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Vishay Siliconix SI1865DL-T1-E3
- Part No.:
- SI1865DL-T1-E3
- Manufacturer:
- Vishay Siliconix
- Package:
- 6-TSSOP, SC-88, SOT-363
- Datasheet:
-
SI1865DL-T1-E3.pdf
- Description:
- IC PWR SWITCH P-CHAN 1:1 SC70-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,003
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Product details
Overview
SI1865DL-T1-E3 from Vishay Siliconix is a dual-MOSFET load switch IC integrating a p-channel TrenchFET® (RDS(on) = 0.215 Ω at VIN = 4.5 V) and an n-channel level-shift driver in SC70-6. It operates from 1.8 V to 8 V input, supports logic-level control down to 1.5 V, delivers up to 1.2 A load current, and enables adjustable slew-rate via external R2/C1 for portable high-side switching.
For engineers reviewing the SI1865DL-T1-E3 datasheet, SI1865DL-T1-E3 pinout, SI1865DL-T1-E3 application, or SI1865DL-T1-E3 equivalent, key selection factors include its dual-FET architecture with integrated level-shift, programmable turn-on timing, low-voltage logic compatibility, and thermal performance in space-constrained SC70-6 packaging.
Technical Context
The SI1865DL-T1-E3 implements a high-side load-switch topology where the p-channel MOSFET handles main power path conduction while the n-channel MOSFET acts as a level-shifting gate driver-enabling direct interface with low-voltage logic (≥1.5 V) to control higher VIN rails. Its internal ESD protection (2000 V HBM) and adjustable slew-rate via external R2/C1 provide robustness and EMI control.
This device requires no external level-shifter IC or discrete transistor stage: the n-channel FET's source connects to VIN, drain drives the p-channel gate, and its gate accepts logic-level ON/OFF signals. Slew rate is set by R2 between gate and source of the n-channel FET, allowing rise-time tuning across load capacitance and current levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 1.8 V to 8 V - supports single-supply operation across modern low-voltage microcontrollers and legacy 3.3/5 V systems. |
| RDS(on) (p-FET) | 0.215 Ω at VIN = 4.5 V, ID = 1.2 A - limits voltage drop to ≤0.26 V at full load, reducing power loss and thermal stress. |
| Logic Threshold | 1.5 V min VON/OFF - compatible with 1.8 V GPIOs without level translation, enabling direct MCU control. |
| Max Load Current | ±1.2 A continuous - sufficient for USB peripherals, display backlights, and sensor modules in portable electronics. |
| ESD Rating | 2000 V HBM on ON/OFF pin - protects against handling-induced transients during board assembly and field use. |
| Slew Control | Externally adjustable via R2 (0–100 kΩ) and optional C1 (1000 pF) - allows optimization of inrush current and EMI for diverse capacitive loads. |
Pinout & Package
SC70-6 package: 1.3 mm × 2.1 mm footprint, 0.95 mm height, 6-pin surface-mount, lead (Pb)-free per RoHS Directive 2002/95/EC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Main input supply rail connection for both FETs; powers load and level-shift circuitry. |
| 2, 3 | GND | Common source reference for n-channel FET and return path for load current. |
| 4 | VOUT | High-side switched output; connects to load anode or positive terminal. |
| 5 | ON/OFF | Logic-level enable input; active-high signal controls n-channel gate to drive p-channel gate. |
| 6 | NC | No internal connection - left unconnected per datasheet; not used for thermal or electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-FET integration | Eliminates need for external level-shifter or driver transistor, reducing BOM count and PCB area in portable designs. |
| Adjustable slew-rate | External R2 sets dV/dt on VOUT, preventing inrush current spikes into large capacitive loads (e.g., USB ports, LCD bias rails). |
| TrenchFET® technology | Delivers 0.215 Ω RDS(on) at 4.5 V with minimal gate charge, enabling fast, efficient switching at low voltages. |
| Low-voltage logic compatibility | Guaranteed turn-on with 1.5 V logic signals ensures interoperability with ultra-low-power MCUs and battery-monitoring ICs. |
Applications
| Smartphone Power Management | Wearable Sensor Hub |
|---|---|
Use Scenario: Enabling/disabling camera module or flash LED during burst capture sequences to minimize system-wide voltage droop. IC Role / Device Role / Timing Role: High-side load switch controlling 3.3 V or 5 V rail to camera subsystem; slew rate tuned to limit inrush into decoupling caps. Use Value: Prevents brownout of baseband processor during flash activation by limiting peak current to <1.2 A with controlled dI/dt. | Use Scenario: Isolating BLE radio or environmental sensor supply during deep-sleep mode to reduce quiescent current. IC Role / Device Role / Timing Role: Low-leakage (1 µA max OFF-state) high-side switch driven directly by 1.8 V MCU GPIO without level shifter. Use Value: Achieves sub-µA system sleep current by cutting off sensor rail leakage paths while maintaining fast wake-up response. |
| USB-C Peripheral Docking | Industrial Handheld Terminal |
Use Scenario: Controlling VBUS delivery to downstream USB devices after CC detection and power negotiation. IC Role / Device Role / Timing Role: High-side switch on 5 V rail with adjustable rise time to meet USB 2.0 inrush specifications (≤10 µF load). Use Value: Complies with USB Electrical Specification by limiting dV/dt to avoid false over-current detection in host controller. | Use Scenario: Managing power to barcode scanner engine or RFID reader module activated on demand. IC Role / Device Role / Timing Role: Robust 1.2 A load switch with 2000 V HBM ESD protection on ON/OFF line, suitable for harsh industrial ESD environments. Use Value: Survives repeated electrostatic discharge events common in warehouse or factory settings without latch-up or degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar load-switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS22915YZTT | Single p-channel load switch (no integrated level-shift); requires external 1.8 V logic or level translator for sub-2.5 V control. | Lacks slew-rate adjustability; fixed rise time (~100 µs) limits flexibility with varying load capacitance. | Choose when only basic on/off control is needed and board space permits external level-shifter or higher-VIN logic interface. |
| AP22653AW5-7 | Integrated level-shift and slew control like SI1865DL-T1-E3, but rated for 2.5 A and uses SOT-26 package (larger than SC70-6). | Higher current capability suits larger loads but occupies ~2.5× more PCB area; thermal resistance differs significantly. | Prefer when >1.2 A load current or enhanced thermal margin is required, and SC70-6 size constraint does not apply. |
Compared with TPS22915YZTT and AP22653AW5-7, the SI1865DL-T1-E3 uniquely balances ultra-compact SC70-6 footprint, integrated level-shift, and externally tunable slew rate-making it optimal for space-limited, low-voltage, and EMI-sensitive portable designs where precise inrush control is critical.
Availability
SI1865DL-T1-E3 is available at Aetrix Electronics and suitable for smartphone power management, wearable sensor hubs, USB-C peripheral docking, industrial handheld terminals, and portable medical monitors requiring stable component supply and long-term production continuity.
Supply support for SI1865DL-T1-E3 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
Vishay Siliconix is a global leader in discrete semiconductors, specializing in MOSFETs, diodes, optoelectronics, and passive components with emphasis on power efficiency, reliability, and miniaturization.
The Si1865DL series belongs to Vishay's high-density load-switch portfolio, designed specifically for space-constrained portable electronics needing integrated level-shift, low-voltage logic compatibility, and controllable inrush current management.
FAQ
What is the maximum continuous load current supported by the SI1865DL-T1-E3?
The SI1865DL-T1-E3 supports ±1.2 A continuous load current under typical conditions (TA = 25 °C, VIN = 4.5 V). Derating applies above 25 °C ambient due to thermal resistance (RthJA = 320 °C/W max); at 70 °C ambient, usable current drops to approximately 0.9 A to maintain junction temperature below 150 °C. The SI1865DL-T1-E3 datasheet specifies absolute maximum ratings and thermal derating curves for precise design margining.
Does the SI1865DL-T1-E3 require an external pull-up resistor on the ON/OFF pin?
Yes, the SI1865DL-T1-E3 requires an external pull-up resistor (R1) on the ON/OFF pin to ensure reliable turn-on of the n-channel level-shift FET. Typical values range from 10 kΩ to 1 MΩ; Vishay recommends ≥10× R2 value to guarantee Q1 gate drive strength. Without R1, the ON/OFF node floats during power-up, risking undefined state or delayed turn-on. This requirement is explicitly defined in the SI1865DL-T1-E3 functional block diagram and application circuits.
Can the SI1865DL-T1-E3 operate with a 1.8 V logic signal driving the ON/OFF pin?
Yes, the SI1865DL-T1-E3 is fully specified for 1.5 V to 8 V logic-level control, including reliable operation with 1.8 V GPIO signals. At VON/OFF = 1.8 V, the n-channel FET achieves sufficient VGS to fully enhance and drive the p-channel gate, ensuring low RDS(on) conduction. This capability is verified in the SI1865DL-T1-E3 datasheet's "ON Characteristics" table and enables direct interfacing with 1.8 V microcontrollers without level translation.
What is the purpose of the NC pin (Pin 6) on the SI1865DL-T1-E3 SC70-6 package?
Pin 6 of the SI1865DL-T1-E3 is designated NC (No Connection) and has no internal bond wire or silicon connection. It must be left unconnected on the PCB per Vishay's datasheet guidance. This pin is not used for thermal dissipation, grounding, or any electrical function; routing traces or soldering to Pin 6 may cause unintended shorts or mechanical stress. The SI1865DL-T1-E3 functional block diagram and package drawing confirm its isolation from all internal circuitry.
How does the SI1865DL-T1-E3 achieve adjustable slew-rate, and what components are required?
The SI1865DL-T1-E3 achieves adjustable slew-rate via external resistor R2 placed between the gate and source of its internal n-channel FET. R2 (0–100 kΩ typical) controls the gate charging time, thereby setting VOUT rise time; optional capacitor C1 (1000 pF typical) adds further filtering. These components are external to the SI1865DL-T1-E3 die and are shown in the official application schematic. Values are selected based on load capacitance and desired dV/dt, with characterization data provided in the SI1865DL-T1-E3 typical characteristics plots.
SI1865DL-T1-E3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay Siliconix
- Package/Case:
- 6-TSSOP, SC-88, SOT-363
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Type:
- General Purpose
- Number of Outputs:
- 1
- Ratio - Input:Output:
- 1:1
- Output Configuration:
- High Side
- Output Type:
- P-Channel
- Interface:
- On/Off
- Voltage - Load:
- 1.8V ~ 8V
- Voltage - Supply (Vcc/Vdd):
- -
- Current - Output (Max):
- 1.2A
- Rds On (Typ):
- 180mOhm
- Input Type:
- -
- Features:
- Slew Rate Controlled
- Fault Protection:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-6
SI1865DL-T1-E3 FAQ
1.How can I place an order for SI1865DL-T1-E3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI1865DL-T1-E3 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 SI1865DL-T1-E3 reliable?
The price and inventory of SI1865DL-T1-E3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI1865DL-T1-E3 is usually 5 days.
3.What payment methods are accepted for SI1865DL-T1-E3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI1865DL-T1-E3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI1865DL-T1-E3?
SI1865DL-T1-E3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI1865DL-T1-E3 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 SI1865DL-T1-E3?
For technical support, including SI1865DL-T1-E3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI1865DL-T1-E3 requirements.
6.How does Aetrix verify that SI1865DL-T1-E3 is sourced from the original manufacturer or authorized distributors?
All SI1865DL-T1-E3 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 SI1865DL-T1-E3 meets industry standards.
7.What is the process for return or replacement of SI1865DL-T1-E3?
All SI1865DL-T1-E3 units undergo pre-shipment inspection (PSI). If there is an issue with SI1865DL-T1-E3, 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 SI1865DL-T1-E3 part is unused and in its original packaging.
Return procedure for SI1865DL-T1-E3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI1865DL-T1-E3 Tags
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MIC2091-1YM5-TR
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MIC2090-1YM5-TR
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TPS22995RZFR
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SIP32510DT-T1-GE3
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ULN2003D1013TR
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MIC2005A-1YM5-TR
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