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new products
guidelines. They are also under a great deal of pressure
from consumers for these products to deliver smooth, silent
operation,” explains IkuyaKawasaki, Intelligent Power Solution
Business Unit General Manager at ON Semiconductor. “The
180° drive and lead angle adjustment of our LV8811/LV8813/
LV8814 offering enable engineers to design systems that
attain the elevated performance characteristics that are now
being demanded. Moreover, design engineers can save
development time and workload, and rapidly roll-out their
products.”
Packaging and Pricing The LV8811/LV8813/LV8814 are all
supplied in RoHS-compliant TSSOP-20J/SSOP-20 packages,
and respectively priced at $0.938 (LV8811/LV8813) and
$0.785 (LV8814) per unit in 2,000 unit quantities.
Low ohmic value current sensing resistors
from TT Electronics reduce design footprint
TT Electronics, a global provider of engineered
electronics for performance critical applications, today
launched the LCS series of thin film resistors. For
sensing and measurement of DC and AC currents in
the sub-3A range, the resistors bring precision thin film
resistor performance into the field of low ohmic values
for use in very accurate current sensing applications.
Most thin film chips have a minimum value in the range
of one to 10Ω, but TT Electronics’ LCS series uses a
proprietary technology to extend this down to 100mΩ.
The resistors also feature low sensitivity to temperature
variations.
Aimed at designers of power supplies, batterymonitoring,
process control and point of load converters, the LCS
resistors will find acceptance for use in market sectors
such as industrial, medical, instrumentation and IT.
The resistors offer a level of precision of ±0.5% and
±50ppm/°C, providing higher precision and temperature
stability of current measurement. While there are
currently a few thin film chip products below one ohm
that use the nickel phosphorus material traditionally
used for low value films, TT Electronics’ proprietary LCS
film system delivers lower TCRs (temperature coefficient
of resistance) in the hundreds of milliohms range.
Available in five sizes from 0603 to 2512, LCS resistors
feature high power ratings, e.g. 1W for 2512, which
is comparable to thick film ratings. This also enables
smaller footprints to be used. Enhancing reliability and
reducing field failures in industrial applications, LCS
also feature anti-sulphur terminations.
A major factor driving the demand for this type of
product is the growth of battery powered equipment.
The proprietary thin film technology of TT Electronics’
LCS bridges the gap between the ohmic values offered
by bulk metal chips and those of conventional nichrome
thin film chips. Whilst thick film chips are also available
in this very low ohmic range, LCS offers superior
precision, offering the lowest TCR for precision current
sensing available in the 0.1 to 1 Ω range.
LCS series resistors are available from the following
distributors: Mouser, Newark, and Farnell. For other
franchised distributors, please see http://www.
ttelectronicsresistors.com/sales.php.STMicroelectronics Boosts Access to
High-Performance Embedded Design with New
STM32F7 MCU Lines and Ecosystem
Extensions
STMicroelectronics has introduced new STM32F7
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