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LA5735MC Folha de dados(PDF) 4 Page - ON Semiconductor |
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LA5735MC Folha de dados(HTML) 4 Page - ON Semiconductor |
4 / 6 page LA5735MC No.A2022-4/6 Protection Circuit Functional Descriptions 1. Overcurrent protection function The overcurrent protection function detects, on a pulse-by-pulse basis, the output transistor current and turns off that output transistor current if it exceeds 0.7A in a pulse-by-pulse manner. 2. Short circuit protection function This IC prevents the current from increasing when the outputs are shorted by setting the switching frequency to 15kHz if the VOS pin voltage falls below 0.8V. Note : At startup, since the switching frequency will be 15kHz while the VOS pin voltage is 0.8V or lower, the current capacity is reduced. If the load is applied at startup and the applications has trouble starting, increase the value of the inductor to resolve this problem. Timing Chart Limit current Inductor current SWOUT voltage 0V 0.8V 1.23V 30kHz 160kHz VIN voltage SWOUT voltage VOS voltage |
Nº de peça semelhante - LA5735MC |
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Descrição semelhante - LA5735MC |
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