Offline Controllers | NCP12400

Fixed Frequency Current Mode Controller for Flyback Converters (Integrated HV Startup and X2 Discharge Circuit)

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Overview

The NCP12400 is a new fixed−frequency current−mode controller featuring the Dynamic Self−Supply. This function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal startup current source to supply the controller during start−up, transients, latch, stand−by etc. This device contains a special HV detector which detects the application unplug from the ac input line and triggers the X2 discharge current. This HV structure allows the brown−out detection as well. It features a timer−based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage. Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for the robust power supply designs. A dedicated Off Mode allows to reach the extremely low no load input power consumption via “sleeping” whole device and thus minimize the power consumption of the control circuitry. In addition, the NCP12400 features a quiet skip mode which lockes the skip frequency below audiable range. This feature greatly reduces audiable noise caused by the switching pulses during skip mode.

  • Auxiliary Power Supply for Computing Device
  • General 20 W to 65 W AC-DC Adapter

  • Offline Adapters for Notebooks, LCD, and Printers
  • Offline Battery Chargers
  • Consumer Electronic Power Supplies

  • Integrated HV Start-up and X2 Discharge
  • Quiet Skip Feature
  • Frequency Foldback and Skip Mode
  • Timer−Based Overload Protection with Latched Or Auto-recovery
  • Fault Input for Overvoltage and Over Temperature Protection
  • Adjustable Overpower Protection Dependant on the Mains Voltage
  • No Load Standby Power < 30 mW
  • Frequency Modulation for Softened EMI Signature

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NCP12400BAHAB0DR2G

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Obsolete

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CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

65

Yes

8.9

Yes

Yes

Yes

28

500 / 800

Price N/A

More Details

NCP12400BAHBB0DR2G

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Last Shipments

Similar Products
CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

65

Yes

8.9

Yes

Yes

Yes

28

500 / 800

Price N/A

More Details

NCP12400BBAAA0DR2G

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Last Shipments

Similar Products
CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

F

Flyback

Current Mode

65

Yes

8.9

Yes

Yes

Yes

28

500 / 800

Price N/A

More Details

NCP12400BBBBA0DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3333

More Details

NCP12400BBBBB2DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65/100

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3333

More Details

NCP12400BBEBA0DR2G

Loading...

Last Shipments

Similar Products
CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

Price N/A

More Details

NCP12400BBHAA1DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

100

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3333

More Details

NCP12400BBHAB0DR2G

Loading...

Last Shipments

Similar Products
CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

F

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

Price N/A

More Details

NCP12400CAHAB0DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

Yes

Yes

28

500 / 800

$0.3333

More Details

NCP12400CBAAB0DR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3499

More Details

NCP12400CBBAB0DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3333

More Details

NCP12400CBHAA0DR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

No

Yes

28

500 / 800

$0.3333

More Details

NCP12400EAHBB0DR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

65

Yes

8.9

Yes

Yes

Yes

28

500 / 800

$0.3333

More Details

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Reliability Data

Die Related Summary Data

Device: NCP12400BAHAB0DR2G

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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