R2A20111DD 查看數據表（PDF） - Renesas Electronics

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R2A20111DD

Power Factor Correction Controller IC

Renesas Electronics 

R2A20111SP/DD

EO Pin:

This pin is the output of the voltage amplifier. This pin is connected to the phase-compensation circuit of the voltage

amplifier.

SS Pin:

This pin is connected to GND or VREF via a capacitor. This pin is pulled up to the voltage on the VREF pin until PFC

operation starts. When the voltage on the PFC-ON pin has reached 0.82 V (typ.), PFC operation starts and this pin

flows 25 μA source current. Operation of the CAO pin is affected by that of the SS pin, the pulse width of the OUT pin

is limited, and this prevents overshooting when start up.

VCC Pin:

This pin is for the IC power supply. The IC starts up at 10.5 V (typ.), and stops at 9 V (typ.).

REJ03F0231-0100 Rev.1.00 Mar 28, 2007

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