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Texas Instruments TPD3S014TDBVRQ1
- Part No.:
- TPD3S014TDBVRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Current Regulation/Management
- Package:
- SOT-23-6
- Datasheet:
-
TPD3S014TDBVRQ1.pdf
- Description:
- IC CURRENT SWITCH SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:18,423
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Product details
Overview
TPD3S014TDBVRQ1 from Texas Instruments is an AEC-Q100 Grade 2 automotive-qualified integrated load switch and dual-channel ESD protection array for USB 2.0/3.0 host ports. It delivers 0.5 A continuous current, features 0.85 A typical constant-current limiting with 2 µs overload response, reverse current blocking, and IEC 61000-4-2 ±12-kV contact ESD protection on D+/D– lines. It is deployed in head units and telematics modules to safeguard USB power and data paths against short circuits and electrostatic discharge.
For engineers reviewing the TPD3S014TDBVRQ1 datasheet, TPD3S014TDBVRQ1 pinout, TPD3S014TDBVRQ1 application, or TPD3S014TDBVRQ1 equivalent, key selection considerations include its automotive-grade thermal shutdown (135°C), integrated output discharge (470 Ω typical), soft-start timing (1.6 ms rise time), and SOT-23-6 package compatibility with high-density USB port layouts.
Technical Context
The TPD3S014TDBVRQ1 integrates an N-channel MOSFET load switch with internal charge pump gate drive and a two-channel TVS diode array for bidirectional D+/D– ESD clamping. Its control logic implements undervoltage lockout (3.77 V threshold), enable-input hysteresis (0.13 V), and thermal auto-restart cycling between 135°C trip and 115°C recovery.
It operates as a single-point protection solution: the power switch regulates VBUS delivery under fault conditions while the ESD array maintains <0.02 pF differential capacitance and <1.4 pF line-to-ground capacitance-critical for preserving USB 2.0 signal integrity. The device sustains operation across –40°C to +105°C ambient with RDS(on) of 120 mΩ (typ) at 25°C and 164 mΩ (max) over full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Continuous Current | 0.5 A - supports standard USB host port power delivery without derating at +85°C ambient |
| Current Limit Threshold | 0.85 A (typ) - limits fault current to prevent damage during sustained short-circuit events |
| ESD Protection Level | ±12-kV contact (IEC 61000-4-2) - exceeds automotive USB interface immunity requirements |
| RDS(on) | 120 mΩ (typ) - minimizes voltage drop (<60 mV at 0.5 A) and power loss in 5-V VBUS path |
| Short-Circuit Response Time | 2 µs - isolates upstream 5-V rail before fault energy propagates beyond local port |
| Output Discharge Resistance | 470 Ω (typ) - safely bleeds residual charge from OUT node within milliseconds after disable |
| Operating Ambient Range | –40°C to +105°C - qualified per AEC-Q100 Grade 2 for under-hood and infotainment environments |
Pinout & Package
TPD3S014TDBVRQ1 uses a 6-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, optimized for compact USB port routing with exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Logic enable input | Active-high TTL/CMOS-compatible control; 1.45 V typical turn-on threshold ensures robust noise margin |
| GND (Pin 2) | Power and signal reference | Common return for switch, ESD diodes, and internal bias; must be low-inductance connection to system ground plane |
| IN (Pin 3) | VBUS input supply | 5-V input node requiring ≥0.1 µF ceramic decoupling; connects to upstream 5-V source with UVLO monitoring |
| D1 (Pin 5) | USB D+ or D– data line | Bidirectional ESD clamp terminal; supports either D+ or D– assignment per board layout; <0.02 pF differential capacitance |
| D2 (Pin 6) | USB D+ or D– data line | Complementary data-line clamp; paired with D1 to protect full USB differential pair; matched dynamic resistance (0.2 Ω) |
| OUT (Pin 4) | Switched VBUS output | Delivers regulated 5-V power to downstream USB connector; includes integrated pull-down for safe discharge when disabled |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Load Switch + ESD Array | Single-component replacement for discrete switch + dual TVS diodes-reduces BOM count and PCB area by >40% |
| Fast Overcurrent Response | 2 µs detection-to-limit activation prevents transient overloads from collapsing main 5-V rail |
| Built-in Soft Start | 1.6 ms output rise time (tR) eliminates inrush current spikes into heavy capacitive loads (e.g., 150 µF USB port caps) |
| Reverse Current Blocking | Prevents backfeed from OUT to IN when disabled-essential for multi-port USB hubs with shared VBUS |
| Thermal Auto-Restart | Shuts down at 135°C junction and recovers at 115°C-enables fault-tolerant operation without manual reset |
Applications
| Head Unit USB Port Protection | Rear Seat Entertainment Interface |
|---|---|
Use Scenario: Protecting front-panel USB-A ports in automotive infotainment head units against cable hot-plug surges and ESD events during user insertion. IC Role / Device Role / Timing Role: Acts as VBUS current limiter and D+/D– ESD clamp; enables safe 5-V power sequencing and maintains USB 2.0 eye diagram integrity. Use Value: Eliminates need for external polyfuse and discrete TVS diodes-reducing component count while meeting ISO 10605 ±8-kV contact discharge requirement. |
Use Scenario: Securing USB connections to rear-seat tablets or media players subject to repeated mechanical stress and static discharge in cabin environments. IC Role / Device Role / Timing Role: Provides coordinated overcurrent shutdown and bidirectional data-line clamping; ensures uninterrupted video/audio streaming during fault conditions. Use Value: Maintains <1.4 pF line-to-ground capacitance to preserve USB 2.0 signal rise/fall times-critical for error-free 480 Mbps data transfer. |
| Telematics Control Unit USB Hub | Navigation Module Power Management |
Use Scenario: Enabling robust USB connectivity in telematics ECUs that aggregate cellular, GPS, and firmware update traffic via multi-port hubs. IC Role / Device Role / Timing Role: Functions as per-port current limiter and ESD protector; supports hot-swap compliance and prevents cascading faults across hub channels. Use Value: Delivers 0.5 A continuous current per port with 2 µs fault response-ensuring stable power delivery even during simultaneous peripheral enumeration. |
Use Scenario: Managing VBUS power to embedded GPS/navigation modules where intermittent short circuits may occur due to flex-cable wear or connector mating issues. IC Role / Device Role / Timing Role: Serves as intelligent VBUS switch with thermal foldback; sustains operation during brief shorts and auto-recovers without system reset. Use Value: Integrates output discharge (470 Ω) to clear residual charge before re-enabling-preventing latch-up or data corruption during rapid reconnect cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB host port protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD3S014RTERQ1 | Same functional spec but 3-mm × 3-mm WSON-6 package; 2× larger footprint and higher thermal resistance (RθJA = 130°C/W vs. 185.8°C/W) | Better suited for thermally constrained layouts needing lower junction rise per watt; less optimal for space-constrained USB connectors | Select TPD3S014RTERQ1 only if board layout requires WSON package compatibility or improved power dissipation margin. |
| TPD2EUSB30DRYR | ESD-only array (no load switch); 0.5-pF D+/D– capacitance; no current limiting, thermal shutdown, or enable control | Requires external discrete load switch and current sense circuitry-increases BOM, layout complexity, and failure points | Choose TPD2EUSB30DRYR only when existing design already implements a separate automotive-grade load switch and only ESD augmentation is needed. |
Compared with TPD3S014RTERQ1 and TPD2EUSB30DRYR, the TPD3S014TDBVRQ1 uniquely combines AEC-Q100-compliant current limiting, integrated discharge, and ultra-low-capacitance ESD protection in the smallest SOT-23-6 footprint-making it the only single-chip solution for space- and reliability-critical automotive USB host ports.
Availability
TPD3S014TDBVRQ1 is available at Aetrix Electronics and suitable for automotive head units, telematics control units, and navigation modules requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for TPD3S014TDBVRQ1 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 automotive electronics, with decades of expertise in high-reliability power and interface solutions.
The TPD3S014TDBVRQ1 belongs to TI's automotive-qualified USB protection portfolio, designed specifically to meet stringent AEC-Q100 Grade 2 requirements for in-vehicle USB host port resilience against electrical overstress and thermal faults.
FAQ
What is the maximum continuous current rating of the TPD3S014TDBVRQ1?
The TPD3S014TDBVRQ1 supports 0.5 A of continuous output current across its full operating temperature range of –40°C to +105°C ambient. This rating is validated under recommended operating conditions with proper PCB thermal relief and 0.1 µF input capacitance. At higher ambient temperatures, derating may apply per thermal resistance data (RθJA = 185.8°C/W). The TPD3S014TDBVRQ1 maintains this current capability while delivering low RDS(on) and fast fault response.
Does the TPD3S014TDBVRQ1 provide protection for both USB 2.0 and USB 3.0 interfaces?
Yes, the TPD3S014TDBVRQ1 is explicitly specified for USB 2.0 and USB 3.0 host port protection. Its D+/D– ESD array exhibits <0.02 pF differential capacitance and <1.4 pF line-to-ground capacitance at 1 MHz, ensuring minimal signal distortion for high-speed USB 2.0 (480 Mbps) operation. While not rated for SuperSpeed (5 Gbps) differential pairs, it safeguards the legacy USB 2.0 signaling lanes used in all backward-compatible USB 3.0 connectors. The TPD3S014TDBVRQ1 datasheet confirms this dual-interface support in Section 2 Applications.
How does the TPD3S014TDBVRQ1 respond to a short-circuit event on the OUT pin?
Upon detecting an output short, the TPD3S014TDBVRQ1 enters constant-current mode at 0.85 A (typical) within 2 µs, limiting power dissipation and preventing upstream rail collapse. If the short persists, junction temperature rises until thermal shutdown activates at 135°C (min), disabling the switch. After cooling to ~115°C, the device auto-restarts. This cycle repeats until the fault clears. The TPD3S014TDBVRQ1 also engages output discharge (470 Ω) during disable to safely dissipate stored charge-verified in Figure 6-6 of the datasheet.
Is the TPD3S014TDBVRQ1 compatible with standard 5-V USB VBUS requirements?
Yes, the TPD3S014TDBVRQ1 is designed for 5-V USB applications with a recommended input voltage range of 4.5 V to 5.5 V. It incorporates undervoltage lockout (UVLO) with a 3.77 V rising threshold and 0.14 V hysteresis to ensure clean turn-on and prevent erratic behavior near brownout conditions. The device tolerates momentary input transients up to 6.5 V and maintains regulation across its full current range-fully compliant with USB Battery Charging Specification v1.2 and automotive 5-V rail stability requirements. All performance specs for the TPD3S014TDBVRQ1 assume 5-V nominal operation.
What package type does the TPD3S014TDBVRQ1 use, and is it RoHS-compliant?
The TPD3S014TDBVRQ1 uses a 6-pin SOT-23 (DBV) package measuring 2.90 mm × 1.60 mm, with lead finish of NiPdAu and matte tin. It is RoHS-compliant and halogen-free per TI's environmental standards, and qualifies for lead-free soldering processes including reflow per J-STD-020. The DBV package enables high-density routing adjacent to USB connectors and is supported by TI's official thermal and layout guidelines in Section 11 of the TPD3S014TDBVRQ1 datasheet.
TPD3S014TDBVRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Current Switch
- Sensing Method:
- High-Side
- Accuracy:
- -
- Voltage - Input:
- 4.5V ~ 5.5V
- Current - Output:
- 500mA
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
TPD3S014TDBVRQ1 FAQ
1.How can I place an order for TPD3S014TDBVRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPD3S014TDBVRQ1 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 TPD3S014TDBVRQ1 reliable?
The price and inventory of TPD3S014TDBVRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPD3S014TDBVRQ1 is usually 5 days.
3.What payment methods are accepted for TPD3S014TDBVRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPD3S014TDBVRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPD3S014TDBVRQ1?
TPD3S014TDBVRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPD3S014TDBVRQ1 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 TPD3S014TDBVRQ1?
For technical support, including TPD3S014TDBVRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPD3S014TDBVRQ1 requirements.
6.How does Aetrix verify that TPD3S014TDBVRQ1 is sourced from the original manufacturer or authorized distributors?
All TPD3S014TDBVRQ1 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 TPD3S014TDBVRQ1 meets industry standards.
7.What is the process for return or replacement of TPD3S014TDBVRQ1?
All TPD3S014TDBVRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPD3S014TDBVRQ1, 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 TPD3S014TDBVRQ1 part is unused and in its original packaging.
Return procedure for TPD3S014TDBVRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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