单级功率因数校正控制器

Obsolete

概览

NCP1651 是一款有源功率因数校正控制器,可基于通用输入范围 (85 VAC- 265 VAC),在 50/60 Hz 电源系统中运行。它提供低成本、组件数量少的方案,用于具有中高输出电压要求的 AC-DC 转换器,简化了 50W - 250W 范围转换器对于 IEC1000-3-2 谐波要求的满足。NCP1651 为固定频率控制器, 驱动反激转换器拓扑结构以连续/非连续模式运行。它对平均输入电流进行编程,以遵循线路电压,从而提供统一的功率因数。NCP1651 使用平均电流模式控制 CCM 算法,有助于提供卓越的功率因数,同时限制了峰值主电流。其固定频率运行简化了输入滤波器设计。NCP1651 使用专属乘法器设计,比传统模拟乘法器的运行更准确。

  • High Current Battery Chargers
  • Front Ends for Distributed Power Systems

  • Fixed Frequency Operation
  • Average Current Mode PWM
  • Internal High Voltage Start-Up Circuit
  • Continuous or Discontinuous Mode Operation
  • High Accuracy Multiplier
  • Overtemperature Shutdown
  • External Shutdown
  • Undervoltage Lockout
  • Low Cost/Parts Count Solution
  • Ramp Compensation Does Not Affect Oscillator Accuracy

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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

NCP1651DR2G

CAD Model

Pb

A

H

P

SOIC-16

1

260

REEL

2500

N

DCM

Fixed

Current Mode

Step-Up

25 - 250

18

1500 / 1500

9.8 - 10.8

No

Yes

Yes

Price N/A

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