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Texas Instruments TPS2541RTER
- Part No.:
- TPS2541RTER
- Manufacturer:
- Texas Instruments
- Package:
- 16-WFQFN Exposed Pad
- Datasheet:
-
TPS2541RTER.pdf
- Description:
- IC PWR SWITCH N-CHAN 1:1 16WQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,234
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Product details
Overview
TPS2541RTER from Texas Instruments is a USB charging port power switch and controller integrating a 73-mΩ high-side MOSFET, 2.6-GHz USB 2.0 data-line switch, and BC1.2/YD/T 1591-2009 charging port identification logic. It supports DCP/CDP/SDP modes, delivers up to 2.5 A output current, and features OUT discharge control via DSC input for safe hot-plug handling in notebook PCs and universal wall adapters.
For engineers reviewing the TPS2541RTER datasheet, TPS2541RTER pinout, TPS2541RTER application, or TPS2541RTER equivalent, key selection criteria include adjustable current limit (up to 2.8 A), fault-deglitched reporting, thermal shutdown at 155°C, and compatibility with USB 2.0/3.0 power switch requirements in host-side charging solutions.
Technical Context
The TPS2541RTER implements a dual-function architecture: a constant-current power distribution switch with ILIM_SEL-selectable thresholds (via external RILIM0/RILIM1 resistors) and a low-capacitance, high-bandwidth analog D+/D− switch enabling <2.6 GHz signal integrity. Its auto-detect logic identifies BC1.2 DCP, CDP, SDP, and Apple Divider Mode without host intervention.
Control is managed through three CTLx inputs defining charge mode, while DSC enables both device disable and active OUT capacitor discharge. The FAULT pin provides open-drain overcurrent/overtemperature indication with 5–12 ms deglitching, and the exposed thermal die ensures robust thermal performance in QFN16 RTE packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | Up to 2.5 A continuous; supports USB BC1.2 DCP (up to 2.8 A typical with RILIM configuration) |
| RDS(on) | 73 mΩ typical at 25°C; enables low conduction loss and minimal thermal rise under full load |
| Data Switch Bandwidth | 2.6 GHz (-3 dB); preserves USB 2.0 eye diagram integrity and minimizes edge distortion |
| Current Limit Adjustment | Two thresholds selectable via ILIM_SEL; set by external RILIM0 (LO) and RILIM1 (HI) resistors (16.9–750 kΩ range) |
| Fault Response | De-glitched FAULT assertion with 5–12 ms delay; prevents false triggering during transient overload |
| Thermal Shutdown | Activates at 155°C junction temperature with 10°C hysteresis; protects against sustained overload or poor PCB heatsinking |
| Supply Range | 4.5 V to 5.5 V IN; compatible with standard USB VBUS rails and regulated 5-V system supplies |
Pinout & Package
TPS2541RTER uses a 16-pin QFN package (RTE) with an exposed thermal pad. Pin 1 is IN; pins 2–3 are DM_OUT/DP_OUT; pins 10–11 are DP_IN/DM_IN; pin 12 is OUT; pin 14 is GND; pin 15–16 are ILIM1/ILIM0; pin 4 is ILIM_SEL; pin 5 is DSC; pins 6–8 are CTL1–CTL3; pin 13 is FAULT; pin 9 is N/C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN (Pin 1) | Power input | Accepts 4.5–5.5 V USB VBUS; requires local 0.1 µF ceramic decoupling |
| OUT (Pin 12) | Switched output | Delivers current-limited power to downstream USB port; supports active discharge via DSC |
| DSC (Pin 5) | Enable/discharge control | Active-low input: disables power switch and discharges OUT capacitor when pulled low |
| FAULT (Pin 13) | Open-drain fault indicator | Asserts low during overcurrent or overtemperature; 100 mV max VOL at 1 mA sink |
| CTL1–CTL3 (Pins 6–8) | Charge mode selection | 3-bit logic inputs selecting DCP/CDP/SDP/Divider Mode per truth table; no pull-up/pull-down required |
| ILIM0/ILIM1 (Pins 16/15) | Current limit set resistors | Connect to GND to define two independent current-limit thresholds; RILIM0 = LO, RILIM1 = HI |
| ILIM_SEL (Pin 4) | Threshold select | Logic-level input choosing between ILIM0 (LO) or ILIM1 (HI) resistor network |
| DP_IN/DM_IN (Pins 10/11) | USB data input | Interface to upstream USB connector; support BC1.2 handshaking and Apple Divider Mode voltage generation |
| DP_OUT/DM_OUT (Pins 3/2) | USB data output | Connect to host controller; maintain 2.6 GHz bandwidth and <6.2 pF on-state capacitance |
Key Features
| Feature | Design Value |
|---|---|
| BC1.2 & YD/T 1591-2009 compliance | Enables certified charging for smartphones, tablets, and accessories without external firmware or host CPU involvement |
| 2.6-GHz USB 2.0 data switch | Preserves signal integrity across full USB 2.0 bandwidth with <0.2 ns skew and >52 dB on-state isolation |
| Adjustable current limit (2 thresholds) | Supports flexible design margining: e.g., 500 mA SDP + 2.5 A DCP using same BOM with resistor selection |
| Active OUT discharge via DSC | Eliminates residual voltage on downstream port during disconnect, meeting USB hot-plug safety requirements |
| Thermal shutdown with hysteresis | Prevents latch-up during sustained overload; 10°C hysteresis ensures stable recovery after cooling |
Applications
| Notebook PC USB Charging Port | Universal Wall Charging Adapter |
|---|---|
Use Scenario: Notebook acts as USB host providing charging to peripherals while maintaining data connectivity. IC Role / Device Role / Timing Role: TPS2541RTER serves as the front-end power switch and charger ID circuit, managing VBUS delivery and D+/D− handshaking. Use Value: Enables simultaneous BC1.2-compliant charging and USB 2.0 data transfer without host CPU polling or additional ICs. | Use Scenario: Compact AC/DC adapter delivering fast charging to multiple mobile devices via USB-A ports. IC Role / Device Role / Timing Role: TPS2541RTER implements dedicated charging port (DCP) emulation and handles legacy Apple device detection. Use Value: Supports 2.5 A DCP output and Apple Divider Mode (2.0 V DP, 2.7 V DM) from single IC, reducing BOM count and layout area. |
| USB Hub with Charging Support | Industrial Docking Station |
Use Scenario: Multi-port hub supplying power and data to connected peripherals including phones and tablets. IC Role / Device Role / Timing Role: TPS2541RTER manages per-port power switching and automatic charge mode detection for each downstream port. Use Value: Delivers CDP-mode (1.5 A + data) or DCP-mode (2.5 A) based on attached device, eliminating manual configuration. | Use Scenario: Rugged docking station for field tablets requiring reliable hot-plug charging and data sync in harsh environments. IC Role / Device Role / Timing Role: TPS2541RTER provides fault-protected VBUS switching, short-circuit response (<1.5 µs), and thermal monitoring. Use Value: Withstands repeated short circuits and capacitive loads; FAULT pin enables system-level fault logging and graceful shutdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB charging port power switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2540RTER | Uses EN pin instead of DSC; no active OUT discharge capability; shorter detach detection time (≤0.9 s vs ≤9 s) | Not suitable where active capacitor discharge is required for USB compliance or safety-critical disconnects | Select TPS2540RTER only if system does not require controlled OUT discharge and uses simpler enable-only control |
| TPS2541ARTER | Same functionality and pinout; differs only in tape-and-reel packaging (ARTER = 3,000-unit reel vs RTER = 250-unit reel) | No functional difference; identical electrical and thermal specs; used for high-volume automated assembly | Choose TPS2541ARTER for production runs requiring SMT placement efficiency and lower unit cost at volume |
Compared with TPS2540RTER, TPS2541RTER adds mandatory OUT discharge for safe hot-unplug, while TPS2541ARTER offers identical performance in optimized packaging-making TPS2541RTER ideal for prototyping and low-volume designs needing DSC control.
Availability
TPS2541RTER is available at Aetrix Electronics and suitable for notebook PCs, universal wall charging adapters, USB hubs with charging support, and industrial docking stations requiring stable component supply, consistent USB compliance, and robust thermal management.
Supply support for TPS2541RTER 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 broad industrial, automotive, and consumer applications.
The TPS2541RTER belongs to TI's USB power delivery and charging port IC product line, designed specifically to integrate BC1.2/YD/T 1591-2009 charging identification, high-bandwidth data switching, and current-limited power distribution into a single QFN package for space-constrained host systems.
FAQ
What is the maximum adjustable current limit of the TPS2541RTER?
The TPS2541RTER supports an adjustable current limit up to 2.8 A typical, achieved by configuring RILIM1 (ILIM1-to-GND resistor) to 16.9 kΩ in HI-threshold mode. At 25°C, the device delivers 2.5 A continuously per recommended operating conditions, with thermal derating above 85°C ambient.
How does the DSC pin function in the TPS2541RTER?
The DSC pin in the TPS2541RTER is an active-low input that simultaneously disables the power switch and activates internal discharge FETs to safely bleed charge from the OUT capacitor. When DSC is pulled low, OUT voltage drops through ~500 Ω discharge resistance, meeting USB hot-plug safety requirements without external circuitry.
Does the TPS2541RTER support Apple device charging protocols?
Yes, the TPS2541RTER supports Apple Divider Mode via its integrated charger identification block. When configured with CTL1–CTL3 = 101, it generates 1.9–2.1 V on DP_IN and 2.57–2.84 V on DM_IN, matching iPod/iPhone voltage signatures for full-speed charging without host intervention.
What is the purpose of the ILIM_SEL pin on the TPS2541RTER?
The ILIM_SEL pin selects between two independently adjustable current-limit thresholds: logic LO engages RILIM0 (e.g., 500 mA SDP), logic HI engages RILIM1 (e.g., 2.5 A DCP). This enables dynamic reconfiguration of output current limits in real time without changing external components.
Can the TPS2541RTER be used in USB 3.0 applications?
Yes, the TPS2541RTER is compatible with USB 3.0 power switch requirements. While its 2.6-GHz data switch targets USB 2.0 D+/D− lines, its power-switch section meets USB 3.0 VBUS specifications-including 4.5–5.5 V operation, 2.5 A continuous current, and fault protection-making it suitable for hybrid USB 2.0/3.0 ports where only data switching is needed on the legacy lanes.
TPS2541RTER 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)
TPS2541RTER FAQ
1.How can I place an order for TPS2541RTER through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2541RTER 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 TPS2541RTER reliable?
The price and inventory of TPS2541RTER are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2541RTER is usually 5 days.
3.What payment methods are accepted for TPS2541RTER?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2541RTER transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2541RTER?
TPS2541RTER orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2541RTER 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 TPS2541RTER?
For technical support, including TPS2541RTER datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2541RTER requirements.
6.How does Aetrix verify that TPS2541RTER is sourced from the original manufacturer or authorized distributors?
All TPS2541RTER 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 TPS2541RTER meets industry standards.
7.What is the process for return or replacement of TPS2541RTER?
All TPS2541RTER units undergo pre-shipment inspection (PSI). If there is an issue with TPS2541RTER, 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 TPS2541RTER part is unused and in its original packaging.
Return procedure for TPS2541RTER:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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