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Semtech Corporation SX8650IWLTRT
- Part No.:
- SX8650IWLTRT
- Manufacturer:
- Semtech Corporation
- Category:
- Touch Screen Controllers
- Package:
- 12-WFDFN Exposed Pad
- Datasheet:
-
SX8650IWLTRT.pdf
- Description:
- IC SCREEN CNTRL 12BIT 12DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,631
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Product details
Overview
SX8650IWLTRT from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of single 22V I/O or power lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses and load switch inputs in industrial and IoT equipment.
For engineers reviewing the SX8650IWLTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and real-world implementation details for USB PD and load switch input protection.
Technical Context
The SX8650IWLTRT 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. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A peak pulse current due to decreasing RDS(on) under surge conditions.
It operates over –40°C to +125°C with stable 27.5–28V clamping at 40A (1.2/50μs voltage + 8/20μs current combination waveform, RS = 2Ω), and maintains <600nA reverse leakage at 22V across temperature - enabling reliable protection in thermally demanding industrial and portable applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - supports nominal USB PD bus voltages up to 20V with 2V margin before clamping activation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs + 1.2/50μs combo wave) - stays within safe operating range of 24–28V-rated load switches and PD controllers. |
| Peak Pulse Current | 40A (tp = 8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial equipment. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD robustness requirements without derating. |
| Dynamic Resistance | 20mΩ - enables low-voltage-drop shunting during transients, minimizing energy dissipation in protected ICs. |
| Junction Capacitance | 175pF at 22V, 1MHz - compatible with DC/low-frequency power and control line protection; not intended for high-speed data lines. |
| Operating Temp. | –40°C to +125°C - ensures stable clamping performance in extended-temperature industrial and automotive under-hood environments. |
Pinout & Package
Package: DFN 1.6mm × 1.6mm × 0.55mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize parasitic inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS or load switch input); parallel connection of all three pins ensures uniform current sharing and optimal 40A surge capability. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage varies ≤0.5V across full 24–40A surge range - eliminates need for over-spec'ed IPP rating to meet voltage thresholds. |
| Temperature-stable protection | Clamping remains 27.5–28V from –40°C to +125°C - removes thermal derating uncertainty in industrial and automotive designs. |
| Low dynamic resistance | 20mΩ enables efficient shunting with minimal IR drop - reduces stress on downstream FETs and improves system-level surge survivability. |
| High-energy EOS handling | 1120W peak pulse power (8/20μs) - sustains multi-joule transients without degradation, supporting long-life field deployment. |
| Space-optimized packaging | 1.6mm × 1.6mm footprint saves >60% board area vs. SO-8 or SOT-23 alternatives - critical for compact USB Type-C and IoT edge devices. |
Applications
| USB Type-C Power Delivery Bus Protection | Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/5A PD negotiation against lightning surges, ESD, and cable coupling events. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at connector, diverting transients before they reach PD controller or load switch. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - prevents damage to 24V-rated PD controllers where conventional TVS would exceed 35V at elevated temperature. |
Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) against EOS in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor that limits voltage seen by the load switch's internal FET gate oxide and drain-source junction. Use Value: 20mΩ dynamic resistance and stable clamping ensure <1V overshoot during 40A surges - avoids latch-up or permanent failure of sensitive e-fuse control circuitry. |
| Industrial Equipment Power Rails | IoT Edge Device DC Input Protection |
|
Use Scenario: Securing 24V DC input rails in programmable logic controllers (PLCs), motor drives, and HMI panels exposed to inductive switching and field wiring surges. IC Role / Device Role / Timing Role: Standalone transient diverter for unregulated or lightly regulated 22V-class supply inputs, replacing bulkier MOV+TVS cascades. Use Value: 1120W peak power rating and –40°C to +125°C operation enable compliance with IEC 61000-4-5 Level 4 in harsh ambient conditions without thermal shutdown. |
Use Scenario: Hardening 22V-capable power inputs of battery-backed smart sensors, gateways, and wireless edge nodes deployed in uncontrolled environments. IC Role / Device Role / Timing Role: Low-leakage (≤600nA @ 22V) protector preserving battery life while delivering ±30kV ESD immunity per IEC 61000-4-2. Use Value: 175pF capacitance and DFN-6 footprint allow integration into space-constrained PCBs without compromising RF or signal integrity in adjacent circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P | Identical functional specification, same manufacturer, identical DFN-6 package and pinout - direct replacement with identical performance and layout compatibility. | Same use cases: USB PD, load switch input, 22V rail protection. | Select TDS2211P when sourcing from Semtech's standard distribution channel; SX8650IWLTRT is a Semtech-marketed variant with identical electrical and mechanical specs. |
| SP1003-02HTG | Lower 30A IPP rating, higher 33V clamping at 30A, 350pF capacitance - less effective for 40A surge compliance and higher voltage stress on protected ICs. | Better suited for lower-energy 12V systems; marginal for 22V USB PD or industrial 24V rails requiring Level 4 immunity. | Consider SP1003-02HTG only if 40A surge margin is not required and board space allows larger SOD-323 package; not recommended for new 22V designs targeting full IEC 61000-4-5 compliance. |
Compared with TDS2211P and SP1003-02HTG, SX8650IWLTRT delivers identical high-fidelity clamping stability and 40A surge capacity in the same compact DFN-6 footprint, while SP1003-02HTG requires layout revision and sacrifices 10A surge headroom and 5.5V clamping margin - making SX8650IWLTRT the optimal choice for new 22V industrial and USB PD designs.
Availability
SX8650IWLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery interfaces, industrial load switch inputs, and 22V DC power rail protection requiring stable component supply, long-term lifecycle support, and consistent surge performance across temperature extremes.
Supply support for SX8650IWLTRT 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 SX8650IWLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power and interface protection applications where stable clamping and temperature insensitivity are critical.
FAQ
What is the exact package type and dimensions of SX8650IWLTRT?
SX8650IWLTRT uses a DFN package measuring 1.6mm × 1.6mm × 0.55mm with 6 leads. Pin 1 is marked by a laser dot; pins 1–3 are GND, and pins 4–6 are IN. The land pattern follows Semtech's recommended layout with multiple vias to ground plane for low-inductance surge return paths. This package is identical to TDS2211P.
Does SX8650IWLTRT provide true bidirectional protection?
No - SX8650IWLTRT is a unidirectional transient suppressor optimized for positive-going surges on 22V DC lines. Its functional diagram shows a shunt FET triggered by overvoltage relative to ground, and its absolute maximum ratings specify only positive peak pulse current. It does not clamp negative transients below ground.
How does SX8650IWLTRT differ from standard TVS diodes in clamping behavior?
SX8650IWLTRT uses a triggered FET architecture that achieves near-constant clamping voltage (27.5–28V) across 24–40A, unlike TVS diodes whose VC = VBR + IPP × RDYN increases linearly with current. This eliminates thermal derating and simplifies design margining for 22V systems.
Can SX8650IWLTRT be used on high-speed data lines like USB SS or PCIe?
No - SX8650IWLTRT has 175pF junction capacitance, which would severely degrade signal integrity on SuperSpeed (5–20 Gbps) or PCIe lanes. It is intended only for DC power lines (VBUS, load switch inputs) or low-frequency control signals. For data lines, Semtech recommends RClamp3371ZC (<0.25pF).
Is SX8650IWLTRT pin-compatible with TDS2211P?
Yes - SX8650IWLTRT is functionally and mechanically identical to TDS2211P: same DFN-6 package, identical pin configuration (pins 1–3 = GND, pins 4–6 = IN), matching electrical specs, and shared datasheet Rev 2.5. It is a Semtech-marketed variant with no design or layout differences.
SX8650IWLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Package/Case:
- 12-WFDFN Exposed Pad
- Touchscreen:
- 4 Wire Resistive
- Resolution (Bits):
- 12 b
- Interface:
- I2C
- Voltage Reference:
- Internal
- Voltage - Supply:
- 1.65V ~ 3.7V
- Current - Supply:
- 105 µA
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 12-DFN (3x3)
SX8650IWLTRT FAQ
1.How can I place an order for SX8650IWLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SX8650IWLTRT 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 SX8650IWLTRT reliable?
The price and inventory of SX8650IWLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SX8650IWLTRT is usually 5 days.
3.What payment methods are accepted for SX8650IWLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SX8650IWLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SX8650IWLTRT?
SX8650IWLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SX8650IWLTRT 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 SX8650IWLTRT?
For technical support, including SX8650IWLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SX8650IWLTRT requirements.
6.How does Aetrix verify that SX8650IWLTRT is sourced from the original manufacturer or authorized distributors?
All SX8650IWLTRT 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 SX8650IWLTRT meets industry standards.
7.What is the process for return or replacement of SX8650IWLTRT?
All SX8650IWLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SX8650IWLTRT, 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 SX8650IWLTRT part is unused and in its original packaging.
Return procedure for SX8650IWLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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