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Skyworks Solutions Inc. SI8230AC-AS1R
- Part No.:
- SI8230AC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8230AC-AS1R.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:1,098
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Product details
Overview
SI8230AC-AS1R from Skyworks Solutions is an automotive-grade, high-side/low-side isolated gate driver IC with 0.5 A peak output current, 3.75 kVRMS input-to-output isolation, and TTL-compatible dual-input control (VIA/VIB). It integrates programmable dead time and overlap protection for half-bridge MOSFET/IGBT drive in high-reliability power conversion systems including onboard chargers and traction inverters.
For engineers reviewing the SI8230AC-AS1R datasheet, SI8230AC-AS1R pinout, SI8230AC-AS1R application, or SI8230AC-AS1R equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, automotive-qualified feature value, and two confirmed alternative parts - all grounded in Skyworks' official Si823x Final Data Sheet Rev. 206326B.
Technical Context
The SI8230AC-AS1R implements RF-based silicon isolation with a semiconductor barrier delivering 3.75 kVRMS withstand voltage per UL1577 and 45 ns max propagation delay. Its dual-channel architecture supports independent high-side and low-side gate drive with internal UVLO monitoring on VDDI (5 V threshold), VDDA, and VDDB.
It features programmable dead time via external resistor (DT pin), overlap protection logic to prevent shoot-through, and TTL-level inputs with >400 mV hysteresis. The device operates across –40°C to +125°C and supports up to 8 MHz switching frequency in half-bridge configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS - enables reinforced insulation per IEC 62368-1 in automotive power stages requiring ≥3.5 kVRMS creepage/clearance. |
| Peak Output Current | 0.5 A - sufficient to drive medium-power MOSFETs (e.g., 10–30 nC Qg) at ≤100 kHz in OBC and BMS half-bridges. |
| Propagation Delay | ≤45 ns - ensures tight timing alignment between high-side and low-side outputs for precise PWM control and minimal dead time uncertainty. |
| UVLO Threshold | 5 V (VDDI) - prevents erratic gate drive during cold cranking or brown-out conditions common in 12 V automotive systems. |
| Operating Temp | –40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and powertrain applications. |
| Switching Frequency | Up to 8 MHz - supports high-frequency GaN-based converters in compact EV charging modules. |
| Package | SOIC-16 Narrow Body - RoHS-compliant, JEDEC-standard 260 °C reflow compatible footprint with 1.27 mm pitch. |
Pinout & Package
SI8230AC-AS1R uses a 16-pin SOIC narrow-body package (7.5 mm × 10.3 mm, 1.27 mm pitch) with creepage optimized for 3.75 kVRMS isolation. Pin functions are validated per Skyworks Si823x Final Data Sheet Figure 1 and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side supply | Powers internal RF transmitter and logic; requires 4.5–5.5 V; triggers UVLO if <5 V. |
| GNDI | Input-side ground | Reference for VIA, VIB, DISABLE, and DT; must be isolated from power ground. |
| VIA | High-side input | TTL-compatible logic input controlling VOA; >400 mV hysteresis rejects noise in noisy automotive environments. |
| VIB | Low-side input | TTL-compatible logic input controlling VOB; independent of VIA for asymmetric PWM or phase-shifted control. |
| DISABLE | Global shutdown | Active-high signal forcing both VOA and VOB low within tSD (≤100 ns); overrides all inputs when asserted. |
| DT | Dead time programming | Resistor-to-ground sets dead time (DT ≈ 10 × RDT ns); floating or tied to VDDI yields ~400 ps nominal. |
| VDDA | High-side driver supply | Provides gate drive energy for VOA; UVLO monitors VDDA independently (threshold = 5 V). |
| VOA | High-side output | Source/sink capable driver (0.5 A peak) for N-channel MOSFET gate; referenced to GNDA. |
| GNDA | High-side ground | Return path for VOA; electrically isolated from GNDI and GNDB; connects to bootstrap capacitor negative. |
| VDDB | Low-side driver supply | Provides gate drive energy for VOB; UVLO monitors VDDB independently (threshold = 5 V). |
| VOB | Low-side output | Source/sink capable driver (0.5 A peak) for N-channel MOSFET gate; referenced to GNDB. |
| GNDB | Low-side ground | Return path for VOB; typically connected to system power ground; isolated from GNDA and GNDI. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unused; must remain unconnected per datasheet layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers (HS/LS) | Enables single-package half-bridge drive without external isolation components, reducing BOM count and PCB area by >30% vs. optocoupler + discrete driver solutions. |
| Programmable dead time | External resistor (RDT) sets precise dead time (10–500 ns range), eliminating need for MCU-based software delays and improving shoot-through immunity in fast-switching inverters. |
| AEC-Q100 qualified | Validated for automotive use with zero-defect manufacturing flow, AIAG-compliant PPAP, IMDS/CAMDS support, and full temperature-range operation (–40°C to +125°C). |
| RF isolation technology | Silicon-based barrier provides 45 ns propagation delay and superior EMI immunity vs. optocouplers - critical for noisy 400 V battery systems with fast dv/dt transients. |
| TTL input with hysteresis | 400 mV input hysteresis rejects conducted noise from microcontroller GPIOs or level shifters, ensuring reliable edge detection in ECU and inverter control boards. |
Applications
| Onboard Charger (OBC) | Battery Management System (BMS) |
|---|---|
|
Use Scenario: Isolated gate drive for bidirectional AC/DC and DC/DC stages in 11 kW+ EV onboard chargers using SiC MOSFETs. IC Role / Device Role / Timing Role: High-side/low-side driver providing synchronized, shoot-through-protected gate signals to half-bridge power switches with <45 ns timing skew. Use Value: Enables 96%+ efficiency at 100 kHz switching while meeting ISO 26262 ASIL-B functional safety requirements through deterministic dead time and UVLO fault response. |
Use Scenario: Driving high-voltage contactor precharge and main isolation switches in 400 V/800 V battery packs. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering controlled turn-on/turn-off sequencing to prevent arcing and ensure safe HV system engagement. Use Value: Eliminates need for separate isolated supplies and logic buffers, reducing contactor control circuit size by 40% and supporting ASIL-C diagnostic coverage via integrated UVLO monitoring. |
| Traction Inverter | Industrial Solar Inverter |
|
Use Scenario: Gate driving for motor-phase legs in 200 kW+ traction inverters with SiC power modules. IC Role / Device Role / Timing Role: HS/LS driver with programmable dead time ensuring precise overlap avoidance during high-dv/dt (≥50 V/ns) switching events. Use Value: Reduces gate driver losses by 22% vs. optocoupler-based solutions and supports 150 kHz PWM for torque ripple reduction in permanent magnet motors. |
Use Scenario: Isolated gate drive in string-level DC optimizers and central inverters handling 1500 V DC input. IC Role / Device Role / Timing Role: High-reliability HS/LS driver enabling transformerless topologies with reinforced insulation and 3.75 kVRMS isolation rating. Use Value: Meets IEC 62109 and UL 1741 SB requirements for PV inverters without additional isolation barriers, cutting bill-of-materials cost by $1.20/unit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8230BD-AS1R | Same SOIC-16 narrow-body package and 0.5 A output, but rated for 5.0 kVRMS isolation and 8 V UVLO threshold. | Better suited for 400 V+ systems requiring higher isolation margin (e.g., 800 V traction inverters), but less tolerant of low-VDDI brown-out conditions. | Select Si8230BD-AS1R when 5 kVRMS is mandated by safety standard; choose SI8230AC-AS1R where 3.75 kVRMS suffices and 5 V UVLO improves cold-cranking robustness. |
| UCC21520QDWQ1 | Texas Instruments' automotive 4 A dual-channel isolated driver in SOIC-16 wide-body; 5.7 kVRMS, 3.3/5 V logic compatible, no programmable dead time. | Higher drive strength supports larger SiC modules but lacks hardware-dead-time tuning - requires MCU firmware compensation for overlap control. | Choose UCC21520QDWQ1 for high-current (>2 A) gate drive needs; retain SI8230AC-AS1R when deterministic, resistor-programmed dead time is required for functional safety compliance. |
Compared with Si8230BD-AS1R, SI8230AC-AS1R trades 1.25 kVRMS isolation margin for tighter 5 V UVLO and identical footprint, making it optimal for cost-sensitive 400 V OBCs. Against UCC21520QDWQ1, it offers hardware-enforced dead time at lower peak current - ideal for ASIL-B systems prioritizing timing determinism over raw drive strength.
Availability
SI8230AC-AS1R is available at Aetrix Electronics and suitable for automotive onboard chargers, battery management systems, and industrial solar inverters requiring stable component supply, AEC-Q100 qualification, and long-term lifecycle support.
Supply support for SI8230AC-AS1R 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 leader in analog and mixed-signal semiconductors, specializing in RF, isolation, and precision timing solutions for automotive, industrial, and communications markets.
The Si823x family was designed specifically for high-reliability isolated gate drive in electrified vehicle power systems, combining RF isolation, programmable dead time, and AEC-Q100 qualification to replace aging optocoupler-based architectures.
FAQ
What is the isolation voltage rating of SI8230AC-AS1R?
The SI8230AC-AS1R has a certified 3.75 kVRMS input-to-output isolation rating per UL1577, validated for one minute. This meets reinforced insulation requirements of IEC 62368-1 and supports safe operation in 400 V battery systems with adequate creepage margins in its SOIC-16 narrow-body package.
Does SI8230AC-AS1R support programmable dead time?
Yes, SI8230AC-AS1R supports hardware-programmable dead time via an external resistor (RDT) connected from the DT pin to ground. Dead time is calculated as DT ≈ 10 × RDT (ns), ranging from ~10 ns to 500 ns. Floating the DT pin yields ~400 ps nominal dead time, and a 0.1 µF capacitor is recommended for noise immunity.
What is the UVLO threshold for SI8230AC-AS1R's input supply?
The SI8230AC-AS1R has a 5 V undervoltage lockout (UVLO) threshold on its input-side supply (VDDI), with hysteresis to prevent oscillation during brown-out conditions. This 5 V UVLO is optimized for compatibility with automotive 5 V LDOs and improves reliability during cold-cranking events compared to 8 V variants like SI8230BD-AS1R.
Is SI8230AC-AS1R qualified for automotive applications?
Yes, SI8230AC-AS1R is AEC-Q100 qualified (Grade 1, –40°C to +125°C) and manufactured using full automotive-specific process flows. It includes AIAG-compliant PPAP documentation, IMDS/CAMDS material declarations, and zero-defect methodology - confirming its suitability for safety-critical EV powertrain systems.
How does SI8230AC-AS1R differ from Si8230AD-AS1R?
SI8230AC-AS1R and Si8230AD-AS1R share identical functionality and pinout but differ in isolation rating and package variant: SI8230AC-AS1R is SOIC-16 narrow-body with 3.75 kVRMS, while Si8230AD-AS1R is SOIC-16 wide-body with 5.0 kVRMS. Both use 5 V UVLO and support high-side/low-side drive with programmable dead time.
SI8230AC-AS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si823x
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 3750Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 45ns, 45ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 20ns, 20ns (Max)
- Current - Output High, Low:
- 250mA, 500mA
- Current - Peak Output:
- 500mA
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 6.5V ~ 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, UL, VDE
SI8230AC-AS1R FAQ
1.How can I place an order for SI8230AC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8230AC-AS1R 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 SI8230AC-AS1R reliable?
The price and inventory of SI8230AC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8230AC-AS1R is usually 5 days.
3.What payment methods are accepted for SI8230AC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8230AC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8230AC-AS1R?
SI8230AC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8230AC-AS1R 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 SI8230AC-AS1R?
For technical support, including SI8230AC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8230AC-AS1R requirements.
6.How does Aetrix verify that SI8230AC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8230AC-AS1R 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 SI8230AC-AS1R meets industry standards.
7.What is the process for return or replacement of SI8230AC-AS1R?
All SI8230AC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8230AC-AS1R, 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 SI8230AC-AS1R part is unused and in its original packaging.
Return procedure for SI8230AC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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