FAN7530N
FAN7530N Datasheet
FAN7530 Critical Conduction Mode PFC Controller
| Part | Datasheet |
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FAN7530N |
FAN7530N (pdf) |
| Related Parts | Information |
|---|---|
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FAN7530M |
FAN7530M |
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FAN7530MX |
FAN7530MX |
| PDF Datasheet Preview |
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| FAN7530 Critical Conduction Mode PFC Controller FAN7530 Critical Conduction Mode PFC Controller April 2007 - Low Total Harmonic Distortion THD - Precise Adjustable Output Over-Voltage Protection - Open-Feedback Protection and Disable Function - Zero Current Detector - 150µs Internal Start-up Timer - MOSFET Over-Current Protection - Under-Voltage Lockout with 3.5V Hysteresis - Low Start-up 40µA and Operating Current 1.5mA - Totem Pole Output with High State Clamp - +500/-800mA Peak Gate Drive Current - 8-pin DIP or 8-pin SOP - Adapter - Ballast - LCD TV, CRT TV - SMPS Related Application Notes - AN-6027 - Design of Power Factor Correction Circuit Using FAN7530 The FAN7530 is an active power factor correction PFC controller for the boost PFC applications that operates in critical conduction mode CRM . It uses the voltage mode PWM that compares an internal ramp signal with the error amplifier output to generate MOSFET turn-off signal. Because the voltage mode CRM PFC controller does not need the rectified AC line voltage information, it can save the power loss of the input voltage sensing network necessary for the current mode CRM PFC controller. FAN7530 provides many protection functions such as over voltage protection, open-feedback protection, overcurrent protection, and under-voltage lockout protection. The FAN7530 can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to 65µA. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs. Ordering Information Part Number FAN7530N FAN7530M FAN7530MX Operating Temp. Range -40°C to +125°C -40°C to +125°C -40°C to +125°C Pb-Free Yes Package 8-DIP 8-SOP 8-SOP Packing Method Rail Tape & Reel Marking Code FAN7530 FAN7530 Critical Conduction Mode PFC Controller Typical Application Diagrams VAUX NAUX RZCD I2 R2 ZCD FAN7530 CS I1 COMP Figure Typical Boost PFC Application Internal Block Diagram VCC 8 UVLO 12V 8.5V Disable ZCD 5 6.7V 1.4V 1.5V Zero Current Detector 2.5V Ref Vref1 Internal Bias 150ms Timer Drive Output 7 OUT OVP 2.675V 2.5V CS 4 MOT 2 40k 8pF 0.8V Current Protection Comparator Ramp Signal Saw Tooth Generator 1V Offset Disable 0.45V 0.35V Error |
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