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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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LM5166DRCT датащи(PDF) 24 Page - Texas Instruments |
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LM5166DRCT датащи(HTML) 24 Page - Texas Instruments |
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24 / 57 page  24 LM5166 SNVSA67B – DECEMBER 2016 – REVISED JUNE 2017 www.ti.com Product Folder Links: LM5166 Submit Documentation Feedback Copyright © 2016–2017, Texas Instruments Incorporated In case of an overload event such as an output short circuit, the clamping circuit discharges the soft-start capacitor. When the short is removed, the FB voltage quickly rises until it reaches the level of the SS pin. Then, the recovery continues under the soft-start capacitor control. Figure 50 and Figure 51 show short-circuit entry and recovery waveforms. Time Scale: 1 ms/Div CH2: VOUT, 2 V/Div CH4: IL, 200 mA/Div Figure 50. Short-Circuit Entry (Figure 52 Circuit) Time Scale: 1 ms/Div CH2: VOUT, 2 V/Div CH4: IL, 200 mA/Div Figure 51. Short-Circuit Recovery (Figure 52 Circuit) 7.3.10 Thermal Shutdown Thermal shutdown is a built-in self protection to limit junction temperature and prevent damage related to overheating. Thermal shutdown turns off the device when the junction temperature exceeds 170°C typically to prevent further power dissipation and temperature rise. Junction temperature decreases during thermal shutdown, and the LM5166 restarts when the junction temperature falls to 160°C. |
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