In case an external power supply is used, this voltage is used on TL6032 for the camera supply boost converter only. As described on page 3 of this document, external power can be input on J7. TL6032 allows to use an external power supply in case USB3 power of the used computer is not sufficient. This is in the sole responsibility of the user of TL6032. In case of notebook and laptop computers, IPCs and SBCs, it has to be checked case by case if USB3 output power is sufficient or not. However, many main boards used in desktop computer systems are able to provide more USB3 output power. USB3.0 is specified for 4.5W maximum output power per USB3.0 port on a computer. This circuit provides 9.55V DC (+/-3%) to the camera. Camera supply voltage is generated on TL6032 by a boost converter circuit.
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