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Skyworks Solutions Inc. SI8230BC-AS1R
- Part No.:
- SI8230BC-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8230BC-AS1R.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:4,016
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Product details
Overview
SI8230BC-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 such as onboard chargers and traction inverters.
For engineers reviewing the SI8230BC-AS1R datasheet, SI8230BC-AS1R pinout, SI8230BC-AS1R application, or SI8230BC-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 with documented functional and application differences.
Technical Context
The SI8230BC-AS1R implements RF-based silicon isolation across two independent channels, enabling simultaneous high-side and low-side gate drive with up to 8 MHz switching frequency and 45 ns propagation delay. Its internal dead time control uses an external resistor (RDT) to set delay from ~400 ps to >1 µs, preventing shoot-through in half-bridge topologies.
Each channel features independent undervoltage lockout (UVLO) with 8 V turn-on threshold, and outputs default low during UVLO or disable assertion. The device supports separate or common ground configurations for VDDA/VDDB and operates from 4.5 V to 24 V supply range on both input and output sides.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS per UL1577 - enables safe operation in 600–800 Vdc bus systems with reinforced insulation compliance |
| Peak Output Current | 0.5 A - sufficient to drive standard 1200 V SiC MOSFETs and IGBTs with <10 nC gate charge at ≤100 kHz |
| Propagation Delay | 45 ns max - ensures tight timing control in high-frequency PWM applications like EV traction inverters |
| UVLO Threshold | 8 V (rising), 7.2 V (falling) - prevents erratic gate drive during brown-out conditions in automotive 12 V supply rails |
| Switching Frequency | Up to 8 MHz - supports digital control loops with sub-100 ns resolution in advanced motor control and DC-DC converters |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive environments per AEC-Q100 Grade 1 |
| Package | SOIC-16 narrow body - RoHS-compliant, JEDEC-standard 260 °C reflow compatible, 1.27 mm pitch |
Pinout & Package
SI8230BC-AS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (7.5 mm × 10.3 mm, 1.27 mm pitch) with creepage ≥5.5 mm and clearance ≥5.0 mm per IEC 60664-1 for 3.75 kVRMS isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GNDI | Input-side ground reference | Reference node for VIA, VIB, DISABLE, and VDDI; must be isolated from output grounds |
| VDDI | Input-side supply voltage | 4.5–5.5 V logic supply; powers internal RF transmitter and input comparators |
| VIA | High-side input signal | TTL-compatible, >400 mV hysteresis; controls VOA high/low state directly |
| VIB | Low-side input signal | TTL-compatible, >400 mV hysteresis; controls VOB high/low state directly |
| DISABLE | Global output disable control | Active-high; forces VOA and VOB low unconditionally when asserted |
| DT | Dead time programming input | Connects to ground via RDT to set dead time (DT ≈ 10 × RDT ns); floating = ~400 ps nominal |
| VDDA | High-side driver supply | 4.5–24 V; powers VOA output stage; UVLO monitoring ensures safe turn-off below 8 V |
| VOA | High-side gate drive output | 0.5 A source/sink; drives N-channel MOSFET/IGBT gate referenced to floating high-side source |
| GNDA | High-side ground reference | Output-side return for VDDA and VOA; electrically isolated from GNDI and GNDB |
| VDDB | Low-side driver supply | 4.5–24 V; powers VOB output stage; independent UVLO monitoring |
| VOB | Low-side gate drive output | 0.5 A source/sink; drives N-channel MOSFET/IGBT gate referenced to system ground or isolated rail |
| GNDB | Low-side ground reference | Output-side return for VDDB and VOB; may be tied to system ground or kept isolated |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in one SOIC-16 | Eliminates need for two discrete optocouplers or isolated gate drivers, reducing PCB area by >40% and BOM count |
| Programmable dead time with overlap protection | Prevents shoot-through in half-bridge circuits without external logic; RDT-based tuning enables precise timing alignment |
| AEC-Q100 Grade 1 qualification | Validated for automotive use including thermal cycling, HTOL, and ESD testing - supports PPAP documentation and IMDS/CAMDS reporting |
| RF-based silicon isolation | Delivers 45 ns propagation delay and superior CMTI (>100 kV/µs) vs. optocouplers, enabling stable operation in noisy EV power stages |
| Independent UVLO per channel | Ensures fail-safe shutdown of each output if its respective supply drops - critical for redundancy in battery management systems |
Applications
| Onboard Charger (OBC) | Traction Inverter |
|---|---|
|
Use Scenario: Isolated gate driving for bidirectional AC/DC and DC/DC stages in 11–22 kW EV onboard chargers. IC Role / Device Role / Timing Role: High-side/low-side driver for SiC MOSFET half-bridges in totem-pole PFC and isolated LLC resonant converters. Use Value: 3.75 kVRMS isolation and AEC-Q100 qualification ensure safety and reliability across 1000 Vdc bus transients and automotive temperature cycles. |
Use Scenario: Driving IGBT/SiC modules in 400 V or 800 V traction inverters for BEVs and HEVs. IC Role / Device Role / Timing Role: Dual-channel isolated gate driver with programmable dead time for anti-shoot-through protection in motor phase legs. Use Value: 45 ns propagation delay and 8 MHz capability support field-oriented control (FOC) loops with <1 µs timing resolution. |
| Battery Management System (BMS) | Industrial Solar Inverter |
|
Use Scenario: Isolated control of contactors and precharge circuits in high-voltage battery packs (400–900 V). IC Role / Device Role / Timing Role: High-side driver for HV disconnect switches and low-side driver for status feedback sensing. Use Value: Independent UVLO on VDDA/VDDB guarantees safe open-circuit behavior during partial supply failure in redundant BMS architectures. |
Use Scenario: Gate driving for string-level MPPT and grid-tie H-bridge stages in commercial solar inverters. IC Role / Device Role / Timing Role: Half-bridge driver for 650 V/1200 V IGBTs in transformerless topologies requiring reinforced insulation. Use Value: 3.75 kVRMS rating meets IEC 62109 and UL 1741 SB requirements for DC-side isolation in ungrounded PV systems. |
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 | 5.0 kVRMS isolation, same SOIC-16 narrow-body package, identical pinout and functionality | Required where system-level safety standards mandate 5 kVRMS (e.g., medical 60601-1, industrial 62368-1 reinforced insulation) | Select SI8230BD-AS1R when higher isolation voltage is mandated; no layout or firmware changes needed |
| UCC21520QDWQ1 | TI's dual-channel isolated driver with 5.7 kVRMS, 4 A peak output, and integrated Miller clamp; requires external dead time circuitry | Used in higher-power traction inverters needing >0.5 A drive strength or active Miller clamping for SiC devices | Choose UCC21520QDWQ1 only when 4 A output or Miller clamp functionality is required; not drop-in due to different pinout and enable logic |
Compared with SI8230BC-AS1R, SI8230BD-AS1R offers higher isolation for stricter safety domains but identical drive capability and timing, while UCC21520QDWQ1 provides higher current and extra protection features at the cost of increased complexity and non-interchangeable layout.
Availability
SI8230BC-AS1R is available at Aetrix Electronics and suitable for onboard chargers, traction inverters, and battery management systems requiring stable component supply, automotive qualification, and long-term lifecycle support.
Supply support for SI8230BC-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies for automotive, industrial, and communications markets.
The Si823x family was designed specifically for robust, high-speed isolated gate driving in electrified vehicle power systems and industrial energy conversion, leveraging proprietary RF isolation to replace aging optocoupler-based designs.
FAQ
What is the isolation voltage rating of the SI8230BC-AS1R and which safety standards does it meet?
The SI8230BC-AS1R has a certified 3.75 kVRMS input-to-output isolation rating per UL 1577. It meets CSA 62368-1 (reinforced insulation) and VDE 60747-17 (basic insulation) requirements. This rating supports use in 600–800 Vdc bus applications where reinforced insulation is required, such as EV onboard chargers and industrial solar inverters. SI8230BC-AS1R is not rated for 5 kVRMS applications - for those, SI8230BD-AS1R is the designated variant.
Does the SI8230BC-AS1R support programmable dead time, and how is it configured?
Yes, the SI8230BC-AS1R supports user-programmable dead time via an external resistor (RDT) connected from the DT pin to ground. Dead time is calculated as DT ≈ 10 × RDT (ns), allowing adjustment from ~400 ps (DT pin floating) up to >1 µs. A 0.1 µF ceramic capacitor must be placed in parallel with RDT near the DT pin for noise immunity. This feature is integral to SI8230BC-AS1R's overlap protection architecture and requires no firmware or external logic.
What is the operating supply voltage range for the input and output sides of the SI8230BC-AS1R?
The SI8230BC-AS1R supports VDDI (input side) from 4.5 V to 5.5 V and VDDA/VDDB (output sides) from 4.5 V to 24 V. All supplies have independent undervoltage lockout (UVLO) with 8 V turn-on and 7.2 V turn-off thresholds. This dual-range capability allows SI8230BC-AS1R to interface with 5 V microcontrollers while driving gate circuits powered from 12 V, 15 V, or 24 V rails - essential for flexible power stage design in automotive and industrial systems.
Is the SI8230BC-AS1R pin-compatible with other Si823x variants, and what package does it use?
Yes, SI8230BC-AS1R uses the SOIC-16 narrow-body package (7.5 mm × 10.3 mm, 1.27 mm pitch) and shares identical pinout and footprint with all other Si8230x variants in the same package type, including SI8230BD-AS1R and SI8230AB-AS1R. This enables direct substitution based on isolation or UVLO requirements without PCB redesign. The "BC" suffix denotes 3.75 kVRMS isolation and 8 V UVLO; "BD" = 5.0 kVRMS, "AB" = 5 V UVLO.
How does the SI8230BC-AS1R handle undervoltage conditions on its output supplies (VDDA/VDDB)?
The SI8230BC-AS1R implements independent UVLO monitoring on VDDA and VDDB. If either supply falls below 7.2 V, the corresponding output (VOA or VOB) is forced low and remains latched until the supply rises above 8 V. This behavior is fully decoupled from the input side - VDDI can remain valid while VDDA/VDDB fault, ensuring fail-safe gate control. This dual-UVLO architecture is a core safety feature of SI8230BC-AS1R in automotive BMS and inverter applications.
SI8230BC-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
SI8230BC-AS1R FAQ
1.How can I place an order for SI8230BC-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8230BC-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 SI8230BC-AS1R reliable?
The price and inventory of SI8230BC-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8230BC-AS1R is usually 5 days.
3.What payment methods are accepted for SI8230BC-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8230BC-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8230BC-AS1R?
SI8230BC-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8230BC-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 SI8230BC-AS1R?
For technical support, including SI8230BC-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8230BC-AS1R requirements.
6.How does Aetrix verify that SI8230BC-AS1R is sourced from the original manufacturer or authorized distributors?
All SI8230BC-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 SI8230BC-AS1R meets industry standards.
7.What is the process for return or replacement of SI8230BC-AS1R?
All SI8230BC-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8230BC-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 SI8230BC-AS1R part is unused and in its original packaging.
Return procedure for SI8230BC-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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