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Skyworks Solutions Inc. SI8220BD-A-ISR
- Part No.:
- SI8220BD-A-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8220BD-A-ISR.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,446
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Product details
Overview
SI8220BD-A-ISR from Skyworks Solutions is a 2.5 A peak-output isolated gate driver with opto-emulator input, 5.0 kVRMS reinforced isolation (UL 1577), 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 SI8220BD-A-ISR datasheet, SI8220BD-A-ISR pinout, SI8220BD-A-ISR application, or SI8220BD-A-ISR equivalent, this page delivers verified electrical specs, SOIC-8 narrow-body package mapping, UVLO thresholds (12.5 V), CMTI (30 kV/µs), and direct functional alternatives for high-reliability power conversion designs.
Technical Context
The SI8220BD-A-ISR implements RF-based on/off keying across a silicon isolation barrier-replacing LED/photodiode coupling with higher common-mode transient immunity and temperature-stable timing. Its input emulates an LED but requires only 5–20 mA forward current, and propagation delay is independent of input drive level.
It integrates under-voltage lockout with 12.5 V turn-on threshold (VDDUV+ = 12.4–14.8 V) and 1.0 V hysteresis, plus output drive capability of 2.5 A sink/source into capacitive loads up to 200 pF. The device operates with VDD from 6.5 V to 24 V and supports AEC-Q100 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS (UL 1577, 1 min); enables reinforced insulation per IEC 60950-1/61010-1 in 600 VRMS working voltage systems |
| Peak Output Current | 2.5 A sink/source; drives high-gate-charge IGBTs and SiC MOSFETs without external buffers |
| Propagation Delay | ≤60 ns (tPLH), ≤40 ns (tPHL); tight unit-to-unit matching enables precise multi-channel timing in phase-shifted converters |
| CMTI | ≥30 kV/µs; maintains logic integrity during fast-switching transients in motor drives and solar inverters |
| UVLO Threshold | 12.5 V nominal (VDDUV+ = 12.4–14.8 V, hysteresis = 1.0 V); prevents erratic switching during brown-out conditions |
| Operating Temperature | –40 to +125 °C ambient; qualified per AEC-Q100 Grade 1 for under-hood and industrial control environments |
| Supply Voltage Range | VDD = 6.5–24 V; compatible with 12 V and 15 V gate driver rails without external regulation |
Pinout & Package
SI8220BD-A-ISR is housed in an ROHS-compliant SOIC-8 narrow-body package (5.3 mm × 4.4 mm, 1.75 mm height) with creepage/clearance ≥4.01 mm / 4.9 mm per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (ANODE) | Input anode terminal | Accepts 5–20 mA forward current; emulates LED behavior with 1.7–2.5 V VF at IF = 5 mA |
| 2 (CATHODE) | Input cathode terminal | Reference for input current path; reverse voltage rating = 0.5 V |
| 3 (VSS) | Output-side ground reference | Return path for VO; may be biased below system GND to support high-side gate drive configurations |
| 4 (VO) | Output driver terminal | 2.5 A capable push-pull output; VO = VDD–0.1 V (high), 50 mV (low) at IOUT = 50 mA |
| 5 (VDD) | Driver-side supply rail | 6.5–24 V input; powers internal RF transmitter/receiver and output stage; decoupling required at pin |
| 6 (NC) | No-connect terminal | Internally unconnected; must remain floating per datasheet layout guidance |
| 7 (NC) | No-connect terminal | Internally unconnected; no PCB trace or thermal pad connection permitted |
| 8 (NC) | No-connect terminal | Internally unconnected; avoids unintended coupling in high-noise environments |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation architecture | Eliminates LED aging and temperature drift; achieves 14× tighter part-to-part propagation delay matching vs. optocouplers |
| Input current efficiency | Operates at 5–20 mA IF (vs. 10–25 mA typical for HCPL-3120); reduces MCU/FPGA I/O loading and power loss |
| UVLO with hysteresis | 12.5 V turn-on threshold with 1.0 V hysteresis ensures clean startup/shutdown and prevents oscillation near supply limits |
| High CMTI performance | 30 kV/µs common-mode rejection enables reliable operation in 100 kHz+ SiC/GaN inverter half-bridges |
| Reinforced safety certification | UL 1577 (5 kVRMS), VDE 0884-5 (891 Vpeak), CSA 5A, CQC GB4943.1 - certified for industrial and medical equipment |
Applications
| Industrial Motor Drives | Uninterruptible Power Supplies (UPS) |
|---|---|
|
Use Scenario: Driving IGBT half-bridge legs in variable-frequency AC motor controllers with >20 kHz PWM switching. IC Role / Device Role / Timing Role: Isolated gate driver providing 2.5 A peak source/sink to minimize Miller plateau time and reduce switching losses. Use Value: 60 ns max tPLH/tPHL and 30 kV/µs CMTI prevent shoot-through during fast dV/dt transitions in 600 V bus systems. |
Use Scenario: Controlling MOSFETs in online double-conversion UPS inverters requiring galvanic isolation between control and power domains. IC Role / Device Role / Timing Role: Functional replacement for HCPL-3120 with identical pinout and improved timing consistency across temperature. Use Value: 5.0 kVRMS isolation and AEC-Q100 qualification ensure long-term reliability in 24/7 backup power infrastructure. |
| Solar Photovoltaic Inverters | Industrial PLC Output Modules |
|
Use Scenario: Gate-driving SiC MOSFETs in string-level DC-AC converters exposed to high common-mode noise from PV arrays. IC Role / Device Role / Timing Role: High-speed isolated driver enabling >100 kHz switching while maintaining safe isolation barriers per IEC 62109. Use Value: 125 °C max operating temperature and 14× tighter propagation delay matching improve thermal margin and synchronization accuracy. |
Use Scenario: Providing isolated digital output switching for 24 V DC industrial field devices in programmable logic controller racks. IC Role / Device Role / Timing Role: Opto-emulator input accepts standard PLC logic levels; 2.5 A output drives solenoids, relays, and indicator LEDs directly. Use Value: SOIC-8 narrow-body footprint allows dense PCB layouts; RoHS compliance meets global manufacturing requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8221BD-A-ISR | Same SOIC-8 package and pinout; differs only in UVLO threshold (10 V vs. 12.5 V); identical 2.5 A drive and 5.0 kVRMS rating | Preferred where lower UVLO enables earlier startup in 12 V rail systems; not suitable for 24 V systems requiring higher undervoltage margin | Select SI8220BD-A-ISR when system VDD stability above 12.5 V is critical; verify UVLO hysteresis (1.0 V) matches control loop requirements. |
| HCPL-3120-000E | Optocoupler-based; 2.5 A peak output but 500 ns typical propagation delay, 10 kV/µs CMTI, and LED aging sensitivity | Legacy drop-in replacement where isolation rating (3.75 kVRMS) and temperature drift are acceptable trade-offs | Choose SI8220BD-A-ISR for new designs demanding tighter timing, higher noise immunity, or extended lifetime; avoid HCPL-3120-000E in >85 °C ambient or high-reliability applications. |
Compared with Si8221BD-A-ISR, SI8220BD-A-ISR provides higher UVLO headroom for stable operation in noisy 24 V systems; compared with HCPL-3120-000E, it delivers 8× faster propagation, 3× higher CMTI, and eliminates LED degradation-critical for 15+ year industrial deployments.
Availability
SI8220BD-A-ISR is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, solar photovoltaic inverters, and PLC output modules requiring stable component supply, long lifecycle support, and certified reinforced isolation.
Supply support for SI8220BD-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 for communications, automotive, and industrial markets.
The Si8220/21 family was designed as a functional upgrade to legacy optocoupled gate drivers-delivering superior timing precision, isolation robustness, and thermal stability for next-generation power conversion systems.
FAQ
What is the isolation voltage rating of SI8220BD-A-ISR and which safety standards does it meet?
The SI8220BD-A-ISR is rated for 5.0 kVRMS isolation per UL 1577 (1 minute), with certifications including VDE 0884-5 (IEC 60747-5-5), CSA Component Notice 5A, and CQC GB4943.1. It supports reinforced insulation up to 600 VRMS working voltage per IEC 60950-1 and IEC 61010-1, making it suitable for industrial and medical equipment where galvanic separation is mandatory.
Does SI8220BD-A-ISR support high-side gate driving configurations?
Yes, SI8220BD-A-ISR supports high-side gate driving: its VSS pin can be biased above system ground (e.g., tied to the source of a high-side MOSFET), while VO delivers referenced output swing relative to VSS. This enables direct use in bootstrap or floating high-side configurations without additional level-shifting circuitry.
What is the UVLO behavior of SI8220BD-A-ISR and how does it affect system startup?
SI8220BD-A-ISR features a 12.5 V nominal UVLO with 1.0 V hysteresis (VDDUV+ = 12.4–14.8 V, VDDUV– = 11.6–13.8 V). During startup, VO remains low until VDD exceeds VDDUV+, then follows input state after a 40 µs startup time (tSTART). This prevents erratic gate switching during power ramp-up and ensures deterministic initialization.
Can SI8220BD-A-ISR replace HCPL-3120 directly on existing PCBs?
Yes, SI8220BD-A-ISR is pin-compatible with HCPL-3120 in SOIC-8 narrow-body packages and shares identical ANODE/CATHODE/VO/VDD/VSS pin assignments. No PCB changes are required, though designers should confirm that the 12.5 V UVLO threshold and reduced input current (5–20 mA vs. 10–25 mA) align with their control circuit's drive capability and supply stability.
What is the maximum capacitive load SI8220BD-A-ISR can drive at 100 kHz switching frequency?
At 100 kHz, SI8220BD-A-ISR can drive up to ~1,200 pF (calculated from Equation 3 in the datasheet), assuming VDD = 18 V, VF = 2.8 V, and IF = 10 mA. For 200 pF loads (typical for IGBT gates), it delivers full 2.5 A peak current with 20 ns rise/fall times-ensuring minimal Miller plateau duration and low switching losses.
SI8220BD-A-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5000Vrms
- 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:
- 16-SOIC
- Approval Agency:
- CSA, UR, VDE
SI8220BD-A-ISR FAQ
1.How can I place an order for SI8220BD-A-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8220BD-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 SI8220BD-A-ISR reliable?
The price and inventory of SI8220BD-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 SI8220BD-A-ISR is usually 5 days.
3.What payment methods are accepted for SI8220BD-A-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8220BD-A-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8220BD-A-ISR?
SI8220BD-A-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8220BD-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 SI8220BD-A-ISR?
For technical support, including SI8220BD-A-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8220BD-A-ISR requirements.
6.How does Aetrix verify that SI8220BD-A-ISR is sourced from the original manufacturer or authorized distributors?
All SI8220BD-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 SI8220BD-A-ISR meets industry standards.
7.What is the process for return or replacement of SI8220BD-A-ISR?
All SI8220BD-A-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8220BD-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 SI8220BD-A-ISR part is unused and in its original packaging.
Return procedure for SI8220BD-A-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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