Technology Corp.'s H-grade version of the LTC3872 has a small footprint 550kHz fixed frequency step-up dc/dc controller
that is specified over a -40
to150C junction temperature range. The LTC3872 accepts a 2.5 to 9.8V input
voltage range and can produce an output voltage as
high as 60V without needing a sense resistor. Capable of driving large
N-channel MOSFETs, the LTC3872 can produce high peak output currents. When
powered with a 5V bias voltage, the switch can go
up to 60V, making it well suited
for automotive, heavy equipment and industrial control applications.
current-mode architecture provides cycle-by-cycle current limiting and
transient response. Pulse skipping operation at light loads reduces the
quiescent current to 250uA which helps extend the run-time in the battery-powered
applications during standby mode. Additional features include an internal
soft start, adjustable current limit, precision undervoltage lockout and tight
±1.6 percent reference voltage accuracy over the full -40 to 150C operating
temperature range. The LTC3872H is offered in a
thermally enhanced 2mm x 3mm DFN-8 package and 8-lead ThinSOTTM package. 1,000-piece
pricing starts at $2.35 each.
VOUT up to 60V without sense resistor
VIN Range: 2.75 to 9.8V
Constant frequency 550kHz operation
Adjustable current limit
Pulse skipping at light load
Internal soft-start and optional external soft-start
±1.6 percent reference voltage accuracy
Thermally enhanced 2 x 3 mm DFN-8 and ThinSOT packages
Truchard will be presented the award at the 2014 Golden Mousetrap Awards ceremony during the co-located events Pacific Design & Manufacturing, MD&M West, WestPack, PLASTEC West, Electronics West, ATX West, and AeroCon.
In a bid to boost the viability of lithium-based electric car batteries, a team at Lawrence Berkeley National Laboratory has developed a chemistry that could possibly double an EV’s driving range while cutting its battery cost in half.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.