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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CS5161GD16 датащи(PDF) 15 Page - ON Semiconductor |
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CS5161GD16 датащи(HTML) 15 Page - ON Semiconductor |
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15 / 18 page  CS5161, CS5161H http://onsemi.com 15 Layout Guidelines 1. Place 12 V filter capacitor next to the IC and connect capacitor ground to pin 11 (PGnd). 2. Connect pin 11 (PGnd) with a separate trace to the ground terminals of the 5.0 V input capacitors. 3. Place fast feedback filter capacitor next to pin 8 (VFFB) and connect it’s ground terminal with a separate, wide trace directly to pin 14 (LGnd). 4. Connect the ground terminals of the Compensation capacitor directly to the ground of the fast feedback filter capacitor to prevent common mode noise from effecting the PWM comparator. 5. Place the output filter capacitor(s) as close to the load as possible and connect the ground terminal to pin 14 (LGnd). 6. Connect the VFB pin directly to the load with a separate trace (remote sense). 7. Place 5.0 V input capacitors close to the switching MOSFET and synchronous MOSFET. Route gate drive signals VGATE(H) (pin 10) and VGATE(L) (pin 12 when used) with traces that are a minimum of 0.025 inches wide. Figure 23. Layout Guidelines To the negative terminal of the output capacitors VCC 100 pF 0.1 μF SOFT START OFF TIME VCOMP To the negative terminal of the input capacitors 15 11 5 8 VFFB 1.0 μF |
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