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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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USB5806CT/KD датащи(PDF) 29 Page - Microchip Technology |
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USB5806CT/KD датащи(HTML) 29 Page - Microchip Technology |
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29 / 61 page  USB5806C DS00003173B-page 29 2019 - 2021 Microchip Technology Inc. 8.2 Battery Charging The device can be configured by an OEM to have any of the downstream ports support battery charging. The hub’s role in battery charging is to provide acknowledgment to a device’s query as to whether the hub system supports USB battery charging. The hub silicon does not provide any current or power FETs or any additional circuitry to actually charge the device. Those components must be provided externally by the OEM. If the OEM provides an external supply capable of supplying current per the battery charging specification, the hub can be configured to indicate the presence of such a supply from the device. This indication, via the PRT_CTL[6:1] pins, is on a per port basis. For example, the OEM can configure two ports to support battery charging through high current power FETs and leave the other two ports as standard USB ports. For additional information, refer to the Microchip USB5806C Battery Charging application note on the Microchip.com USB5806C product page www.microchip.com/USB5806C. FIGURE 8-2: UFP TYPE-C PORT WITH MICROCHIP UTC2000 & EXTERNAL MUX FIGURE 8-3: BATTERY CHARGING EXTERNAL POWER SUPPLY UTC2000 UFP Mode USB Type-C External Mux Upstream Port VBUS SSTXA+ SSTXA- SSRXA+ SSRXA- SSTXB+ SSTXB- SSRXB+ SSRXB- D+ D- CC1 CC2 CC1 CC2 CONNECTED# MUX VBUS_DET SSTX+ SSTX- SSRX+ SSRX- D+ D- C_ATTACH0 SSTXA+ SSTXA- SSRXA+ SSRXA- SSTXB+ SSTXB- SSRXB+ SSRXB- SSTX+ SSTX- SSRX+ SSRX- USB Type-C 3.3V PLUG_ ORIENTATION# A/B SOC VBUS[n] INT SCL SDA Microchip Hub DC Power |
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