Transcription of PCB Layout Guidelines for Power Controllers
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PCB Layout Guidelines for Power Controllers
(MAN) : Thesupplyofsufficientcurrenttotheload. Noiseimmunityfortheloadandsensecircuits. , , , , : 1oz/sqfootcopper( ). 10 Criseonouterlayers,20 Cinnerlayers Groupsofhighcurrenttracksarede-rated " " " " " ,eachdoublingofcopperthicknessallowsanin creaseofsqrt(2)( ) , , , , , , , Frequency IMPEDANCEvsFREQUENCY10 , spatterntoall0 ResistorTo Inner Layer PowerLoad ConnectionMOSFET1nFVccGnd10nFBulk10 nFVCCBULK1 nF10 nFBULKTo LoadTo Power t/ V;whereIisthesurgecurrent, Visthevoltagedropthatcanbetolerated,and , , October2005 IMPORTANT NOTICET exas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications,enhancements, improvements, and other changes to its products and services at any time and to discontinueany product or service without notice. Customers should obtain the latest relevant information before placingorders and should verify that such information is current and complete.
www .ti.com 2.3 Vias or Feedthrus 2.4 Sense Resistor Wiring Description From Table 1, each doubling of copper thickness allows an increase of sqrt(2) (about 1.4) in the current
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