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Skyworks Solutions Inc. SI8232AB-D-IS
- Part No.:
- SI8232AB-D-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8232AB-D-IS.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,356
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Product details
Overview
SI8232AB-D-IS 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 dual-input (VIA/VIB) logic interface, and SOIC-16 narrow-body RoHS-compliant package. It operates across –40°C to +125°C and supports isolated MOSFET/IGBT drive in half-bridge and dual-switch topologies.
For engineers reviewing the SI8232AB-D-IS datasheet, SI8232AB-D-IS pinout, SI8232AB-D-IS application, or SI8232AB-D-IS equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, confirmed automotive-grade alternatives, and supply-chain support details specific to this exact industrial-grade variant.
Technical Context
The SI8232AB-D-IS implements two fully independent, galvanically isolated driver channels using Skyworks' proprietary silicon RF isolation barrier-enabling up to 1500 VDC differential voltage between outputs and eliminating ground-loop constraints. Each channel features TTL-level inputs with >400 mV hysteresis and operates with separate input-side (VDDI) and output-side (VDDA/VDDB) supplies.
Unlike high-side/low-side variants, this dual-driver configuration lacks programmable dead time and overlap protection; outputs respond immediately to input transitions with no internal delay. UVLO thresholds are fixed at 5 V (VDDIUV+), ensuring reliable startup and shutdown behavior across wide temperature ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS per UL1577 - enables safe operation in 600 VAC mains-referenced systems with reinforced insulation compliance per IEC 62368-1. |
| Peak Output Current | 0.5 A per channel - sufficient to drive standard 1200 V/30 A IGBTs or 650 V SiC MOSFETs with <10 nC gate charge at ≤1 MHz switching. |
| Propagation Delay | ≤45 ns (typ.) - supports precise timing control in high-frequency power converters without requiring external delay compensation. |
| Supply Voltage Range | VDDI: 4.5–5.5 V; VDDA/VDDB: 10–24 V - decouples logic-level input domain from high-voltage output domain for robust noise immunity. |
| UVLO Threshold | 5 V (rising) - prevents erratic output behavior during brown-out conditions and ensures clean turn-on only after stable input rail establishment. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive subsystems and industrial motor drives without derating. |
| Package | SOIC-16 narrow body - provides 2.5 mm creepage/clearance and compatibility with standard SMT reflow profiles (260°C peak). |
Pinout & Package
SI8232AB-D-IS uses a 16-pin SOIC narrow-body package with 1.27 mm pitch and 10.3 mm × 7.5 mm footprint. Pin 1 is marked by a dot; pin numbering follows standard SOIC convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VIA) | Input A signal | TTL-compatible logic input controlling output VOA; high-true, >400 mV hysteresis prevents noise-induced toggling. |
| 2 (VIB) | Input B signal | TTL-compatible logic input controlling output VOB; independent of VIA, enabling asynchronous dual-switch control. |
| 3 (GNDI) | Input-side ground | Reference for VDDI and digital inputs; must be isolated from output-side grounds to maintain 2.5 kVRMS barrier integrity. |
| 4 (VDDI) | Input-side supply | 5 V ±5% supply powering internal RF transmitter and logic; requires local 0.1 µF ceramic decoupling. |
| 5 (DISABLE) | Global disable control | Active-high signal forcing both VOA and VOB low regardless of VIA/VIB state; used for fault shutdown or soft-start sequencing. |
| 6 (NC) | No connect | Internally unconnected; must remain floating or grounded per layout guidelines to avoid parasitic coupling. |
| 7 (VOA) | Output A driver | 0.5 A source/sink capable output referenced to GNDA; drives high-side or low-side switch gate directly or via RC network. |
| 8 (GNDA) | Output A ground | Return path for VOA; may be tied to system power ground or isolated reference depending on topology (e.g., bootstrap vs. level-shifted). |
| 9 (VDDA) | Output A supply | 10–24 V supply for VOA driver stage; sets maximum gate drive voltage and influences rise/fall times. |
| 10 (VOB) | Output B driver | 0.5 A source/sink capable output referenced to GNDB; electrically isolated from VOA and GNDA for true dual-domain operation. |
| 11 (GNDB) | Output B ground | Return path for VOB; may differ from GNDA to enable floating load configurations (e.g., dual half-bridges). |
| 12 (VDDB) | Output B supply | 10–24 V supply for VOB driver stage; independently configurable from VDDA to support asymmetric gate drive requirements. |
| 13–16 (NC) | No connect | All four pins are internally unconnected; must not be bonded or routed to avoid compromising isolation or thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolated channels | Enables fully decoupled control of two switches in isolated DC-DC converters or dual-phase inverters without shared ground constraints. |
| Silicon RF isolation barrier | Delivers 2.5 kVRMS withstand voltage with <100 ps jitter and immunity to magnetic fields-superior to optocoupler-based solutions. |
| TTL-compatible inputs with hysteresis | Accepts 3.3 V or 5 V logic directly; >400 mV hysteresis rejects common-mode noise up to ±2 kV/µs dV/dt transients. |
| Independent UVLO per side | Prevents partial operation: VOA/VOB remain low if VDDI < 5 V or VDDA/VDDB fall below their respective UVLO thresholds. |
| SOIC-16 narrow-body package | Reduces PCB area by 25% vs. wide-body variants while maintaining full 2.5 kVRMS rating and JEDEC-compliant reflow compatibility. |
Applications
| Motor Control Systems | Solar Inverters |
|---|---|
|
Use Scenario: Driving upper/lower IGBTs in three-phase inverter legs for HVAC compressors and industrial servo drives. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, noise-immune control of high- and low-side switches in each phase leg. Use Value: Enables precise PWM timing with ≤45 ns propagation delay and eliminates cross-conduction risk through independent channel operation. |
Use Scenario: Controlling MOSFETs in string-level DC-DC optimizers and transformerless grid-tied inverters. IC Role / Device Role / Timing Role: Isolated dual driver delivering 0.5 A gate current to fast-switching Si MOSFETs operating at 50–100 kHz. Use Value: 2.5 kVRMS isolation meets IEC 62109 safety requirements for PV systems while supporting high-efficiency synchronous rectification. |
| Onboard Chargers (OBC) | Industrial UPS Systems |
|
Use Scenario: Gate driving of bidirectional AC-DC and DC-DC stages in EV onboard chargers with 6.6 kW power levels. IC Role / Device Role / Timing Role: Dual-channel isolated driver managing active clamp and synchronous rectifier FETs in resonant LLC topologies. Use Value: –40°C to +125°C operation ensures reliability in under-hood environments; SOIC-16 narrow body eases thermal management in compact OBC modules. |
Use Scenario: Controlling parallel IGBT modules in double-conversion UPS systems requiring redundancy and fault tolerance. IC Role / Device Role / Timing Role: Independent isolated drivers for redundant gate paths, allowing hot-swap capability and graceful degradation during faults. Use Value: 1500 VDC driver-to-driver differential voltage rating supports paralleled high-current modules without inter-channel coupling risks. |
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 |
|---|---|---|---|
| SI8232AD-D-IS | 5.0 kVRMS isolation rating; same 0.5 A output, dual-input, SOIC-16 wide-body package. | Required where reinforced insulation per UL60747-17 or 60601-1 (2 MOPP) is mandated for medical or high-voltage industrial equipment. | Select SI8232AD-D-IS when system-level safety certification demands higher isolation voltage than 2.5 kVRMS. |
| UCC5390SCD | TI device with 3.75 kVRMS isolation, 4 A peak output, single-input PWM mode only, SOIC-16 package. | Designed for high-current half-bridge control with integrated dead-time generation-not suitable for independent dual-switch control. | Choose UCC5390SCD only for high-power half-bridge applications needing >0.5 A drive and PWM-only interface; not functionally interchangeable. |
Compared with SI8232AB-D-IS, SI8232AD-D-IS offers higher isolation for safety-critical systems but requires more PCB area, while UCC5390SCD provides higher drive strength but lacks dual independent inputs and programmable flexibility for non-half-bridge topologies.
Availability
SI8232AB-D-IS is available at Aetrix Electronics and suitable for motor control systems, solar inverters, onboard chargers, and industrial UPS systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for SI8232AB-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 Si823x family was engineered specifically for high-reliability isolated gate driving in power conversion systems-emphasizing robustness, low propagation delay, and seamless integration into automotive and industrial motor/inverter designs.
FAQ
What is the isolation voltage rating of the SI8232AB-D-IS?
The SI8232AB-D-IS has a certified 2.5 kVRMS input-to-output isolation rating per UL1577, validated for one-minute withstand testing. This rating supports use in Class II insulated systems and meets reinforced insulation requirements under IEC 62368-1 for end equipment up to 600 VAC mains voltage. The SI8232AB-D-IS does not meet 5.0 kVRMS requirements-those apply only to variants with "-D" suffixes like SI8232AD-D-IS.
Does the SI8232AB-D-IS support programmable dead time?
No, the SI8232AB-D-IS does not include programmable dead time or overlap protection circuitry. As a dual-driver variant (not high-side/low-side), it responds immediately to input transitions-unlike SI8230/3/4/5 parts which integrate DT pins and overlap recovery logic. This makes SI8232AB-D-IS ideal for independent switch control but unsuitable for half-bridge configurations requiring synchronized complementary outputs.
What are the UVLO thresholds for the SI8232AB-D-IS?
The SI8232AB-D-IS features a fixed 5 V rising UVLO threshold (VDDIUV+) on the input side and matching 5 V thresholds on VDDA and VDDB output supplies. Outputs VOA and VOB remain low until all three supplies exceed 5 V; hysteresis ensures clean release above 5.25 V. This differs from "-BD" variants (e.g., SI8232BD-D-IS), which use 8 V UVLO thresholds for higher-noise industrial environments.
Can the SI8232AB-D-IS drive SiC MOSFETs effectively?
Yes-the SI8232AB-D-IS delivers 0.5 A peak source/sink current with ≤45 ns propagation delay and <10 ns skew, making it suitable for driving discrete 650 V SiC MOSFETs with gate charges under 10 nC at switching frequencies up to 500 kHz. Its 2.5 kVRMS isolation and –40°C to +125°C rating further support rugged SiC-based designs in EV traction inverters and industrial PFC stages.
Is the SI8232AB-D-IS qualified for automotive applications?
The SI8232AB-D-IS itself is an industrial-grade part (suffix "-I"). However, its automotive-grade counterpart SI8232AB-AS is AEC-Q100 qualified, manufactured with automotive-specific process flows, and supported with PPAP documentation. For automotive designs requiring qualification evidence, SI8232AB-AS-not SI8232AB-D-IS-must be selected and sourced accordingly.
SI8232AB-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:
- 2
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 20kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 60ns, 60ns
- 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, UR, VDE
SI8232AB-D-IS FAQ
1.How can I place an order for SI8232AB-D-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232AB-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 SI8232AB-D-IS reliable?
The price and inventory of SI8232AB-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 SI8232AB-D-IS is usually 5 days.
3.What payment methods are accepted for SI8232AB-D-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232AB-D-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232AB-D-IS?
SI8232AB-D-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232AB-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 SI8232AB-D-IS?
For technical support, including SI8232AB-D-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232AB-D-IS requirements.
6.How does Aetrix verify that SI8232AB-D-IS is sourced from the original manufacturer or authorized distributors?
All SI8232AB-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 SI8232AB-D-IS meets industry standards.
7.What is the process for return or replacement of SI8232AB-D-IS?
All SI8232AB-D-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI8232AB-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 SI8232AB-D-IS part is unused and in its original packaging.
Return procedure for SI8232AB-D-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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