TPS25751AS datasheet(57/85 Pages) TI2

57 / 85 page

9.2.2.2 BC1.2 Application

The TPS25751A supports BC1.2 detection and advertisement modes and are configurable through the Web

Tool.

TPS25751A

USB Type-C

Connector

VBUS

GND

CCx/Vconn

GPIO4

GPIO5

DP_V

DM_V

CDP

Detect

USB2.0 MUX

GPIO

USB

Host

Figure 9-6. BC1.2 Application Block Diagram

9.2.2.3 USB Data Support

The TPS25751A supports USB data speed up to USB 3.2Gen 2. When entering USB enumeration, the

TPS25751A controls USB SuperSpeed Mux (TUSB1142) using GPIO controls. The GPIO control is configured

through using the Application Customization Tool, GPIO events are found in the Technical Reference Manual.

9.2.3 Application Curves

9.2.3.1 Liquid Detection Application Curves

The figures below show the liquid detection behavior with corrosion mitigation disabled and enabled. Liquid is

detected on both Liquid Detection Behavior - No Corrosion Mitigation and Liquid Detection Behavior - Corrosion

Mitigation on the SBU2 pin. The number of samples, timing, and hysteresis voltage range of liquid detection is

configurable through the Web Tool.

Figure 9-7. Liquid Detection Behavior - No Corrosion Mitigation

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TPS25751A

SLVSJG7 – MAY 2026

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TPS25751AS Datasheet(PDF) 57 Page - Texas Instruments