Date: 1st Jun 2011
TI introduces isolated DC/DC converter
for low-noise 2-W power supplies
Texas Instruments Incorporated (TI) has introduced DC/DC
converter for low-noise 2-W power supplies , used in programmable
logic controllers, industrial automation and other noise-sensitive
data acquisition designs.
The isolated DC/DC converter can be used with high-speed
digital isolators, such as the ISO721 and ISO722, and isolated
transceivers like the ISO1176 isolated Profibus device,
the ISO35 isolated 3.3-V RS-485 device and the ISO3086 isolated
5-V RS-485 transceiver. In addition to the TPS55010, TI's
popular 1-W DCP010505 open-frame power module with integrated
transformer provides simple isolated power conversion and
ground-loop elimination.
Key features and benefits of the TPS55010 as listed by
TI:
2-W isolated power converter with integrated FETs supports
variety of industrial designs. Output voltage is set by
a resistor divider and the transformer turns ratio.
Wide switching frequency range (100 kHz to 2 MHz) offers
design flexibility to optimize efficiency and space. Frequency
can be synchronized to a master clock to reduce noise in
sensitive data acquisition circuitry.
Supports -40 degrees C to +150 degrees C operating junction
temperature and comes in a space-saving, thermally enhanced
3-mm x 3-mm x 1-mm monolithic QFN package.
Availability: Now.
Package: 16-pin, 3-mm x 3-mm, QFN package.
Price: $1.65 for 1K units.
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