參數(shù)資料
型號(hào): FAN6921MLMY
廠商: Fairchild Semiconductor
文件頁(yè)數(shù): 1/23頁(yè)
文件大小: 1764K
描述: IC CTLR PFC/FLYBACK 16-SOICN
標(biāo)準(zhǔn)包裝: 2,500
模式: 臨界傳導(dǎo)(CRM)
電流 - 啟動(dòng): 10µA
電源電壓: 8.5 V ~ 25 V
工作溫度: -40°C ~ 105°C
安裝類型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC N
包裝: 帶卷 (TR)
February 2013
?2010 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN6921ML " Rev. 1.0.3
 
 
FAN6921ML
Integrated Critical Mode PFC/Quasi-Resonant
Current Mode PWM Controller
 
Features
?   Integrated PFC and Flyback Controller 
?   Critical Mode PFC Controller 
?   Zero-Current Detection for PFC Stage 
?   Quasi-Resonant Operation for PWM Stage 
?   Internal Minimum t
off
 8 祍 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?/SPAN>C) 
Applications
?   AC/DC NB Adapters 
?   Open-Frame SMPS 
?   Battery Charger 
 
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, V
DD
 pin OVP, and DET pin over-voltage for
output OVP, and brownin/out for AC input voltage
under-voltage protection (UVP).
The FAN6921ML controller is available in a 16-pin small
outline package (SOP).
 
Ordering Information
Part Number   OLP Mode
Operating
Temperature Range
Package
Packing
Method
FAN6921MLMY
Latch
-40癈 to +105癈
16-Pin Small Outline Package (SOP)
Tape & Reel
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