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FAN7930 FAN7930C FAN7930B SOP-8 SMD

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10 in stock


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The FAN7930 is an active power factor correction (PFC)
controller for boost PFC applications that operate in
critical conduction mode (CRM). It uses a voltage-mode
PWM that compares an internal ramp signal with the
error amplifier output to generate a MOSFET turn-off
signal. Because the voltage-mode CRM PFC controller
does not need rectified AC line voltage information, it
saves the power loss of an input voltage sensing network
necessary for a current-mode CRM PFC controller.
FAN7930 provides over-voltage protection, open-
feedback protection, over-current protection, input-
voltage-absent detection, and under-voltage lockout
protection. The PFC-ready pin can be used to trigger
other power stages when PFC output voltage reaches
the proper level with hysteresis. The FAN7930 can be
disabled if the INV pin voltage is lower than 0.45V and
the operating current decreases to a very low level.
Using a new variable on-time control method, THD is
lower than the conventional CRM boost PFC ICs

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10 in stock

FAN7930 FAN7930C FAN7930B SOP-8 SMD
FAN7930 FAN7930C FAN7930B SOP-8 SMD

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