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Home > Products > Isolators > Isolators - Gate Drivers

Skyworks Solutions Inc. SI8220CD-D-IS

Name: SI8220CD-D-IS
Brand: Skyworks Solutions Inc.
SKU: SI8220CD-D-IS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI8220CD-D-IS

Manufacturer:: Skyworks Solutions Inc.

Category:: Isolators - Gate Drivers

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: SI8220CD-D-IS.pdf

Description:: DGTL ISO 5KV 1CH GATE DVR 16SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

SI8220CD-D-IS from Skyworks Solutions is a 2.5 A peak-output isolated gate driver with silicon-based isolation, 5.0 kVRMS withstand voltage (UL1577), 60 ns max propagation delay, and –40 to +125 °C operating range. It replaces optocoupled drivers like HCPL-3120 in IGBT/MOSFET gate drive circuits for industrial inverters and UPS systems.

For engineers reviewing the SI8220CD-D-IS datasheet, SI8220CD-D-IS pinout, SI8220CD-D-IS application, or SI8220CD-D-IS equivalent, key selection criteria include its reinforced insulation rating (IEC 60747-5-5, VDE 0884-5), UVLO hysteresis (1000 mV at 12.5 V threshold), and SOIC-8 narrow-body package compatibility with legacy opto layouts.

Technical Context

The SI8220CD-D-IS implements RF-based on/off keying across a semiconductor isolation barrier-replacing LED/photodiode coupling-to deliver stable timing independent of input current, 30 kV/µs common-mode transient immunity, and 14× tighter part-to-part matching than optocouplers. Its input emulates an LED but requires only 5–20 mA forward current.

Internally, it integrates under-voltage lockout with programmable thresholds (5/8/10/12.5 V), output driver stages optimized for 6.5–24 V gate supply, and thermal protection aligned with DIN EN 60747-5-5 safety limiting values. Startup time is ≤40 µs after VDD exceeds UVLO+.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Withstand Voltage	5.0 kVRMS (1 min, UL1577); enables reinforced insulation per IEC 60950-1 up to 600 VRMS working voltage.
Peak Output Current	2.5 A (t_PW = 10 µs, 0.2% duty); sufficient to drive high-C_iss IGBTs and SiC MOSFETs in motor drives.
Propagation Delay	≤60 ns (t_PLH), ≤40 ns (t_PHL); fixed delay independent of input drive current ensures consistent timing across temperature and life.
Common-Mode Transient Immunity	≥30 kV/µs; maintains signal integrity in noisy high-dv/dt environments like switch-mode power supplies.
Supply Voltage Range	6.5 V to 24 V (V_DD–V_SS); supports wide-range gate bias while enabling direct replacement of 15 V opto drivers.
Operating Temperature	–40 °C to +125 °C ambient; qualified to AEC-Q100 Grade 1, suitable for industrial and automotive under-hood applications.
UVLO Threshold	12.5 V rising (V_DDUV+ = 12.4–14.8 V), with 1000 mV hysteresis; prevents erratic switching during brown-out conditions.

Pinout & Package

SI8220CD-D-IS is housed in a 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	V_SS	Driver-side ground reference; may be biased below system ground but must maintain \|V_DD–V_SS\| ≤ 24 V.
2	V_DD	Driver-side supply input; requires local 0.1 µF + 10 µF decoupling; powers internal logic and output stage.
3	V_O	High-side output driver; sources/sinks up to 2.5 A peak; connects directly to IGBT/MOSFET gate.
4	V_SS	Second driver-side ground pin; improves thermal and EMI performance via dual ground path.
5	CATHODE	Input cathode terminal; referenced to ANODE; accepts 5–20 mA forward current for logic-high assertion.
6	ANODE	Input anode terminal; completes LED-emulator circuit; compatible with MCU/FPGA I/O or open-drain drivers.
7	NC	No connect; internally unconnected; must remain floating or tied to V_SS per layout guidelines.
8	NC	No connect; internally unconnected; must remain floating or tied to V_SS per layout guidelines.

Key Features

Feature	Design Value
Silicon isolation barrier	Replaces optocoupler LED/photodiode with RF modulation, eliminating LED aging drift and temperature-dependent CTR variation.
Input current efficiency	Operates with 5–20 mA input current-half the typical requirement of HCPL-3120-reducing MCU I/O loading and driver-stage power loss.
Propagation delay stability	Delay independent of IF ensures consistent timing across input drive levels, temperature (–40 to +125 °C), and device lifetime.
Reinforced insulation certification	UL1577 (5 kVRMS), VDE 0884-5 (IEC 60747-5-5), CSA 5A, and CQC GB4943.1 certified for safety-critical industrial and medical systems.
Robust startup behavior	Guaranteed low-state output during power-up until V_DD exceeds UVLO+ and t_START (≤40 µs) elapses-prevents unintended gate turn-on.

Applications

Industrial Motor Drives	Uninterruptible Power Supplies (UPS)
Use Scenario: Driving IGBT half-bridge legs in variable-frequency AC drives for HVAC and pumps. IC Role / Device Role / Timing Role: Isolated high-side gate driver delivering 2.5 A peak current with <60 ns propagation delay to synchronize switching and minimize shoot-through risk. Use Value: Enables precise dead-time control and reduces gate-loop losses versus optocouplers due to lower output resistance (R_OL = 1.0 Ω).	Use Scenario: Controlling MOSFETs in DC-AC inverters for battery-backed backup power systems. IC Role / Device Role / Timing Role: Functional replacement for HCPL-3120 in high-efficiency synchronous rectification and PWM stages. Use Value: 30 kV/µs CMTI prevents false triggering during line transients, and 5.0 kVRMS isolation meets UL 62368-1 reinforced insulation requirements.
Switch-Mode Power Supplies	Inverters for Renewable Energy
Use Scenario: Gate driving of primary-side GaN FETs in high-frequency LLC resonant converters. IC Role / Device Role / Timing Role: High-speed isolated driver supporting >1 MHz switching with minimal delay skew between channels. Use Value: Fixed propagation delay eliminates timing jitter caused by optocoupler CTR variation, improving efficiency and EMI performance.	Use Scenario: Driving SiC MOSFETs in solar string inverters exposed to outdoor temperature cycling and grid surges. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver providing robust gate control under –40 to +125 °C ambient and high dv/dt noise. Use Value: VDE-certified 5.0 kVRMS isolation and 125 °C junction rating ensure long-term reliability in uncooled outdoor enclosures.

Industrial Motor Drives

Uninterruptible Power Supplies (UPS)

Use Scenario: Driving IGBT half-bridge legs in variable-frequency AC drives for HVAC and pumps.

IC Role / Device Role / Timing Role: Isolated high-side gate driver delivering 2.5 A peak current with <60 ns propagation delay to synchronize switching and minimize shoot-through risk.

Use Value: Enables precise dead-time control and reduces gate-loop losses versus optocouplers due to lower output resistance (R_OL = 1.0 Ω).

Use Scenario: Controlling MOSFETs in DC-AC inverters for battery-backed backup power systems.

IC Role / Device Role / Timing Role: Functional replacement for HCPL-3120 in high-efficiency synchronous rectification and PWM stages.

Use Value: 30 kV/µs CMTI prevents false triggering during line transients, and 5.0 kVRMS isolation meets UL 62368-1 reinforced insulation requirements.

Switch-Mode Power Supplies

Inverters for Renewable Energy

Use Scenario: Gate driving of primary-side GaN FETs in high-frequency LLC resonant converters.

IC Role / Device Role / Timing Role: High-speed isolated driver supporting >1 MHz switching with minimal delay skew between channels.

Use Value: Fixed propagation delay eliminates timing jitter caused by optocoupler CTR variation, improving efficiency and EMI performance.

Use Scenario: Driving SiC MOSFETs in solar string inverters exposed to outdoor temperature cycling and grid surges.

IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated driver providing robust gate control under –40 to +125 °C ambient and high dv/dt noise.

Use Value: VDE-certified 5.0 kVRMS isolation and 125 °C junction rating ensure long-term reliability in uncooled outdoor enclosures.

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-IS	Same SOIC-8 package and pinout; differs only in UVLO threshold (10 V vs. 12.5 V).	Preferred where 10 V UVLO better matches existing 12 V rail tolerances and avoids false lockout during ripple.	Select Si8220AD-D-IS if system V_DD nominal is 12 V with ±10% tolerance; otherwise retain SI8220CD-D-IS for 15 V rails.
HCPL-3120-000E	Optocoupled driver; 2.5 A peak output but 200 ns propagation delay, 15 kV/µs CMTI, and LED aging sensitivity.	Legacy designs requiring no PCB change but accepting higher timing uncertainty and reduced lifetime stability.	Choose HCPL-3120-000E only for drop-in replacement in field-repaired units; SI8220CD-D-IS offers superior long-term performance and noise immunity.

Compared with Si8220AD-D-IS, SI8220CD-D-IS provides higher UVLO hysteresis (1000 mV vs. 600 mV) for improved brown-out resilience on 15 V rails; compared with HCPL-3120-000E, it delivers 3.3× faster propagation, 2× higher CMTI, and zero LED degradation-critical for 15-year industrial deployments.

Availability

SI8220CD-D-IS 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 SI8220CD-D-IS 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 path from optocoupled gate drivers-delivering higher speed, tighter matching, and enhanced reliability for IGBT and MOSFET gate drive in industrial, automotive, and energy infrastructure systems.

FAQ

What is the isolation voltage rating of the SI8220CD-D-IS?

The SI8220CD-D-IS is rated for 5.0 kVRMS isolation withstand voltage per UL1577 (1 minute test). It is certified to IEC 60747-5-5 (VDE 0884-5) with VIORM = 560 Vpeak for basic insulation and meets reinforced insulation requirements up to 600 VRMS per UL 62368-1 and IEC 60950-1. Production testing applies 6.0 kVRMS for 1 second.

Does the SI8220CD-D-IS require external components for basic operation?

Yes-the SI8220CD-D-IS requires local decoupling: a 0.1 µF ceramic capacitor and a 10 µF bulk capacitor placed between V_DD and V_SS pins, as close to the package as possible. No external pull-ups, level shifters, or timing resistors are needed; the input emulates an LED and interfaces directly with MCU GPIO or open-drain drivers.

How does the UVLO behavior of the SI8220CD-D-IS differ from optocouplers like HCPL-3120?

The SI8220CD-D-IS features a precise, hysteresis-controlled UVLO with rising threshold V_DDUV+ = 12.4–14.8 V and falling threshold V_DDUV– = 11.6–13.8 V (1000 mV hysteresis). Unlike HCPL-3120-which lacks defined UVLO-the SI8220CD-D-IS guarantees VO remains low until V_DD stabilizes above threshold, preventing partial turn-on during power ramp-up.

Can the SI8220CD-D-IS drive SiC MOSFETs effectively?

Yes-the SI8220CD-D-IS delivers 2.5 A peak source/sink current with R_OH = 2.7 Ω and R_OL = 1.0 Ω, enabling fast turn-on/turn-off of high-input-capacitance SiC devices. Its 60 ns max propagation delay and 30 kV/µs CMTI support reliable operation in >100 kHz SiC inverter topologies without added gate resistors or snubbers.

Is the SI8220CD-D-IS pin-compatible with HCPL-3120?

Yes-the SI8220CD-D-IS uses the same SOIC-8 narrow-body footprint and identical pin assignments (ANODE, CATHODE, V_O, V_DD, V_SS, NC) as HCPL-3120, enabling direct PCB replacement without layout changes. However, V_DD must be limited to ≤24 V, and input current must be capped at 20 mA-both within HCPL-3120 design margins.

SI8220CD-D-IS Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: -

Package/Case:: 16-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Active

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:: 12.2V ~ 24V

Grade:: Automotive

Qualification:: AEC-Q100

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

Approval Agency:: CQC, CSA, UR, VDE

SI8220CD-D-IS FAQ

1.How can I place an order for SI8220CD-D-IS through Aetrix?

Please submit a Request for Quotation (RFQ) for SI8220CD-D-IS 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 SI8220CD-D-IS reliable?

The price and inventory of SI8220CD-D-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8220CD-D-IS is usually 5 days.

3.What payment methods are accepted for SI8220CD-D-IS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8220CD-D-IS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI8220CD-D-IS?

SI8220CD-D-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI8220CD-D-IS 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 SI8220CD-D-IS?

For technical support, including SI8220CD-D-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8220CD-D-IS requirements.

6.How does Aetrix verify that SI8220CD-D-IS is sourced from the original manufacturer or authorized distributors?

All SI8220CD-D-IS 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 SI8220CD-D-IS meets industry standards.

7.What is the process for return or replacement of SI8220CD-D-IS?

All SI8220CD-D-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8220CD-D-IS, 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 SI8220CD-D-IS part is unused and in its original packaging.

Return procedure for SI8220CD-D-IS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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