TPS25751AS datasheet(35/88 Pages) TI2

Part #	TPS25751AS

Description	TPS25751A USB Type-C® and USB PD Controller With Integrated Power Switches Optimized for DRP Power Applications

PDF	88 Pages

Scroll/Zoom	100%

Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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35 / 88 page

VOVP4VSYS = VOVP4RCP / rOVP

Power Path Supervisor

VOVP4RCP

Figure 8-14. Diagram for OVP Comparators

8.3.3.2.2 Reverse-Current Protection (RCP)

The VSYS gate control circuit monitors the PPHV and VBUS voltages and detects reverse current when the

VVSYS surpasses VVBUS by more than VRCP. When the reverse current condition is detected, GATE_VBUS is

disabled within tPPHV_RCP. When the reverse current condition is cleared, GATE_VBUS is re-enabled within

tPPHV_ON. This action limits the amount of reverse current that can flow from PPHV to VBUS through the external

N-ch MOSFETs. In reverse current protection mode, the power switch controlled by GATE_VBUS is allowed to

behave resistively until the current reaches VRCP/ RPPHV and then blocks reverse current from PPHV to VBUS.

-VRCP

1/RPPHV

VRCP/RPPHV

V=VVBUS ± VPPHV

Figure 8-15. Switch I-V Curve for RCP on Powerpath Switches

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TPS25751A

SLVSJG7 – MAY 2026

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TPS25751AS Datasheet(PDF) 35 Page - Texas Instruments