Breaking News

38V, 10A DC/DC μModule® Regulator With Fault Protection Powers High-End ASICs & FPGAs

Pulsed loading conditions and abnormal disturbances within the electrical systems found in industrial, vehicle, avionic, and other harsh environments can induce wildly varying voltage transients (surges) on what is nominally a 24VDC or 36VDC distributed bus. The disturbances can be between a millisecond to a minute in length, with excursions reaching (or exceeding) 38V and falling below 6V. The severity rating often becomes more of a concern at higher input voltages.

The LTM4641 challenges this notion by protecting the load from seeing excessive voltage stress, even when its high side switching MOSFET is short-circuited. The LTM®4641 is a 10A switch mode step-down DC/DC μModule® regulator with advanced input and load protection features. Trip detection thresholds for the following faults are customizable: input undervoltage, overtemperature, input overvoltage, and output overvoltage. Fault conditions can be set for latchoff or hysteretic restart response -- or disabled. Included in the package are the switching controller and housekeeping ICs, power MOSFETs, inductor, overvoltage drivers, biasing circuitry, and supporting components. Operating from input voltages of 4V to 38V (4.5V startup), the device supports output voltages from 0.6V to 6V, set by an external resistor network remote sensing the point-of-load’s voltage.
NO RATINGS
3/21/2014 05:00 PM EDT | Post a comment
Related Videos
Linear Technology
This video explores the LT3086, a new member of our LDO+ ...
In today’s modern electronic systems, the need for power ...
Differential op amps are important building blocks in ...
Wireless sensor networks in general have a wide array of ...
11:42
LDO+ regulators do more than just regulate. They include ...
Bandwidth has become more precious than gold. As we push ...
The digital power supply market has achieved rapid progress ...
Linear Technology’s LTM®4620 uses a proprietary lead frame ...
With the increased-use of electronics in automotive and ...
Linear Technology’s LT®3970/LT3971 lead the industry in ...
The LTC3639 step-down regulator integrates key high ...
Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Rishabh N. Mahajani, High School Senior and Future Engineer

Future Engineers: Don’t 'Trip Up' on Your College Road Trip
Rishabh N. Mahajani, High School Senior and Future Engineer
3 comments
A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

Max Maxfield

Juggling a Cornucopia of Projects
Max Maxfield
19 comments
I feel like I'm juggling a lot of hobby projects at the moment. The problem is that I can't juggle. Actually, that's not strictly true -- I can juggle ten fine china dinner plates, but ...

Larry Desjardin

Engineers Should Study Finance: 5 Reasons Why
Larry Desjardin
39 comments
I'm a big proponent of engineers learning financial basics. Why? Because engineers are making decisions all the time, in multiple ways. Having a good financial understanding guides these ...

Karen Field

July Cartoon Caption Contest: Let's Talk Some Trash
Karen Field
144 comments
Steve Jobs allegedly got his start by dumpster diving with the Computer Club at Homestead High in the early 1970s.

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)