Texas Instruments TPS25810RVCR

Overview

TPS25810RVCR from Texas Instruments is a USB Type-C Downstream Facing Port (DFP) controller with integrated 3-A power switch, supporting VBUS sourcing, VCONN application to electronically marked cables, and CC-line-based accessory identification (audio/debug). It features dual current-limit settings (1.7 A / 3.4 A), 34-mΩ high-side MOSFET, and load-detection output (LD_DET) for multi-port power management in notebook docking stations.

For engineers reviewing the TPS25810RVCR datasheet, TPS25810RVCR pinout, TPS25810RVCR application, or TPS25810RVCR equivalent, key selection considerations include its USB Type-C Rev. 1.2 compliance, three-supply architecture (IN1/IN2/AUX), 0.7-µA quiescent current in unattached state, and thermal shutdown at 155°C - all critical for sleep-charging host port designs requiring low-power wake capability and robust cable-handling logic.

Technical Context

The TPS25810RVCR implements full USB Type-C Rev. 1.2 DFP functionality without USB Power Delivery (PD) negotiation: it detects UFP attachment via Rd termination on CC1/CC2, advertises STD/1.5-A/3-A sourcing capability using Rp values, determines plug polarity (POL output), and applies VCONN to Ra-marked cables. Its dual-switch architecture separates VBUS (IN1→OUT) and VCONN (IN2→CC1/CC2) paths, each with independent current limiting and thermal protection.

Power management is enabled through AUX-supplied operation in S4/S5 system states, where UFP output disables the main 5-V rail while the device remains active on 3.3-V auxiliary supply. Load detection (LD_DET) triggers at 1.95 A nominal and provides hysteresis (125 mA), enabling dynamic current allocation across multiple Type-C ports sharing limited total power budget.

Key Specifications

Pinout & Package

TPS25810RVCR is housed in a thermally enhanced 20-pin WQFN package (3.0 mm × 4.0 mm) with exposed thermal pad for PCB heat dissipation. The package supports JEDEC-standard reflow and meets UL File No. E169910 safety listing.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar USB Type-C DFP controller applications.

Compared with TPS65987D and FUSB302B, the TPS25810RVCR delivers optimal balance of integration, low quiescent current, and USB Type-C Rev. 1.2 compliance for fixed 5-V host ports - eliminating external switches while retaining essential accessory detection and load-coordination logic not found in basic CC controllers.

Availability

TPS25810RVCR is available at Aetrix Electronics and suitable for USB-C notebook sleep charging, multi-port docking stations, and Type-C wall chargers requiring stable component supply, long-term lifecycle support, and production-ready qualification.

Supply support for TPS25810RVCR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company specializing in analog, embedded processing, and connectivity solutions, with leadership in power management and interface ICs.

The TPS25810RVCR belongs to TI's USB Type-C port controller product line, designed specifically for cost-sensitive, fixed-voltage DFP applications in consumer and computing systems where full USB PD complexity is unnecessary.

FAQ

What is the primary function of the TPS25810RVCR in a USB-C system?

The TPS25810RVCR serves as a complete USB Type-C Downstream Facing Port (DFP) controller with integrated power switch. It detects UFP attachment via CC-line Rd termination, advertises current capability (STD/1.5-A/3-A), applies VBUS and VCONN power, identifies audio/debug accessories, and manages load detection for multi-port power coordination - all without requiring USB Power Delivery negotiation.

How does the TPS25810RVCR support low-power system states like S4/S5?

The TPS25810RVCR supports low-power system states by operating from the AUX supply (2.9–5.5 V) while main rails (IN1/IN2) are disabled. In this mode, it maintains CC-line monitoring and UFP detection with only 0.7 µA quiescent current, enabling wake-on-attach functionality during hibernation or soft-off states - a core capability for notebook sleep charging applications.

What are the current limit options for the VBUS power switch in the TPS25810RVCR?

The TPS25810RVCR offers two factory-programmed current limit options for its VBUS power switch: 1.7 A ±7.1% and 3.4 A ±7.1%. These are selected using the CHG and CHG_HI logic inputs per the USB Type-C specification, allowing alignment with receptacle capabilities (e.g., USB 2.0 vs USB 3.1) and preventing overcurrent in downstream devices.

Does the TPS25810RVCR provide protection against overtemperature or overcurrent conditions?

Yes, the TPS25810RVCR includes comprehensive protection: overcurrent shutdown triggers within 1.5–4 µs of short-circuit detection, and thermal shutdown activates at 155°C (rising threshold) with 20°C hysteresis. Both conditions assert the open-drain FAULT output, allowing system-level fault handling and recovery - ensuring robust operation in thermally constrained enclosures.

Can the TPS25810RVCR identify USB-C audio accessories, and how is this signaled?

Yes, the TPS25810RVCR identifies USB-C analog audio accessories by detecting Ra termination on both CC1 and CC2 lines. When recognized, it asserts the open-drain AUDIO output, which can be pulled up to a microcontroller GPIO to trigger driver loading or system notification - enabling plug-and-play audio dongle support without enumeration delays.