Secondary Side Controllers | NCP4355

Secondary Side Controller, SMPS Off Mode, for Low Standby Power Adapters

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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 controller by ONOFF current that flows through ONOFF optocoupler. The NCP4355 controls the primary controller with an Active ON signal, meaning that it only drives optocoupler current during ON mode to minimize consumption during OFF mode.

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NCP4355ADR2G

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

36

1.25

1.35E-4

-40

125

Price N/A

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NCP4355BDR2G

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Obsolete

Similar Products
CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

36

1.25

1.35E-4

-40

125

Price N/A

More Details

NCP4355CDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

Y

36

1.25

1.35E-4

-40

125

$0.2415

More Details

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Reliability Data

Die Related Summary Data

Device: NCP4355CDR2G

Equivalent to wafer fab process: ONC25

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

ONC25

1

2712519294

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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