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LD8108A
08/02/2016
AC/DC Speedy Charge™ Controller for
REV. 00
Qualcomm® Quick Charge 2.0 USB Interface
General Description
The LD8108A is an AC/DC Speedy Charge™ controller for Qualcomm® Quick Charge™ 2.0 (QC2.0) USB interface receiver for High Voltage Dedicated Charging Port (HVDCP) charger solution.
The device can receive QC2.0 signal from D+ and Dof USB interface for HVDCP control. Paired with LD5718A series primary-side regulation (PSR) controllers, LD8108A will send the digital data by a single photocouplier to PSR controller and change output regulation.
LD8108A provides typical 300mA discharging current for output from HVDCP voltage to 5V in order to meet a short discharge time. Active dummy load function is built in LD8108A to keep output regulation while in no load condition.