpoint issues that would otherwise come to light during electromagnetic compatibility (EMC) testing. If a product fails EMC testing, hardware modifications are required, project schedules suffer, and extra ...

Blog Post LTspice 

 

DC2423A-B - LTM9100 Demo Board | Isolated 380V Switch Controller with Telemetry [requires DC590 or DC2026]

Mar 8th 2017
Demonstration circuit 2423A showcases the LTM®9100 Isolated Switch Controller in either a typical 48V application (–A) or in a high voltage 380V application (–B). The board may be configured for either high side or low side operation, dependent on the connection of external supply and load to the banana jacks. ...

Demo Board Linduino QuikEval System 

 

DC2423A-A - LTM9100 Demo Board | Isolated 48V Switch Controller with Telemetry [requires DC590 or DC2026]

Mar 8th 2017
Demonstration circuit 2423A showcases the LTM®9100 Isolated Switch Controller in either a typical 48V application (–A) or in a high voltage 380V application (–B). The board may be configured for either high side or low side operation, dependent on the connection of external supply and load to the banana jacks. ...

Demo Board Linduino QuikEval System 

 

Isolated Anyside Switch Controller Protects & Monitors Up to 1000VDC Power Supplies

Feb 27th 2017
MILPITAS, CA – February 27, 2017 – Linear Technology Corporation introduces the LTM9100 µModule® (micromodule), an all-in-one Isolated Anyside™ switch controller that protects and monitors high voltage DC power supplies up to 1000V. High voltage supplies used in industrial, datacom, avionic and medical ...

Press Release 

 

LTspice SOAtherm Support for PCB and Heat Sink Thermal Models

Dan Eddleman - Senior Applications Engineer Sep 1st 2016
The SOAtherm model distributed with LTspice software and simplifies Hot Swap and Surge Stopper designs by verifying directly within a circuit simulation that a particular MOSFET’s Safe Operating Area (SOA) is not exceeded. This article assumes a basic understanding of the SOAtherm model. If you are not familiar with SOAtherm, ...

Blog Post LTspice 

 

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, ...

Video 

 

LTspice: Using Time-Dependent Exponential Sources to Model Transients

Mitchell Lee - Applications Engineer
Gabino Alonso - Strategic Marketing Engineer
May 15th 2016
When working with Surge Stoppers or Hot Swap Controllers, occasionally there is a need to simulate a circuit's behavior with a specified voltage or current transient. These transients are usually modeled using a double exponential waveform characterized by a peak voltage, a rise time (usually 10%–90%), a fall time to 50% ...

Blog Post LTspice 

 

DC2178A-B - LTC4380IDD-2 Demo Board | Low Quiescent Current Surge Stopper, Auto-Retry Version

May 5th 2016
Demonstration circuit 2178A showcases the LTC®4380 low quiescent current surge stopper in an application which can be configured for 12V, 1A or 24V/28V, 0.5A operation. The output voltage is clamped by the LTC4380, permitting the load to operate uninterrupted during transients of up to 250V and load dump surges such as ISO-16750-2 ...

Demo Board 

 

DC2178A-A - LTC4380IDD-1 Demo Board | Low Quiescent Current Surge Stopper, Latchoff Version

May 5th 2016
Demonstration circuit 2178A showcases the LTC®4380 low quiescent current surge stopper in an application which can be configured for 12V, 1A or 24V/28V, 0.5A operation. The output voltage is clamped by the LTC4380, permitting the load to operate uninterrupted during transients of up to 250V and load dump surges such as ISO-16750-2 ...

Demo Board 

 

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 ...

Video 

 

LTC2956 Micropower, Reverse Battery Protected Pushbutton Controller and Sleep Timer with Hot-Swap Controller

Mar 19th 2015
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. ...

Circuit 

 

LTC4218 12V / 100A Hot Swap Design for Server Farms

Dan Eddleman - Senior Applications Engineer Mar 18th 2015
Cultivate reliability on the farm with a properly designed Hot Swap circuit. Introduction As data centers servicing the cloud grow in speed and capacity, backplane supplies are called on to deliver currents that push the performance boundaries of Hot Swap™ components. Hot Swap solutions allow boards to be inserted and ...

Blog Post Circuit LTspice 

 

LTC4226 Parallel MOSFETs in Hot Swap Circuits

Dan Eddleman - Senior Applications Engineer
Gabino Alonso - Strategic Marketing Engineer
Mar 13th 2015
The Good, the Bad, and the Ugly Introduction While it is often desirable, and sometimes absolutely critical, to use multiple parallel MOSFETs in Hot Swap™ circuits, careful analysis of Safe Operating Area (SOA) is essential. Each additional parallel MOSFET added to a circuit improves the voltage drop, power loss, and ...

Blog Post Circuit LTspice 

 

Understanding Power Monitor Accuracy

Mark Thoren - Staff Scientist
Hamza Salman Afzal - Applications Engineer
Feb 20th 2015
Measurement of a system’s power consumption during a final factory test (before deployment into the field) is a prudent part of a test program for any product. But there is an increasing emphasis to bring this functionality into the product itself for “run-time” monitoring of power, current, supply voltage, ...

Blog Post 

 

Surge Stoppers Ease MIL-STD-1275D Compliance

Dan Eddleman - Senior Applications Engineer Nov 25th 2014
Introduction A military vehicle is a tough environment for electronics, where the potential for damaging power supply fluctuations is high. U.S. Department of Defense MILSTD- 1275D sets down the requirements for electronics when powered from a 28V supply, ensuring that electronics survive in the field. MIL-STD-1275D compliance ...

Blog Post 

 

DC2161A-B - LTC4231IMS-2 Demo Board | Micropower Hot Swap Controller with Auto-Retry

Nov 11th 2014
Demonstration circuit 2161A showcases the LTC®4231 Micropower Hot Swap™ Controller in a 12V, 3A application. Included on the board are input overvoltage and reverse voltage protection, input voltage dividers for UV and OV detection, an output voltage LED, jumpers to disable UV/OV, manual and remote enable control, ...

Demo Board 

 

DC2161A-A - LTC4231IMS-1 Demo Board | Micropower Hot Swap Controller with Latch-Off

Nov 11th 2014
Demonstration circuit 2161A showcases the LTC®4231 Micropower Hot Swap™ Controller in a 12V, 3A application. Included on the board are input overvoltage and reverse voltage protection, input voltage dividers for UV and OV detection, an output voltage LED, jumpers to disable UV/OV, manual and remote enable control, ...

Demo Board 

 

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 

 

DC2150A-C - 28V, 5A MIL-STD-1275D Surge Stopper [Featuring LTC4366HTS8-2 and LT4363HS-2]

Sep 22nd 2014
Demonstration circuit 2150A uses the LTC®4366-2 and LT4363-2 surge stoppers to satisfy MIL-STD-1275D. This specification, created by the United States Department of Defense, sets down requirements of electrical systems powered from a military vehicle’s 28V power supply. DC2150A’s output voltage is limited to ...

Demo Board 

 

LTC4252B-1 –48V/2.5A Hot Swap Controller

Sep 2nd 2014
The LTC®4252 negative voltage Hot SwapTM controller allows a board to be safely inserted and removed from a live backplane. Output current is controlled by three stages of current limiting: a timed circuit breaker, active current limiting and a fast feedforward path that limits peak current under worst-case catastrophic ...

Circuit LTspice 

 

4μA I Hot Swap Controller Protects Batteries from Voltage & Current Faults

Aug 25th 2014
MILPITAS, CA - August 25, 2014 - Linear Technology Corporation introduces the LTC4231, an ultralow quiescent current (IQ) Hot Swap™ controller, enabling safe board or battery insertion and extraction from 2.7V to 36V systems. The LTC4231 controls an external N-channel MOSFET to gently power up board capacitors, avoiding sparks, ...

Press Release 

 

LTspice: Modeling Safe Operating Area Behavior of N-channel MOSFETs

Dan Eddleman - Senior Applications Engineer
Gabino Alonso - Strategic Marketing Engineer
Aug 22nd 2014
Introduction Often the most challenging aspect of Hot Swap™ circuit design is verifying that a MOSFET’s Safe Operating Area (SOA) is not exceeded. The SOAtherm tool distributed with LTspice IV® simplifies this task, allowing a circuit designer to immediately evaluate the SOA requirements of an application and ...

Blog Post LTspice 

 

LTC4364-1 4A, 12V Overvoltage Output Regulator with Ideal Diode Withstands 200V 1ms Transient at VIN

Aug 4th 2014
The LTC4364 surge stopper with ideal diode controller protects loads from high voltage transients. It limits and regulates the output during an overvoltage event, such as load dump in automobiles, by controlling the voltage drop across an external N-channel MOSFET pass device. The LTC4364 also includes a timed, current limited ...

Circuit LTspice 

 

LTC4261 –48V/200W Hot Swap Controller with I2C and ADC

Aug 4th 2014
The LTC®4261/LTC4261-2 negative voltage Hot SwapTM controllers allow a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped at an adjustable rate. The devices feature independently adjustable inrush current and overcurrent limits ...

Circuit LTspice 

 

DC1555C-B - LTC4365CTS8-1 Demo Board | High Voltage NFET Driver for UV, OV and Reverse Supply Protection with 1ms Fault Recovery

Jan 6th 2014
Demonstration circuit DC1555C is intended to demonstrate the performance of the LTC4365 and LTC4365-1 Undervoltage, Overvoltage and Reverse Supply Protection Controllers. The LTC®4365/LTC4365-1 protect circuits from input voltages that may be too high, too low or negative. It operates by controlling the gates of two back-to-back ...

Demo Board 

 

DC2062A-A - LT4363IDE-1 Demo Board: 12V System ISO-7637-2 Surge Stopper, Latch-Off Version

Oct 21st 2013
DC2062A-A - Demo Board for:LT4363 - High Voltage Surge Stopper with Current Limit ...

Demo Board 

 

DC2062A-B - LT4363IDE-2 Demo Board: 12V System ISO-7637-2 Surge Stopper, Auto-Retry Version

Oct 21st 2013
DC2062A-B - Demo Board for:LT4363 - High Voltage Surge Stopper with Current Limit ...

Demo Board 

 

DC1555B - LTC4365CTS8 Demo Board: High Voltage NFET Driver for UV, OV and Reverse Supply Protection

Apr 22nd 2013
DC1555B - Demo Board for:LTC4365 - Overvoltage, Undervoltage and Reverse Supply Protection Controller ...

Demo Board LTspice 

 

DC2027A-B - LTC4364DE-2 Demoboard: 12V Surge Stopper with Ideal Diode, Auto Retry

Jan 16th 2013
DC2027A-B - Demo Board for:LTC4364 - Surge Stopper with Ideal Diode ...

Demo Board 

 

DC2027A-A - LTC4364DE-1 Demoboard: 12V Surge Stopper with Ideal Diode, Latch Off

Jan 16th 2013
DC2027A-A - Demo Board for:LTC4364 - Surge Stopper with Ideal Diode ...

Demo Board 

 

DC787A-B - LTC4252CCMS-2 Demoboard | Negative Voltage Hot Swap Controller in an AdvancedTCA Application, Auto Retry After Fault

Jan 10th 2013
DC787A-B - Demo Board for:LTC4252B-1/LTC4252B-2 LTC4252C-1/LTC4252C-2 - Negative Voltage Hot Swap Controllers ...

Demo Board 

 

Dual Hot Swap Controller with Flexible Current Limit Rides Through Load Surges without System Interruption

Nov 6th 2012
MILPITAS, CA – November 6, 2012 – Linear Technology Corporation introduces the LTC4226, a dual Hot Swap™ controller, enabling safe board insertion into live 4.5V to 44V backplanes. The LTC4226 controls external N-channel MOSFETs to gently power up the board, avoiding sparks, connector damage and system glitches. Each supply is ...

Press Release 

 

DC1850A-B - LTC4366-2 Demoboard | Very High Voltage Surge Stopper with Auto-Retry

Oct 9th 2012
DC1850A-B - Demo Board for:LTC4366-1/LTC4366-2 - High Voltage Surge Stopper ...

Demo Board 

 

DC1850A-A - LTC4366-1 Demoboard | Very High Voltage Surge Stopper with Latchoff

Oct 9th 2012
DC1850A-A - Demo Board for:LTC4366-1/LTC4366-2 - High Voltage Surge Stopper ...

Demo Board 

 

Surge Stopper Integrates Ideal Diode for Comprehensive Protection Against Transient Voltages, Currents & Reverse Inputs & Outputs

Jul 23rd 2012
MILPITAS, CA – July 23, 2012 – Linear Technology Corporation introduces the LTC4364, a surge stopper with ideal diode, providing compact and low-loss protection for 4V to 80V electronics in automotive, avionics and industrial systems. The surge stopper shields downstream electronics from input overvoltages and overcurrent, ...

Press Release 

 

DC787A-A - LTC4252CCMS-1 Demoboard | Negative Voltage Hot Swap Controller in an AdvancedTCA Application, Latch Off After Fault

Jul 3rd 2012
DC787A-A - Demo Board for:LTC4252B-1/LTC4252B-2 LTC4252C-1/LTC4252C-2 - Negative Voltage Hot Swap Controllers ...

Demo Board 

 

Wide Operating Range Ideal Diode Controller Provides Negative Input Protection & Low Current Operation

May 31st 2012
MILPITAS, CA – May 31, 2012 – Linear Technology Corporation introduces the LTC4359 high voltage ideal diode controller that offers a simple low loss replacement to Schottky diodes, along with key features targeted for automotive, avionics as well as solar applications. The LTC4359 operates over a wide 4V to 80V supply range ...

Press Release 

 

DC1935A-B - LT4363-2 Demo Board: High Voltage Surge Stopper with Current Limit, Auto-Retry Version

Apr 24th 2012
DC1935A-B - Demo Board for:LT4363 - High Voltage Surge Stopper with Current Limit ...

Demo Board 

 

DC1935A-A - LT4363-1 Demo Board: High Voltage Surge Stopper with Current Limit, Latch-Off Version

Apr 24th 2012
DC1935A-A - Demo Board for:LT4363 - High Voltage Surge Stopper with Current Limit ...

Demo Board 

 

High Voltage Surge Stopper with Current Limit Shields Sensitive Electronics from Transients Beyond 100V

Jan 16th 2012
MILPITAS, CA – January 16, 2012 – Linear Technology Corporation introduces the LT4363, an overvoltage protection controller that provides overvoltage and overcurrent protection to high-availability electronic systems. Supply voltages surge whenever currents flowing through long inductive power buses change abruptly. Also, ...

Press Release 

 

Overvoltage Protection Regulator & Inrush Current Limiter Provides Protection Barrier for Intrinsic Safety Applications

May 5th 2009
MILPITAS, CA - May 5, 2009 - Linear Technology Corporation introduces the LT4356-3, an overvoltage protection regulator with overcurrent protection and inrush current limiting for high availability systems. The LT4356-3 is a new option offering latchoff operation under fault conditions, and is the latest member of a family of ...

Press Release 

 

DC1018B-C - LT4356-3 Demo | Overvoltage Protection Regulator with Latch-Off

Mar 19th 2009
DC1018B-C - Demo Board for:LT4356-3 - Surge Stopper with Fault Latchoff ...

Demo Board 

 

Overvoltage Protection Regulator & Inrush Current Limiter Ensures Reliable Operation During Power Surges

Jul 9th 2007
MILPITAS, CA - July 9, 2007 - Linear Technology Corporation introduces the LT4356, an overvoltage protection regulator, with overcurrent protection and inrush current limiting for high availability systems. In applications where electronic systems must cope with high voltage surges of short duration, such as load dump in automobiles, ...

Press Release 

 

DC1018B-B - LT4356-2 Demo | Overvoltage Protection Regulator with Auto-retry, Aux Amplifier remains on during Shutdown

Jul 2nd 2007
DC1018B-B - Demo Board for:LT4356-1 and -2 - Surge Stopper ...

Demo Board 

 

DC1018B-A - LT4356-1 Demo | Overvoltage Protection Regulator with Auto-retry

Jul 2nd 2007
DC1018B-A - Demo Board for:LT4356-1 and -2 - Surge Stopper ...

Demo Board 

 

-48V Hot Swap Controller with Onboard ADC & I2C Interface Monitors Board Current, Voltages & Faults

Oct 3rd 2005
MILPITAS, CA - October 3, 2005 - Linear Technology Corporation introduces the LTC4261, a negative high voltage Hot Swap™ controller. It features an onboard 10-bit ADC and I2C compatible interface, allowing sophisticated power monitoring by measuring card voltages and currents as well as recording past and present fault conditions. ...

Press Release 

 

DC998A - LTC4261 -48V Hot Swap w/ADC (req DC590)

Aug 31st 2005
DC998A - Demo Board for:LTC4261 - Negative Voltage Hot Swap Controllers with ADC and I2C Monitoring ...

Demo Board Linduino QuikEval System 

 

AdvancedTCA Four Fuse Monitoring Application

Aug 31st 2005
The LTC4261 negative voltage Hot Swap controllers allow a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped at an adjustable rate. The devices feature independently adjustable inrush current and overcurrent limits to minimize stresses ...

Circuit 

 

DC786A - LTC4260CGN | 200W Positive 48V Hot Swap Controller With Current and Voltage Monitoring (req DC590)

Nov 4th 2004
DC786A - Demo Board for:LTC4260 - Positive High Voltage Hot Swap Controller with I2C Compatible Monitoring ...

Demo Board Linduino QuikEval System 

 

AdvancedTCA with High-Side and Low-Side Ideal Diode-OR and Hot Swap Controller with I2C Current and Voltage Monitor

Aug 3rd 2004
The LTC4355 is a positive voltage ideal diode-OR controller that drives two external N-channel MOSFETs. Forming the diode-OR with N-channel MOSFETs instead of Schottky diodes reduces power consumption, heat dissipation and PC board area. ...

Circuit 

 

Part 1: 200W -48 AdvancedTCA Hot Swap Controller with I2C Input/Output Monitoring and Power Good Watchdog

Aug 3rd 2004
The LTC4261 negative voltage Hot Swap controllers allow a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped at an adjustable rate. The devices feature independently adjustable inrush current and overcurrent limits to minimize stresses ...

Circuit 

 

LT4256 48V, 2A Hot Swap Controller

Jan 27th 2004
The LT4256-1are high voltage Hot Swap controllers that allow a board to be safely inserted and removed from a live backplane. An internal driver drives an external N-channel MOSFET switch to control supply voltages ranging from 10.8V to 80V. The LT4256-1 latches off until the UV pin is cycled low. ...

Circuit LTspice 

 

DC1354A-A - LT4256-1 Positive High Voltage Hot Swap Controllers with Latch-off (-1)

Jan 27th 2004
DC1354A-A - Demo Board for:LT4256-1 - Positive High Voltage Hot Swap Controllers ...

Demo Board 

 

DC1354A-B - LT4256-2 Positive High Voltage Hot Swap Controllers with Auto-Retry(-2)

Jan 27th 2004
DC1354A-B - Demo Board for:LT4256-2 - Positive High Voltage Hot Swap Controllers ...

Demo Board 

 

DC684A - LT4256-3 Positive Voltage Hot Swap Controller

Mar 25th 2003
DC684A - Demo Board for:LT4256-3 - Positive High Voltage Hot Swap Controller with Open-Circuit Detect LT4254 - Positive High Voltage Hot Swap Controller with Open-Circuit Detect ...

Demo Board 

 

Part 2: 200W -48 AdvancedTCA Hot Swap Controller with I2C Input/Output Monitoring and Power Good Watchdog

Oct 7th 2002
The LTC4261 negative voltage Hot Swap controllers allow a board to be safely inserted and removed from a live backplane. Using an external N-channel pass transistor, the board supply voltage can be ramped at an adjustable rate. The devices feature independently adjustable inrush current and overcurrent limits to minimize stresses ...

Circuit 

 

200W AdvancedTCA Hot Swap Controller Circuit

Jul 24th 2001
The LTC4252 negative voltage Hot Swap controller allows a board to be safely inserted and removed from a live backplane. Output current is controlled by three stages of current limiting: a timed circuit breaker, active current limiting and a fast feedforward path that limits peak current under worst-case catastrophic fault conditions. ...

Circuit 

 

DC429A - LT4250LCS8 | Negative Voltage Hot Swap Controller

May 25th 2001
DC429A - Demo Board for:LT4250 - Negative 48V Hot Swap Controller ...

Demo Board 

 

DC1354A-C - LT1641-1 | Positive High Voltage Hot Swap Controllers with Latch-off (-1)

Aug 27th 1999
DC1354A-C - Demo Board for:LT1641-1 and -2 - Positive High Voltage Hot Swap Controllers ...

Demo Board 

 

DC1354A-D - LT1641-2 | Positive High Voltage Hot Swap Controllers with Auto-Retry(-2)

Aug 27th 1999
DC1354A-D - Demo Board for:LT1641-1 and -2 - Positive High Voltage Hot Swap Controllers ...

Demo Board