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Texas Instruments TPS2511DGN
- Part No.:
- TPS2511DGN
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2511DGN.pdf
- Description:
- IC USB PWR SW/CTRLR CHRG 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,461
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Product details
Overview
TPS2511DGN from Texas Instruments is a USB-dedicated charging port (DCP) controller and current-limiting power switch in an 8-pin MSOP-PowerPAD™ package. It implements BC1.2, YD/T 1591-2009, and Divider-mode DCP detection; features 70-mΩ typical RDS(on), ±10% accurate 2.3-A current limit (programmable via ILIM_SET), and hiccup-mode short-circuit protection. It enables fast-charging compliance in automotive USB adapters and wall chargers.
For engineers reviewing the TPS2511DGN datasheet, TPS2511DGN pinout, TPS2511DGN application, or TPS2511DGN equivalent, this page delivers verified technical context, real-world USB charging interface behavior, programmable current-limit design implications, thermal shutdown thresholds, and validated alternative options for DCP controller selection.
Technical Context
The TPS2511DGN integrates auto-detect logic that monitors DP/DM line voltages to identify BC1.2 short-mode, Divider-mode (2.7 V/2.0 V or 1.2 V/1.2 V), and Chinese YD/T 1591-2009 signatures-then configures internal switches to apply correct D+ and D– voltages. Its 70-mΩ high-side MOSFET supports continuous 2.2-A output with <3.8-V hiccup trigger and 12-s off-time under sustained overload.
It provides active current sensing via open-drain CS pin (asserted at ~50% of programmed limit), EN-controlled enable/disable with TTL/CMOS compatibility, and UVLO (4.1-V turn-on, 100-mV hysteresis). The device includes built-in discharge resistance (500-Ω typical) and cable compensation support through CS-driven feedback loop adjustment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RDS(on) | 70 mΩ typical - limits I²R loss and self-heating during 2.2-A continuous operation |
| Current Limit Accuracy | ±10% at 2.3 A typical - ensures predictable overcurrent response without external calibration |
| Operating Voltage Range | 4.5 V to 5.5 V - matches standard USB 5-V supply rails and accommodates input ripple |
| Hiccup Threshold | 3.8 V typical OUT voltage - triggers 16-ms on / 12-s off cycling to limit average power dissipation during shorts |
| Thermal Shutdown | 135°C (in current limit), 155°C (unconditional) - protects die integrity under sustained overload or poor PCB thermal design |
| CS Pin Function | Active-low open-drain output asserted at ~50% of ILIM - enables real-time cable compensation feedback for VBUS boost |
| EN Input Logic | TTL/CMOS-compatible - allows direct interfacing with microcontrollers or system power sequencers |
Pinout & Package
TPS2511DGN uses an 8-pin MSOP-PowerPAD™ package (3.00 mm × 3.00 mm) with exposed thermal pad (GND-connected) for enhanced heat dissipation in high-current USB charging applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1 & PowerPAD) | Ground reference and thermal path | Primary return for all internal circuits; PowerPAD must be soldered to PCB ground plane for thermal performance |
| ILIM_SET (Pin 2) | Current limit programming input | Resistor-to-ground sets precise current threshold (16.9 kΩ–750 kΩ range yields 1.06–3.33 A) |
| IN (Pin 3) | Power input supply | Connects to 4.5–5.5 V source; requires ≥0.1-µF ceramic decoupling capacitor placed adjacent to pin |
| CS (Pin 4) | Current sense status output | Open-drain signal active low when OUT current exceeds ~50% of programmed limit; used for cable compensation |
| EN (Pin 5) | Enable control input | Logic-high enables power switch and DP/DM drivers; logic-low disables all functions and places DP/DM in high-Z |
| DP (Pin 6) | D+ line interface | I/O pin configured as output during DCP detection (2.7 V, 1.2 V, or shorted per mode); high-Z when disabled |
| DM (Pin 7) | D− line interface | I/O pin configured as output during DCP detection (2.0 V, 1.2 V, or shorted per mode); high-Z when disabled |
| OUT (Pin 8) | Switched VBUS output | Drives USB VBUS rail; incorporates soft-start, reverse blocking, and 500-Ω discharge resistor when disabled |
Key Features
| Feature | Design Value |
|---|---|
| Triple DCP protocol support | Automatically detects and applies BC1.2 short-mode, Divider-mode (2.7 V/2.0 V), and 1.2 V/1.2 V signatures without firmware |
| Programmable current limit | Set via single external resistor (16.9–750 kΩ) to achieve 1.06–3.33 A with ±10% accuracy at 2.3 A |
| Hiccup-mode short-circuit protection | Enters 16-ms ON / 12-s OFF cycling when OUT drops below 3.8 V - reduces average power dissipation by >99% during fault |
| USB cable compensation interface | CS pin provides real-time current-proportional signal to adjust upstream DC/DC output voltage and maintain VBUS at target |
| Integrated thermal protection | Dual thermal sensors (135°C in current limit, 155°C unconditional) with 10°C hysteresis prevent junction overheating |
Applications
| Vehicle USB Power Chargers | AC-DC Wall Adapters with USB Ports |
|---|---|
Use Scenario: Integrated into 12-V automotive USB charging modules delivering up to 10 W per port. IC Role / Device Role / Timing Role: DCP controller that identifies connected devices and configures D+/D− lines to meet BC1.2 or YD/T 1591-2009 requirements before enabling VBUS. Use Value: Enables plug-and-play fast charging for smartphones and tablets without host negotiation - critical for infotainment-integrated charging systems. |
Use Scenario: Embedded in compact 5-V, 2.2-A AC-DC adapters powering multiple USB ports. IC Role / Device Role / Timing Role: Current-limiting power switch and DCP signature generator that replaces discrete transistor-based solutions. Use Value: Reduces BOM count and layout area while ensuring USB-IF compliance and eliminating need for secondary microcontroller-based handshaking. |
| Industrial Docking Stations | USB-C PD Companion Charging Control |
Use Scenario: Used in ruggedized docking stations for handheld scanners and mobile computers requiring reliable 5-V charging. IC Role / Device Role / Timing Role: Dedicated charging port controller managing VBUS enable timing and D+/D− voltage sequencing during hot-plug events. Use Value: Prevents enumeration failures and ensures consistent charge initiation across diverse portable equipment brands and firmware versions. |
Use Scenario: Paired with USB-C PD controllers to provide legacy USB-A port support alongside negotiated PD profiles. IC Role / Device Role / Timing Role: Standalone DCP controller handling non-PD devices while PD controller manages higher-power negotiations. Use Value: Maintains backward compatibility with older accessories without compromising PD negotiation speed or safety margins. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB dedicated charging port controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2513DGN | Includes integrated 5-V LDO for VBUS generation; lacks CS pin for cable compensation | Suitable where local 5-V rail is unavailable but cable compensation is not required | Select TPS2513DGN only if system lacks stable 5-V supply and does not require dynamic VBUS adjustment |
| MAX14578EETE+ | Supports additional Apple 2.4-A and Samsung AFC signatures; higher quiescent current (250 µA vs 230 µA) | Better fit for consumer electronics targeting broad proprietary fast-charge compatibility | Choose MAX14578EETE+ when supporting Apple/Samsung devices is mandatory and thermal budget allows higher IQ |
Compared with TPS2511DGN, TPS2513DGN eliminates need for external 5-V supply but forfeits cable compensation capability, while MAX14578EETE+ extends protocol coverage at the cost of increased static power and reduced thermal margin - making TPS2511DGN optimal for cost-sensitive, thermally constrained industrial USB charging designs requiring precise current limiting and adaptive VBUS control.
Availability
TPS2511DGN is available at Aetrix Electronics and suitable for vehicle USB power chargers, AC-DC wall adapters with USB ports, and industrial docking stations requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for TPS2511DGN 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 power management ICs, with leadership in USB power delivery and charging solutions.
The TPS2511DGN belongs to TI's USB power switch and charging port controller product line, designed specifically for robust, standards-compliant USB charging in automotive, industrial, and consumer adapter applications.
FAQ
What USB charging protocols does the TPS2511DGN support?
The TPS2511DGN supports three standardized USB charging protocols: USB Battery Charging Specification Revision 1.2 (BC1.2) short-mode, Chinese Telecommunications Industry Standard YD/T 1591-2009, and Divider-mode (2.7 V/2.0 V or 1.2 V/1.2 V). It automatically detects attached devices and applies the correct D+ and D– voltage signatures without firmware intervention. The TPS2511DGN does not support Apple 2.4-A or Samsung AFC protocols.
How is the current limit set on the TPS2511DGN?
The TPS2511DGN current limit is set externally using a resistor connected between ILIM_SET (Pin 2) and GND. With RILIM_SET = 22.1 kΩ, the typical limit is 2.3 A ±10%. The supported range is 16.9 kΩ to 750 kΩ, yielding current limits from 1.06 A to 3.33 A. The TPS2511DGN datasheet provides Equation 1 and Figure 11 for precise calculation based on resistor tolerance and temperature drift.
What is the function of the CS pin on the TPS2511DGN?
The CS pin on the TPS2511DGN is an active-low, open-drain output that asserts when the OUT current exceeds approximately 50% of the programmed current limit. It sinks up to 10 mA and is intended for USB cable resistance compensation - enabling the upstream DC/DC converter to increase its output voltage dynamically and maintain VBUS near 5 V under high load. The TPS2511DGN's CS pin is not a precision current monitor but a robust fault-signaling interface.
Does the TPS2511DGN include thermal protection?
Yes, the TPS2511DGN includes dual thermal protection circuits: one triggers at 135°C when operating within current limit, and another at 155°C regardless of current state. Both feature 10°C hysteresis and force the device into 12-second hiccup off-time until junction temperature falls sufficiently. This ensures safe operation in enclosed automotive or wall-adapter environments where airflow is limited. The TPS2511DGN's PowerPAD package enhances thermal transfer to the PCB to support this protection scheme.
Can the TPS2511DGN be used with USB-C receptacles?
The TPS2511DGN is designed for USB-A downstream ports and interfaces directly with D+ and D– lines. It is not compatible with native USB-C signaling (CC logic, SOP packets, or PD negotiation). However, it can serve as a companion DCP controller in hybrid designs where a USB-C PD controller handles Type-C negotiation and the TPS2511DGN manages legacy USB-A port charging. In such cases, the TPS2511DGN operates independently on its own VBUS rail and does not share CC or SBU lines.
TPS2511DGN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- USB Dedicated Charging Port (DCP), Power Switch
- Current - Supply:
- 180µA
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2511DGN FAQ
1.How can I place an order for TPS2511DGN through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2511DGN 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 TPS2511DGN reliable?
The price and inventory of TPS2511DGN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2511DGN is usually 5 days.
3.What payment methods are accepted for TPS2511DGN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2511DGN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2511DGN?
TPS2511DGN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2511DGN 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 TPS2511DGN?
For technical support, including TPS2511DGN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2511DGN requirements.
6.How does Aetrix verify that TPS2511DGN is sourced from the original manufacturer or authorized distributors?
All TPS2511DGN 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 TPS2511DGN meets industry standards.
7.What is the process for return or replacement of TPS2511DGN?
All TPS2511DGN units undergo pre-shipment inspection (PSI). If there is an issue with TPS2511DGN, 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 TPS2511DGN part is unused and in its original packaging.
Return procedure for TPS2511DGN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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