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L6982 Folha de dados(PDF) 20 Page - STMicroelectronics

Nome de Peças L6982
Descrição Electrónicos  38 V, 2 A synchronous step-down converter with low quiescent current
PDF  48 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6982 Folha de dados(HTML) 20 Page - STMicroelectronics

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Figure below shows the L6982 soft-start procedure with VOUT shorted to GND.
Figure 21. Soft-start procedure with VOUT shorted to GND
Figure below shows the L6982 over current protection with a persistent short-circuit between VOUT and GND.
Figure 22. Over current procedure with persistent short circuit between VOUT and GND
6.7
Thermal shutdown
The shutdown block disables the switching activity if the junction temperature is higher than a fixed internal
threshold (TSHDWN refer to Table 6). The thermal sensing element is close to the power elements, ensuring fast
and accurate temperature detection. A hysteresis of approximately 30 °C prevents the device from turning ON
and OFF too fast. After a thermal protection event is expired the L6982 restarts with a new soft-start.
L6982
Thermal shutdown
DS13683 - Rev 1
page 20/48



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