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Skyworks Solutions Inc. SI8232AC-D-IS1R
- Part No.:
- SI8232AC-D-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8232AC-D-IS1R.pdf
- Description:
- DGT ISO 3.75KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,578
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Product details
Overview
SI8232AC-D-IS1R from Skyworks Solutions is a dual-channel isolated gate driver IC with 3.75 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 industrial inverters and motor control systems.
For engineers reviewing the SI8232AC-D-IS1R datasheet, SI8232AC-D-IS1R pinout, SI8232AC-D-IS1R application, or SI8232AC-D-IS1R equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application differences.
Technical Context
The SI8232AC-D-IS1R implements two fully independent, galvanically isolated driver channels using Skyworks' proprietary silicon RF-based isolation barrier-no optocoupler or transformer required. Each channel features TTL-level inputs with >400 mV hysteresis and direct low-side output drive capability without external level-shifting.
Unlike high-side/low-side variants (e.g., SI8230), the SI8232AC-D-IS1R lacks internal dead-time control or overlap protection; its dual-driver architecture enables synchronous or complementary switching via separate VIA/VIB signals, supporting flexible gate drive configurations in isolated DC-DC converters and dual-phase motor drivers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS per UL1577 - enables reinforced insulation in 300–600 VDC bus applications with ≥8 mm creepage/clearance in SOIC-16 narrow-body package. |
| 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 switching frequency with <10 ns propagation delay mismatch. |
| Propagation Delay | Typical 25 ns (H→L/L→H) - ensures tight timing alignment between channels for dual-switch synchronization in resonant LLC or dual-active-bridge topologies. |
| UVLO Threshold | 5 V (rising), 4.5 V (falling) on VDDI - prevents erratic output behavior during brown-out conditions in industrial power supplies with unregulated 5 V rails. |
| Supply Voltage Range | VDDI: 4.5–5.5 V; VDDA/VDDB: 9–24 V - allows direct connection to standard 5 V logic controllers and wide-range 12–24 V gate drive supplies without LDOs. |
| Switching Frequency | Up to 8 MHz - supports high-frequency GaN FET driving in compact AC-DC adapters and USB-PD programmable power supplies. |
| EMI Immunity | High electromagnetic immunity per IEC 61000-4-4/6 - maintains reliable operation in noisy motor drive cabinets with 4 kV EFT and 10 V/m radiated RF fields. |
Pinout & Package
SI8232AC-D-IS1R uses a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width, 10.3 mm length, 2.35 mm height) with 1.27 mm pitch and 0.25 mm lead thickness. Creepage distance exceeds 8.0 mm between input and output sides.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side ground and supply pins | GNDI (pins 1, 8), VDDI (pin 2), VIA (pin 3), VIB (pin 4), DISABLE (pin 5), NC (pins 6–7) - input domain powered separately from outputs; DISABLE forces both outputs low when high. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side driver terminals | VOA (pin 9), GNDA (pin 10), VDDA (pin 11), VOB (pin 12), GNDB (pin 13), VDDB (pin 14), NC (pins 15–16) - each channel has dedicated ground, supply, and output; no shared output return path required. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolated channels | Enables fully decoupled gate drive for two switches in series (e.g., dual-leg inverter phase) without shared reference or cross-talk risk. |
| 3.75 kVRMS isolation rating | Meets reinforced insulation requirements per IEC 62368-1 and IEC 60601-1 (2 MOPP) for medical and industrial safety-critical systems. |
| TTL-compatible inputs with 400 mV hysteresis | Accepts standard 3.3 V or 5 V microcontroller GPIO directly-no external pull-ups or Schmitt triggers needed for noise margin in factory automation environments. |
| –40°C to +125°C operating range | Supports under-hood automotive auxiliary power modules and industrial servo drives without derating or thermal throttling. |
| AEC-Q100 qualified (Grade 1) | Validated for automotive-grade reliability including HTOL, TC, and UHAST-enables use in onboard chargers and battery management system precharge circuits. |
Applications
| Industrial Inverters | Solar Microinverters |
|---|---|
Use Scenario: Isolated gate drive for dual IGBTs in 3-phase 400 VAC motor drives with regenerative braking. IC Role / Device Role / Timing Role: Dual-channel isolated driver providing independent, synchronized turn-on/turn-off control to upper and lower leg switches in each inverter phase. Use Value: 25 ns inter-channel propagation delay matching minimizes shoot-through risk; 3.75 kVRMS isolation withstands 1200 VDC bus transients per IEC 61000-4-5. |
Use Scenario: Gate drive for back-to-back SiC MOSFETs in single-phase 240 VAC grid-tied microinverter H-bridge. IC Role / Device Role / Timing Role: Dual isolated driver enabling bidirectional power flow control with independent high- and low-side switching. Use Value: 8 MHz max switching frequency supports >100 kHz resonant operation; SOIC-16 narrow-body footprint saves PCB area in space-constrained rooftop units. |
| Isolated DC-DC Converters | Industrial Motor Drives |
Use Scenario: Driving synchronous rectifiers and primary-side switches in 1 kW isolated LLC resonant converter. IC Role / Device Role / Timing Role: Dual-channel driver delivering matched timing to secondary-side SR FETs and primary-side half-bridge switches across isolation barrier. Use Value: Independent VDDA/VDDB supplies allow optimized gate voltage (e.g., 12 V for primary, 5 V for SR) without level shifters; 0.5 A output sustains 20 ns rise time into 1 nF load. |
Use Scenario: Gate drive for dual 750 V IGBTs in HVAC variable-frequency drive with integrated braking chopper. IC Role / Device Role / Timing Role: Dual isolated driver controlling main inverter legs and dynamic braking switch independently. Use Value: AEC-Q100 qualification ensures long-term reliability in continuous-duty HVAC compressors; 5 V UVLO prevents false triggering during 24 V control rail dips. |
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-D-IS1R | Same dual-driver function but 5.0 kVRMS isolation and 8 V UVLO threshold; identical SOIC-16 narrow-body package. | Better suited for 1000 VDC bus systems requiring higher isolation (e.g., traction inverters); less tolerant of 5 V logic rail droop. | Select SI8232BD-D-IS1R when UL 5000 VRMS certification or 8 V UVLO hysteresis is mandatory; otherwise SI8232AC-D-IS1R offers optimal cost/performance for 300–600 VDC applications. |
| ADUM4223ARWZ | Analog Devices dual isolated driver with 5 kVRMS, 4 A peak output, and integrated Miller clamp; uses iCoupler magnetic isolation. | Higher drive strength supports larger IGBTs; Miller clamp prevents spurious turn-on in high-dV/dt environments; requires external gate resistors. | Choose ADUM4223ARWZ for high-power (>10 kW) motor drives needing active Miller clamping; SI8232AC-D-IS1R remains preferred for cost-sensitive, medium-power designs where 0.5 A suffices. |
Compared with SI8232BD-D-IS1R, SI8232AC-D-IS1R trades 1.25 kVRMS isolation margin for tighter 5 V UVLO compatibility with standard microcontrollers; versus ADUM4223ARWZ, it offers lower gate drive current but eliminates external components and reduces BOM count in compact 1–3 kW systems.
Availability
SI8232AC-D-IS1R is available at Aetrix Electronics and suitable for industrial inverters, solar microinverters, isolated DC-DC converters, and industrial motor drives requiring stable component supply, automotive-grade traceability, and long-lifecycle support.
Supply support for SI8232AC-D-IS1R 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 wireless, automotive, and industrial markets.
The Si823x family was designed specifically for robust, high-speed isolated gate driving in power conversion systems-emphasizing low propagation delay, high CMTI, and AEC-Q100 compliance for mission-critical automotive and industrial applications.
FAQ
What is the maximum recommended switching frequency for SI8232AC-D-IS1R?
The SI8232AC-D-IS1R supports up to 8 MHz switching frequency per datasheet specifications. This enables use with fast-switching GaN FETs in high-density AC-DC adapters and USB-PD power supplies. At 8 MHz, propagation delay remains stable at ~25 ns, and rise/fall times stay below 10 ns into 100 pF loads-critical for minimizing switching losses in high-frequency topologies.
Does SI8232AC-D-IS1R include built-in dead-time control or overlap protection?
No, SI8232AC-D-IS1R does not include programmable dead-time control or overlap protection. As a dual-driver (not high-side/low-side) variant, it provides independent channel control only-timing coordination must be handled externally by the controller. This differs from SI8230/SI8233 devices, which integrate DT pins and overlap recovery logic for half-bridge applications.
Can SI8232AC-D-IS1R drive both N-channel and P-channel MOSFETs?
Yes, SI8232AC-D-IS1R can drive both N-channel and P-channel MOSFETs. Its outputs are non-inverting, push-pull drivers referenced to their respective GNDA/GNDB grounds. For high-side P-MOSFETs, connect VOA to gate and GNDA to source; for low-side N-MOSFETs, connect VOB to gate and GNDB to source-no level-shifting circuitry required due to full galvanic isolation.
What safety certifications apply to SI8232AC-D-IS1R?
SI8232AC-D-IS1R carries UL 1577 recognition (3.75 kVRMS for one minute), CSA certification to IEC 62368-1 (reinforced insulation), and VDE 60747-17 (basic insulation). These approvals validate its suitability for industrial equipment, medical auxiliary power, and EV charging infrastructure meeting 2 MOPP or reinforced insulation requirements.
Is SI8232AC-D-IS1R pin-compatible with other Si823x family members?
No, SI8232AC-D-IS1R is not pin-compatible with high-side/low-side variants like SI8230 or SI8233, due to differing internal logic and pin assignments (e.g., no DT or PWM pins). However, it shares identical SOIC-16 narrow-body mechanical dimensions and pad layout with SI8232BD-D-IS1R and SI8232AB-D-IS1R-allowing drop-in replacement within the dual-driver subfamily when isolation or UVLO specs align.
SI8232AC-D-IS1R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- 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, UR, VDE
SI8232AC-D-IS1R FAQ
1.How can I place an order for SI8232AC-D-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232AC-D-IS1R 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 SI8232AC-D-IS1R reliable?
The price and inventory of SI8232AC-D-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8232AC-D-IS1R is usually 5 days.
3.What payment methods are accepted for SI8232AC-D-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232AC-D-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232AC-D-IS1R?
SI8232AC-D-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232AC-D-IS1R 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 SI8232AC-D-IS1R?
For technical support, including SI8232AC-D-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232AC-D-IS1R requirements.
6.How does Aetrix verify that SI8232AC-D-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8232AC-D-IS1R 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 SI8232AC-D-IS1R meets industry standards.
7.What is the process for return or replacement of SI8232AC-D-IS1R?
All SI8232AC-D-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8232AC-D-IS1R, 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 SI8232AC-D-IS1R part is unused and in its original packaging.
Return procedure for SI8232AC-D-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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