Combo Power Factor Correction + Half Bridge Controller

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Overview

Housed in a SO-24WB package, the NCP1910 combines a state-of-the-art circuitry aimed to powering next generation of ATX or flat TVs converters. With a 65 kHz Continuous Conduction Mode Power Factor Controller and a LLC controller hosting a high-voltage driver, the NCP1910 is ready to power 85+ types of offline power supplies. To satisfy stringent efficiency considerations, the PFC circuit implements an adjustable frequency fold back to reduce switching losses as the load is going light. To cope with all the signal sequencing required by the ATX and flat TVs specifications, the controller includes several dedicated pins enabling handshake between the secondary and the primary sides. These signals include a power-good line but also a control pin which turns the controller on and off via an opto coupler. Safety-wise, a second OVP input offers the necessary redundancy in case the main feedback network would drift away. Finally, a fast fault input immediately reacts in presence of an over current condition by triggering an auto-recovery soft-start sequence.

  • Flat panel display powr converters
  • High power ac-dc adpaters for notebooks
  • Computing power supplies
  • ATX or Server power supplies
  • LCD or Plasma TVs
  • PFC frequency fold back
  • LLC Skip
  • Dynamic Response enhancers
  • Adjustable Line Brown-Out Protection
  • On/off and power Good Management Signam
  • Redundant Vbulk Over Voltage Protection

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CAD Models

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Control Mode

fsw Typ (kHz)

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UVLO (V)

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Latch

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Reference Price

NCP1910A100DWR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-24

3

260

REEL

1000

N

Half-Bridge

Current Mode

Up to 500

Yes

9/10.4

Yes

Yes

Yes

20

500 / 1000

Price N/A

More Details

NCP1910A65DWR2G

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Obsolete

CAD Model

Pb

A

H

P

SOIC-24

3

260

REEL

1000

N

Half-Bridge

Current Mode

Up to 500

Yes

9/10.4

Yes

Yes

Yes

20

500 / 1000

Price N/A

More Details

NCP1910B100DWR2G

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Last Shipments

CAD Model

Pb

A

H

P

SOIC-24

3

260

REEL

1000

N

Half-Bridge

Current Mode

Up to 500

Yes

9/10.4

Yes

Yes

Yes

20

500 / 1000

Price N/A

More Details

NCP1910B65DWR2G

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Active

CAD Model

Pb

A

H

P

SOIC-24

3

260

REEL

1000

Y

Half-Bridge

Current Mode

Up to 500

Yes

9/10.4

Yes

Yes

Yes

20

500 / 1000

$1.5729

More Details

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