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Offline Controllers | NCP1345

Highly integrated quasi-resonant flyback controller for off-line USB-PD and USB Type-C power converters.

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Overview

The NCP1345 is a highly integrated quasi-resonant flyback controller suitable for designing high-performance off-line USB-PD and USB Type-C power converters. The included dual-pin VCC architecture allows direct connection to the aux winding for simplified VCC management with a reduced parts count and increased performance.
The NCP1345 also features a precise, primary side based output current limiting circuit to ensure a constant output current limit regardless of programmed output voltage, or nameplate output power.

  • USB PD

  • Phone, Tablet, & Notebook Chargers
  • Aftermarket USB PD Multi-Port Chargers
  • USB C Enabled Wall Sockets

  • 150-V Wide Range Vcc Architecture
  • Auto-Tuning Skip
  • Rapid Frequency Foldback
  • Constant Output Current Limiting
  • SR Spike Reduction Circuitry (Adaptive Gate Drive)
  • Improved Frequency Jittering
  • 350 KHz high frequency QR
  • Internal 700 V Startup w X2 discharge

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Reference Price

NCP1345Q00D1R2G

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CAD Model

Pb

A

H

P

SOIC-9 NB

751BP

1

260

REEL

2500

F

Flyback

Current Mode

Variable

Yes

9

Yes

No

Yes

38

500 / 800

$0.66

More Details

NCP1345Q01D1R2G

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Active

CAD Model

Pb

A

H

P

SOIC-9 NB

751BP

1

260

REEL

2500

F

Flyback

Current Mode

Variable

Yes

9

Yes

No

Yes

38

500 / 800

$0.66

More Details

NCP1345Q02D1R2G

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Active

CAD Model

Pb

A

H

P

SOIC-9 NB

751BP

1

260

REEL

2500

F

Flyback

Current Mode

Variable

Yes

9

Yes

No

Yes

38

500 / 800

$0.66

More Details

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