大功率LED驱动：

电阻

THE TLE 4242G from <a href="http://www.electronicsnews.com.au/view_company.asp?companyid=3755" target="_blank" >Soanar</A> drives high-power LEDs with constant current, resulting in constant brightness and extended lifetimes.


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<TD><FONT><I>TLE 4242G LED driver device.</I> </FONT></TD></TR></TABLE></TD>
<TD width=1 bgColor=white> </TD></TR></TABLE><FONT>The driver can withstand harsh automotive requirements due to internal protection circuits which prevent damage from overload, short circuits, reverse polarity and over-temperature. The output current level is adjustable via an external resistor.

</FONT><FONT>The drivers are suitable for automotive uses such as daylight/running lights, brake lights, in-car lightning, tail lights and turn signal. They can also be used for traffic lights, street marker lights and emergency lightning.

</FONT><FONT>The drivers feature adjustable constant current for all currents up to 500mA. They offer pulse width modulation (PWM) for brightness control that allows exact brightness setting.

</FONT><FONT>Diagnosis output for LED failure detection is also provided as is over-temperature, reverse polarity and short circuit protection.

</FONT><FONT>Soanar 1300 889 883

</FONT><FONT><I>21 November 2003</I></FONT>

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