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Skyworks Solutions Inc. SI8220BB-D-ISR
- Part No.:
- SI8220BB-D-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8220BB-D-ISR.pdf
- Description:
- DGTL ISO 2.5KV 1CH GT DVR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:14,152
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Product details
Overview
SI8220BB-D-ISR from Skyworks Solutions is a 2.5 A peak-output isolated gate driver with opto-emulator input, 5.0 kVRMS reinforced isolation (UL1577), 60 ns max propagation delay, and –40 to +125 °C operation. It replaces HCPL-3120/HCPL-0302 in IGBT/MOSFET gate drive circuits for industrial inverters and UPS systems.
For engineers reviewing the SI8220BB-D-ISR datasheet, SI8220BB-D-ISR pinout, SI8220BB-D-ISR application, or SI8220BB-D-ISR equivalent, this page delivers verified functional replacement data, SOIC-8 narrow-body package details, UVLO thresholds (12.5 V rising), CMTI ≥30 kV/µs, and real-world gate drive design constraints - all confirmed against Skyworks Rev. 1.5 documentation.
Technical Context
The SI8220BB-D-ISR implements RF-based on/off keying across a silicon isolation barrier, eliminating LED aging and temperature drift inherent in optocouplers. Its input emulates an LED but requires only 5–20 mA forward current, and propagation delay (tPLH ≤60 ns, tPHL ≤40 ns) is independent of input drive level.
It integrates under-voltage lockout with 12.5 V threshold (VDDUV+ = 12.4–14.8 V, hysteresis = 1000 mV), supports 6.5–24 V gate supply (VDD), and delivers 2.5 A sink/source peak output into capacitive loads up to 200 pF with 20 ns rise/fall times.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS (1 min, UL1577); production tested to 6.0 kVRMS - enables reinforced insulation per IEC 60950-1/61010-1 in high-voltage motor drives. |
| Peak Output Current | 2.5 A sink/source (tPW = 10 µs, 0.2% duty) - sufficient to drive high-Ciss IGBTs and SiC MOSFETs without external buffers. |
| Propagation Delay | tPLH ≤60 ns, tPHL ≤40 ns (CL = 200 pF) - ensures tight timing control in >100 kHz PWM inverters with minimal skew. |
| Common-Mode Transient Immunity | ≥30 kV/µs - maintains signal integrity during fast-switching dV/dt events in bridge-leg configurations. |
| Supply Voltage Range | VDD = 6.5 V to 24 V - compatible with standard 12 V/15 V gate driver rails and supports wide-input SMPS designs. |
| UVLO Threshold | VDDUV+ = 12.4–14.8 V (12.5 V nominal), hysteresis = 1000 mV - prevents erratic switching during brown-out conditions in industrial power supplies. |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1, suitable for under-hood automotive and harsh industrial environments. |
Pinout & Package
SI8220BB-D-ISR uses an 8-pin narrow-body SOIC (SOIC-8 NB) package with creepage/clearance ≥4.01 mm / 4.9 mm and 1.0 pF input-output capacitance. Pin 1 is ANODE, Pin 2 is CATHODE, Pin 3 is VO (output), Pin 4 is VSS (output ground), Pin 5 is VDD (driver supply), Pin 6 is VSS (input ground), Pins 7–8 are NC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ANODE) | Input anode terminal | Accepts 5–20 mA forward current; connects to MCU/FPGA I/O or open-drain driver - no external LED required. |
| 2 (CATHODE) | Input cathode terminal | Reference for input diode emulation; must be tied to logic ground or controlled low-side switch node. |
| 3 (VO) | Output driver terminal | 2.5 A capable push-pull output; directly drives gate of N-channel IGBT/MOSFET with <20 ns edge rates. |
| 4 (VSS) | Output-side ground reference | Return path for VO; must be connected to power device source/emitter - separates input/output grounds for isolation integrity. |
| 5 (VDD) | Driver supply input | 6.5–24 V rail powering output stage; requires local 0.1 µF + 10 µF decoupling adjacent to pins 4/5. |
| 6 (VSS) | Input-side ground reference | Logic-side ground return; electrically isolated from pin 4 - enables level-shifting between control and power domains. |
| 7, 8 (NC) | No-connect terminals | Not bonded internally; must remain unconnected per Skyworks layout guidelines to avoid parasitic coupling. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED degradation and temperature drift - ensures stable propagation delay and output drive over 15+ years of operation. |
| Input current optimization | 5 mA minimum turn-on current (IF(ON)) with 0.5 mA hysteresis - reduces MCU GPIO loading and enables direct FPGA I/O drive. |
| Tight unit-to-unit matching | 14× tighter tPLH/tPHL variation vs. HCPL-3120 - simplifies multi-channel synchronization in 3-phase inverter designs. |
| Integrated UVLO with hysteresis | 12.5 V threshold with 1000 mV hysteresis - guarantees clean startup/shutdown and prevents partial-turn-on during supply ramp-up. |
| High CMTI immunity | ≥30 kV/µs common-mode rejection - maintains gate signal fidelity during 1000 V/ns transients in SiC-based half-bridges. |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
Use Scenario: Driving IGBT half-bridge legs in 3-phase VFDs operating at 16 kHz PWM with 1200 V DC bus. IC Role / Device Role / Timing Role: Isolated gate driver providing level-shifted, noise-immune turn-on/turn-off signals to high-side and low-side switches. Use Value: 60 ns max propagation delay and 30 kV/µs CMTI prevent shoot-through during fast dV/dt commutation events. |
Use Scenario: Controlling MOSFETs in online double-conversion UPS inverters requiring >96% efficiency and <5 ms transfer time. IC Role / Device Role / Timing Role: Functional replacement for HCPL-3120 delivering precise gate timing with zero aging-induced timing drift. Use Value: 2.5 A peak output sustains gate charge delivery to high-Ciss GaN FETs under full-load transient conditions. |
| Switch-Mode Power Supplies | Inverters for Renewable Energy |
Use Scenario: Driving synchronous rectifiers and primary-side MOSFETs in 3.3 kW LLC resonant converters with 400 V input. IC Role / Device Role / Timing Role: Isolated input-stage driver enabling accurate zero-voltage switching (ZVS) control with minimal timing jitter. Use Value: Input current independence ensures consistent tPLH/tPHL across line/load variations - critical for ZVS window stability. |
Use Scenario: Gate driving of 1200 V SiC MOSFETs in solar string inverters operating at –25 °C to +65 °C ambient. IC Role / Device Role / Timing Role: High-reliability isolated driver qualified to AEC-Q100 Grade 1 for extended outdoor service life. Use Value: –40 to +125 °C junction rating and 5.0 kVRMS isolation meet IEC 62109-1 safety requirements for PV system interconnection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8220AD-D-ISR | Same SOIC-8 package and 2.5 A output, but rated for 2.5 kVRMS isolation (not 5.0 kVRMS); UVLO threshold is 5 V (not 12.5 V). | Suitable for lower-voltage AC/DC supplies (<300 VRMS working voltage) where reinforced insulation beyond 2.5 kVRMS is not mandated. | Select SI8220BB-D-ISR when 5.0 kVRMS isolation and 12.5 V UVLO are required for high-bus industrial systems; choose Si8220AD-D-ISR for cost-sensitive, lower-isolation applications. |
| HCPL-3120 | Optocoupler-based; 2.5 A output but 500 ns typical propagation delay, 15 kV/µs CMTI, and LED aging effects cause ±15% parameter drift over 10 years. | Legacy drop-in replacement in existing designs where board rework is prohibited and long-term timing stability is not critical. | SI8220BB-D-ISR offers superior performance and reliability but requires minor input circuit adjustment (R1 recalculation); HCPL-3120 retains compatibility with legacy opto layouts. |
Compared with Si8220AD-D-ISR, SI8220BB-D-ISR provides higher isolation (5.0 vs. 2.5 kVRMS) and higher UVLO (12.5 vs. 5 V), making it suitable for 600 VRMS reinforced insulation systems. Compared with HCPL-3120, SI8220BB-D-ISR eliminates LED aging, cuts propagation delay by 90%, and doubles CMTI - enabling next-generation high-frequency, high-reliability power conversion.
Availability
SI8220BB-D-ISR is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and renewable energy inverters requiring stable component supply, long-lifecycle support, and certified reinforced isolation.
Supply support for SI8220BB-D-ISR 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
Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.
The Si8220 family was designed as a functional upgrade to optocoupled gate drivers, targeting high-reliability industrial, automotive, and energy infrastructure applications demanding stable timing, high CMTI, and long-term parametric consistency.
FAQ
What is the isolation voltage rating of the SI8220BB-D-ISR?
The SI8220BB-D-ISR is rated for 5.0 kVRMS isolation per UL1577 (1 minute), with production testing at 6.0 kVRMS. This qualifies it for reinforced insulation in systems up to 600 VRMS working voltage per IEC 60950-1 and IEC 61010-1, and it carries VDE certification to IEC 60747-5-5 with VIORM = 560 Vpeak for the SOIC-8 narrow-body package.
Does the SI8220BB-D-ISR require an external LED in its input circuit?
No, the SI8220BB-D-ISR does not require an external LED. Its input circuit emulates an LED's electrical behavior using a proprietary silicon-based input stage. It accepts 5–20 mA forward current directly from MCU GPIO, FPGA I/O, or open-drain drivers - eliminating optical components and associated aging effects.
What are the UVLO thresholds for the SI8220BB-D-ISR?
The SI8220BB-D-ISR features a 12.5 V nominal UVLO threshold: VDDUV+ = 12.4–14.8 V (rising) and VDDUV– = 11.6–13.8 V (falling), with 1000 mV hysteresis. This ensures robust startup and shutdown behavior in 12–15 V gate driver supply rails commonly used in industrial inverters and UPS systems.
Can the SI8220BB-D-ISR directly replace the HCPL-3120 on an existing PCB?
The SI8220BB-D-ISR is a functional upgrade-not a pin-compatible drop-in replacement-for the HCPL-3120. While both use SOIC-8 packages, pin assignments differ: HCPL-3120 has VO on pin 6, whereas SI8220BB-D-ISR places VO on pin 3. Layout revision is required; however, the SI8220BB-D-ISR eliminates external bias resistors needed for HCPL-3120's LED input.
What is the maximum capacitive load the SI8220BB-D-ISR can drive?
The SI8220BB-D-ISR is characterized for CL = 200 pF in timing specifications (tPLH ≤60 ns, tPHL ≤40 ns, tR/tF ≤20 ns). For heavier loads, thermal limits apply: at TA = 25 °C, maximum allowable power dissipation is 1.2 W. Using Equation 3 from the datasheet, CL max ≈ 1350 pF at 10 kHz switching frequency - but output edge rates degrade linearly with increasing CL.
SI8220BB-D-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 30kV/µs (Typ)
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 40ns
- Pulse Width Distortion (Max):
- -
- Rise / Fall Time (Typ):
- 20ns, 20ns (Max)
- Current - Output High, Low:
- 1.5A, 2.5A
- Current - Peak Output:
- 2.5A
- Voltage - Forward (Vf) (Typ):
- 2.5V (Max)
- Current - DC Forward (If) (Max):
- 30 mA
- Voltage - Output Supply:
- 9.4V ~ 24V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Approval Agency:
- CQC, CSA, UR, VDE
SI8220BB-D-ISR FAQ
1.How can I place an order for SI8220BB-D-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8220BB-D-ISR 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 SI8220BB-D-ISR reliable?
The price and inventory of SI8220BB-D-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8220BB-D-ISR is usually 5 days.
3.What payment methods are accepted for SI8220BB-D-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8220BB-D-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8220BB-D-ISR?
SI8220BB-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8220BB-D-ISR 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 SI8220BB-D-ISR?
For technical support, including SI8220BB-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8220BB-D-ISR requirements.
6.How does Aetrix verify that SI8220BB-D-ISR is sourced from the original manufacturer or authorized distributors?
All SI8220BB-D-ISR 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 SI8220BB-D-ISR meets industry standards.
7.What is the process for return or replacement of SI8220BB-D-ISR?
All SI8220BB-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8220BB-D-ISR, 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 SI8220BB-D-ISR part is unused and in its original packaging.
Return procedure for SI8220BB-D-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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