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Blog
Tuesday, June 16, 2009
Microsemi Corp LXMG1960-28: Driving systems targets midsized LED-backlit panels
Jun 16 2009 2:11PM | Permalink |Comments (0) |
Based on the vendor’s LX1996 LED driver, the LXMG1960-28 backlight-driving integrated plug-and-play system suits midsized LED-backlit panels. Aiming at LCD televisions, notebook computers, automotive, and other display platforms and applications, the module consists of a boost converter and six programmable precision current sinks. The system drives as many as six strings of LEDs with string-to-string current matching of 1% for panel-brightness uniformity. A dedicated input pin works with an external thermistor, providing output-current foldback to protect the LEDs in overtemperature scenarios. Additional features include a 4.75 to 28V input voltage and support for dc-voltage, PWM-signal, and potentiometer-dimming methods, and a combination of analog and digital dimming, providing a 1000-to-1 dimming ratio. Available in an ROHS-compliant package, the LXMG1960-28 costs $10 to $15.
Microsemi Corp, www.microsemi.com
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