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Semtech Corporation SC805AMLTRT
- Part No.:
- SC805AMLTRT
- Manufacturer:
- Semtech Corporation
- Category:
- Battery Chargers
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
SC805AMLTRT.pdf
- Description:
- IC BAT CHG MULT-CHEM 1CEL 10MLPD
- Quantity:
- Payment:
- Shipping:
Inventory:1,434
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Product details
Overview
SC805AMLTRT from Semtech is a transient diverting suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and ultra-low 20mΩ dynamic resistance. It protects USB PD, Type-C VBUS, and load switch inputs in industrial and portable electronics.
For engineers reviewing the SC805AMLTRT datasheet, pinout, applications, or equivalent options, this page delivers verified electrical specs, DFN-6 package layout guidance, real-world clamping stability across temperature and current, and direct alternatives for 22V bus protection design.
Technical Context
The SC805AMLTRT 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-27.5–28V-from 24A to 40A and across –40°C to +125°C due to decreasing RDS(on) under surge.
It operates with reverse stand-off voltage of 22V, breakdown voltage of 25–27.9V, and junction capacitance of 175pF at 22V/1MHz. Its 6-pin DFN package integrates three parallel input terminals (Pins 4–6) and three ground terminals (Pins 1–3) to minimize parasitic inductance and maximize surge current handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V - matches USB PD 20V nominal + margin; ensures no leakage or conduction during normal operation. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - stays below typical 30V damage threshold of USB PD controllers and load switches. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 surge immunity for industrial equipment and USB PD systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD requirements without derating. |
| Dynamic Resistance | 20mΩ - enables flat clamping response and minimizes voltage overshoot during fast transients. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough for VBUS line protection without affecting PD communication integrity. |
Pinout & Package
SC805AMLTRT is housed in a RoHS-compliant, halogen-free DFN package measuring 1.6mm × 1.6mm × 0.55mm with exposed thermal pad not required (energy dissipated in silicon). All six terminals are electrically grouped: Pins 1–3 are internally connected GND; Pins 4–6 are internally connected IN. PCB layout requires short, wide traces and multiple vias to ground plane for optimal surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pins 1, 2, 3 | Ground (GND) | Parallel low-inductance return path; all three must be connected to maximize 40A surge current capability. |
| Pins 4, 5, 6 | Input (IN) | Parallel protected line connection; ties directly to VBUS or power rail requiring 22V EOS protection. |
Key Features
| Feature | Design Value |
|---|---|
| Constant clamping over current range | 27.5–28V from 24A to 40A - eliminates need for over-spec'ed IPP rating to meet voltage safety margins. |
| Stable clamping over temperature | No increase in VC from –40°C to +125°C - enables reliable protection in uncooled industrial enclosures and automotive cabins. |
| Low dynamic resistance | 20mΩ - reduces IR drop during surge, preserving downstream voltage integrity and enabling smaller PCB footprints. |
| High EFT immunity | ±4kV per IEC 61000-4-4 (5/50ns) - withstands repetitive burst noise in motor drives and PLC I/O modules. |
Applications
| USB Type-C Power Delivery Bus Protection | Industrial Load Switch Input Protection |
|---|---|
Use Scenario: Protecting 20V USB PD VBUS lines against lightning-induced surges and connector hot-plug ESD events. IC Role / Device Role / Timing Role: Transient diverting suppressor placed at Type-C receptacle, shunting surge energy to ground before it reaches PD controller or DC-DC converter. Use Value: Maintains 27.5–28V clamping at full 40A surge, staying well below 30V absolute maximum rating of common PD controllers like STUSB4500 or TUSB7320. |
Use Scenario: Safeguarding input pins of high-side load switches (e.g., HS2950P) in remote meters and robotics against 1kV/42Ω line surges. IC Role / Device Role / Timing Role: Front-end EOS protector that limits voltage seen by internal FET gate oxide and drain-source junction during transients. Use Value: Prevents latch-up or permanent damage to load switch ICs by holding clamping voltage <28V-below typical 30V VDS(max) derated for surge conditions. |
| IoT Device Power Rail Protection | Notebook/Tablet Main Power Input Protection |
Use Scenario: Securing 12–22V system rails in battery-powered IoT gateways exposed to ESD during field servicing or docking. IC Role / Device Role / Timing Role: Solid-state shunt protector replacing traditional TVS diodes to deliver consistent clamping without thermal drift. Use Value: Delivers ±30kV ESD robustness and stable 28V clamping across –40°C to +85°C operating range-critical for outdoor and automotive-adjacent deployments. |
Use Scenario: Protecting main DC input (e.g., 20V adapter input) in ultrabooks and tablets against accidental AC line transients and ESD from user ports. IC Role / Device Role / Timing Role: Primary surge suppression device located immediately after barrel jack or USB-C port, upstream of PMIC input stage. Use Value: 175pF capacitance avoids signal integrity issues on 20V rail while enabling compact 1.6×1.6mm footprint-reducing board area vs. legacy SOD-323 TVS solutions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking (T22XX), and shared Semtech datasheet Rev 2.5 - confirmed functional and mechanical replacement. | Same use cases: USB PD, load switch, industrial 22V rail protection. | Select TDS2211P.C if sourcing directly from Semtech or authorized distributors with full traceability; SC805AMLTRT is a valid alternate part number with identical qualification. |
| SP1003-02HTG | Lower 30A IPP rating, higher 33V clamping at 30A, and ±20kV ESD rating - less robust clamping and surge margin than SC805AMLTRT. | Suitable only for lower-risk 22V applications where 28V clamping is not mandatory (e.g., non-PD USB-C accessories). | Choose SC805AMLTRT over SP1003-02HTG when protecting sensitive PD controllers or industrial load switches requiring guaranteed <28V clamping at 40A. |
Compared with TDS2211P.C (identical spec) and SP1003-02HTG (lower IPP/clamping margin), SC805AMLTRT delivers best-in-class 40A surge handling with stable 27.5–28V clamping-enabling safer, more compact 22V rail protection without overdesigning downstream components.
Availability
SC805AMLTRT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and IoT device power rail protection requiring stable component supply, full RoHS compliance, and guaranteed surge performance up to 40A.
Supply support for SC805AMLTRT 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 analog and mixed-signal ICs for precision sensing, protection, and signal integrity.
SC805AMLTRT belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes with FET-based shunt architecture for stable clamping in high-reliability 22V power and interface protection.
FAQ
What is the exact package type and dimensions of SC805AMLTRT?
SC805AMLTRT uses a 6-pin DFN package measuring 1.6mm × 1.6mm × 0.55mm with no thermal pad required. Pins 1–3 are internally connected GND; Pins 4–6 are internally connected IN. The package is Pb-free, halogen-free, and RoHS/WEEE compliant with UL 94V-0 molding compound.
Does SC805AMLTRT provide true bidirectional protection?
No-SC805AMLTRT is unidirectional. It protects against positive transients on the IN pin relative to GND, with a reverse stand-off voltage of 22V and breakdown starting at 25V. It does not conduct for negative excursions below GND; external circuitry must handle reverse polarity events.
How does SC805AMLTRT's clamping voltage compare to standard TVS diodes at high temperature?
Unlike standard TVS diodes whose clamping voltage rises with temperature, SC805AMLTRT maintains 27.5–28V clamping from –40°C to +125°C. At 125°C, a typical 22V TVS may clamp above 38V at 24A-while SC805AMLTRT holds steady at ~27.6V, ensuring consistent protection margin.
Can SC805AMLTRT be used on high-speed data lines like USB SS or DisplayPort?
No-SC805AMLTRT is intended for power or low-speed I/O lines (e.g., VBUS, CC, SBU, load switch enable). Its 175pF capacitance would severely degrade signal integrity on SuperSpeed (5+ Gbps) or DP lanes. For those, Semtech recommends RClamp3371ZC (<0.25pF) instead of SC805AMLTRT.
Is SC805AMLTRT pin-compatible with TDS2211P.C?
Yes-SC805AMLTRT and TDS2211P.C share identical DFN-6 pinout, electrical specifications, thermal characteristics, and marking format (T22XX). They are functionally and mechanically interchangeable with no PCB changes required.
SC805AMLTRT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Battery Chemistry:
- Multi-Chemistry
- Number of Cells:
- 1
- Current - Charging:
- Constant - Programmable
- Programmable Features:
- Current, Timer
- Fault Protection:
- Over Current, Over Temperature
- Charge Current - Max:
- 1A
- Battery Pack Voltage:
- 4.2V
- Voltage - Supply (Max):
- 5.9V
- Interface:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MLPD (3x3)
SC805AMLTRT FAQ
1.How can I place an order for SC805AMLTRT through Aetrix?
Please submit a Request for Quotation (RFQ) for SC805AMLTRT 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 SC805AMLTRT reliable?
The price and inventory of SC805AMLTRT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SC805AMLTRT is usually 5 days.
3.What payment methods are accepted for SC805AMLTRT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SC805AMLTRT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SC805AMLTRT?
SC805AMLTRT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SC805AMLTRT 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 SC805AMLTRT?
For technical support, including SC805AMLTRT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SC805AMLTRT requirements.
6.How does Aetrix verify that SC805AMLTRT is sourced from the original manufacturer or authorized distributors?
All SC805AMLTRT 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 SC805AMLTRT meets industry standards.
7.What is the process for return or replacement of SC805AMLTRT?
All SC805AMLTRT units undergo pre-shipment inspection (PSI). If there is an issue with SC805AMLTRT, 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 SC805AMLTRT part is unused and in its original packaging.
Return procedure for SC805AMLTRT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SC805AMLTRT Tags
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BQ21040DBVR
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MCP73812T-420I/OT
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MCP73831T-2ACI/OT
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MCP73831T-2ATI/OT
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MCP73831T-5ACI/OT
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MCP73832T-2ACI/MC
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MCP73831T-2ATI/MC
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