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White LED driver suits up for automotive displays

Posted: 27 Oct 2008 ?? ?Print Version ?Bookmark and Share

Keywords:LED white? display TFT LCD?

Rohm Electronics white LED driver IC (BD8113EFV-E2) provides constant current for white LED backlights in medium- to large-format TFT-LCD automotive displays. The dual-channel driver produces up to 150mA constant current per channel with current-mode buck/boost DC/DC control for constant display brightness over automotive temperature ranges (-40C to 105C), even with fluctuating battery input voltages. Maximum input voltage is 36V (nominal supply voltage range is 5V to 30V). Built-in protection features include undervoltage lockout, overvoltage protection, thermal shutdown, and overcurrent and short circuit protection.

"LEDs perform much better under cold temperatures than CCFLs, making them ideal for automotive systems such as instrument clusters, infotainment displays, and multifunction display systems that incorporate multiple functions like radio, navigation, and HVAC," says Youichi Kajiwara, Rohm automotive driver team manager.

Price for the driver, sampling now, is $5.00 each in sample quantities.

- Rick DeMeis
Automotive DesignLine

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