FAN6921MLMY集成電路（IC）的PFC（功率因數(shù)校正）規(guī)格書PDF中文資料

FAN6921MLMY屬于集成電路（IC）的PFC（功率因數(shù)校正）。由安森美半導(dǎo)體公司制造生產(chǎn)的FAN6921MLMYPFC（功率因數(shù)校正）功率因數(shù)校正 (PFC) 是用于調(diào)整交流電路中的電壓和電流之間的相位角，使之趨近于零的半導(dǎo)體器件。不同模式包括平均電流、邊界導(dǎo)通、連續(xù)導(dǎo)通、臨界導(dǎo)通、電流控制式頻率折返、不連續(xù)和不連續(xù)導(dǎo)通，開關(guān)頻率從 6 kHz 至 1.7 MHz 可調(diào)。

Description

The highly integrated FAN6921ML combines a Power Factor

Correction (PFC) controller and a Quasi?Resonant PWM controller.

Integration provides cost effect design and allows for fewer external

components. For PFC, FAN6921ML uses a controlled on?time

technique to provide a regulated DC output voltage and to perform

natural power factor correction. With an innovative THD optimizer,

FAN6921ML can reduce input current distortion at zero?crossing

duration to improve THD performance.

For PWM, FAN6921ML enhances the power system performance

through valley detection, green?mode operation, and high / low line

over power compensation. FAN6921ML provides: secondary?side

open?loop and over?current protection, external latch triggering,

adjustable over?temperature protection by RT pin and external NTC

resistor, internal over?temperature shutdown, VDD pin OVP, and DET

pin over?voltage for output OVP, and brown?in/out for AC input

voltage under?voltage protection (UVP).

The FAN6921ML controller is available in a 16?pin small outline

package (SOP).

Features

? Integrated PFC and Flyback Controller

? Critical Mode PFC Controller

? Zero?Current Detection for PFC Stage

? Quasi?Resonant Operation for PWM Stage

? Internal Minimum tOFF 8 s for QR PWM Stage

? Internal 10 ms Soft?Start for PWM

? Brownout Protection

? H/L Line Over?Power Compensation (OPC)

? Latched Protection (FB Pin)

? Over?Power/ Overload Protection

? Short?Circuit Protection

? Open?Loop Protection

? Externally Latch Triggering (RT Pin)

? Adjustable Over?Temperature Latched (RT Pin)

? VDD Pin & Output Voltage OVP (Latched)

? Internal Temperature Shutdown (140°C)

? This is a Pb?Free Device

Applications

? AC/DC NB Adapters

? Open?Frame SMPS

? Battery Charger