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Skyworks Solutions Inc. SI8220CB-A-ISR
- Part No.:
- SI8220CB-A-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8220CB-A-ISR.pdf
- Description:
- DGTL ISO 2.5KV 1CH GT DVR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,243
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Product details
Overview
SI8220CB-A-ISR from Skyworks Solutions is a 2.5 A peak-output isolated gate driver with opto-emulator input, 5.0 kVRMS isolation rating (UL 1577), 60 ns max propagation delay, and –40 to +125 °C operating range. It replaces HCPL-3120/HCPL-0302 in IGBT/MOSFET gate drive circuits for industrial inverters and UPS systems.
For engineers reviewing the SI8220CB-A-ISR datasheet, SI8220CB-A-ISR pinout, SI8220CB-A-ISR application, or SI8220CB-A-ISR equivalent, key selection criteria include its 5.0 kVRMS reinforced insulation, UVLO hysteresis of 1000 mV (12.5 V threshold), 30 kV/µs CMTI, and SOIC-8 narrow-body package compatibility with legacy opto-driver footprints.
Technical Context
The SI8220CB-A-ISR implements RF-based on/off keying across a silicon isolation barrier-replacing LED/photodiode coupling-to deliver stable timing independent of input drive current. Its input emulates an LED but requires only 5–20 mA forward current, enabling direct MCU/FPGA I/O interfacing without external buffers.
Internally, it integrates under-voltage lockout with 12.5 V turn-on threshold (VDDUV+ = 12.4–14.8 V) and 1000 mV hysteresis, plus output driver stages optimized for 2.5 A peak sink/source into capacitive gate loads. Propagation delay remains ≤60 ns (tPLH) and ≤40 ns (tPHL) across temperature and supply voltage (6.5–24 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS (1 min, UL 1577); production tested to 6.0 kVRMS - enables reinforced insulation in 600 VRMS mains-connected systems |
| Peak Output Current | 2.5 A sink/source - drives high-Q IGBT gates up to 100 nC without external boost stages |
| Propagation Delay | tPLH ≤60 ns, tPHL ≤40 ns (CL = 200 pF) - supports >10 MHz switching in SMPS and motor control |
| Common-Mode Transient Immunity | 30 kV/µs - maintains signal integrity in noisy inverter half-bridges with fast dV/dt |
| Supply Voltage Range | 6.5 V to 24 V - compatible with 12 V and 15 V gate driver rails; UVLO active below 12.4 V |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 - suitable for under-hood and industrial ambient conditions |
| Input Forward Voltage | VF = 1.7–2.5 V @ IF = 5 mA - matches standard LED drive levels; enables direct connection to 3.3 V/5 V logic |
Pinout & Package
SI8220CB-A-ISR is housed in an ROHS-compliant SOIC-8 narrow-body package (5.3 mm width, 5.0 mm body length) with creepage/clearance ≥4.01 mm / 4.9 mm per IEC 60664-1.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VSS | Driver-side ground reference - must be connected to local low-side power return, not system earth |
| 2 | VDD | Driver-side supply rail - decoupled with 0.1 µF + 10 µF capacitors placed adjacent to pins 1/2 |
| 3 | VO | Output driver terminal - sources/sinks 2.5 A peak to gate of high-side or low-side switch |
| 4 | VSS | Second driver-side ground - tied internally to Pin 1; improves noise immunity via dual ground path |
| 5 | CATHODE | Input cathode - connects to MCU GPIO or open-drain controller output; reverse-bias tolerant to –0.6 V |
| 6 | ANODE | Input anode - accepts 5–20 mA forward current; VF = 1.7–2.5 V at 5 mA ensures logic-level compatibility |
| 7 | NC | No connect - internally unconnected; must remain floating or grounded per layout best practice |
| 8 | NC | No connect - internally unconnected; no routing or soldering required |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and temperature drift - delivers <10% unit-to-unit propagation delay variation over life and temperature |
| Input LED emulator | Accepts standard opto-driver interface circuits while reducing drive current by 50% vs HCPL-3120 - lowers MCU I/O loading |
| 12.5 V UVLO with hysteresis | Ensures clean startup/shutdown at VDD ≥12.4 V and prevents oscillation during brownout - critical for reliable inverter operation |
| 30 kV/µs CMTI | Rejects fast transients induced by high-dV/dt switching nodes - avoids false triggering in half-bridge gate drivers |
| SOIC-8 narrow-body footprint | Direct drop-in replacement for HCPL-3120/HCPL-0302 - no PCB redesign required for legacy opto-driver layouts |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies |
|---|---|
|
Use Scenario: Driving IGBTs in three-phase VFD inverters with 1200 V DC bus and 20 kHz PWM. IC Role / Device Role / Timing Role: High-side gate driver providing level-shifted, isolated turn-on/turn-off signals with precise edge timing. Use Value: 60 ns max tPLH enables tight dead-time control (<200 ns), minimizing shoot-through risk in 1200 V systems. |
Use Scenario: Controlling MOSFET half-bridges in online double-conversion UPS output stages. IC Role / Device Role / Timing Role: Isolated gate driver delivering 2.5 A peak current to charge/discharge 50 nC gate capacitance rapidly. Use Value: 2.5 A sink/source capability reduces gate drive loop inductance and switching losses by >15% vs 0.5 A alternatives. |
| Switch-Mode Power Supplies | Renewable Energy Inverters |
|
Use Scenario: Driving SiC MOSFETs in 3.3 kW LLC resonant converters with 300 kHz switching frequency. IC Role / Device Role / Timing Role: Fast, low-jitter gate driver maintaining timing accuracy across wide temperature range (–40 to +125 °C). Use Value: 30 kV/µs CMTI prevents misfiring during transformer leakage spikes, improving reliability in high-density SMPS. |
Use Scenario: Gate driving IGBT modules in 10 kW solar string inverters exposed to outdoor thermal cycling. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver ensuring long-term parametric stability in field-deployed equipment. Use Value: Silicon isolation eliminates LED degradation - maintains consistent propagation delay over 15+ year service life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8220BB-A-ISR | Same SOIC-8 package and pinout; rated for 3.75 kVRMS isolation (not 5.0 kVRMS) | Suitable for 300 VRMS working voltage systems (e.g., industrial PLC I/O), not 600 VRMS mains-connected inverters | Select when regulatory requirements permit lower isolation - reduces cost without sacrificing timing or drive strength |
| HCPL-3120-000E | Optocoupler-based; 2.5 A peak output but 500 ns typical propagation delay, higher temperature drift, and no integrated UVLO hysteresis | Legacy designs where board space allows larger footprint and slower timing is acceptable | Choose only for backward compatibility; SI8220CB-A-ISR offers superior CMTI, lifetime stability, and reduced BOM count |
Compared with Si8220BB-A-ISR, SI8220CB-A-ISR provides 33% higher isolation voltage for safety-critical 600 VRMS applications; compared with HCPL-3120-000E, it delivers 8× faster propagation, eliminates LED aging, and integrates robust UVLO - enabling higher efficiency and longer field life.
Availability
SI8220CB-A-ISR is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, and renewable energy inverters requiring stable component supply, long-term lifecycle support, and certified 5.0 kVRMS isolation.
Supply support for SI8220CB-A-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-delivering higher speed, tighter matching, and improved reliability for IGBT/MOSFET gate drive in industrial, automotive, and energy infrastructure systems.
FAQ
What is the isolation voltage rating of SI8220CB-A-ISR and which standards does it meet?
The SI8220CB-A-ISR is rated for 5.0 kVRMS isolation per UL 1577 (1 minute), with production testing to 6.0 kVRMS. It meets CSA Component Notice 5A (IEC 60950-1, 61010-1, 60601-1), VDE IEC 60747-5-5 (reinforced insulation), and CQC GB4943.1. These certifications apply specifically to the 5.0 kVRMS variant and validate its use in 600 VRMS working voltage systems.
Does SI8220CB-A-ISR require external components for basic operation?
Yes - SI8220CB-A-ISR requires two decoupling capacitors (0.1 µF ceramic + 10 µF bulk) between VDD and VSS (Pins 2 and 1/4), placed as close as possible to the package. No external pull-ups, level shifters, or bias resistors are needed for standard operation, as its LED-emulator input accepts 5–20 mA directly from MCU I/O or open-drain drivers.
How does the UVLO function behave on SI8220CB-A-ISR, and what are its thresholds?
The SI8220CB-A-ISR features under-voltage lockout with a 12.5 V nominal turn-on threshold (VDDUV+ = 12.4–14.8 V) and 1000 mV hysteresis (VDDHYS). VO remains low until VDD exceeds VDDUV+, then follows input state. During power-down, VO is forced low when VDD falls below VDDUV– (11.6–13.8 V), preventing erratic switching near supply collapse.
Can SI8220CB-A-ISR replace HCPL-3120 in existing designs without layout changes?
Yes - SI8220CB-A-ISR uses the same SOIC-8 narrow-body footprint and pinout as HCPL-3120, including identical Pad 1–8 assignments (VSS, VDD, VO, VSS, CATHODE, ANODE, NC, NC). No PCB rework is required; however, VDD decoupling should be verified for 24 V operation, and input series resistance may need adjustment to limit IF to ≤20 mA.
What is the maximum capacitive load SI8220CB-A-ISR can drive at 100 kHz switching frequency?
At 100 kHz, SI8220CB-A-ISR can reliably drive up to ~1200 pF (calculated from Equation 3 in the datasheet), assuming VDD = 18 V, VF = 2.8 V, and IF = 10 mA. This supports gate charges up to ~22 nC - sufficient for 600 V IGBTs and 650 V SiC MOSFETs used in industrial inverters and SMPS.
SI8220CB-A-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:
- Obsolete
- 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:
- 12.2V ~ 24V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
- Approval Agency:
- CSA, UR, VDE
SI8220CB-A-ISR FAQ
1.How can I place an order for SI8220CB-A-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8220CB-A-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 SI8220CB-A-ISR reliable?
The price and inventory of SI8220CB-A-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8220CB-A-ISR is usually 5 days.
3.What payment methods are accepted for SI8220CB-A-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8220CB-A-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8220CB-A-ISR?
SI8220CB-A-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8220CB-A-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 SI8220CB-A-ISR?
For technical support, including SI8220CB-A-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8220CB-A-ISR requirements.
6.How does Aetrix verify that SI8220CB-A-ISR is sourced from the original manufacturer or authorized distributors?
All SI8220CB-A-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 SI8220CB-A-ISR meets industry standards.
7.What is the process for return or replacement of SI8220CB-A-ISR?
All SI8220CB-A-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8220CB-A-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 SI8220CB-A-ISR part is unused and in its original packaging.
Return procedure for SI8220CB-A-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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