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| Micrel Announces New Family of High-Current Power Distribution
Switches | | | |
San Jose, Calif. - Micrel Inc. launched a family of high-current power switches.
The MIC2004/5/6 chips are aimed at PCs, Set-Top-Boxes, Game controllers and USB host devices, including the market’s
latest printers which all require current limiting as protection against short circuits. The MIC2004, MIC2005 and
MIC2006 are currently available in volume quantities and in two package options, SOT-23 and 2mm x 2mm MLF™. Pricing
starts at $0.54 in 1K quantity for SOT-23 and $0.58 in 1K quantity for MLF.
“The consumer market, especially for
multi-function printers, continues to be robust,” noted Scott Brown, director of Mixed-Signal and RF Products,
Micrel. “All PCs and millions of printers feature USB sockets as the standard connection for peripherals and each
requires current limiting as protection against short circuits. Micrel’s newest family of power distribution
switches offers the industry’s highest current rating to footprint ratio and an unparalleled feature set, making
them ideal for these applications.”
The MIC2004/5/6 all feature preset current limits of 0.5A,
0.8A and 1.2A in the smallest form factors available on the market today. These single output ICs are capable of
serving multiple (USB) ports providing both cost and space savings. Standard Features include Soft-start turn-ON,
thermal protection and an Enable input for eternal switch control. The MIC2004 offers a Load Discharge FET to insure
output capacitors retain no charge when the switch is OFF. The MIC2005 features user-adjustable soft-start to create
glitch free turn-ON for power supplies ranging from strong to delicate, and a Fault flag for indication of
over-current or over-temperature events with fault blanking to prevent nuisance alerts on transient. The MIC2006
offers Dynamic Load Management (DLM), a revolutionary new feature that provides a dynamic current limit in addition
to the factory pre-set limit. DLM monitors the source supply for weaknesses and will disable its load if the source
voltage drops below a user-defined threshold. This creates a moving current limit which dynamically adjusts itself
according to system-wide conditions.
“Micrel’s mixed-signal IC solutions continue to stay one
step ahead of the market’s needs,” noted Bob Whelton, executive vice president of Operations, Micrel. “The
MIC2004/5/6 all offer an innovative feature set, high current ratings and packaging options giving designers the
design flexibility and increased functionality they require for space constrained, cost conscious consumer
products.” |
Miércoles, 24 Agosto, 2005 - 09:48 | |
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| Micrel Announces New Family of High-Current Power Distribution
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