Offline Controllers | NCP1365

Low Power Offline Constant Current & Constant Voltage Primary Side PWM Current-Mode Controller with High Voltage Startup Current Source

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Overview

The NCP1365 offer a new solution targeting output power levels from a few watts up to 20 W in a universal-mains flyback application.Thanks to a novel method this new controller eliminates the need for a secondary feedback circuitry (typically an opto-coupler and TL431 reference) while achieving excellent line and load regulation.The NCP1365 operates in valley lockout quasi-resonant peak current mode control mode at high load to provide high efficiency. When the power on the secondary side starts to diminish, the controller automatically adjusts the duty-cycle then at lower load the controller enters in pulse frequency modulation at fixed peak current with a valley switching detection. This technique allows keeping the output regulation with tiny dummy load. Valley lockout at the first 4 valleys prevent valley jumping operation and then a valley switching at lower load provides high efficiency.

  • AC-DC USB chargers for cell phones, tablets, and other portable devices

  • AC-DC USB chargers for cell phones, tablets, and other portable devices

  • No frequency clamp, 80 or 110 kHz Maximum Switching Frequency
  • Quasi-Resonant with Valley Switching Operation
  • 560-V Startup Current Source
  • Fixed Peak Current & Deep frequency foldback @ light load operation
  • Cycle by Cycle peak current limit
  • Wide Operation VCC range (up to 28 V)
  • Internal Temperature Shutdown
  • CS & Vs/ZCD pin Short and Open Protection
  • Constant Current Primary-side feedback eliminates secondary controller
  • ±10% Current Regulation
  • Build-in soft-sart
  • Low Start-up current (2.5 μA typ.)
  • Clamped Gate-drive Output for Mosfet
  • Less than 10 mW No-Load Performance

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NCP1365AABCYDR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

N

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

Price N/A

More Details

NCP1365ACBAXDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

Yes

6.5

Yes

Yes

Yes

28

2000 / 1000

$0.3371

More Details

NCP1365BABCYDR2G

Loading...

Active

CAD Model

Pb

A

H

P

SOIC-7

751U

1

260

REEL

2500

Y

Flyback

Current Mode

Variable

No

6.5

Yes

Yes

Yes

28

2000 / 1000

$0.3371

More Details

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Reliability Data

Die Related Summary Data

Device: NCP1365AABCYDR2G

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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