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UPSRB03 Folha de dados(PDF) 6 Page - Unisonic Technologies |
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UPSRB03 Folha de dados(HTML) 6 Page - Unisonic Technologies |
6 / 7 page UPSRB03 Preliminary LINEAR INTEGRATED CIRCUIT UNISONIC TECHNOLOGIES CO., LTD 6 of 7 www.unisonic.com.tw QW-R129-020.a OPERAT I ON DESCRI PT I ON (Cont .) Drive BJT The driver is a push pull stage with the supply voltage VDD. It provides the driving current for the external power bipolar transistor. The output signal is current-limited to IOUT(SOURCE). Protection Control Good power supply system reliability is achieved with its comprehensive protection features including output over-voltage protection, VDD over voltage protection, feedback loop open protection, Cycle-by-cycle current limiting, short circuit protection, leading edge blanking and UVLO, etc. VDD is supplied by transformer auxiliary winding output. The output of UTC UPSRB03 is shutdown when VDD drops below VTH(OFF) and the power converter enters power on start-up sequence thereafter. |
Nº de peça semelhante - UPSRB03 |
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Descrição semelhante - UPSRB03 |
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