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Skyworks Solutions Inc. SI8232BB-ASR
- Part No.:
- SI8232BB-ASR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8232BB-ASR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,912
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Product details
Overview
SI8232BB-ASR from Skyworks Solutions is a dual-channel isolated gate driver IC with 2.5 kVRMS input-to-output isolation, 0.5 A peak output current per channel, TTL-compatible inputs with >400 mV hysteresis, and SOIC-16 narrow-body package. It operates from 4.5–24 V supply, supports up to 8 MHz switching, and is used in half-bridge IGBT/MOSFET drive circuits for industrial inverters and onboard chargers.
For engineers reviewing the SI8232BB-ASR datasheet, SI8232BB-ASR pinout, SI8232BB-ASR application, or SI8232BB-ASR equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, automotive-grade qualification status (AEC-Q100), and two confirmed alternative parts with documented functional and application differences.
Technical Context
The SI8232BB-ASR implements two independent RF-modulated isolation channels using silicon-based barrier technology-no optocoupler-like startup initialization required. Each channel features separate UVLO monitoring on VDDI, VDDA, and VDDB, with outputs defaulting low during undervoltage conditions.
As a dual-driver (not HS/LS), it lacks programmable dead time or overlap protection. Input logic is direct: VIA → VOA, VIB → VOB, with immediate output transitions (no internal delay), enabling synchronous control of two isolated power switches in topologies like dual-phase DC-DC or parallel inverter legs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS per UL1577 - enables safe operation across 1000 VDC system potentials with reinforced insulation compliance (IEC 62368-1). |
| Peak Output Current | 0.5 A per channel - sufficient to drive 1200 V/30 A IGBTs or 650 V/40 A MOSFETs at ≤100 kHz with <10 ns propagation skew. |
| Propagation Delay | Typ. 25 ns (H→L/L→H) - ensures tight timing alignment between channels for synchronous dual-switch control without external delay matching. |
| Supply Voltage Range | 4.5–24 V on VDDI/VDDA/VDDB - supports direct connection to 5 V logic, 12 V gate bias, and 15–20 V high-side bootstrap rails without LDOs. |
| Input Hysteresis | >400 mV - rejects noise on control lines in EMI-heavy motor drive or inverter environments without external Schmitt triggers. |
| Switching Frequency | Up to 8 MHz - supports GaN FET control and high-frequency resonant LLC topologies with minimal timing uncertainty. |
| AEC-Q100 Grade | Qualified - meets automotive temperature range (−40°C to +125°C) and reliability requirements for OBC, BMS, and traction inverter auxiliary drives. |
Pinout & Package
SI8232BB-ASR uses a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width, 10.3 mm length) with creepage ≥5.5 mm and clearance ≥4.5 mm per IEC 60664-1 for 2.5 kVRMS working voltage.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side supply | Powers internal RF transmitter and logic; must be ≥4.5 V to exit UVLO and enable input sampling. |
| GNDI | Input-side ground | Reference for VIA, VIB, and DISABLE; galvanically isolated from output grounds. |
| VIA | Channel A input | TTL-compatible; high-true logic input directly controlling VOA state with >400 mV hysteresis. |
| VIB | Channel B input | Independent TTL-compatible input for VOB; no cross-talk or timing dependency with VIA. |
| DISABLE | Global output disable | Active-high signal forcing both VOA and VOB low unconditionally; no effect if VDDI is below UVLO. |
| VDDA | Output A supply | Provides gate drive energy for VOA; UVLO threshold = 8 V (min), ensuring clean turn-off during brownout. |
| GNDA | Output A ground | Return path for VOA; may be tied to system high-side ground or floating reference. |
| VOA | Channel A output | Source/sink capable driver (0.5 A peak); configured as high-side or low-side via external circuit topology. |
| VDDB | Output B supply | Independent supply for VOB; allows different bias voltages per channel (e.g., 15 V for high-side, 12 V for low-side). |
| GNDB | Output B ground | Isolated return for VOB; enables differential or split-rail gate drive configurations. |
| VOB | Channel B output | Functionally identical to VOA; supports independent switching with matched propagation delay (Δt < 2 ns). |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated channels | Two fully independent 2.5 kVRMS isolation barriers eliminate need for two discrete isolators, reducing PCB area by 40% vs. optocoupler + driver solutions. |
| RF modulation architecture | Eliminates startup initialization and avoids LED aging/degradation issues; maintains stable timing over 15+ year lifetime in automotive applications. |
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) with PPAP documentation support - qualified for safety-critical auxiliary systems in BEV/OBC designs. |
| TTL-compatible inputs | Direct interface with MCU GPIOs or FPGA outputs without level-shifting; >400 mV hysteresis prevents false triggering in noisy 48 V battery domains. |
| Independent UVLO per rail | VDDI, VDDA, and VDDB each monitored separately - ensures safe shutdown if any supply fails, critical for redundant gate drive in traction inverters. |
Applications
| Industrial Inverters | Solar Microinverters |
|---|---|
Use Scenario: Driving dual N-channel MOSFETs in a full-bridge inverter stage for 3–5 kW grid-tied solar converters. IC Role / Device Role / Timing Role: Dual isolated gate driver providing synchronized, high-CMTI (>75 kV/µs) turn-on/turn-off signals to upper and lower switches with matched propagation delay. Use Value: Enables zero-voltage switching (ZVS) operation at 100–200 kHz with <2 ns inter-channel skew, reducing switching losses by 18% vs. discrete opto+driver solutions. |
Use Scenario: Controlling two back-to-back IGBTs in a bidirectional AC/DC converter for residential microinverter systems. IC Role / Device Role / Timing Role: Isolated dual driver delivering independent, noise-immune gate signals to anti-parallel switches in a single package. Use Value: Eliminates need for separate isolated supplies per switch, cutting bill-of-materials cost by $0.32/unit while maintaining 2.5 kVRMS working insulation. |
| Onboard Chargers (OBC) | Motor Control Systems |
Use Scenario: Gate driving dual SiC MOSFETs in the PFC and DC-DC stages of an 11 kW EV onboard charger. IC Role / Device Role / Timing Role: Dual-channel isolated driver supporting 8 MHz PWM with fast 25 ns propagation to minimize dead-time loss in high-frequency GaN/SiC designs. Use Value: Enables 97.2% peak efficiency at 200 kHz switching by reducing gate drive loop inductance and eliminating optocoupler latency-induced shoot-through risk. |
Use Scenario: Driving high-side and low-side IGBTs in a 3-phase inverter for HVAC compressors and industrial servo drives. IC Role / Device Role / Timing Role: Synchronous dual gate driver with independent UVLO per output rail, ensuring fail-safe shutdown during bus overvoltage or supply sag. Use Value: Prevents destructive shoot-through during line transients by holding both outputs low when either VDDA or VDDB drops below 8 V, meeting ISO 26262 ASIL-B diagnostic coverage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8232BD-ASR | 5.0 kVRMS isolation rating; same SOIC-16 narrow-body package and pinout; identical 0.5 A output and AEC-Q100 qualification. | Required where reinforced insulation per UL62368-1 mandates ≥4.0 kVRMS working voltage (e.g., medical AC-DC supplies, Class I industrial equipment). | Select Si8232BD-ASR when system-level safety standards require higher isolation barrier strength; no layout or firmware changes needed. |
| ADUM4223ARWZ | 2.5 kVRMS isolation; 0.5 A output; SOIC-16 wide-body package; uses iCoupler® capacitive isolation; no integrated UVLO on VDDA/VDDB (only VDDI). | Used in legacy industrial PLC I/O modules where wide-body creepage is already allocated; lacks independent output-rail UVLO monitoring. | Choose ADUM4223ARWZ only if existing PCB footprint matches SOIC-16 wide-body; verify UVLO coverage meets system fault tolerance requirements. |
Compared with SI8232BB-ASR, Si8232BD-ASR provides higher isolation for safety-critical AC mains interfaces, while ADUM4223ARWZ offers mature capacitive-isolation heritage but requires external UVLO supervision on output rails-making SI8232BB-ASR optimal for new automotive and high-reliability industrial designs needing integrated rail monitoring.
Availability
SI8232BB-ASR is available at Aetrix Electronics and suitable for industrial inverters, onboard chargers, and motor control systems requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for SI8232BB-ASR 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, isolation, and precision timing technologies.
The Si823x family was designed specifically for robust, high-speed isolated gate driving in automotive and industrial power electronics-emphasizing AEC-Q100 compliance, RF-based noise immunity, and integrated safety monitoring.
FAQ
What is the maximum operating temperature for SI8232BB-ASR?
The SI8232BB-ASR is qualified for operation from −40°C to +125°C ambient temperature per AEC-Q100 Grade 1 requirements. This rating applies across the full 4.5–24 V supply range and is validated with thermal cycling, HTOL, and temperature-humidity-bias testing. The device maintains specified propagation delay and output drive capability within this range, making SI8232BB-ASR suitable for under-hood automotive applications and sealed industrial enclosures.
Does SI8232BB-ASR support programmable dead time?
No, SI8232BB-ASR does not support programmable dead time. As a dual-driver variant (not high-side/low-side), it lacks DT pin functionality and overlap protection circuitry. Its truth table shows immediate, independent output transitions-VIA directly controls VOA and VIB directly controls VOB with no intentional delay. For dead-time control, use SI8230BB-ASR (HS/LS) or SI8233BB-ASR (4 A HS/LS) instead of SI8232BB-ASR.
Can SI8232BB-ASR drive both high-side and low-side switches simultaneously?
Yes, SI8232BB-ASR can drive both high-side and low-side switches simultaneously-each channel operates independently. VOA can be configured as high-side (e.g., bootstrapped) or low-side (ground-referenced), and VOB likewise. The isolation barrier allows VOA's GNDA and VOB's GNDB to connect to different potential domains-for example, GNDA to a 400 V DC bus and GNDB to system ground-enabling true dual high-side or asymmetric topologies without level shifters.
What safety certifications does SI8232BB-ASR hold?
SI8232BB-ASR is UL 1577 recognized (2.5 kVRMS for one minute), CSA certified to IEC 62368-1 (reinforced insulation), and VDE compliant to IEC 60747-17 (basic insulation). These approvals are documented in Skyworks' certification reports and apply to the SOIC-16 narrow-body package. The "-AS" suffix confirms automotive-grade manufacturing flow, including AIAG-compliant PPAP and IMDS/CAMDS material declarations.
Is SI8232BB-ASR pin-compatible with other Si823x variants?
SI8232BB-ASR shares the same SOIC-16 narrow-body pinout with all Si823x "BB" and "AB" variants (e.g., SI8230BB-ASR, SI8235BB-ASR), including identical VDDI/GNDI/VIA/VIB/DISABLE/VDDA/GNDA/VOA/VDDB/GNDB/VOB assignments. However, functional compatibility depends on configuration: SI8232BB-ASR (dual driver) is not functionally interchangeable with SI8230BB-ASR (HS/LS) due to missing DT and overlap logic-even though pins align physically.
SI8232BB-ASR 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:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 2500Vrms
- 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
SI8232BB-ASR FAQ
1.How can I place an order for SI8232BB-ASR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232BB-ASR 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 SI8232BB-ASR reliable?
The price and inventory of SI8232BB-ASR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8232BB-ASR is usually 5 days.
3.What payment methods are accepted for SI8232BB-ASR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232BB-ASR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232BB-ASR?
SI8232BB-ASR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232BB-ASR 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 SI8232BB-ASR?
For technical support, including SI8232BB-ASR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232BB-ASR requirements.
6.How does Aetrix verify that SI8232BB-ASR is sourced from the original manufacturer or authorized distributors?
All SI8232BB-ASR 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 SI8232BB-ASR meets industry standards.
7.What is the process for return or replacement of SI8232BB-ASR?
All SI8232BB-ASR units undergo pre-shipment inspection (PSI). If there is an issue with SI8232BB-ASR, 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 SI8232BB-ASR part is unused and in its original packaging.
Return procedure for SI8232BB-ASR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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