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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LTC7000 датащи(PDF) 21 Page - Linear Technology |
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LTC7000 датащи(HTML) 21 Page - Linear Technology |
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21 / 28 page  LTC7000/LTC7000-1 21 7000fa For more information www.linear.com/LTC7000 applicaTions inForMaTion PC Board Layout Considerations 1. Solder the exposed pad on the backside of the LTC7000/ LTC7000-1 packages directly to the ground plane of the board. 2. Kelvin connect current sense resistor. 3. Limit the resistance of the TS trace, by making it short and wide. 4. CB needs to be close to chip. 5. Always include an option in the PC board layout to place a resistor in series with the gate of any exter- nal MOSFET. High frequency oscillations are design dependent and having the option to add a series damp- ening resistor can save a design iteration of the PC board. Pin Creepage and Clearance In some higher voltage applications, the MSE16 package may not provide sufficient PC board trace clearance between high and low voltage pins. In applications where clearance is required, the LTC7000-1 in the MSE16(12) package can be used. The MSE16(12) package has removed pins between all the adjacent high voltage and low voltage pins, providing 0.657mm clearance, which will be sufficient for most applications. For more information, refer to the printed circuit board design standards described in IPC-2221 (www.ipc.org). |
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