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Texas Instruments TPS2511QDGNQ1
- Part No.:
- TPS2511QDGNQ1
- Manufacturer:
- Texas Instruments
- Category:
- Power Management - Specialized
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
- Datasheet:
-
TPS2511QDGNQ1.pdf
- Description:
- IC USB PWR SW/CTRLR CHRG 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:13,783
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Product details
Overview
TPS2511QDGNQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive-qualified USB Dedicated Charging Port (DCP) controller and current-limiting power switch with 80-mΩ high-side MOSFET, ±10% accurate 2.3 A typical current limit, and auto-detection of BC1.2 short-mode, divider-mode (2.7 V/2.0 V), and 1.2 V/1.2 V DCP signatures - deployed in vehicle USB power chargers and AC-DC wall adapters.
For engineers reviewing the TPS2511QDGNQ1 datasheet, TPS2511QDGNQ1 pinout, TPS2511QDGNQ1 application, or TPS2511QDGNQ1 equivalent, key selection criteria include DCP signature compatibility (BC1.2/China YD/T 1591/divider), hiccup-mode short-circuit protection threshold (3.8 V OUT), CS pin for cable compensation, EN logic-level control, and MSOP-8 thermal performance (θJA = 65.2°C/W).
Technical Context
The TPS2511QDGNQ1 integrates a programmable current-limit power switch and autonomous DCP detection logic that monitors DP/DM line voltages to select among three output signature modes: shorted (BC1.2), 2.7 V/2.0 V divider, or 1.2 V/1.2 V - all compliant with USB Battery Charging Specification Rev 1.2 and YD/T 1591-2009. It uses internal charge-pump-driven gate drive for the N-channel MOSFET.
Hiccup mode activates when OUT voltage drops below 3.8 V for ≥16 ms under overload, forcing 12 s off-time to limit thermal stress; UVLO disables operation below 4.1 V (with 100 mV hysteresis), and the CS pin provides active-low current-sense reporting at ~50% of programmed ILIM with 8 ms deglitch.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 5.5 V - supports stable 5 V rail operation across automotive load dump and cold-crank conditions. |
| Current Limit Accuracy | ±10% at 2.3 A typical - enables precise overcurrent protection without derating for worst-case RILIM tolerance. |
| RDS(on) | 80 mΩ typical - minimizes conduction loss (≤115 mW at 1.5 A) and self-heating in compact MSOP-8 package. |
| Hiccup Threshold | 3.8 V OUT voltage - triggers 12 s off-cycle when VBUS collapses due to short or heavy capacitive load. |
| DCP Signature Support | BC1.2 short-mode, 2.7 V/2.0 V divider, 1.2 V/1.2 V - ensures interoperability with smartphones, tablets, and PMPs requiring fast-charge handshaking. |
| Thermal Protection | 155°C junction shutdown (rising), 10°C hysteresis - prevents permanent damage during sustained overload or poor PCB heatsinking. |
| EN Input Compatibility | TTL/CMOS logic levels (0.9–1.65 V trip, 100–300 mV hysteresis) - allows direct interface with microcontrollers or PMIC enable signals. |
Pinout & Package
TPS2511QDGNQ1 is housed in an 8-pin MSOP (DGN) package with exposed PowerPAD for enhanced thermal dissipation; pin 1 is GND, pin 5 is EN, pin 8 is OUT, and pins 6/7 are DP/DM bidirectional DCP signature outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1 & Pin 9/PAD) | Ground reference and thermal path | Two ground connections: Pin 1 for signal return, PowerPAD for thermal conduction to PCB copper. |
| ILIM_SET (Pin 2) | Current limit programming input | Resistor-to-GND sets ILIM from 1.1 A to 3.3 A per RILIM = 16.9–750 kΩ; accuracy optimized <210 kΩ. |
| IN (Pin 3) | Main power input | Accepts 4.5–5.5 V supply; requires ≥0.1 µF ceramic decoupling capacitor placed adjacent to pin. |
| CS (Pin 4) | Current sense open-drain output | Active-low signal asserted when IOUT > ~50% of programmed ILIM; sinks ≤10 mA; used for cable IR compensation. |
| EN (Pin 5) | Enable control input | Logic-high (>1.1 V) enables switch and DCP logic; logic-low disables OUT and places DP/DM in high-Z state. |
| OUT (Pin 8) | Switched VBUS output | Drives USB VBUS line; features soft-start (1.5 ms rise), discharge resistor (~500 Ω), and reverse-blocking capability. |
| DP (Pin 6) / DM (Pin 7) | DCP signature output terminals | Auto-configured as shorted, 2.7 V/2.0 V, or 1.2 V/1.2 V based on attached device detection; output impedance 24–130 kΩ depending on mode. |
Key Features
| Feature | Design Value |
|---|---|
| Automated DCP signature generation | Dynamically selects BC1.2 short, 2.7 V/2.0 V divider, or 1.2 V/1.2 V mode without external configuration - eliminates firmware dependency in charger designs. |
| Hiccup-mode short-circuit protection | Reduces average short-circuit current to milliampere level by cycling 12 s OFF / 16 ms ON - sustains operation without thermal shutdown during intermittent faults. |
| CS pin for USB cable compensation | Enables real-time adjustment of VBUS setpoint based on measured I×R drop - maintains ≥4.75 V at device connector despite 100–200 mΩ cable resistance. |
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation with H2/HBM and C3B/CDM ESD ratings - meets automotive infotainment system reliability requirements. |
| Programmable current limit via single resistor | Supports 1.1–3.3 A range using standard 1% resistors - simplifies BOM and enables one hardware design to serve multiple power-tier applications. |
Applications
| Vehicle USB Power Charger | AC-DC Wall Adapter with USB Port |
|---|---|
Use Scenario: Integrated into 12 V automotive electrical systems to deliver USB charging via cigarette-lighter or center-console ports. IC Role / Device Role / Timing Role: Acts as DCP controller and current-limited power switch, generating correct BC1.2 signatures while regulating VBUS under varying battery voltage (9–16 V input after DC-DC conversion to 5 V). Use Value: Enables plug-and-play smartphone/tablet charging without enumeration delay; hiccup mode prevents fuse blowing during accidental VBUS shorts. | Use Scenario: Embedded in compact 5 V, 2.4 A wall adapters for consumer electronics retail. IC Role / Device Role / Timing Role: Provides DCP signature generation, current limiting, and EN-controlled power sequencing - replacing discrete transistor+resistor solutions. Use Value: Reduces bill-of-materials count by 4+ components; CS feedback improves VBUS regulation accuracy to ±25 mV over full load range. |
| Automotive Infotainment Systems | Other USB Charger Modules |
Use Scenario: Mounted on head-unit or rear-seat entertainment PCBs to supply dedicated charging to passenger devices. IC Role / Device Role / Timing Role: Functions as isolated, fault-protected USB power distributor with EN synchronization to system power-up sequence. Use Value: Prevents backfeed into main 5 V rail during brownout; thermal shutdown protects against enclosure overheating in sealed enclosures. | Use Scenario: Used in multi-port USB hubs, docking stations, and industrial dock chargers requiring robust DCP compliance. IC Role / Device Role / Timing Role: Serves as per-port DCP controller with independent current limiting and CS monitoring per channel. Use Value: Eliminates need for external current-sense amplifiers or discrete DCP resistor networks - cuts layout area by ≥30%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB DCP controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS2513QDGNQ1 | Includes integrated 5-V LDO for DP/DM bias; same DCP modes and current limit range; adds VBUS OK flag output. | Required where DP/DM signaling must remain active during IN undervoltage; supports dual-role port designs. | Select TPS2513QDGNQ1 when auxiliary 5-V bias or VBUS status reporting is needed; otherwise TPS2511QDGNQ1 offers lower cost and simpler layout. |
| MAX14578EETE+T | Supports BC1.2 + Apple 2.4 A modes; higher RDS(on) (120 mΩ); no hiccup mode - uses latch-off protection instead. | Suitable for consumer-grade adapters where Apple device compatibility is mandatory and thermal margin is ample. | Choose MAX14578EETE+T only if Apple 2.4 A handshake is required; TPS2511QDGNQ1 provides superior thermal resilience and automotive qualification. |
Compared with TPS2513QDGNQ1 and MAX14578EETE+T, the TPS2511QDGNQ1 delivers optimal balance of automotive qualification, hiccup-mode robustness, and minimal external component count - making it the preferred choice for cost-sensitive, thermally constrained vehicle and industrial USB charging applications.
Availability
TPS2511QDGNQ1 is available at Aetrix Electronics and suitable for vehicle USB power chargers, AC-DC wall adapters with USB port, and automotive infotainment systems requiring stable component supply, AEC-Q100 compliance, and production-ready DCP functionality.
Supply support for TPS2511QDGNQ1 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 broad automotive, industrial, and consumer design expertise.
The TPS2511-Q1 product line delivers automotive-grade USB power delivery solutions focused on reliable DCP signature generation, current limiting, and fault protection - designed specifically for vehicle infotainment and portable device charging infrastructure.
FAQ
What USB charging standards does the TPS2511QDGNQ1 support?
The TPS2511QDGNQ1 supports USB Battery Charging Specification Revision 1.2 (BC1.2), Chinese Telecommunications Industry Standard YD/T 1591-2009, and proprietary divider-mode DCP signatures (2.7 V/2.0 V and 1.2 V/1.2 V). It does not support Apple 2.4 A or Qualcomm Quick Charge protocols. The TPS2511QDGNQ1 implements auto-detection to select the appropriate signature based on attached device behavior, ensuring broad smartphone and tablet compatibility without firmware intervention.
How is the current limit set on the TPS2511QDGNQ1?
The current limit on the TPS2511QDGNQ1 is set externally using a resistor connected between the ILIM_SET pin and GND. The nominal current limit follows IOS_TYP (mA) = 51228 / RILIM (kΩ), supporting a range from 1.1 A to 3.3 A with recommended RILIM values between 16.9 kΩ and 210 kΩ for best accuracy. For example, a 22.1 kΩ resistor yields ~2.3 A typical limit. The TPS2511QDGNQ1 maintains ±10% tolerance across temperature and process variation.
What is the function of the CS pin on the TPS2511QDGNQ1?
The CS pin on the TPS2511QDGNQ1 is an active-low, open-drain current-sense output that asserts when the OUT current exceeds approximately 50% of the programmed current limit. It provides a fast response (<1.5 µs) with built-in 8 ms deglitching to reject noise. Engineers use the CS signal to dynamically adjust the VBUS setpoint in the upstream DC-DC converter, compensating for voltage drop across USB cables up to 200 mΩ - ensuring ≥4.75 V reaches the connected device. The TPS2511QDGNQ1 CS pin sinks up to 10 mA.
Does the TPS2511QDGNQ1 provide thermal protection?
Yes, the TPS2511QDGNQ1 includes dual thermal protection: (1) Overtemperature shutdown at 155°C junction temperature (rising) with 10°C hysteresis, and (2) Hiccup-mode activation when OUT voltage falls below 3.8 V for ≥16 ms under overload - resulting in 12 s off-time cycles. Both mechanisms protect the device during sustained short circuits or poor heatsinking. The TPS2511QDGNQ1's MSOP-8 PowerPAD package achieves θJA = 65.2°C/W on 2-layer PCBs, enabling 2.3 A continuous operation with proper copper area.
Can the TPS2511QDGNQ1 be used in non-automotive applications?
Yes, the TPS2511QDGNQ1 is fully functional in commercial and industrial applications, though it is AEC-Q100 Grade 1 qualified for automotive use (–40°C to +125°C ambient). Its robust DCP signature generation, hiccup-mode protection, and wide input range (4.5–5.5 V) make it suitable for AC-DC wall adapters, USB hubs, docking stations, and industrial dock chargers. The TPS2511QDGNQ1's automotive qualification provides extended lifetime and reliability assurance even in non-automotive deployments.
TPS2511QDGNQ1 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 ~ 125°C
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-HVSSOP
TPS2511QDGNQ1 FAQ
1.How can I place an order for TPS2511QDGNQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS2511QDGNQ1 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 TPS2511QDGNQ1 reliable?
The price and inventory of TPS2511QDGNQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS2511QDGNQ1 is usually 5 days.
3.What payment methods are accepted for TPS2511QDGNQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS2511QDGNQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS2511QDGNQ1?
TPS2511QDGNQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS2511QDGNQ1 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 TPS2511QDGNQ1?
For technical support, including TPS2511QDGNQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS2511QDGNQ1 requirements.
6.How does Aetrix verify that TPS2511QDGNQ1 is sourced from the original manufacturer or authorized distributors?
All TPS2511QDGNQ1 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 TPS2511QDGNQ1 meets industry standards.
7.What is the process for return or replacement of TPS2511QDGNQ1?
All TPS2511QDGNQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS2511QDGNQ1, 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 TPS2511QDGNQ1 part is unused and in its original packaging.
Return procedure for TPS2511QDGNQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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