BD7684FJ-LB

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 start function, burst function, per-cycle over-current limiter function, overvoltage protection function, overload protection function, and brown out function. BD768xFJ series include a gate-clamp circuit for optimal driving SIC-MOSFET. Features  Pin 8 : SOP-J8 Package (6.00mm × 4.90mm : 1.27mm pitch )  Quasi-resonant type (low EMI)  Frequency reduction mode  Low current consumption (19µA), during standby  Low current consumption when no load (burst operation when light load)  Maximum frequency (120kHz)  CS Pin Leading-Edge Blanking  VCC UVLO (Under Voltage Drop Out protection)  VCC OVP (Over Voltage Protection)  Per-cycle over-current protection circuit  Soft start  ZT tri...