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Power Factor Controllers | FAN6961

Power Factor Controller (PFC), CrCM

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Overview

The FAN6961 is an 8-pin, boundary-mode, power factor correction controller intended for controlling PFC pre-regulators. The FAN6961 provides a controlled on-time to regulate the output DC voltage and achieve natural power factor correction. The maximum on-time of the external switch is programmable to ensure safe operation during AC brownouts. An innovative multi-vector error amplifier is built in to provide rapid transient response and precise output voltage clamping. A built-in circuit disables the controller if the output feedback loop is opened. The startup current is lower than 20 µA and the operating current has been reduced to under 6 mA. The supply voltage can be up to 25 V, maximizing application flexibility.

  • AC-DC Merchant Power Supply
  • Boundary Mode PFC Controller
  • Low Input Current THD
  • Controlled On-Time PWM
  • Zero-Current Detection
  • Cycle-by-Cycle Current Limiting
  • Leading-Edge Blanking instead of RC Filtering
  • Low Startup Current: 10 µA Typical
  • Low Operating Current: 4.5 mA Typical
  • Feedback Open-Loop Protection
  • Programmable Maximum On-Time (MOT)
  • Output Over-Voltage Clamping Protection
  • Clamped Gate Output Voltage 16.5 V

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PFC Mode

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FAN6961SY

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751EB

1

260

REEL

2500

N

CrCM/BCM

Variable

Voltage Mode

Step-Up

Variable

30

450 / 900

12.5

No

Yes

No

Price N/A

More Details

FAN6961SZ

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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751EB

1

260

REEL

2500

N

CrCM/BCM

Variable

Voltage Mode

Step-Up

Variable

30

450 / 900

12.5

No

Yes

No

Price N/A

More Details

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