ON Semiconductor [1] has announced two new low dropout (LDO) voltage
regulator ICs [2]. Building on the company's market-leading power
management portfolio for automotive applications, the new devices are
ideal for use in audio and infotainment systems, instrument [3]
cluster, navigation and satellite radio. The new NCV47700 and NCV47701
LDOs feature an output diagnostic pin CSO that can be used to detect
open and shorted loads. Using a resistor connected to the CSO provides
an adjustable output current level between 10 milliamperes (mA) and
350 mA with ±10% accuracy. Tying the ADJ pin to ground configures the
NCV47700 and NCV47701 to be a current limited high-side switch. High
peak input voltage tolerance and reverse input voltage protection, as
well as overcurrent and overtemperature protection functions are all
included to safeguard against the effects of the harsh operating
conditions typical of automotive applications. An integrated current
sense feature negates the need to implement a discrete solution that
would use more board space and raise the total component count.
Adjustable output voltage versions of the devices are available; these
cover the 5 volt (V) to 20 V range, with ± 6% accuracy for the
NCV47700 and ± 3% accuracy for the NCV47701. Both new LDO voltage
regulator ICs have a junction operating temperature [4] range of -40
⁰C to +150 ⁰C, that matches or exceeds the specifications
stipulated by the automoitive industry.
"These feature-packed LDOs are differentiated from alternative
market offerings by integrated current sensing functionality and an
array of protection mechanisms," said Jim Alvernaz, director of the
Automotive product division at ON Semiconductor "The devices enable
electronic [5] design engineers to implement power management
subsystem diagnostics, without the employment of a discrete current
measurement circuit or additional protection components. This leads to
improved power regulation in the audio/infotainment systems,
instrumentation clusters and navigation systems found in modern
vehicles."
Packaging and Pricing
The NCV47700 is offered in a SOIC−8 package and priced at $0.72 per
unit in 2500 unit quantities, while the NCV47701 is offered in
SOIC−8 package and priced at $0.77 per unit in 2500 unit quantities.
View original post here:
Adjustable output low dropout voltage regulators serve automotive
applications
Links:
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[1] http://www.autoparts-marketplace.com/searchkeyword.aspx?q=Semiconductor&ao=0
[2] http://www.autoparts-marketplace.com/searchkeyword.aspx?q=ICs&ao=0
[3] http://www.autoparts-marketplace.com/searchkeyword.aspx?q=instrument&ao=0
[4] http://www.autoparts-marketplace.com/searchkeyword.aspx?q=temperature&ao=0
[5] http://www.autoparts-marketplace.com/searchkeyword.aspx?q=electronic&ao=0
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