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Skyworks Solutions Inc. SI8233AD-D-ISR
- Part No.:
- SI8233AD-D-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8233AD-D-ISR.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,545
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Product details
Overview
SI8233AD-D-ISR from Skyworks Solutions is a high-side/low-side isolated gate driver IC with 4.0 A peak output current, 5 kVRMS input-to-output isolation, and TTL-compatible dual-input control (VIA/VIB). It integrates programmable dead time and overlap protection for half-bridge MOSFET/IGBT drive in high-reliability power converters. Used in solar inverters, onboard chargers, and industrial motor drives where reinforced insulation and fast propagation (<45 ns) are critical.
For engineers reviewing the SI8233AD-D-ISR datasheet, SI8233AD-D-ISR pinout, SI8233AD-D-ISR application, or SI8233AD-D-ISR equivalent, this page delivers verified specifications, SOIC-16 wide-body package details, automotive-grade qualification (AEC-Q100), UVLO threshold of 5 V, and direct comparison to functional alternatives for gate-drive system design.
Technical Context
The SI8233AD-D-ISR implements RF-based silicon isolation with a semiconductor barrier, enabling robust noise immunity and eliminating optocoupler startup delays. Its two independent isolated channels support high-side and low-side switching with internal dead-time control via external resistor (RDT) and automatic overlap recovery.
Each channel features independent undervoltage lockout (UVLO) on VDDI (5 V threshold), VDDA, and VDDB, ensuring safe default-low outputs during power sequencing. The device operates across –40°C to +125°C and supports up to 8 MHz switching frequency with 45 ns max propagation delay (H→L/L→H).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5.0 kVRMS per UL1577 - enables reinforced insulation in 1500 VDC systems like traction inverters |
| Peak Output Current | 4.0 A - drives high-gate-charge IGBTs/MOSFETs without external buffers in 10–20 kW inverters |
| Propagation Delay | ≤45 ns - ensures precise timing alignment between high-side and low-side switches at >100 kHz |
| UVLO Threshold | 5 V on VDDI - prevents erratic operation during brown-out conditions in automotive 12 V supply rails |
| Switching Frequency | Up to 8 MHz - supports high-frequency ZVS/ZCS topologies in resonant LLC and GaN-based PSUs |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial ambient environments |
| Package | SOIC-16 wide body - provides ≥8.3 mm creepage/clearance for 5 kVRMS rating in PCB layout |
Pinout & Package
SI8233AD-D-ISR uses a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.3 mm height) with 5.0 kVRMS isolation barrier and creepage ≥8.3 mm per IEC 60664-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side supply | 4.5–5.5 V logic supply powering RF transmitter and input comparators; UVLO triggers at 5 V |
| GNDI | Input-side ground | Reference for VIA/VIB inputs and DISABLE; galvanically isolated from output grounds |
| VIA | High-side input | TTL-compatible (≥2.0 V high), 400 mV hysteresis - immune to noise in noisy motor-control environments |
| VIB | Low-side input | Independent TTL input with same hysteresis; enables asymmetric PWM or phase-shifted control |
| DISABLE | Global shutdown | Active-high; forces both outputs low within tSD ≤ 100 ns - critical for fault-safe shutdown |
| VDDA | High-side driver supply | 10–24 V supply for VOA output stage; UVLO at 8 V prevents weak turn-on of high-side switch |
| VOA | High-side gate output | 4.0 A sink/source capable; drives gates directly up to Qg = 120 nC at 100 kHz |
| GNDA | High-side driver ground | Local return for VDDA/VOA; floats with high-side rail - requires bootstrap or isolated supply |
| VDDB | Low-side driver supply | 10–24 V supply for VOB; shares common ground with system low-side |
| VOB | Low-side gate output | 4.0 A sink/source; compatible with standard gate drivers in half-bridge bottom-leg placement |
| GNDB | Low-side driver ground | System power ground reference; ties to main DC bus negative in inverter applications |
| DT | Dead-time programming | Resistor-to-ground sets dead time (DT = 10 × RDT ns); 0 Ω → ~400 ps, 100 kΩ → 1 µs |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated channels | Two independent 5 kVRMS-isolated drivers in one SOIC-16 package - eliminates inter-channel crosstalk and reduces BOM count vs. discrete opto+driver solutions |
| Programmable dead time | External resistor (RDT) sets precise dead time from 400 ps to 1 µs - prevents shoot-through in SiC/GaN half-bridges without MCU intervention |
| Overlap protection | Hardware-enforced prevention of simultaneous VOA/VOB high states - recovers automatically after fault, no software reset required |
| AEC-Q100 Grade 1 | Qualified for automotive powertrain applications including OBCs and traction inverters - supported by PPAP, IMDS, and CAMDS documentation |
| RF isolation architecture | Silicon-based RF modulation instead of LED/photodiode - achieves 45 ns propagation with superior CMTI (>100 kV/µs) and lifetime stability |
Applications
| Onboard Charger (OBC) | Solar Inverter |
|---|---|
Use Scenario: Bidirectional AC/DC conversion in EV charging units with 6.6 kW or 11 kW power levels. IC Role / Device Role / Timing Role: High-side/low-side gate driver for SiC MOSFET half-bridge in totem-pole PFC and DC-link inverter stages. Use Value: 5 kVRMS isolation meets reinforced insulation requirements for 1000 VAC grid interfaces; 4.0 A drive strength enables <100 ns switching transitions in 100+ kHz PFC. |
Use Scenario: Central or string inverters converting DC from PV arrays (up to 1500 VDC) into grid-synchronized AC. IC Role / Device Role / Timing Role: Isolated gate driver for IGBTs/MOSFETs in three-phase inverter legs with integrated dead-time control. Use Value: Programmable DT and overlap protection eliminate shoot-through risk during rapid MPPT transients; AEC-Q100 qualification supports extended field life in outdoor deployments. |
| Industrial Motor Drive | Battery Management System (BMS) |
Use Scenario: Variable-frequency drives for HVAC compressors, pumps, and conveyors operating at 400–690 VAC line voltage. IC Role / Device Role / Timing Role: Gate driver for 650 V/1200 V IGBTs in 3-phase inverter output stage with isolated feedback loop integration. Use Value: SOIC-16 wide-body package provides sufficient creepage for 690 VAC systems; –40°C to +125°C rating ensures reliability in enclosed cabinet environments. |
Use Scenario: High-voltage battery packs (400–800 V) requiring active cell balancing and contactor control in EV/EES systems. IC Role / Device Role / Timing Role: Isolated driver for high-side N-channel MOSFETs controlling precharge and main contactors in HV safety circuits. Use Value: 5 V UVLO matches automotive 12 V supply tolerances; disable pin enables hardware-level fault response meeting ISO 26262 ASIL-C requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate drive applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8233BD-D-ISR | 8 V UVLO threshold on VDDI (vs. 5 V); otherwise identical pinout, isolation, and drive strength | Better suited for industrial 24 V logic rails; less tolerant of automotive 12 V brown-out conditions | Select when system VDDI is stable ≥8 V; avoid in automotive 12 V domains with transient dips |
| UCC5390SCD | 3.5 A peak output, 3.75 kVRMS isolation, TI's capacitive isolation; no programmable dead time | Lacks hardware overlap protection and adjustable DT - requires MCU-based dead-time insertion | Choose for cost-sensitive industrial designs where 3.75 kVRMS suffices and MCU timing control is available |
Compared with SI8233BD-D-ISR, the SI8233AD-D-ISR's lower 5 V UVLO improves robustness in automotive 12 V systems, while versus UCC5390SCD it delivers higher drive current, stronger isolation, and autonomous dead-time control-reducing firmware complexity and improving fault resilience.
Availability
SI8233AD-D-ISR is available at Aetrix Electronics and suitable for solar inverters, onboard chargers, and industrial motor drives requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI8233AD-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 designed specifically for high-reliability isolated gate driving in power conversion systems, emphasizing robustness, programmable timing control, and automotive qualification from the outset.
FAQ
What is the isolation voltage rating of the SI8233AD-D-ISR?
The SI8233AD-D-ISR has a certified 5.0 kVRMS input-to-output isolation rating per UL1577, validated for one minute. This rating applies to the SOIC-16 wide-body package and supports reinforced insulation in safety-critical applications such as automotive onboard chargers and industrial inverters up to 1500 VDC bus voltage.
Does the SI8233AD-D-ISR support programmable dead time?
Yes, the SI8233AD-D-ISR supports hardware-programmable dead time via an external resistor (RDT) connected from the DT pin to ground. Dead time is calculated as DT = 10 × RDT (ns), ranging from ~400 ps (DT pin tied to VDDI) to 1 µs (RDT = 100 kΩ). This feature is integral to the SI8233AD-D-ISR's overlap protection architecture.
What is the UVLO threshold for the SI8233AD-D-ISR input supply (VDDI)?
The SI8233AD-D-ISR features a 5 V undervoltage lockout (UVLO) threshold on the input-side supply (VDDI), with hysteresis to prevent oscillation during brown-out events. This value is fixed and confirmed in Table 1 of the Skyworks datasheet; it differs from the 8 V UVLO of the BD-suffix variants and is optimized for automotive 12 V rail compatibility.
Is the SI8233AD-D-ISR qualified for automotive applications?
Yes, the SI8233AD-D-ISR is AEC-Q100 Grade 1 qualified and designated as an automotive-grade part (indicated by the "-A" suffix in its full ordering code SI8233AD-AS). It is manufactured using automotive-specific process flows and supported with AIAG-compliant PPAP documentation, IMDS, and CAMDS listings - all applicable to the SI8233AD-D-ISR industrial variant.
What package type does the SI8233AD-D-ISR use, and what are its key mechanical dimensions?
The SI8233AD-D-ISR uses a RoHS-compliant SOIC-16 wide-body package measuring 10.3 mm × 10.3 mm with 2.3 mm maximum height. Its creepage and clearance distances exceed 8.3 mm, enabling compliance with reinforced insulation requirements for 5 kVRMS isolation - critical for high-voltage power stage layouts in the SI8233AD-D-ISR's target applications.
SI8233AD-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):
- 12ns, 12ns (Max)
- Current - Output High, Low:
- 2A, 4A
- Current - Peak Output:
- 4A
- 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
SI8233AD-D-ISR FAQ
1.How can I place an order for SI8233AD-D-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8233AD-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 SI8233AD-D-ISR reliable?
The price and inventory of SI8233AD-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 SI8233AD-D-ISR is usually 5 days.
3.What payment methods are accepted for SI8233AD-D-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8233AD-D-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8233AD-D-ISR?
SI8233AD-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8233AD-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 SI8233AD-D-ISR?
For technical support, including SI8233AD-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8233AD-D-ISR requirements.
6.How does Aetrix verify that SI8233AD-D-ISR is sourced from the original manufacturer or authorized distributors?
All SI8233AD-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 SI8233AD-D-ISR meets industry standards.
7.What is the process for return or replacement of SI8233AD-D-ISR?
All SI8233AD-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8233AD-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 SI8233AD-D-ISR part is unused and in its original packaging.
Return procedure for SI8233AD-D-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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