FAN480X中文资料仙童半导体数据手册PDF规格书
FAN480X规格书详情
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.
产品属性
- 型号:
FAN480X
- 制造商:
FAIRCHILD
- 制造商全称:
Fairchild Semiconductor
- 功能描述:
PFC+PWM Combination Controller
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
FAIRCHILD |
05+ |
原厂原装 |
4989 |
只做全新原装真实现货供应 |
询价 | ||
FAIRCHILD |
23+ |
SOP16 |
8000 |
全新原装现货,欢迎来电咨询 |
询价 | ||
FAIRCHILD/仙童 |
24+ |
SOP3.9 |
283 |
大批量供应优势库存热卖 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
NA/ |
3262 |
原装现货,当天可交货,原型号开票 |
询价 | ||
FAIRCHILD |
1836+ |
SOP16 |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
FAIRCHILD/仙童 |
22+ |
SOP-16 |
24075 |
原装现货假一赔十 |
询价 | ||
FAIRCHILD |
23+ |
SOP-16 |
9526 |
询价 | |||
FAIRCHILD/仙童 |
23+ |
SOP-16 |
3000 |
一级代理原厂VIP渠道,专注军工、汽车、医疗、工业、 |
询价 | ||
FAIRCHILD/仙童 |
23+ |
SOP16 |
50000 |
全新原装正品现货,支持订货 |
询价 | ||
FAIRCHILD/仙童 |
2021+ |
SOP-16 |
100500 |
一级代理专营品牌!原装正品,优势现货,长期排单到货 |
询价 |