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Texas Instruments TPS25741ARSMT
- Part No.:
- TPS25741ARSMT
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
TPS25741ARSMT.pdf
- Description:
- IC PD CTLR USB TYPE-C 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
TPS25741ARSMT from Texas Instruments is a USB Type-C™ and USB Power Delivery 2.0–compliant host port controller in a 32-pin VQFN (4.0 mm × 4.0 mm) package. It implements source-side PD negotiation, supports 5 V/12 V/20 V @ 3 A voltage profiles, integrates dual gate drivers (GDPG/GDNG), provides IEC 61000-4-2 ±8-kV contact ESD protection on CC pins, and delivers 5.4 µA quiescent current in unattached sleep mode - enabling robust, low-power USB-C host ports in desktops and docking stations.
For engineers reviewing the TPS25741ARSMT datasheet, TPS25741ARSMT pinout, TPS25741ARSMT application, or TPS25741ARSMT equivalent, this page delivers verified technical context, exact pin functions, real-world implementation constraints (e.g., CTL1/CTL2 for external DC-DC control, GDNG/G5V for NMOS power path), and validated alternative options - all grounded in TI's SLVSDJ5D revision D production data.
Technical Context
The TPS25741ARSMT operates as a full-featured USB-C DFP (Downstream Facing Port) controller with integrated PD protocol engine, CC line monitoring, and hardware-based voltage advertisement via HIPWR/PSEL/EN12V pins. It supports both power mux and DC-DC architectures: in power mux mode, GDPG, GDNG, GDNS, and G5V drive external MOSFETs; in DC-DC mode, only GDNG and CTL1/CTL2 interface with an external regulator.
Its protection suite includes fast/slow OVP/UVP on VBUS (e.g., 6.05 V fast OVP for 5 V contract), overtemperature shutdown, VBUS discharge via open-drain DSCG, and fault override via GD input. The device asserts UFP and POL outputs to indicate sink attachment and polarity, while DVDD supplies a regulated 1.85 V/35 mA rail for auxiliary circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB Power Delivery 2.0 certified provider; USB Type-C Rev 1.2 compliant source |
| Advertised Voltages | 5 V, 12 V, 20 V (TPS25741 variant); fixed by pin strapping, no firmware required |
| Max Output Power | 100 W (12 V @ 3 A or 20 V @ 3 A); configured via PSEL/HIPWR pin states |
| Quiescent Current | 5.4 µA at VDD = 3.3 V, unattached - enables always-on port detection without system load |
| CC Pin ESD Rating | ±8 kV contact discharge per IEC 61000-4-2 - eliminates need for external TVS diodes on CC lines |
| VBUS Discharge | Controlled via open-drain DSCG output; discharges VBUS through external resistor per USB PD spec |
| Gate Drivers | GDPG (PMOS high-side), GDNG/GDNS (NMOS high-side/source), G5V (NMOS low-side) - supports single-path or muxed power delivery |
Pinout & Package
TPS25741ARSMT uses a 32-pin VQFN package (RSM) with 4.00 mm × 4.00 mm body size and exposed thermal pad connected to GND/AGND plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1, CC2 | Configuration Channel I/O | Dual bidirectional PHY for USB-C plug detection, polarity sensing, and PD communication; includes ±8-kV IEC ESD protection |
| GDPG | PMOS Gate Driver Output | Open-drain high-voltage driver (0–30 V) for external high-side PMOS switch in power mux designs |
| GDNG, GDNS | NMOS Gate Driver Pair | GDNG drives NMOS gate; GDNS connects to NMOS source - enables high-side NMOS switching with level shift |
| G5V | NMOS Low-Side Gate Driver | Analog output driving NMOS gate directly; supports low-side VBUS switching in simple power path topologies |
| CTL1, CTL2 | DC-DC Regulator Control | Digital outputs (0/3.3 V) that program external buck converter voltage setpoint in DC-DC implementation mode |
| DSCG | VBUS Discharge Control | Open-drain output sinking up to 553 mA pulsed; used with external resistor to discharge VBUS within USB PD timing limits |
| UFP, POL | Attachment Status Indicators | UFP asserts low when sink detected on either CC pin; POL indicates which CC pin is active (CC1 or CC2) |
| EN12V | Voltage Advertisement Enable | Logic input: high enables 12 V PDO advertisement; low disables it - allows hardware-selectable PD profile |
Key Features
| Feature | Design Value |
|---|---|
| Pin-Selectable PD Profiles | 12 discrete power options (15 W to 100 W) set via HIPWR/PSEL strapping - no MCU or firmware needed |
| Integrated Safety Protection | Hardware-enforced OVP/UVP/OTP + VBUS discharge - eliminates reliance on software or external supervisors |
| Low-Power Unattached Mode | 5.4 µA supply current with CC pins floating - extends battery life in portable docks and always-on hosts |
| Built-in Auxiliary Power Rail | DVDD provides regulated 1.85 V @ 35 mA for microcontrollers, level shifters, or status LEDs - reduces BOM count |
| Flexible Power Architecture Support | Native support for both power mux (all gate drivers active) and DC-DC (CTL1/CTL2 control external regulator) implementations |
Applications
| Desktop & All-in-One PCs | USB-C Docking Stations |
|---|---|
|
Use Scenario: Mainboard-integrated USB-C upstream port delivering up to 100 W PD power and data to peripherals. IC Role / Device Role: DFP controller managing CC negotiation, VBUS sourcing, and fault-safe power path switching. Use Value: Enables native 20 V @ 3 A PD sourcing without external PD controller IC or firmware stack - reduces design complexity and certification effort. |
Use Scenario: Multi-port dock providing simultaneous USB 3.1 Gen 1 data, DisplayPort Alt Mode, and 60 W charging. IC Role / Device Role: Host port controller coordinating power allocation across downstream ports using UFP/POL status and PCTRL input. Use Value: Hardware-based peak power limiting (via PSEL/HIPWR) ensures compliance with thermal and adapter limits without host CPU intervention. |
| USB-PD Adaptors with Data | Industrial Embedded Hosts |
|
Use Scenario: Wall-mounted USB-C adaptor supporting both charging and USB 2.0 data passthrough to connected devices. IC Role / Device Role: Source controller implementing BC1.2 detection, PD negotiation, and VCONN power delivery for cable electronics. Use Value: Integrated VCONN regulation (via VCONN pin) and CC line biasing eliminate need for separate VCONN LDO and pull-up resistors. |
Use Scenario: Ruggedized medical or test equipment requiring reliable, low-power USB-C host connectivity in fanless enclosures. IC Role / Device Role: Robust port manager with hardware OVP/UVP, thermal shutdown, and 125°C junction rating for extended operation. Use Value: IEC 61000-4-2 ±8-kV contact ESD on CC pins ensures field reliability in electrostatic-prone environments without layout derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-C host port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65987D | Integrates full PD policy engine, ARM Cortex-M0+ MCU, and USB 3.1 Gen 2 support; requires firmware development and external crystal. | Supports dual-role port (DRP), programmable PDOs, and advanced features like SOP′ messaging - suited for adaptive, software-defined ports. | Select TPS65987D when firmware flexibility, DRP capability, or USB 3.1 Gen 2 data routing is required; TPS25741ARSMT is preferred for fixed-profile, low-BOM, hardware-only solutions. |
| FUSB302B | USB-C controller only (no PD protocol engine); requires external MCU for PD messaging and power state management. | Lacks integrated PD stack, gate drivers, and DVDD rail - mandates additional components for complete PD source implementation. | Choose FUSB302B only in MCU-rich systems where software handles PD negotiation; TPS25741ARSMT delivers turnkey PD sourcing with zero firmware dependency. |
Compared with TPS65987D and FUSB302B, the TPS25741ARSMT offers the lowest system-level BOM count and fastest time-to-market for fixed-voltage USB-C host ports, trading programmability for deterministic hardware control and guaranteed USB-IF certification out-of-box.
Availability
TPS25741ARSMT is available at Aetrix Electronics and suitable for desktop motherboards, USB-C docking stations, and PD-enabled wall adaptors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TPS25741ARSMT 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of USB and power management IP expertise.
The TPS25741ARSMT belongs to TI's USB Type-C and Power Delivery portfolio, designed specifically for hardware-based, certification-ready host port implementations in computing and peripheral equipment - prioritizing simplicity, safety, and USB-IF compliance over software configurability.
FAQ
What is the primary function of the TPS25741ARSMT in a USB-C system?
The TPS25741ARSMT serves as a USB-C Downstream Facing Port (DFP) controller that implements USB Power Delivery 2.0 source functionality. It handles CC line detection, PD message negotiation, VBUS voltage selection (5 V/12 V/20 V), gate driver control for external power switches, and built-in safety protections - enabling a complete, firmware-free USB-C host port. Its role is strictly hardware-defined and does not require embedded software execution.
Does the TPS25741ARSMT support USB-C audio accessory detection?
Yes, the TPS25741ARSMT supports audio accessory detection via its dedicated AUDIO pin (pin 28), which outputs low when an audio accessory is present on the USB-C port. This signal is generated internally based on CC line voltage thresholds and does not require external logic. The device also provides DEBUG (pin 15) for debug accessory detection, both operating independently of host processor involvement.
How does the TPS25741ARSMT manage VBUS discharge during disconnect events?
The TPS25741ARSMT manages VBUS discharge using its open-drain DSCG pin (pin 31), which sinks current through an external resistor to rapidly discharge the VBUS line per USB PD specification requirements. When a sink disconnects, the device asserts DSCG low, enabling discharge until VBUS falls below the UVP threshold. The required RDSCG value depends on maximum VBUS voltage (e.g., 80 Ω for 25 V systems) and is specified in TI's SLVSDJ5D datasheet.
Can the TPS25741ARSMT be used in both power mux and DC-DC power delivery architectures?
Yes, the TPS25741ARSMT supports both architectures. In power mux mode, GDPG, GDNG, GDNS, and G5V drive external MOSFETs to select between multiple input sources. In DC-DC mode, only GDNG is used to enable the primary power path, while CTL1 and CTL2 digitally control an external buck regulator to generate non-5-V PD voltages. The architecture is selected at design time via schematic configuration - no runtime reconfiguration is possible.
What is the purpose of the EN12V pin on the TPS25741ARSMT?
The EN12V pin (pin 10) is a digital input that enables or disables advertisement of the 12 V PDO in the TPS25741ARSMT's USB Power Delivery contract. When pulled high, the device advertises 12 V as an available voltage; when pulled low, 12 V is omitted from the PDO list. This pin allows hardware-level customization of the PD profile without modifying firmware or strapping other pins - critical for product variants targeting different regional adapter standards.
TPS25741ARSMT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 32-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Applications:
- USB, Type-C Controller
- Current - Supply:
- -
- Voltage - Supply:
- 4.65V ~ 25V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-VQFN (4x4)
TPS25741ARSMT FAQ
1.How can I place an order for TPS25741ARSMT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS25741ARSMT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TPS25741ARSMT reliable?
The price and inventory of TPS25741ARSMT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS25741ARSMT is usually 5 days.
3.What payment methods are accepted for TPS25741ARSMT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS25741ARSMT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS25741ARSMT?
TPS25741ARSMT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS25741ARSMT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TPS25741ARSMT?
For technical support, including TPS25741ARSMT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS25741ARSMT requirements.
6.How does Aetrix verify that TPS25741ARSMT is sourced from the original manufacturer or authorized distributors?
All TPS25741ARSMT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS25741ARSMT meets industry standards.
7.What is the process for return or replacement of TPS25741ARSMT?
All TPS25741ARSMT units undergo pre-shipment inspection (PSI). If there is an issue with TPS25741ARSMT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TPS25741ARSMT part is unused and in its original packaging.
Return procedure for TPS25741ARSMT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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