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STUSB4700 数据表(PDF) 22 Page - STMicroelectronics |
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STUSB4700 数据表(HTML) 22 Page - STMicroelectronics |
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22 / 32 page ![]() Typical use cases STUSB4700 22/32 DocID030193 Rev 2 7.2 Power supply – flyback topology The STUSB4700 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 7: Flyback topology Table 17: Resistor value PDO VOUT Resistor Resistor value (Ω) – – R4 200 k – – R5 13.2 k 5 20 RGP3 0 4 15 RGP2 5.36 k 3 12 RGP1 12.1 k 2 9 RGP0 29.4 k 1 5 R6 53.7 k |
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