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Texas Instruments TPS25740BRGET
- Part No.:
- TPS25740BRGET
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS25740BRGET.pdf
- Description:
- USB TYPE-C AND USB PD SOURCE CO
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
TPS25740BRGET from Texas Instruments is a USB Power Delivery 2.0–certified (TID# 1030004) and PD 3.0–compliant source controller for USB Type-C™ applications. It implements full PD negotiation, voltage advertisement (5/9/12/15 V or 5/9/15/20 V), peak power selection (18–100 W), and controls external N-channel MOSFETs via GDNG/GDNS gate drivers. It operates from 4.65 V to 25 V input and draws only 8.5 µA quiescent current when unattached - enabling energy-efficient USB-PD adaptors and power banks.
For engineers reviewing the TPS25740BRGET datasheet, TPS25740BRGET pinout, TPS25740BRGET application, or TPS25740BRGET equivalent, this page delivers verified technical context, real-world timing behavior (e.g., tCC = 1 ms, tVP = 190 ms), safety-critical protection thresholds (FOVP: 6.05–23.05 V), and precise pin-level interface roles - all validated against TI's SLVSDR6C production datasheet (Rev. C, March 2018).
Technical Context
The TPS25740BRGET integrates a complete USB PD 2.0/3.0 source stack with hardware-based state machine - eliminating need for firmware or external microcontroller. Its CC1/CC2 transceivers support Rp/Rd detection, VBUS monitoring, and PD message transmission using built-in timing (tUI = 3.3 µs, tHR = 30 ms), while CTL1–CTL3 digital outputs directly control external DC/DC regulators per negotiated voltage contract.
Protection is implemented at silicon level: fast OVP (30 µs response), OCP (15 µs deglitch), dual OTSD thresholds (TJ1 = 135 °C, TJ2 = 150 °C), IEC 61000-4-2 ±8 kV contact ESD on CC pins, and VBUS discharge via open-drain DSCG. Gate driver outputs GDNG/GDNS are optimized for NMOS high-side switching with 12 V sourcing capability and <5 µs turnoff delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB PD Compliance | PD 2.0 certified (TID# 1030004) and PD 3.0 compliant provider - enables interoperable 5–20 V, up to 100 W power delivery without host firmware. |
| Voltage Advertisement | PIN-selectable: Option 1 = 5/9/12/15 V; Option 2 = 5/9/15/20 V - sets fixed PDO list before connection, no runtime reconfiguration. |
| Peak Power Range | 18 W to 100 W via PSEL pin (4-state resistor encoding) - supports USB-PD CLA, adaptor, and power bank designs with scalable output capability. |
| Quiescent Current | 8.5 µA @ VPWR = 5 V, unattached - meets Energy Star and EU CoC Tier 2 standby power requirements for wall adapters. |
| VBUS Discharge | DSCG open-drain output with 553 mA pulsed sink (typ.) - discharges VBUS to safe voltage (<1 V) in <1 s using external R, critical for USB Type-C safety compliance. |
| Gate Driver Output | GDNG/GDNS drive external NMOS: 12 V sourcing (typ.), 300 Ω sinking strength when disabled - eliminates need for costly P-ch MOSFET and level-shifting circuitry. |
| OVP Response Time | 30 µs fast-OVP reaction (tFOVP) - prevents overvoltage damage during transient events like load dump or regulator fault. |
Pinout & Package
TPS25740BRGET is housed in a thermally enhanced 24-pin VQFN package (4.00 mm × 4.00 mm, 0.5 mm pitch) with exposed thermal pad connected to GND/AGND plane for 10 °C/W junction-to-board thermal resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CC1 / CC2 | USB Type-C configuration channel I/O | Bi-directional PD communication interface with integrated Rp pull-up (64–356 µA selectable), Rd detection, and ±8 kV IEC 61000-4-2 ESD protection. |
| GDNG / GDNS | NMOS gate driver outputs | High-voltage open-drain outputs: GDNG drives gate, GDNS connects to source - enables direct control of high-side NMOS VBUS switch without bootstrap circuit. |
| CTL1 / CTL2 / CTL3 | Digital voltage select outputs | Active-high logic outputs that set external DC/DC regulator output (e.g., 5 V, 9 V, 12 V, 20 V) per negotiated PD contract - timing tSTL = 260 ms ensures stable PS_RDY signaling. |
| PCTRL | Dynamic power control input | Analog threshold input (VTH = 1.75 V typ.): pulling low reduces advertised power by 50% - enables real-time port power management in multi-port systems. |
| DSCG | VBUS discharge control | Open-drain output driving external bleeder resistor - activates during fault or detach to discharge VBUS below safety limit (e.g., <1 V in <500 ms with 80 Ω). |
| ISNS | Current sense input | High-side VBUS-referenced input monitoring shunt voltage (trip = 22.6 mV typ. for 3 A); enables OCP with 15 µs deglitch filter and 30 µs large-signal response. |
| HIPWR / PSEL | Hardware configuration inputs | 4-state resistor-programmable pins: HIPWR selects voltage set (5/9/12/15 V vs. 5/9/15/20 V); PSEL selects max power (18–100 W) - eliminates configuration EEPROM or MCU dependency. |
Key Features
| Feature | Design Value |
|---|---|
| Firmware-free PD implementation | Hardware state machine handles full PD negotiation, messaging, and contract enforcement - reduces BOM cost and design cycle time versus MCU-based solutions. |
| Integrated safety protections | On-die OVP (fast/slow), OCP, OTSD (dual-threshold), UVLO, VBUS discharge, and IEC 61000-4-2 ESD - eliminates discrete protection ICs and saves >3 mm² PCB area. |
| NMOS gate driver architecture | GDNG/GDNS outputs drive high-side NMOS with 12 V sourcing and <5 µs turnoff - avoids expensive P-ch devices and associated level shifters in 20 V+ designs. |
| Ultra-low standby power | 8.5 µA supply current (VPWR = 5 V, unattached) - enables passivity in battery-powered power banks and meets DOE Level VI efficiency requirements. |
| Port attachment indicator | DVDD provides regulated 1.85 V / 35 mA rail that asserts within 5 ms of sink attach - allows system-level power gating of auxiliary circuits to cut idle losses. |
Applications
| USB-PD Wall Adaptor | Dedicated Charging Port (DCP) |
|---|---|
|
Use Scenario: Compact 65 W AC/DC adapter for laptops and tablets with single USB-C port. IC Role / Device Role / Timing Role: Full PD source controller managing voltage negotiation (5–20 V), current limiting (up to 3.25 A), and NMOS VBUS switch control via GDNG/GDNS. Use Value: Eliminates firmware development; achieves <30 mW no-load power via 8.5 µA quiescent current and DVDD-triggered auxiliary rail shutdown. |
Use Scenario: Automotive cigarette lighter adaptor delivering 15 W (5 V/3 A) to smartphones without data transfer. IC Role / Device Role / Timing Role: Data-less PD source implementing fixed PDO advertisement (5 V/3 A), CC pin polarity detection, and fast OVP (30 µs) for 12 V automotive transients. Use Value: Meets ISO 7637-2 pulse 5a immunity via integrated 25 V absolute max rating on VBUS/VPWR and robust 40 V GDNG rating. |
| Multi-Port Power Hub | USB-C Power Bank |
|
Use Scenario: Dual-port desktop hub providing simultaneous 45 W + 18 W PD output with independent voltage control. IC Role / Device Role / Timing Role: Self-directed port power manager using PCTRL to dynamically reduce advertised power on one port when both sinks request full capacity. Use Value: Prevents overloading shared input stage via hardware-based power capping - no software arbitration required. |
Use Scenario: Portable 20,000 mAh power bank with USB-C input/output supporting 100 W PD charging. IC Role / Device Role / Timing Role: Source controller handling 20 V/5 A negotiation, VBUS discharge (DSCG) upon disconnect, and OTSD shutdown (TJ1 = 135 °C) during high-current boost conversion. Use Value: Enables safe 100 W operation with integrated thermal protection and <1 s VBUS discharge - satisfies UL 62368-1 touch-safe requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB PD source controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS65987D | USB PD 3.0 + PPS compliant; integrates buck-boost converter; requires firmware configuration via I²C; 32-pin VQFN. | Supports programmable power supply (PPS) and variable voltage; targets high-end laptop docks requiring dynamic voltage adjustment. | Choose TPS65987D only if PPS or integrated power stage is required; TPS25740BRGET offers lower cost and zero-firmware simplicity for fixed-voltage applications. |
| STUSB4500 | USB PD 2.0 compliant (not certified); no integrated VBUS discharge; 20-pin TSSOP; supports only 5/9/15/20 V PDOs. | Lacks PD 2.0 certification, IEC ESD rating, and hardware OVP/OCP - requires external protection components for safety-critical designs. | Select STUSB4500 only for cost-sensitive, non-certified consumer accessories where full safety compliance is not mandated. |
Compared with TPS65987D and STUSB4500, the TPS25740BRGET uniquely combines USB PD 2.0 certification, hardware-only operation, integrated VBUS discharge, and NMOS gate drivers - making it optimal for certified, firmware-free, cost-sensitive USB-C power delivery in adaptors, CLAs, and power banks.
Availability
TPS25740BRGET is available at Aetrix Electronics and suitable for USB-PD wall adaptors, dedicated charging ports, and portable power banks requiring stable component supply, full USB-IF certification traceability, and long-term industrial lifecycle support.
Supply support for TPS25740BRGET 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 over 50 years of innovation in power management and interface ICs.
The TPS25740B product line was designed specifically to enable certified, firmware-free USB Power Delivery source implementations in compact, cost-sensitive power adapters and mobile accessories - reducing time-to-market and system complexity.
FAQ
What USB Power Delivery standards does the TPS25740BRGET support?
The TPS25740BRGET is USB PD 2.0 certified (TID# 1030004) and USB PD 3.0 compliant as a source controller. It implements full PD messaging, hard reset handling, and source capabilities advertisement per USB PD specification Rev. 3.0. It does not support Programmable Power Supply (PPS) or extended messages beyond base PD 2.0/3.0 source functionality. The TPS25740BRGET operates strictly as a fixed PDO source - no firmware or host intervention is required for standard PD negotiation.
How does the TPS25740BRGET control external power stages without firmware?
The TPS25740BRGET uses three dedicated digital outputs - CTL1, CTL2, and CTL3 - to directly assert binary-coded voltage select signals to external DC/DC controllers (e.g., TPS40170, LM5170). After successful PD negotiation, it asserts the appropriate combination within 260 ms (tSTL) to configure the power stage for the agreed voltage (e.g., CTL1=H/CTL2=L/CTL3=H for 12 V). This hardware-driven control eliminates need for MCU firmware, reducing BOM count and qualification effort for the TPS25740BRGET-based design.
What is the role of the GDNG and GDNS pins on the TPS25740BRGET?
GDNG and GDNS are complementary high-voltage gate driver outputs on the TPS25740BRGET designed specifically to drive the gate and source terminals of an external N-channel MOSFET used as the high-side VBUS switch. GDNG sources up to 12 V (typ.) to turn on the NMOS; GDNS sinks current to maintain proper source reference. This architecture avoids level-shifters or P-channel devices - enabling efficient, low-cost 20 V+ VBUS switching. The TPS25740BRGET disables GDNG within 30 µs during OVP/OCP faults.
Does the TPS25740BRGET include VBUS discharge functionality, and how is it implemented?
Yes, the TPS25740BRGET includes integrated VBUS discharge via the open-drain DSCG pin. When activated (e.g., during fault or detach), DSCG sinks up to 553 mA (typ.) through an external resistor to discharge VBUS to <1 V within ~500 ms (depending on RDSCG and capacitance). The TPS25740BRGET specifies RDSCG values: 80 Ω for 25 V max VBUS, 43 Ω for 15 V, and 20 Ω for 6 V. This meets USB Type-C safety requirements and eliminates need for discrete discharge FETs.
What are the key thermal protection features of the TPS25740BRGET?
The TPS25740BRGET incorporates two independent thermal shutdown thresholds: TJ1 = 135 °C (typ.) triggers hard reset transmission and disables GDNG, while TJ2 = 150 °C (typ.) shuts down DVDD and VAUX rails entirely. Both thresholds include 10 °C hysteresis. These are analog die-temperature sensors - not silicon diode readings - ensuring accurate thermal response under real operating conditions. The TPS25740BRGET's 10 °C/W RθJB enables effective PCB thermal management via its exposed thermal pad.
TPS25740BRGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-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:
- 24-VQFN (4x4)
TPS25740BRGET FAQ
1.How can I place an order for TPS25740BRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS25740BRGET 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 TPS25740BRGET reliable?
The price and inventory of TPS25740BRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS25740BRGET is usually 5 days.
3.What payment methods are accepted for TPS25740BRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS25740BRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS25740BRGET?
TPS25740BRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS25740BRGET 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 TPS25740BRGET?
For technical support, including TPS25740BRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS25740BRGET requirements.
6.How does Aetrix verify that TPS25740BRGET is sourced from the original manufacturer or authorized distributors?
All TPS25740BRGET 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 TPS25740BRGET meets industry standards.
7.What is the process for return or replacement of TPS25740BRGET?
All TPS25740BRGET units undergo pre-shipment inspection (PSI). If there is an issue with TPS25740BRGET, 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 TPS25740BRGET part is unused and in its original packaging.
Return procedure for TPS25740BRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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