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UC3823 датащи(PDF) 4 Page - Texas Instruments |
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UC3823 датащи(HTML) 4 Page - Texas Instruments |
4 / 7 page UC1823 PRINTED CIRCUIT BOARD LAYOUT CONSIDERATIONS High speed circuits demand careful attention to layout and component placement. To assure proper perform- ance of the UC1823, follow these rules. 1) Use a ground plane. 2) Damp or clamp parasitic inductive kick energy from the gate of driven MOSFET. Don’t allow the output pins to ring below ground. A series gate resistor or a shunt 1 Amp Schottky diode at the output pin will serve this purpose. 3) Bypass VCC, VC, and VREF. Use 0.1 µF monolithic ceramic capacitors with low equivalent series inductance. Allow less than 1 cm of total lead length for each capacitor between the bypassed pin and the ground plane. 4) Treat the timing capacitor, CT, like a bypass ca- pacitor. UC1823 UC2823 UC3823 ERROR AMPLIFIER CIRCUIT PWM APPLICATIONS Simplified Schematic Unity Gain Slew Rate Open Loop Frequency Response Conventional (Voltage Mode) Current-Mode * A small filter may be required to suppress switch 4 |
Аналогичный номер детали - UC3823 |
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Аналогичное описание - UC3823 |
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