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Texas Instruments TPS2541ARTER
- Part No.:
- TPS2541ARTER
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS2541ARTER.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,439
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Product details
Overview
TPS2541ARTER from Texas Instruments is a USB charging port power switch and controller integrating a 73-mΩ high-side N-channel MOSFET, 2.6-GHz USB 2.0 data-line switch, and BC1.2/CDP/SDP/Divider Mode charging identification logic. It delivers up to 2.5 A continuous output current with adjustable current limiting (via ILIM0/ILIM1 resistors), supports Apple® sleep-mode charging, and operates from 4.5 V to 5.5 V input. It is used in notebook PCs and intelligent USB host devices for compliant, high-bandwidth charging and data pass-through.
For engineers reviewing the TPS2541ARTER datasheet, TPS2541ARTER pinout, TPS2541ARTER application, or TPS2541ARTER equivalent, key selection criteria include its dual-role USB power/data switching capability, programmable current limit (up to 2.8 A typ.), fault-deglitched open-drain FAULT output, DSC-controlled OUT discharge, and QFN-16 RTE package thermal performance.
Technical Context
The TPS2541ARTER implements a fully integrated USB charging port controller with three distinct functional blocks: a current-limited power switch (73-mΩ RDS(on), 2.5-A max), a high-fidelity 2.6-GHz analog D+/D− switch (≤6.2 pF on-state capacitance, ≤0.15 Ω match), and a digital charge-mode state machine controlled via CTL1–CTL3 logic inputs. Its DSC pin enables active discharge of the OUT capacitor upon disable - a feature distinguishing it from the EN-based TPS2540 series.
It supports four standardized USB charging modes: Dedicated Charging Port (DCP) per BC1.2, Charging Downstream Port (CDP), Standard Downstream Port (SDP), and Apple Divider Mode - each requiring specific DP/DM voltage sourcing and impedance profiles (e.g., 2.0 V DP, 2.7 V DM in Divider Mode; 125 Ω short in DCP). Auto-detect logic eliminates external microcontroller dependency for basic mode selection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 5.5 V - ensures compatibility with regulated USB VBUS rails and avoids UVLO shutdown during transient dips. |
| Max Continuous Output Current | 2.5 A - supports fast-charging applications including tablets and peripherals requiring >1.5-A CDP compliance. |
| RDS(on) (typ.) | 73 mΩ - minimizes conduction loss (<180 mW at 1.5 A), reducing thermal stress in compact layouts. |
| Data Switch Bandwidth | 2.6 GHz - preserves USB 2.0 high-speed eye diagram integrity with <0.25 ns propagation delay and <0.2 ns skew. |
| Current Limit Adjustment | Configurable via two external resistors (ILIM0/ILIM1) and ILIM_SEL logic - enables precise 55 mA to 3.1 A thresholds without firmware. |
| FAULT Response Time | 5–12 ms deglitch - prevents false triggering from brief transients while ensuring timely overcurrent protection. |
| Thermal Shutdown Threshold | 155 °C - safeguards against sustained overload or poor PCB heatsinking; 10 °C hysteresis prevents oscillation. |
Pinout & Package
The TPS2541ARTER is housed in a 16-pin QFN package (RTE) with an exposed thermal die pad. The package measures 3.0 mm × 4.0 mm × 0.9 mm and requires soldering the exposed pad to a dedicated GND plane for optimal thermal performance (θJCbot = 3.9 °C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Power input | Accepts 4.5–5.5 V VBUS; requires local 0.1-µF ceramic decoupling to GND for stability. |
| OUT (Pin 12) | Switched power output | Delivers current-limited VBUS to downstream USB connector; supports active discharge via DSC. |
| DSC (Pin 5) | Output discharge control | Active-low logic input: low → discharges OUT capacitor through internal 400–630 Ω path. |
| FAULT (Pin 13) | Fault reporting | Open-drain output asserted low during overcurrent or overtemperature; requires 10-kΩ pull-up for clean logic interface. |
| CTL1–CTL3 (Pins 6–8) | Charging mode selection | 3-bit logic inputs defining DCP/CDP/SDP/Divider Mode; truth table differs from TPS2540 series. |
| ILIM0 / ILIM1 (Pins 16 / 15) | Current limit setting | Analog inputs tied to external resistors (16.9 kΩ–750 kΩ); select threshold based on ILIM_SEL state. |
| DP_IN / DM_IN (Pins 10 / 11) | Upstream D+/D− | Connect to USB host controller; support bidirectional high-speed signaling with <6.2 pF capacitance. |
| DP_OUT / DM_OUT (Pins 3 / 2) | Downstream D+/D− | Connect to USB device port; maintain signal integrity via matched 2–6 Ω on-resistance and <0.15 Ω channel match. |
Key Features
| Feature | Design Value |
|---|---|
| BC1.2 & YD/T 1591-2009 Compliance | Hardware-enforced DCP handshake (shorted D+/D−) and CDP detection (voltage source on DM_IN) eliminate MCU firmware overhead. |
| Apple® Sleep-Mode Charging Support | Programmable Divider Mode outputs 2.0 V on DP_IN and 2.7 V on DM_IN - directly compatible with iPod/iPhone legacy charging. |
| High-Fidelity Data Path | 2.6-GHz bandwidth, 52 dB on-state isolation, and <0.25 ns tpd preserve USB 2.0 eye margin across full temperature range (-40°C to 125°C). |
| Robust Fault Management | De-glitched FAULT output with 5–12 ms filtering and thermal shutdown at 155 °C prevent nuisance trips while ensuring system safety. |
| Flexible Current Limiting | Dual resistor-based threshold selection (ILIM0/ILIM1 + ILIM_SEL) allows dynamic reconfiguration between low-power (e.g., 55 mA SDP) and high-current (e.g., 2.8 A DCP) use cases. |
Applications
| USB Notebook Charging Hub | Universal Wall Adapter Controller |
|---|---|
Use Scenario: A 15-W laptop dock provides simultaneous USB data transfer and 2.4-A charging to connected peripherals via a single upstream port. IC Role / Device Role / Timing Role: TPS2541ARTER acts as the intelligent VBUS switch and charger ID engine - enabling CDP mode for data+charging and auto-detecting attached devices without host CPU intervention. Use Value: Eliminates need for separate USB transceivers and charging ICs; reduces BOM count by integrating power switch, data switch, and BC1.2 logic in one 3×4-mm QFN. | Use Scenario: A multi-port wall charger dynamically adapts output current (500 mA to 2.4 A) based on attached device type (phone, tablet, headset). IC Role / Device Role / Timing Role: TPS2541ARTER serves as the front-end USB port controller - identifying device class via DP/DM voltage profiling and enforcing appropriate current limits before enabling VBUS. Use Value: Enables single-hardware design supporting global standards (BC1.2, YD/T 1591, Apple Divider) - avoiding regional SKU proliferation. |
| Industrial USB Host Terminal | Automotive Infotainment USB Port |
Use Scenario: A factory-floor HMI terminal must safely charge ruggedized tablets while maintaining full USB 2.0 data throughput for firmware updates. IC Role / Device Role / Timing Role: TPS2541ARTER functions as a protected, high-bandwidth USB repeater - isolating host controller from cable faults and sustaining 480-Mbps signaling under ESD stress. Use Value: Withstands ±2-kV HBM ESD on all I/O pins and maintains <0.15 Ω D+/D− resistance match - ensuring reliable enumeration and zero packet loss. | Use Scenario: An automotive head unit supplies power and data to smartphones via USB, requiring robust thermal management and fault containment in high-ambient environments. IC Role / Device Role / Timing Role: TPS2541ARTER operates as the thermally managed USB port interface - using its exposed thermal pad and 155 °C shutdown to survive under-dash temperatures up to 105 °C ambient. Use Value: Junction-to-board thermal resistance of 17.2 °C/W enables stable 2-A operation without external heatsink - critical for space-constrained automotive modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2541ARTVT | Same silicon, 3-mm × 3-mm VQFN package (no exposed thermal pad); higher θJA (63.4 °C/W vs. 53.4 °C/W). | Suitable for lower-power (≤1.5 A) or space-constrained designs where thermal pad routing is impractical. | Select TPS2541ARTVT only when board layout cannot accommodate the exposed pad of RTE; derate current by ~20% at 85 °C ambient. |
| TPS2540ARTER | Functionally identical except EN pin replaces DSC; no active OUT discharge - relies on external circuitry or natural decay. | Preferred where output discharge is unnecessary or handled externally; shares same pinout and firmware interface. | Choose TPS2540ARTER if OUT discharge timing is non-critical; otherwise TPS2541ARTER provides guaranteed, controlled discharge via DSC. |
Compared with TPS2541ARTVT and TPS2540ARTER, the TPS2541ARTER uniquely combines the lowest thermal resistance (53.4 °C/W), integrated DSC-controlled discharge, and full BC1.2/CDP/SDP/Divider Mode support - making it optimal for thermally demanding, high-reliability USB host ports.
Availability
TPS2541ARTER is available at Aetrix Electronics and suitable for USB notebook charging hubs, universal wall adapter controllers, and industrial USB host terminals requiring stable component supply, long-term lifecycle support, and compliance with BC1.2, YD/T 1591-2009, and Apple® charging specifications.
Supply support for TPS2541ARTER 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 technologies with over 90 years of innovation in power management and interface solutions.
The TPS254x family is designed specifically for intelligent USB host applications - integrating power switching, high-speed data routing, and multi-standard charging identification into a single monolithic IC to simplify USB-C-adjacent and legacy USB 2.0 port design.
FAQ
What is the primary function of the TPS2541ARTER in a USB system?
The TPS2541ARTER serves as a fully integrated USB charging port controller that combines a current-limited power switch, a 2.6-GHz USB 2.0 data-line switch, and hardware-based BC1.2/CDP/SDP/Divider Mode identification logic. In a USB system, the TPS2541ARTER enables compliant, high-bandwidth charging and data pass-through without requiring host processor intervention - directly managing VBUS enable, D+/D− signal routing, and device-class detection.
How does the DSC pin on the TPS2541ARTER differ from the EN pin on the TPS2540ARTER?
The DSC (Discharge) pin on the TPS2541ARTER is an active-low input that, when asserted, actively discharges the OUT capacitor through an internal 400–630 Ω path - ensuring rapid, controlled VBUS removal. In contrast, the EN (Enable) pin on the TPS2540ARTER only disables the power switch and data path but provides no discharge path, relying on external leakage or circuit decay. This makes the TPS2541ARTER preferable in systems requiring deterministic power-down timing.
Can the TPS2541ARTER support Apple® iPhone and iPad charging without additional components?
Yes, the TPS2541ARTER natively supports Apple® Divider Mode charging by configuring CTL1–CTL3 to generate precise 2.0 V on DP_IN and 2.7 V on DM_IN with 8–12.5 kΩ output impedance - matching the requirements of legacy iPod/iPhone devices. No external voltage dividers, op-amps, or microcontrollers are needed, as this functionality is implemented in hardwired analog circuitry within the TPS2541ARTER.
What thermal considerations apply to the TPS2541ARTER's RTE package?
The TPS2541ARTER in the RTE package features an exposed thermal die pad that must be soldered to a solid GND plane to achieve its specified thermal performance: θJCbot = 3.9 °C/W and θJA = 53.4 °C/W. Without proper pad connection, junction temperature rise increases significantly - potentially triggering thermal shutdown at ≤1.5 A under 85 °C ambient. Minimum recommended copper area is 100 mm² with ≥4 thermal vias (0.3-mm diameter) to inner GND layers.
How is current limiting configured on the TPS2541ARTER?
Current limiting on the TPS2541ARTER is configured using two external resistors (ILIM0 and ILIM1) connected from respective pins to GND, plus the ILIM_SEL logic input. When ILIM_SEL = LO, the limit is set by RILIM0 (55–85 mA typ.); when ILIM_SEL = HI, it is set by RILIM1 (2.15–3.1 A typ.). Resistor values range from 16.9 kΩ to 750 kΩ, allowing precise, hardware-defined thresholds without software calibration - critical for safety-certified designs.
TPS2541ARTER Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-WFQFN Exposed Pad
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Switch Type:
- USB Switch
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- N-Channel
- Interface:
- On/Off
- Voltage - Load:
- 4.5V ~ 5.5V
- Voltage - Supply (Vcc/Vdd):
- Not Required
- Current - Output (Max):
- 2.5A
- Rds On (Typ):
- 73mOhm
- Input Type:
- Non-Inverting
- Features:
- Load Discharge, Status Flag
- Fault Protection:
- Current Limiting (Adjustable), Over Temperature, UVLO
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-WQFN (3x3)
TPS2541ARTER FAQ
1.How can I place an order for TPS2541ARTER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2541ARTER 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 TPS2541ARTER reliable?
The price and inventory of TPS2541ARTER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2541ARTER is usually 5 days.
3.What payment methods are accepted for TPS2541ARTER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2541ARTER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2541ARTER?
TPS2541ARTER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2541ARTER 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 TPS2541ARTER?
For technical support, including TPS2541ARTER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2541ARTER requirements.
6.How does Aetrix verify that TPS2541ARTER is sourced from the original manufacturer or authorized distributors?
All TPS2541ARTER 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 TPS2541ARTER meets industry standards.
7.What is the process for return or replacement of TPS2541ARTER?
All TPS2541ARTER units undergo pre-shipment inspection (PSI). If there is an issue with TPS2541ARTER, 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 TPS2541ARTER part is unused and in its original packaging.
Return procedure for TPS2541ARTER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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