поискавой системы для электроныых деталей |
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UC3800G-S08-R датащи(PDF) 8 Page - Unisonic Technologies |
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UC3800G-S08-R датащи(HTML) 8 Page - Unisonic Technologies |
8 / 10 page UC3800 Preliminary LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 8 of 10 www.unisonic.com.tw QW-R103-083.a OPERATION DESCRIPTION (Cont.) Protection Controls The IC takes on more protection functions such as OVP, OLP and OTP etc. In case of those failure modes for continual blanking time, the driver is shut down. Driver is reset after failure is eliminated. OVP The OVP will shut down the switching of the power MOSFET whenever VDD >VOVP. The OVP event as followed Fig.3. Fig.3 OVP case Fig.4 OLP case OLP OLP will shut down driver when VFB> VOLP for continual time. The OLP event as followed Fig.4. LNO-OVP and BNO LNO will shut down driver when LNO> VTH_LNO or LNO<VTH_BNO for continual time. OTP The internal OTP circuit is implemented to detect the Temperature. As soon as the Temperature is higher than the 145 C, the driver will shut down. PCB Layout Note Noise from the current sense or the control signal can cause significant pulse width jitter in continuous-conduction mode, and slope compensation helps alleviate these problems. Good placement and layout practices should be followed. Avoiding long PCB traces and component leads, locating compensation and filter components near the UTC UC3800, and increasing the power MOS gate resistance is advised. |
Аналогичный номер детали - UC3800G-S08-R |
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Аналогичное описание - UC3800G-S08-R |
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