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FAN7528FAIRCHILDN/a50avaiDual-Output, Critical Conduction Mode PFC Controller
FAN7528FAIRCHILN/a117avaiDual-Output, Critical Conduction Mode PFC Controller
FAN7528FSCN/a40000avaiDual-Output, Critical Conduction Mode PFC Controller


FAN7528 ,Dual-Output, Critical Conduction Mode PFC ControllerApplications tection, open-feedback protection, over-current protec-tion, and under-voltage lockout ..
FAN7528 ,Dual-Output, Critical Conduction Mode PFC Controllerapplications that operates in„ Dual Output Voltage Controlcritical conduction mode (CRM). It uses v ..
FAN7528 ,Dual-Output, Critical Conduction Mode PFC ControllerBlock Diagram 2.5V8 VVCC refRefUVLO VccInternalBiasDriveOUTDisable 712V 8.5VOutput160μs13VTimer5ZCD ..
FAN7529 ,Critical Conduction Mode PFC Controllerapplications that operates in crit-„ Precise Adjustable Output Over-Voltage Protectionical conducti ..
FAN7530 ,Critical Conduction Mode PFC ControllerApplicationslower than 0.45V and the operating current decreases to„ Adapter65µA. Using a new varia ..
FAN7532 ,Electronic Ballast Control ICApplications„ General Purpose Ballast IC1Ordering InformationPart Number Package Pb-Free Operating ..
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FAN7528
Dual-Output, Critical Conduction Mode PFC Controller
FAN7528 Dual-Output, Critical Conduction Mode PFC Controller February 2007 FAN7528 Dual-Output, Critical Conduction Mode PFC Controller Features Description „ Low Total Harmonic Distortion (THD) The FAN7528 is an active power factor correction (PFC) controller for boost PFC applications that operates in „ Dual Output Voltage Control critical conduction mode (CRM). It uses voltage mode „ Precise Adjustable Output Over-Voltage Protection PWM that compares an internal ramp signal with the „ Open-Feedback Protection and Disable Function error amplifier output to generate MOSFET turn-off sig- „ Zero Current Detector nal. Because the voltage mode CRM PFC controller does „ 160µs Internal Start-up Timer not need the rectified AC line voltage information, it can „ MOSFET Over-Current Protection save the power loss of the input voltage sensing network necessary for the current mode CRM PFC controller. „ Under-Voltage Lockout with 3.5V Hysteresis „ Low Start-up (40µA) and Operating Current (1.5mA) The FAN7528 provides the dual-output voltage control function without the AC line voltage sensing for adapter „ Totem-Pole Output with High State Clamp applications. It changes the PFC output voltage accord- „ ±400mA Peak Gate Drive Current ing to the AC line voltage. „ 8-Pin DIP or 8-Pin SOP It provides protection functions such as over-voltage pro- Applications tection, open-feedback protection, over-current protec- tion, and under-voltage lockout protection. The FAN7528 „ Adapter can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to 65µA. Using a Related Application Notes new variable on-time control method, THD is lower than „ AN-6012: Design of Power Factor Correction Circuit the conventional CRM boost PFC ICs. Using FAN7528 Ordering Information Operating Temp. Marking Part Number Range Pb-Free Package Packing Method Code FAN7528N -40°C to +125°C Yes 8-DIP Rail FAN7528 FAN7528M -40°C to +125°C Yes 8-SOP Rail FAN7528 FAN7528MX -40°C to +125°C Yes 8-SOP Tape & Reel FAN7528 © 2005 FAN7528 Rev. 1.0.6
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