位置:FAN480X > FAN480X详情

FAN480X中文资料

厂家型号

FAN480X

文件大小

620.41Kbytes

页面数量

17

功能描述

PFCPWM Combination Controller

PFC+PWM Combination Controller

数据手册

下载地址一下载地址二到原厂下载

生产厂商

FAIRCHILD

FAN480X数据手册规格书PDF详情

Introduction

This application note describes step-by-step design considerations for a power supply using the FAN480X controller. The FAN480X combines a PFC controller and a PWM controller. The PFC controller employs average current mode control for Continuous Conduction Mode (CCM) boost converter in the front end. The PWM controller can be used in either current mode or voltage mode for the downstream converter. In voltage mode, feed-forward from the PFC output bus can be used to improve the line transient response of PWM stage. In either mode, the PWM stage uses conventional trailingedge duty cycle modulation, while the PFC uses leadingedge modulation. This proprietary leading/trailing-edge modulation technique can significantly reduce the ripple current of the PFC output capacitor.

The synchronization of the PWM with the PFC simplifies the PWM compensation due to the controlled ripple on the PFC output capacitor (the PWM input capacitor). In addition to power factor correction, a number of protection features have been built in to the FAN480X. These include programmable soft-start, PFC over-voltage protection, pulse-by-pulse current limiting, brownout protection, and under-voltage lockout.

FAN480X产品属性

  • 类型

    描述

  • 型号

    FAN480X

  • 制造商

    FAIRCHILD

  • 制造商全称

    Fairchild Semiconductor

  • 功能描述

    PFC+PWM Combination Controller

更新时间:2025-10-13 16:30:00
供应商 型号 品牌 批号 封装 库存 备注 价格
FAIRCHILD
24+
SOP16
180
FAIRCHILD
05+
原厂原装
4989
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FAIRCHILD
22+
SOP-16
8200
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FAIRCHILD
25+
SOP16
3200
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FAIRCHILD
06+
SOP16
2000
一级代理,专注军工、汽车、医疗、工业、新能源、电力
FAIRCHILD
2025+
SOP16
3720
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FAIRCHILD
2023+
SOP16
50000
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FAIRCHILD
NEW
SOP-16
9526
代理全系列销售,全新原装正品,价格优势,长期供应,量大可订
FAIRCHILD/仙童
2450+
SOP16
8850
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FAIRCHILD/仙童
24+
NA/
3262
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