01 / 01The SD1523 is a USB dedicated charging port controller.Can be applied to in-vehicle chargers, AC-DC power adapters with USB ports, and other USB charging devices.The SD1523 has the feature of automatic detection, which enables fast charging of compatible portable devices connected to it by monitoring changes in the voltage on the D + and D-, loading the correct identifiable signals on the DP and DM in a timely manner.Supported portable devices include: smartphones, 5V charging tablets and personal media players. SD1523 supports the following five most commonly used charging protocols: · Partial voltage 3 (2.7V and 2.7V applied on D + and D- lines, respectively) · BC1.2 protocol, USB battery charging technical specification 1.2 revision · China Telecom Industry Standard YD/T 1591-2009 · Apply 1.2V voltage on both D + and D-
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