Offline Controllers | NCP1336

Controller, Quasi-Resonant, Current Mode, with HV Start-Up

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Overview

The NCP1336 hosts a high-performance circuitry aimed to powering quasi-resonant converters. Capitalizing on a novel valley-lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain-source valley. This system works down to the 4th valley and toggles to a variable frequency mode beyond, ensuring an excellent standby power performance.
The controller takes benefit of a high-voltage start-up current source to provide a quick and lossless power-on sequence. To improve the safety in overload situations, the controller includes an Over Power Protection circuit which clamps the delivered power at high-line. Safety-wise, an adjustable timer relies on the feedback voltage to detect a fault. On version B, this fault triggers a triple-hiccup on the VCC pin which naturally reduces the average input power drawn by the converter. On version A, when a fault is detected, the controller is latched-off.
Particularly well suited for adapter applications, the controller features two latch inputs: one dedicated to Over Temperature protection (OTP) which offers an easy means to connect a pull-down temperature sensor like an NTC, and a second one more classical that can be used ot performa an accurate Over voltage Protection.
Finally, a brownout pin whcih stops the circuit operation in presence of a low mains condition is included.

  • High Power Ac-Dc converters

  • Notebook Adapters
  • Flat TV SMPS

  • Valley Switching Operation with Valley-Lockout
  • Loss-free Adjustable Over Power Protection
  • Auto-recovery or Latched Short-Circuit Protection with adjustable timer
  • Dedicated Overtemperature Protection Input
  • Brown Out Protection
  • High voltage startup current source

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NCP1336ADR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-14 NB

751AN

1

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

9 - 15

Yes

Yes

Yes

28

500 / 800

Price N/A

More Details

NCP1336BDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-14 NB

751AN

1

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

9 - 15

Yes

Yes

Yes

28

500 / 800

$0.4378

More Details

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Reliability Data

Die Related Summary Data

Device: NCP1336ADR2G

Equivalent to wafer fab process: VHVIC

Product Technology

Product Technology

Equivalent Device-Hours

MTBF/MTTF in Hours

FITS

VHVIC

2

2577173853

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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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