NCP4355 Secondary Side SMPS OFF Mode Controller for Low Standby Power Description The NCP4355 is a secondary side SMPS controller designed for use in applications which require extremely low no load power consumption.
The device is capable of detecting “no load” conditions and entering the power supply into a low consumption OFF mode.
During OFF mode, the primary side controller is turned off and energy is provided by the output capacitors thus eliminating the power consumption required to maintain regulation.
During OFF mode, the output voltage relaxes and is allowed to decrease to an adjustable level.
Once more energy is required, the NCP4355 automatically restarts the primary side contr...

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