FA5540 Fuji Electric holdings CO.,Ltd, FA5540 Datasheet - Page 26

• Manufacturer Part Number: FA5540
• Description: Fuji Switching Power Supply Control Ic
• Manufacturer: Fuji Electric holdings CO.,Ltd

(5) Miscellaneous
Rev.0 July-2007
・Vcc is always observed and if it exceeds 16V (FA5540) / 28V (FA5541/42), it is shutdown. This condition is
・ By pull-upping ZCD pin voltage higher than 7.2V from outside, shutdown is carried out like the case of the
・Auto restart by overload protection
maintained until Vcc drops to UVLO off-threshold voltage by interrupting its input voltage.
If Vcc is provided by other power supply, it latches and stops.
overload voltage and this condition is maintained.
FA5540/5541/5542
26
Fuji Electric Device Technology