Skyworks Solutions Inc. SI8220CB-D-ISR
- Part No.:
- SI8220CB-D-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8220CB-D-ISR.pdf
- Description:
- DGTL ISO 2.5KV 1CH GT DVR 8SOIC
- Quantity:
- Payment:

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Product details
Overview
SI8220CB-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 SI8220CB-D-ISR datasheet, SI8220CB-D-ISR pinout, SI8220CB-D-ISR application, or SI8220CB-D-ISR equivalent, key selection criteria include its 5.0 kVRMS isolation rating, 2.5 A sink/source capability, SOIC-8 narrow-body package, UVLO hysteresis of 1000 mV (12.5 V threshold), and CMTI of 30 kV/µs - all critical for high-reliability motor control and power conversion designs.
Technical Context
The SI8220CB-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, with propagation delay independent of drive level.
It features under-voltage lockout with 12.5 V turn-on threshold (VDDUV+ = 12.4–14.8 V) and 1000 mV hysteresis, plus robust transient immunity (30 kV/µs CMTI). The device operates with VDD = 6.5–24 V and supports gate drive for both N-channel and P-channel power switches.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS (UL1577, 1 min); enables reinforced insulation in 600 VRMS mains-connected systems per IEC 60950-1/61010-1. |
| Peak Output Current | 2.5 A sink/source; drives high-capacitance IGBTs and GaN FETs without external buffers in SMPS and motor drives. |
| Propagation Delay | ≤60 ns (tPLH), ≤40 ns (tPHL); tight timing enables >1 MHz switching with minimal dead-time uncertainty. |
| Common-Mode Transient Immunity | 30 kV/µs; maintains signal integrity in noisy high-dv/dt environments like inverter leg commutation. |
| Supply Voltage Range | 6.5 V to 24 V; compatible with standard 12 V/15 V gate drive rails and supports wide-input industrial supplies. |
| UVLO Threshold | 12.5 V nominal (VDDUV+ = 12.4–14.8 V, hysteresis = 1000 mV); prevents erratic output during brown-out conditions. |
| Operating Temperature | –40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 1, suitable for under-hood and industrial cabinet use. |
Pinout & Package
SI8220CB-D-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 | Input-side ground reference; must be connected to controller-side GND, not power-stage ground. |
| 2 | VDD | Driver-side supply input (6.5–24 V); requires local 0.1 µF + 10 µF decoupling adjacent to pin. |
| 3 | VO | Output driver terminal; sources/sinks up to 2.5 A to gate of power switch; connects directly to MOSFET/IGBT gate. |
| 4 | VSS | Input-side ground (redundant pin); ties to Pin 1 for low-inductance return path. |
| 5 | CATHODE | LED-emulator cathode; driven low by MCU/FPGA GPIO or open-drain controller to enable output. |
| 6 | ANODE | LED-emulator anode; connects to VDD via current-limiting resistor (R1) to set IF = 5–20 mA. |
| 7 | NC | No connect; internally unconnected; must remain floating or tied to VSS per layout guidelines. |
| 8 | NC | No connect; internally unconnected; must remain floating or tied to VSS per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED degradation and temperature drift; ensures stable propagation delay and CMTI over lifetime and temperature. |
| Input current optimization | 5–20 mA drive range (vs. 10–25 mA for HCPL-3120); reduces MCU I/O loading and improves system efficiency. |
| Tight unit-to-unit matching | 14× tighter propagation delay variation than optocoupled drivers; simplifies multi-channel timing synchronization. |
| Reinforced safety certification | UL1577 (5 kVRMS), VDE 0884-5 (891 Vpeak VIORM), CSA 5A, CQC GB4943.1 - certified for industrial and medical applications. |
| High-noise immunity startup | UVLO with 1000 mV hysteresis and 40 µs startup time ensures clean, glitch-free output enable after power ramp-up. |
Applications
| Industrial Motor Drives | Switch-Mode Power Supplies |
|---|---|
Use Scenario: Driving half-bridge IGBTs in servo amplifiers with 10–20 kHz PWM and 1500 V bus voltage. 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: 30 kV/µs CMTI prevents false triggering during cross-conduction events; 2.5 A peak current ensures fast gate charge/discharge for <100 ns rise/fall times. |
Use Scenario: Gate driving SiC MOSFETs in 3.3 kW LLC resonant converter operating at 300–500 kHz. IC Role / Device Role / Timing Role: High-speed isolated driver delivering precise edge timing between primary-side controllers and secondary-side synchronous rectifiers. Use Value: 60 ns max tPLH enables accurate dead-time control; 5.0 kVRMS isolation meets reinforced insulation requirements for Class I AC-DC adapters. |
| Uninterruptible Power Supplies | Inverters for Renewable Energy |
Use Scenario: Controlling three-phase IGBT modules in 10 kVA online UPS with battery backup and zero-transfer-time switchover. IC Role / Device Role / Timing Role: Functional replacement for HCPL-3120 in gate drive stage, providing galvanic isolation between DSP controller and power stage. Use Value: AEC-Q100 qualification ensures reliability under thermal cycling; –40 to +125 °C operation supports fanless enclosure designs. |
Use Scenario: Driving dual N-channel MOSFETs in MPPT charge controller for 1500 V DC solar arrays feeding grid-tied inverters. IC Role / Device Role / Timing Role: Isolated high-side driver enabling bootstrap-free high-side switching in high-voltage DC-DC stages. Use Value: 24 V VDD tolerance accommodates wide PV input range; 5.0 kVRMS isolation satisfies IEC 62109-1 photovoltaic system safety standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8230BD-D-IS | Same SOIC-8 package, 2.5 A output, but 3.75 kVRMS isolation and 8 V UVLO threshold; lower CMTI (25 kV/µs). | Suitable for cost-sensitive industrial controls where 3.75 kVRMS suffices and 12.5 V UVLO is not required. | Select when lower isolation rating and reduced UVLO hysteresis are acceptable trade-offs for BOM cost reduction. |
| ACPL-332J-000E | Optocoupled 2.5 A driver (Avago/Broadcom); 5 kVRMS isolation, but 200 ns propagation delay and higher IF(ON) = 16 mA. | Legacy drop-in replacement where RF-based isolation is not mandated; limited lifetime stability and temperature drift. | Choose only for backward compatibility in existing opto-based designs; avoid for new high-reliability or high-frequency designs. |
Compared with SI8220CB-D-ISR, Si8230BD-D-IS offers lower isolation and UVLO headroom but identical package and drive strength, while ACPL-332J-000E provides legacy opto compatibility at the expense of timing precision, aging stability, and CMTI - making SI8220CB-D-ISR optimal for next-generation high-efficiency, high-reliability power systems.
Availability
SI8220CB-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-term lifecycle support, and certified reinforced isolation.
Supply support for SI8220CB-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 for high-performance wireless and power systems.
The Si8220 family was designed specifically as a functional upgrade to optocoupled gate drivers - delivering superior timing accuracy, isolation robustness, and long-term reliability for industrial, automotive, and energy infrastructure applications.
FAQ
What is the isolation voltage rating of the SI8220CB-D-ISR?
The SI8220CB-D-ISR is rated for 5.0 kVRMS isolation per UL1577 (1 minute test), with production-tested withstand voltage of 6.0 kVRMS. This corresponds to 891 Vpeak working voltage (VIORM) under IEC 60747-5-5, qualifying it for reinforced insulation in 600 VRMS mains-connected equipment per IEC 60950-1 and IEC 61010-1.
Can the SI8220CB-D-ISR replace HCPL-3120 directly in existing PCB layouts?
Yes - the SI8220CB-D-ISR uses the same SOIC-8 narrow-body footprint and pinout as HCPL-3120, enabling drop-in replacement without PCB changes. However, verify that VDD remains ≤24 V and adjust input current-limiting resistor R1 to ensure IF stays within 5–20 mA, as the SI8220CB-D-ISR requires less drive current than the HCPL-3120.
What is the UVLO behavior of the SI8220CB-D-ISR?
The SI8220CB-D-ISR features under-voltage lockout with a nominal 12.5 V turn-on threshold (VDDUV+ = 12.4–14.8 V) and 1000 mV hysteresis. Output 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.
Does the SI8220CB-D-ISR support high-frequency switching above 1 MHz?
Yes - the SI8220CB-D-ISR achieves ≤60 ns propagation delay and ≤20 ns output rise/fall times (2.5 A, CL = 200 pF), enabling reliable operation at switching frequencies up to 2 MHz. Its RF-based architecture ensures consistent timing performance independent of input drive current or temperature, unlike optocouplers.
Is the SI8220CB-D-ISR qualified for automotive applications?
The SI8220CB-D-ISR is AEC-Q100 qualified (Grade 1, –40 °C to +125 °C), making it suitable for automotive under-hood applications such as electric power steering (EPS) and onboard chargers. Its 5.0 kVRMS isolation, 30 kV/µs CMTI, and robust UVLO support functional safety requirements in ASIL-B systems when used with appropriate system-level diagnostics.
SI8220CB-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:
- 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:
- CQC, CSA, UR, VDE
SI8220CB-D-ISR FAQ
1.How can I place an order for SI8220CB-D-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8220CB-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 SI8220CB-D-ISR reliable?
The price and inventory of SI8220CB-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 SI8220CB-D-ISR is usually 5 days.
3.What payment methods are accepted for SI8220CB-D-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8220CB-D-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8220CB-D-ISR?
SI8220CB-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8220CB-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 SI8220CB-D-ISR?
For technical support, including SI8220CB-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8220CB-D-ISR requirements.
6.How does Aetrix verify that SI8220CB-D-ISR is sourced from the original manufacturer or authorized distributors?
All SI8220CB-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 SI8220CB-D-ISR meets industry standards.
7.What is the process for return or replacement of SI8220CB-D-ISR?
All SI8220CB-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8220CB-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 SI8220CB-D-ISR part is unused and in its original packaging.
Return procedure for SI8220CB-D-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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