The Smart Bridge module offers and easy transition to LED backlighting for LCD screens. It uses the existing input power signals and converts the analog dimming signal used for the inverter into a PWM signal for the LED driver.
The Smart Bridge module enables the removal of the inverter and replacement of it with the footprint-compatible module by connecting the input cable from the existing power supply or controller to the module. The module converts the power, ground, and enable control signals. There are three versions of the module. The standard SBD4212F version has a smart bridge pass-through and integrated PWM dimming, and operates from a 12–V signal. The SBDCD4213F has a dc/dc converter with integrated PWM dimming and targets applications requiring a step-up conversion from 5 to 12-V. The SBDC4227F offers a dc/dc converter without dimming. (Range from $9 to $15/production qty — available now.)
By Paul O’Shea
Endicott Research Group , Endicott , NY
Information 800-215-5866
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