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
Wal-Mart will hold its second Made in the USA Open Call July 7-8, at its headquarters in Bentonville, Ark. The event will be a repeat effort by the world’s biggest seller of consumer goods to increase the amount of US-made products it sells in Wal-Mart stores, in Sam’s Club members-only wholesale outlets, and on walmart.com.
From design feasibility, to development, to production, having the right information to make good decisions can ultimately keep a product from failing validation. The key is highly focused information that doesn’t come from conventional, statistics-based tests but from accelerated stress testing.
There’s a good chance that a few of the things mentioned here won't fully come to fruition in 2015 but rather much later down the line. However, as Malcolm X once said, "The future belongs to those who prepare for it today."
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.