USB 전류 제한 스위치 - tc-associates.com

USB . : Hardik Patel( ). PC USB , .. USB USB . USB. USB .. USB .. USB USB USB. 500mA .. USB 50mA . USB . 500mA .. USB . USB .. USB .. IC USB .. USB .. II , USB (Recent Improvements in USB. current limit switch) KickStart (DLM) .. USB . USB . ( ). USB . Vbus 5V.. Gnd (MIC2004). D+ ( ). D- ( ). 1: USB USB . 1 USB USB USB .. USB (Vbus gnd) (D+ D-) .. USB .. ( : micrel MIC2004) . USB . MIC2004 USB.. MIC2004 .. USB . 2: . 2 . USB . MIC2004 Vin , Vout , Enable Gnd . Vout=Vin-(Ron*Iout) . Ron ON . MIC2004 70mOhm 500mA . USB . 500mA .. Iout =0mA . USB 500mA USB .. 1A . 3 USB .. USB . 500mA .. ( : . USB ) .. 3: USB 1 . Vout .. MIC2000 .. MIC2000 ( : MIC2005) . 4 MIC2005 . CSLEW .. 4: . 5 MIC2005 . Cload =10uF . Enable .. dV/dt . Channel 1 . Enable, Channel 2 Vout, Channel 4 Iout .. I=C*dV/dt dV/dt . Iout = 10uF*dV/dt =. 10uF*5V/730us = .. 50mA . CSLEW .. 6 Cslew MIC2005 .. 25mA . Cslew dV/dt .. =. 50mA. 5: Cslew , Cload = 10uF.. =. 25mA. 6: Cslew ( , Cload = 10uF).. 7 . Cload=940uF Cslew MIC2005.

사용됩니다. 전류 제한 스위치(예: Micrel MIC2004)는 호스트 시스템 전원 공급장치와 USB 장치 사이에 놓입니다.

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