USB 전류 제한 스위치 - tc-associates.com

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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.

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

  Micrel