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Semtech Corporation TDS2211P.C
- Part No.:
- TDS2211P.C
- Manufacturer:
- Semtech Corporation
- Category:
- Surge Suppression Ics
- Package:
- 6-UFDFN
- Datasheet:
-
TDS2211P.C.pdf
- Description:
- SURGESWITCH, 1-LINE 22V EOS PROT
- Quantity:
- Payment:
- Shipping:
Inventory:2,666
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Product details
Overview
TDS2211P.C from Semtech is a transient diverting suppressor designed to protect single 22V I/O or power lines against high-energy EOS events, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A (8/20μs) peak pulse current handling, and a stable 27.5–28V clamping voltage across temperature and current range - deployed in USB Type-C PD bus protection and industrial load switch input stages.
For engineers reviewing the TDS2211P.C datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surge, DFN-6 thermal and layout performance, 175pF junction capacitance at 22V, and compatibility with 22V working voltage systems requiring robust EOS resilience beyond standard TVS diodes.
Technical Context
The TDS2211P.C uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that turns on the shunt path when transient voltage exceeds breakdown - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its dynamic resistance is only 20mΩ (measured 1–40A, 8/20μs), far lower than conventional TVS diodes.
Unlike traditional TVS devices whose clamping voltage rises linearly with IPP due to fixed RDYN, the TDS2211P.C maintains clamping at ~27.6V from −40°C to +125°C and across 24–40A surges - verified per IEC 61000-4-5 combination waveforms (1.2/50μs voltage + 8/20μs current, RS = 2Ω).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches nominal USB PD bus and industrial 24V rail derating requirements without overvoltage stress. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays within safe margin below typical 30V+ damage thresholds of USB PD controllers and load switches. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity for unsymmetrical lines. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds Class 4 system-level ESD requirements for exposed connectors. |
| Junction Capacitance | 175pF at VR = 22V, 1MHz - low enough for DC power line protection; not suitable for high-speed data lines without supplemental low-C TVS. |
| Dynamic Resistance | 20mΩ (1–40A, 8/20μs) - enables flat clamping curve and minimizes IR drop during surge conduction. |
| Package | DFN 1.6 × 1.6 × 0.55 mm, 6-lead - supports ultra-compact placement adjacent to USB-C connectors or load switch inputs. |
Pinout & Package
Package: DFN-6 (1.6 mm × 1.6 mm × 0.55 mm), Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound, tape-and-reel (3,000 pcs/reel). Pin 1 marked with laser dot.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return for surge current; all three pins must be connected to maximize current sharing and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or power rail); all three pins are internally tied and must be shorted externally for full 40A rating. |
Key Features
| Feature | Design Value |
|---|---|
| FET-based shunt architecture | Enables <28V clamping across full 40A surge range and −40°C to +125°C ambient - eliminates temperature- and current-dependent voltage drift seen in TVS diodes. |
| Low dynamic resistance | 20mΩ ensures minimal voltage rise during surge conduction, preserving downstream device margin under worst-case 40A transients. |
| High-energy surge rating | 1120W peak pulse power (8/20μs) supports industrial lightning surge standards (±1kV, RS = 42Ω) and USB PD fault conditions. |
| Ultra-low leakage | ≤600nA at 22V reverse bias - avoids measurable power loss in always-on 22V supply rails and battery-backed systems. |
| Compact DFN footprint | 1.6 × 1.6 mm area saves >60% board space vs. comparable SO-8 or SOT-23 TVS solutions while maintaining thermal robustness. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting the VBUS line of USB-C ports supporting up to 20V/5A PD negotiation against connector ESD and system-level surges. IC Role / Device Role / Timing Role: Primary EOS shunt suppressor placed directly at the connector, clamping transients before they reach the PD controller or buck converter. Use Value: Maintains 27.6V clamping at 40A and 125°C - prevents latch-up or gate oxide damage in PD ICs rated for ≤30V absolute maximum. |
Use Scenario: Safeguarding the input of high-side load switches (e.g., HS2950P) in remote meters, robotics, and IoT edge nodes exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage across the load switch's internal FET drain-source during EOS events. Use Value: Keeps clamping voltage below the 30–35V RDS(on) breakdown threshold of industrial-grade load switches, avoiding catastrophic failure. |
| Notebook/Tablet 22V Rail Protection | Storage Device Power Input Protection |
|
Use Scenario: Securing 22V auxiliary rails in thin-client notebooks and tablets where space-constrained layouts demand minimal-footprint surge protection. IC Role / Device Role / Timing Role: Standalone transient suppressor on main power input, replacing bulkier multi-chip TVS arrays. Use Value: 1.6 × 1.6 mm DFN package fits within tight PCB keepouts near edge connectors while delivering full 40A surge capability. |
Use Scenario: Protecting SATA or NVMe storage module power inputs in enterprise SSD enclosures subject to hot-plug ESD and backplane surges. IC Role / Device Role / Timing Role: DC rail protector between power connector and local LDO/buck regulator feeding NAND controller and DRAM. Use Value: Stable 27.5V clamping ensures no voltage overshoot reaches sensitive flash memory power domains during 8/20μs surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A | Standard unidirectional TVS diode; clamping voltage rises to ~42V at 40A (8/20μs); higher RDYN (~0.5Ω); 150°C max junction temp. | Limited to lower-energy surges; unsuitable for sustained 40A or high-temp industrial environments where clamping stability is critical. | Choose SMAJ22A only for cost-sensitive, non-critical 22V rails where 42V clamping is acceptable and temperature range is limited to <85°C. |
| SP1003-220K | Bi-directional TVS array; 22V standoff; clamps at ~36V @ 40A; 200pF capacitance; SO-8 package (3.9 × 4.9 mm). | Higher capacitance and larger footprint; lacks FET-based clamping stability; better suited for mixed-signal line protection than pure power rail use. | Prefer SP1003-220K when protecting bidirectional signal lines alongside power, but avoid for 22V VBUS where sub-28V clamping and compact size are mandatory. |
Compared with SMAJ22A and SP1003-220K, the TDS2211P.C delivers superior clamping stability (27.6V vs. ≥36V), smaller footprint (1.6 mm² vs. ≥19 mm²), and guaranteed performance across −40°C to +125°C - making it the only option qualified for high-reliability 22V power rail EOS protection in USB PD and industrial load switch designs.
Availability
TDS2211P.C is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and notebook 22V rail protection requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TDS2211P.C 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for power management, protection, sensing, and connectivity.
The TDS2211P.C belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered specifically to replace conventional TVS diodes in high-energy, high-reliability EOS protection applications where clamping voltage stability across temperature and current is mission-critical.
FAQ
What is the clamping voltage behavior of the TDS2211P.C under varying surge currents?
The TDS2211P.C maintains a nearly constant clamping voltage of 27.5–28V across its full rated peak pulse current range (24A to 40A, 8/20μs), unlike conventional TVS diodes whose clamping rises linearly with current. This stability results from its low-RDS(on) FET shunt architecture and is validated per IEC 61000-4-5 combination waveforms with RS = 2Ω. The TDS2211P.C datasheet confirms this behavior from −40°C to +125°C.
Can the TDS2211P.C be used to protect high-speed data lines like USB SuperSpeed or PCIe?
No, the TDS2211P.C is not suitable for high-speed data line protection due to its 175pF junction capacitance at 22V - which would severely degrade signal integrity on differential pairs operating above 100 Mbps. It is designed exclusively for DC power rail or low-frequency I/O protection. For USB SS, DP/DM, or CC lines, Semtech recommends complementary low-capacitance devices such as RClamp3371ZC (<0.25pF) or uClamp2411ZA.
How should the TDS2211P.C be laid out on the PCB to achieve full 40A surge rating?
To achieve the full 40A (8/20μs) rating, all three IN pins (4, 5, 6) must be shorted together via a low-inductance trace directly to the protected line, and all three GND pins (1, 2, 3) must connect to a solid ground plane using multiple vias. The device must be placed within 5 mm of the connector, with minimal trace length between IN pins and the protected node - per Semtech's layout guidelines in the TDS2211P.C datasheet Rev 2.5.
Does the TDS2211P.C require a thermal pad or heatsink for 40A surge dissipation?
No, the TDS2211P.C does not require a thermal pad or external heatsink. Its FET-based architecture dissipates surge energy primarily through conduction rather than junction heating, and the DFN-6 package is rated for the transient thermal profile of IEC 61000-4-5 events. Semtech explicitly states "no thermal pad is needed" in the datasheet, noting that energy is dissipated in the device itself during the microsecond-scale surge event.
Is the TDS2211P.C compatible with lead-free reflow soldering processes?
Yes, the TDS2211P.C is fully compatible with standard lead-free reflow profiles (JEDEC J-STD-020). Its package uses lead-free terminal finish and is rated for peak reflow temperatures up to 260°C. The device is RoHS/WEEE compliant and carries UL 94V-0 flammability certification - confirming suitability for automated SMT assembly in commercial and industrial manufacturing environments.
TDS2211P.C Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 6-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Clamping:
- 28V
- Technology:
- Internal Switch
- Number of Circuits:
- 1
- Applications:
- USB
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (1.6x1.6)
TDS2211P.C FAQ
1.How can I place an order for TDS2211P.C through Aetrix?
Please submit a Request for Quotation (RFQ) for TDS2211P.C 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 TDS2211P.C reliable?
The price and inventory of TDS2211P.C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TDS2211P.C is usually 5 days.
3.What payment methods are accepted for TDS2211P.C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TDS2211P.C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TDS2211P.C?
TDS2211P.C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TDS2211P.C 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 TDS2211P.C?
For technical support, including TDS2211P.C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TDS2211P.C requirements.
6.How does Aetrix verify that TDS2211P.C is sourced from the original manufacturer or authorized distributors?
All TDS2211P.C 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 TDS2211P.C meets industry standards.
7.What is the process for return or replacement of TDS2211P.C?
All TDS2211P.C units undergo pre-shipment inspection (PSI). If there is an issue with TDS2211P.C, 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 TDS2211P.C part is unused and in its original packaging.
Return procedure for TDS2211P.C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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