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SABRE-LL-I Folha de dados(PDF) 46 Page - STMicroelectronics

Nome de Peças SABRE-LL-I
Descrição Electrónicos  Combo motor driver
PDF  141 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SABRE-LL-I Folha de dados(HTML) 46 Page - STMicroelectronics

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Switching regulator controller
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some constraints in the application and particularly by choosing the correct feedback
reference voltage as indicated in the following table:
Typical application can be considered the following, supposing the external mosfet type
STD12NF06L:
–
Max DC current load = 3A
–
Typ Over current threshold = 3A * 1.5 = 4.5A
–
L = 150 µH
–
C = 220-330 µF
In this conditions the step-down regulator will result over-load protected, short-circuit
protected over all the regulated voltage range and the VSupply range.
Other application configurations could be evaluated before being implemented.
Table 26.
Switching regulator controller application feedback reference
Output regulated voltage range
Feedback voltage reference
0.8V
≤ V
out < 5V
0.8V - 1V
5V
≤ V
out ≤ 32V
2.5V - 3V



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