Power Factor Controllers | NCP1681

图腾柱连续导通模式（CCM）/多模式（CrM-CCM）功率因素校正控制器

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概览

NCP1681是一个PFC控制器IC，用于驱动无桥图腾柱PFC拓扑结构。无桥图腾柱PFC是一种功率因数校正结构，包括一个以PWM开关频率驱动的快速开关桥臂和一个以AC线频率工作的第二桥臂。这种拓扑结构消除了传统PFC电路输入端存在的二极管桥，使功率级的效率得到显著提高。这款控制器可以配置用于连续导通模式（CCM）或多模式（CrM-CCM）运行。

  • 功率因数校正
  • 离线式电源
  • 服务器电源
  • 电信5G电源
  • 网络电源
  • 游戏机电源
  • UHD电视电源
  • 工业电源
  • 图腾柱PFC拓扑结构消除了输入二极管电桥
  • 连续导通模式（CrM）可在高功率下运行
  • 可选多模型运行，高功率CCM模式，中等功率CrM
  • DCM中频率折返，最小频率为25kHz
  • 极轻负载下的Skip模式
  • 创新电流感应方案
  • 数字电压环路补偿
  • AC线路监测电路和AC相位检测
  • 所有工作模式下功率因数接近统一
  • PFC OK指示灯

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

PFC Mode

Frequency Operation

Control Mode

Topology

fSW Typ (kHz)

VCC Max (V)

Drive Cap. (mA)

UVLO (V)

Latch

UVP

Inhibition

Reference Price

NCP1681AAD2R2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC20 NB LESS PIN 17 & 19

751EZ

1

260

REEL

2500

Y

CCM

Fixed

Current/Voltage Mode

Totem Pole

65

30

100 / 100

10.5

Yes

Yes

No

$2.6399

More Details

NCP1681ABD2R2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC20 NB LESS PIN 17 & 19

751EZ

1

260

REEL

2500

F

CCM

Fixed

Current/Voltage Mode

Totem Pole

95

30

100 / 100

10.5

Yes

Yes

No

$2.6399

More Details

NCP1681BAD2R2G

Contact Sales

Active

CAD Model

Pb

A

H

P

SOIC20 NB LESS PIN 17 & 19

751EZ

1

260

REEL

2500

F

MM

Variable

Current/Voltage Mode

Totem Pole

65 / Variable

30

100 / 100

10.5

Yes

Yes

No

$2.6399

More Details

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