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STUSB4710 数据表(PDF) 21 Page - STMicroelectronics

部件名 STUSB4710
功能描述  Autonomous USB PD controller with integrated discharge path
PDF  34 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STUSB4710 数据表(HTML) 21 Page - STMicroelectronics

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STUSB4710
Typical use cases
DocID030499 Rev 4
21/34
7.3
Power supply
– flyback topology
The STUSB4710 offers the possibility to have up to 5 PDOs using GPIO0 to GPIO3.
For example PDO1 ( 5 V; 3 A) (no Sel_PDO grounded), PDO2 (9 V; 3 A) (GPIO0 to GND),
PDO3 (15 V; 3 A) (GPIO1 to GND).
Figure 9: Flyback topology
Table 13: Resistor value
PDO
VOUT
Computation
Resistor value
(Ω)
-
-
R1
100 k
4
15
����3 =
����1∙1.24
����������������−1.24
8k87
3
12
����4 =
����1 ∙ 1.24
���������������� − 1.24
− ����3
2k49
2
9
����5 =
����1 ∙ 1.24
���������������� − 1.24
− ����3 − ����4
4k42
1
5
����6 =
����1 ∙ 1.22
���������������� − 1.22
− ����2 − ����3 − ����4 − ����5
16k2



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