This part is a kind of semiconductor called BD7683FJ-LB.

Function of this product has Low Noise Quasi-Resonant Control DC/DC converter IC.

Manufacturers : Rohm

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Datasheet Low Noise Quasi-Resonant Control DC/DC converter IC for AC/DC Converter BD7682FJ-LB BD7683FJ-LB BD7684FJ-LB BD7685FJ-LB General Description This is the product guarantees long time support in the Industrial market. BD768xFJ series is a Quasi-resonant controller type DC/DC converters that provide an optimum system for all products that include an electrical outlet. Quasi-resonant operation enables soft switching and helps to keep EMI low. Design with a high degree of flexibility is achieved with switching MOSFETs and current detection resistors as external devices. The built-in brown out function monitors the input voltage as part of system optimization. The burst mode function reduces input power at low power. BD768xFJ series include various protection functions, such as a soft [ ... ]

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