ZHCSMU5A July 2020 – December 2020 TPS25814
PRODUCTION DATA
The TPS25814 is a Type-C DFP controller that supports all Type-C DFP required functions. The TPS25814 Only applies power to VBUS when it detects that a UFP is attached and removes power when it detects the UFP is detached. The device exposes its identity via its CC pin advertising its current capability based on the CHG_HI pin settings. The TPS25814 also limits its advertised current internally and provides robust protection to a fault on the system VBUS power rail.
After a connection is established by the TPS25814, the device is capable of providing VCONN to power circuits in the cable plug on the CC pin that is not connected to the CC wire in the cable. VCONN is internally current limited and is supplied by PP5V.
The TPS25814 is also capable of supporting BC 1.2 compliant charging schemes of a Charging Data Port (CDP) and a Dedicated Charging Port (DCP). The CTL pin changes which charging modes are activated to the connected portable device.
The following design procedure can be used to implement a full featured Type-C DFP.