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Skyworks Solutions Inc. SI8232AD-D-ISR
- Part No.:
- SI8232AD-D-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8232AD-D-ISR.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,256
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Product details
Overview
SI8232AD-D-ISR from Skyworks Solutions is a dual-channel isolated gate driver IC with 5 kVRMS input-to-output isolation, 0.5 A peak output current per channel, TTL-compatible inputs (VIA/VIB), and 5 V undervoltage lockout (UVLO) threshold - designed for driving high-side and low-side MOSFETs/IGBTs in half-bridge power stages of industrial inverters and motor control systems.
For engineers reviewing the SI8232AD-D-ISR datasheet, SI8232AD-D-ISR pinout, SI8232AD-D-ISR application, or SI8232AD-D-ISR equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, application-specific use cases, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The SI8232AD-D-ISR implements two independent, galvanically isolated driver channels using Skyworks' proprietary silicon RF isolation barrier - enabling operation across separate ground domains without shared reference. Each channel features TTL-level inputs with >400 mV hysteresis and supports direct connection to microcontroller GPIOs or PWM controllers.
Unlike high-side/low-side variants (e.g., SI8230/3), the SI8232AD-D-ISR lacks internal dead-time control or overlap protection logic; its dual-driver architecture provides fully independent output control - making it suitable for synchronous rectification, dual-phase gate drive, or isolated signal transmission where timing coordination is externally managed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS per UL1577 - enables reinforced insulation in 400–690 VAC industrial systems and meets IEC 62368-1 safety requirements. |
| Peak Output Current | 0.5 A per channel - sufficient to drive MOSFETs with ≤10 nC gate charge at ≤1 MHz switching frequencies in motor drives and DC-DC converters. |
| Propagation Delay | ≤45 ns - ensures tight timing alignment between isolated channels for high-frequency PWM applications up to 8 MHz. |
| UVLO Threshold | 5 V (rising), 4.5 V (falling) - prevents erratic gate drive during brown-out conditions and ensures clean startup in 5 V logic-supplied systems. |
| Supply Voltage Range | VDDI: 4.5–5.5 V; VDDA/VDDB: 10–24 V - allows flexible biasing: logic side powered from MCU rail, power side from local DC bus. |
| Input Hysteresis | >400 mV - rejects noise on VIA/VIB lines in electrically noisy environments like variable-frequency drives and solar inverters. |
Pinout & Package
SI8232AD-D-ISR is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with creepage ≥8.3 mm and clearance ≥8.3 mm - certified for 5 kVRMS isolation and rated for –40°C to +125°C ambient operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side ground and supply | GNDI (pins 1, 8), VDDI (pin 2), VIA (pin 3), VIB (pin 4), DISABLE (pin 5), NC (pins 6–7) - isolates logic interface from power domain; DISABLE forces both outputs low when asserted high. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side driver terminals | VOA (pin 9), VDDA (pin 10), GNDA (pin 11), VOB (pin 12), VDDB (pin 13), GNDB (pin 14), NC (pins 15–16) - each channel has dedicated VDD/GND pair for independent floating biasing in half-bridge or dual-switch topologies. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolated drivers | Enables fully decoupled control of two switches - e.g., synchronous buck high-side + low-side, or dual-phase inverter legs - without cross-talk or shared timing constraints. |
| 5 kVRMS isolation rating | Meets reinforced insulation requirements for industrial mains-connected equipment (IEC 62368-1, UL 1577) and supports 1500 VDC system voltage applications. |
| TTL-compatible inputs with hysteresis | Direct interface with 3.3 V/5 V MCUs without level-shifting; >400 mV hysteresis suppresses EMI-induced false triggering in motor drive PCB layouts. |
| 0.5 A peak source/sink per channel | Drives standard power MOSFETs (e.g., SiHF10N60, IRF840) with gate charge ≤10 nC at 100 kHz–1 MHz, minimizing external gate resistor sizing. |
| SOIC-16 wide-body package | Provides 8.3 mm creepage/clearance - eliminates need for slotting or conformal coating in 400 VAC-rated designs; compatible with standard SMT reflow profiles (260 °C peak). |
Applications
| Industrial Motor Control | Solar Inverter Half-Bridge |
|---|---|
|
Use Scenario: Driving complementary N-channel MOSFETs in a 3-phase inverter stage for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, noise-immune control of high-side and low-side switches in each leg - eliminating shoot-through risk via external PWM timing. Use Value: 45 ns propagation delay matching ensures <100 ps skew between channels, preserving PWM fidelity at 20 kHz carrier frequency. |
Use Scenario: Controlling upper and lower switches in a single-phase string inverter H-bridge stage interfacing PV arrays to grid-tied AC output. IC Role / Device Role / Timing Role: Isolated dual driver delivering 5 kVRMS separation between DC-side control logic and AC-side transformerless inverter stage. Use Value: 5 V UVLO threshold aligns with standard 5 V MCU rails, preventing misfiring during grid voltage sags or PV string fluctuations. |
| Isolated DC-DC Converter | Plasma Display Driver |
|
Use Scenario: Gate-driving synchronous rectifiers in an isolated 48 V–12 V flyback or forward converter for telecom power supplies. IC Role / Device Role / Timing Role: Dual-channel isolation barrier enabling independent control of primary-side switch and secondary-side synchronous rectifier - no shared ground required. Use Value: SOIC-16 wide-body package satisfies IPC-2221 creepage requirements for 48 V input systems operating at 100 kHz+ switching frequencies. |
Use Scenario: Driving row/column electrode drivers in AC plasma display panels requiring precise, isolated high-voltage pulse generation. IC Role / Device Role / Timing Role: Dual isolated driver delivering synchronized, jitter-free gate pulses to sustain and address electrodes - immune to common-mode transients from plasma discharge events. Use Value: 0.5 A peak current supports fast turn-on of high-capacitance panel electrodes (≥1 nF load), achieving <50 ns edge rates under 100 pF load. |
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-ISR | Same dual-driver function but 8 V UVLO threshold and 24 V max VDDA/VDDB - higher UVLO improves noise margin in 12–24 V logic systems. | Preferred in 24 V industrial PLC I/O modules where input supply may dip below 5 V but remains above 8 V during brown-out. | Select Si8232BD-D-ISR when system VDDI is derived from a regulated 12 V rail stepped down to 8–10 V, not 5 V. |
| ADuM4223ARWZ | Analog Devices' dual-channel isolated driver with 4 A peak output, 35 kV/µs CMTI, and integrated Miller clamp - no UVLO hysteresis spec provided. | Better suited for high-power IGBTs in traction inverters where >2 A peak drive and ultra-high noise immunity are mandatory. | Choose ADuM4223ARWZ only when driving >20 nC gate charges or operating in automotive-grade EMI environments exceeding 10 kV/m. |
Compared with Si8232BD-D-ISR, SI8232AD-D-ISR offers tighter UVLO alignment with 5 V MCU systems and lower minimum VDDI, while ADuM4223ARWZ trades off simplicity and cost for higher drive strength and CMTI - making SI8232AD-D-ISR optimal for cost-sensitive, medium-power industrial inverters with standard 5 V logic interfaces.
Availability
SI8232AD-D-ISR is available at Aetrix Electronics and suitable for industrial motor control, solar inverter half-bridge stages, and isolated DC-DC converter designs requiring stable component supply, long-term lifecycle support, and automotive-grade traceability options.
Supply support for SI8232AD-D-ISR 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 engineered to replace optocoupler-based gate drivers with higher reliability, faster timing, and smaller footprint - targeting high-efficiency power conversion in industrial automation, renewable energy, and EV charging infrastructure.
FAQ
What is the maximum switching frequency supported by SI8232AD-D-ISR?
The SI8232AD-D-ISR supports up to 8 MHz switching frequency, enabled by its 45 ns maximum propagation delay and fast rise/fall times (<10 ns typical into 100 pF). This makes SI8232AD-D-ISR suitable for high-frequency resonant converters and digital power supplies where timing precision is critical.
Does SI8232AD-D-ISR include built-in dead-time control?
No, SI8232AD-D-ISR does not include programmable dead-time or overlap protection logic - unlike Si8230/3/4 variants. Its dual-driver architecture provides fully independent channel control, requiring external timing coordination (e.g., MCU-generated complementary PWM with dead time) for half-bridge applications.
Can SI8232AD-D-ISR drive both high-side and low-side N-channel MOSFETs in a half-bridge?
Yes, SI8232AD-D-ISR can drive both high-side and low-side N-channel MOSFETs: VOA controls the high-side switch (with bootstrap or isolated supply), VOB controls the low-side switch (ground-referenced). Its 5 kVRMS isolation and independent VDDA/VDDB pins enable true floating high-side biasing without level shifters.
What safety certifications apply to SI8232AD-D-ISR?
SI8232AD-D-ISR is UL 1577 recognized (5000 VRMS, 1 min), CSA certified to IEC 62368-1 (reinforced insulation), and VDE compliant to IEC 60747-17 (basic insulation). These approvals validate its use in Class I and Class II industrial equipment requiring double/reinforced insulation.
Is SI8232AD-D-ISR pin-compatible with other Si823x variants?
SI8232AD-D-ISR shares the same SOIC-16 wide-body pinout as all Si823x dual-driver variants (e.g., SI8232BD-D-ISR, SI8232AB-D-ISR), including identical VIA/VIB/VOA/VOB placement and DISABLE functionality - enabling drop-in replacement when UVLO and isolation rating requirements match.
SI8232AD-D-ISR 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:
- 5000Vrms
- 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
SI8232AD-D-ISR FAQ
1.How can I place an order for SI8232AD-D-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232AD-D-ISR 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 SI8232AD-D-ISR reliable?
The price and inventory of SI8232AD-D-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8232AD-D-ISR is usually 5 days.
3.What payment methods are accepted for SI8232AD-D-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232AD-D-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232AD-D-ISR?
SI8232AD-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232AD-D-ISR 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 SI8232AD-D-ISR?
For technical support, including SI8232AD-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232AD-D-ISR requirements.
6.How does Aetrix verify that SI8232AD-D-ISR is sourced from the original manufacturer or authorized distributors?
All SI8232AD-D-ISR 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 SI8232AD-D-ISR meets industry standards.
7.What is the process for return or replacement of SI8232AD-D-ISR?
All SI8232AD-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8232AD-D-ISR, 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 SI8232AD-D-ISR part is unused and in its original packaging.
Return procedure for SI8232AD-D-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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