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Skyworks Solutions Inc. SI82308B-D-IS1
- Part No.:
- SI82308B-D-IS1
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82308B-D-IS1.pdf
- Description:
- DIGITAL ISO 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,568
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Product details
Overview
SI82308B-D-IS1 from Skyworks Solutions is a dual-channel isolated gate driver IC with 4.0 A peak output current per channel, 5.0 kVRMS input-to-output isolation, and SOIC-16 narrow-body package. It implements two independent isolated drivers in one monolithic IC, supports TTL-compatible inputs with >400 mV hysteresis, and is designed for high-reliability half-bridge and dual-MOSFET/IGBT drive in industrial inverters and onboard chargers.
For engineers reviewing the SI82308B-D-IS1 datasheet, SI82308B-D-IS1 pinout, SI82308B-D-IS1 application, or SI82308B-D-IS1 equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, confirmed automotive-grade alternatives, and supply-chain support details specific to this exact part number.
Technical Context
The SI82308B-D-IS1 belongs to the Si823x dual-driver variant (not HS/LS), using RF-based silicon isolation with semiconductor barrier-no optocoupler or transformer. It features independent UVLO monitoring on VDDA and VDDB (5 V threshold), no internal dead-time control, and immediate output response to VIA/VIB transitions without overlap protection logic.
Its input stage accepts TTL-level VIA and VIB signals with >400 mV hysteresis; outputs VOA and VOB are fully isolated, each capable of sourcing/sinking up to 4.0 A peak into capacitive loads, operating across –40°C to +125°C with 24 V max supply voltage and RoHS-compliant SOIC-16 narrow-body packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS per UL1577 - enables reinforced insulation in 1500 VDC systems like solar inverters and traction drives |
| Peak Output Current | 4.0 A per channel - sufficient to directly drive high-Qg MOSFETs/IGBTs without external buffers in 10–20 kHz switching applications |
| Propagation Delay | ≤45 ns - ensures tight timing alignment between dual channels for synchronous gate control in half-bridge topologies |
| UVLO Threshold | 5 V (VDDA/VDDB) - prevents erratic switching during brown-out conditions common in battery-fed motor controllers |
| Supply Voltage Range | 4.5–24 V on VDDA/VDDB - supports direct connection to 12 V or 15 V gate drive rails without LDO regulation |
| Input Hysteresis | >400 mV - rejects noise on control lines in EMI-heavy environments such as EV power stages and industrial PLCs |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive use and industrial ambient conditions without derating |
Pinout & Package
SI82308B-D-IS1 uses a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width, 10.3 mm length) with creepage ≥8.0 mm and clearance ≥7.0 mm per IEC 60664-1 for 5 kVRMS isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side ground and power | GNDI (Pin 1), VDDI (Pin 8): powers isolated input die; pins 2–7 unused or NC per layout guidelines |
| 9, 10 | Independent logic inputs | VIA (Pin 9), VIB (Pin 10): TTL-compatible, high-true inputs controlling VOA and VOB respectively |
| 11, 12, 13, 14, 15, 16 | Output-side power, ground, and outputs | VDDA (Pin 11), GNDA (Pin 12), VOA (Pin 13), VDDB (Pin 14), GNDB (Pin 15), VOB (Pin 16): dual isolated output domains with independent UVLO |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated output channels | Two independent 4.0 A drivers with separate VDDA/GNDA and VDDB/GNDB domains - eliminates need for two discrete isolators in dual-switch topologies |
| Silicon RF isolation barrier | 5.0 kVRMS withstand, 1500 VDC driver-to-driver differential - achieves higher CMTI (>100 kV/µs) and longer lifetime than optocouplers |
| TTL-compatible inputs with hysteresis | >400 mV input hysteresis - suppresses false triggering from EFT bursts or conducted noise in motor drive PCBs |
| Independent UVLO per output domain | VDDA and VDDB each monitored at 5 V threshold - prevents shoot-through if one gate rail collapses while the other remains active |
| SOIC-16 narrow-body footprint | Standard 150 mil width, 16-pin layout - enables drop-in replacement of legacy dual drivers without board rework |
Applications
| Industrial Inverters | Solar Power Optimizers |
|---|---|
Use Scenario: Driving complementary MOSFET pairs in 3-phase inverters for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Dual isolated gate driver providing simultaneous, independently referenced VOA/VOB outputs for high-side and low-side switches in each leg. Use Value: 4.0 A peak current and 45 ns propagation delay enable clean 16 kHz PWM switching with <10 ns skew, reducing conduction losses and thermal stress. |
Use Scenario: Controlling DC-DC converter MOSFETs in module-level power electronics (MLPE) for residential PV arrays. IC Role / Device Role / Timing Role: Isolated dual driver delivering independent gate control to buck/boost switches with reinforced insulation for Class II system compliance. Use Value: 5.0 kVRMS isolation and –40°C to +125°C operation ensure reliability in outdoor enclosures exposed to wide temperature swings and humidity. |
| Onboard EV Chargers | Traction Inverter Pre-driver Stage |
Use Scenario: Gate driving SiC MOSFET half-bridges in bidirectional AC/DC converters for Level 2 EVSE units. IC Role / Device Role / Timing Role: Dual-channel isolated driver supplying robust 4.0 A gate current to high-speed SiC switches with independent UVLO on each output rail. Use Value: TTL input compatibility and >400 mV hysteresis tolerate noisy MCU GPIO outputs in compact, high-density charger PCBs. |
Use Scenario: Providing isolated gate drive signals to IGBT modules in hybrid electric vehicle (HEV) main traction inverters. IC Role / Device Role / Timing Role: Dual isolated driver serving as pre-driver stage before high-current gate driver ICs or discrete buffers. Use Value: SOIC-16 narrow-body package fits constrained space near IGBT modules while maintaining 5 kVRMS creepage for functional safety compliance. |
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 |
|---|---|---|---|
| Si8235BD-D-IS1 | Same SOIC-16 narrow-body package, 4.0 A output, 5.0 kVRMS isolation, but 8 V UVLO threshold instead of 5 V | Better suited for 12–15 V gate drive rails where higher UVLO margin prevents premature shutdown during transient dips | Select when gate supply stability exceeds ±10% and system prioritizes robustness over low-voltage startup capability |
| Si8235AD-D-IS1 | Identical pinout and function, but 2.5 kVRMS isolation rating and 5 V UVLO - same input/output behavior as SI82308B-D-IS1 | Approved for non-safety-critical auxiliary power supplies and low-voltage motor drives where 5 kVRMS is not mandated | Choose for cost-sensitive industrial designs requiring same timing and drive strength but lower isolation certification burden |
Compared with SI82308B-D-IS1, Si8235BD-D-IS1 offers higher UVLO headroom at the expense of reduced low-voltage startup capability, while Si8235AD-D-IS1 maintains identical logic behavior and drive strength but trades isolation rating for cost and qualification scope.
Availability
SI82308B-D-IS1 is available at Aetrix Electronics and suitable for industrial inverters, onboard EV chargers, and solar power optimizers requiring stable component supply, automotive-grade traceability, and long-term lifecycle continuity.
Supply support for SI82308B-D-IS1 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 engineered to replace optocoupler-based gate drivers in high-reliability power conversion systems, delivering superior CMTI, lifetime stability, and integration density for EV, renewable energy, and industrial automation applications.
FAQ
What is the isolation voltage rating of SI82308B-D-IS1?
The SI82308B-D-IS1 has a certified 5.0 kVRMS input-to-output isolation rating per UL 1577, validated for one-minute withstand testing. This enables reinforced insulation in systems with working voltages up to 1500 VDC, including solar string inverters and EV traction stages. The isolation barrier uses Skyworks' proprietary silicon RF technology-not optocouplers or transformers-ensuring stable performance over temperature and lifetime.
Does SI82308B-D-IS1 include programmable dead time?
No, SI82308B-D-IS1 does not include programmable dead time or overlap protection. As a dual-driver variant (not high-side/low-side), it lacks DT pin functionality and internal logic for inter-channel timing control. Its truth table shows immediate VOA/VOB response to VIA/VIB inputs. For dead-time-controlled half-bridge applications, SI82303BD-D-IS1 or SI8233BD-D-IS1 are appropriate alternatives.
What are the UVLO thresholds for SI82308B-D-IS1?
SI82308B-D-IS1 features independent 5 V UVLO thresholds on both VDDA and VDDB supply rails. When either rail drops below 5 V, its corresponding output (VOA or VOB) is forced low until the supply recovers above 5 V. The input-side VDDI also has a 5 V UVLO, holding both outputs low until powered. This triple-domain UVLO prevents shoot-through during asymmetric power sequencing.
Can SI82308B-D-IS1 drive SiC MOSFETs directly?
Yes, SI82308B-D-IS1 can directly drive medium-power SiC MOSFETs. With 4.0 A peak source/sink current, <45 ns propagation delay, and <10 ns channel-to-channel skew, it meets gate drive requirements for 1200 V SiC devices with Qg ≤ 50 nC at 10–20 kHz switching frequencies. Layout best practices-short gate loops, local 100 nF ceramic decoupling at VDDA/VDDB-are essential to maintain signal integrity.
Is SI82308B-D-IS1 qualified for automotive applications?
SI82308B-D-IS1 is an industrial-grade part (suffix "-I") and is not AEC-Q100 qualified. For automotive use, Skyworks offers the pin-compatible automotive-grade variant SI82308B-D-AS1, which undergoes full automotive process flows, PPAP documentation, IMDS/CAMDS compliance, and zero-defect manufacturing. Both share identical electrical specs and SOIC-16 narrow-body packaging.
SI82308B-D-IS1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- -
- 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:
- -
- 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
SI82308B-D-IS1 FAQ
1.How can I place an order for SI82308B-D-IS1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82308B-D-IS1 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 SI82308B-D-IS1 reliable?
The price and inventory of SI82308B-D-IS1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82308B-D-IS1 is usually 5 days.
3.What payment methods are accepted for SI82308B-D-IS1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82308B-D-IS1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82308B-D-IS1?
SI82308B-D-IS1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82308B-D-IS1 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 SI82308B-D-IS1?
For technical support, including SI82308B-D-IS1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82308B-D-IS1 requirements.
6.How does Aetrix verify that SI82308B-D-IS1 is sourced from the original manufacturer or authorized distributors?
All SI82308B-D-IS1 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 SI82308B-D-IS1 meets industry standards.
7.What is the process for return or replacement of SI82308B-D-IS1?
All SI82308B-D-IS1 units undergo pre-shipment inspection (PSI). If there is an issue with SI82308B-D-IS1, 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 SI82308B-D-IS1 part is unused and in its original packaging.
Return procedure for SI82308B-D-IS1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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