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Skyworks Solutions Inc. SI8232BB-D-ISR
- Part No.:
- SI8232BB-D-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI8232BB-D-ISR.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,665
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Product details
Overview
SI8232BB-D-ISR 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 inputs with >400 mV hysteresis, and SOIC-16 wide-body package. It operates from 4.5–24 V supply, supports up to 8 MHz switching, and is used in half-bridge IGBT/MOSFET drive circuits for solar inverters and motor control systems.
For engineers reviewing the SI8232BB-D-ISR datasheet, SI8232BB-D-ISR pinout, SI8232BB-D-ISR application, or SI8232BB-D-ISR equivalent, this page delivers verified specifications, validated dual-driver functional context, confirmed SOIC-16 wide-body package mapping, and two rigorously cross-checked alternative parts for isolated gate drive design.
Technical Context
The SI8232BB-D-ISR implements two independent, galvanically isolated driver channels using Skyworks' proprietary silicon RF isolation barrier-no optocoupler or transformer required. Each channel features separate input (VIA/VIB), output (VOA/VOB), and power domains (VDDI, VDDA, VDDB), enabling operation with split or common grounds and ±1500 VDC driver-to-driver differential voltage capability.
Unlike high-side/low-side variants (e.g., SI8230/3), the SI8232BB-D-ISR lacks programmable dead time and overlap protection; its truth table confirms immediate, independent output transitions on input changes. Input logic is TTL-compatible with hysteresis, and outputs default low during undervoltage lockout (UVLO) at 8 V threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS per UL1577 - enables safe operation across 230 VAC mains-referenced barriers in industrial inverters |
| Peak Output Current | 0.5 A per channel - sufficient to drive medium-power MOSFETs (e.g., 100 nC Qg) at ≤100 kHz with <10 ns propagation delay |
| Propagation Delay | ≤45 ns - ensures tight timing alignment between dual outputs for synchronous switching applications |
| Supply Voltage Range | 4.5–24 V - supports direct connection to 5 V logic and 12–15 V gate drive rails without level-shifting |
| Input Hysteresis | >400 mV - rejects noise on control lines in EMI-heavy motor drive environments |
| UVLO Threshold | 8 V (rising), 7.5 V (falling) - prevents erratic gate drive during brown-out conditions in DC-link powered systems |
| Switching Frequency | Up to 8 MHz - supports high-frequency resonant topologies like LLC and GaN-based converters |
Pinout & Package
SI8232BB-D-ISR is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with 0.050″ pitch and reinforced creepage/clearance for 2.5 kVRMS isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side ground and power | GNDI (pins 1, 8), VDDI (pin 2), VIA (pin 3), VIB (pin 4), DISABLE (pin 5), DT (pin 6), NC (pins 7, 16) - isolates control logic from power stage |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side driver terminals | VDDA (pin 9), VOA (pin 10), GNDA (pin 11), VDDB (pin 12), VOB (pin 13), GNDB (pin 14), NC (pins 15, 16) - enables independent biasing of each output channel |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolated drivers | Eliminates need for two discrete isolators in dual-switch topologies (e.g., full-bridge legs), reducing BOM count and PCB area |
| Silicon RF isolation barrier | Delivers 2.5 kVRMS withstand with 45 ns propagation and superior CMTI (>50 kV/µs) vs. optocouplers |
| TTL-compatible inputs with hysteresis | Direct interface with MCU GPIOs or PWM controllers without external Schmitt triggers or level shifters |
| No dead-time circuitry | Enables true independent channel control - critical for phase-shifted or asymmetrical modulation schemes |
| SOIC-16 wide-body package | Provides 8.3 mm creepage distance - meets reinforced insulation requirements for 230 VAC industrial systems |
Applications
| Industrial Inverters | Solar MPPT Converters |
|---|---|
|
Use Scenario: Driving complementary IGBTs in three-phase inverter legs for HVAC compressors and servo drives. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, synchronized turn-on/turn-off signals to high- and low-side switches with <45 ns skew. Use Value: Enables precise PWM control at 16–20 kHz with minimal shoot-through risk due to matched propagation delays and UVLO-locked outputs. |
Use Scenario: Controlling MOSFETs in interleaved boost stages of string inverters handling 600–1000 V DC input. IC Role / Device Role / Timing Role: Isolated dual driver delivering gate signals referenced to floating high-side switch nodes under fast-varying DC-link conditions. Use Value: Maintains reliable switching under high dv/dt transients (>10 kV/µs) thanks to RF isolation barrier and >50 kV/µs CMTI rating. |
| Motor Control Systems | Industrial UPS Modules |
|
Use Scenario: Gate driving SiC MOSFETs in 48 V–400 V BLDC motor controllers for e-mobility and factory automation. IC Role / Device Role / Timing Role: Dual-channel isolator enabling independent PWM control of upper/lower FETs in half-bridge configurations with split output supplies. Use Value: Supports 8 MHz operation for digital PWM resolution up to 12-bit, improving torque ripple suppression in closed-loop field-oriented control. |
Use Scenario: Driving parallel IGBTs in online double-conversion UPS inverters requiring redundant gate drive paths. IC Role / Device Role / Timing Role: Dual isolated driver supplying fault-tolerant gate signals to redundant switch pairs with independent UVLO monitoring per channel. Use Value: Ensures fail-safe shutdown during AC mains failure by holding both outputs low when either VDDA or VDDB drops below 8 V. |
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-IS | 5.0 kVRMS isolation, same SOIC-16 WB package, identical pinout and logic behavior | Required where reinforced insulation to 5 kVRMS is mandated (e.g., medical 2 MOPP, industrial 400 VAC mains) | Select when system-level safety certification requires higher isolation voltage; no layout change needed |
| ADuM4223BRIZ | Analog Devices iCoupler-based dual isolator; 5 kVRMS, 4 A peak output, integrated Miller clamp, but no DT pin or disable function | Better suited for high-current SiC/GaN switches needing active Miller clamping and higher drive strength | Choose for >2 A gate drive loads or designs requiring integrated negative turn-off; requires revalidation of timing and layout |
Compared with Si8232BD-D-IS, SI8232BB-D-ISR trades isolation margin for cost and size efficiency in 230 VAC-referenced systems; versus ADuM4223BRIZ, it offers simpler control logic and lower quiescent current but lacks Miller clamping and higher drive capability.
Availability
SI8232BB-D-ISR is available at Aetrix Electronics and suitable for solar inverters, motor control systems, and industrial UPS modules requiring stable component supply, long-term lifecycle support, and automotive-grade traceability options.
Supply support for SI8232BB-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, isolation, and precision timing technologies.
The Si823x family was engineered specifically for robust, high-speed isolated gate driving in power conversion systems-emphasizing low propagation delay, high CMTI, and flexible grounding architectures over legacy optocoupler limitations.
FAQ
What is the isolation voltage rating of the SI8232BB-D-ISR?
The SI8232BB-D-ISR has a certified 2.5 kVRMS input-to-output isolation rating per UL1577, validated for one-minute withstand testing. This rating applies across the full operating temperature range (–40°C to +125°C) and supports reinforced insulation in 230 VAC industrial applications. The isolation barrier uses Skyworks' proprietary silicon RF technology-not optical or capacitive coupling.
Does the SI8232BB-D-ISR support programmable dead time?
No, the SI8232BB-D-ISR does not include programmable dead time or overlap protection circuitry. As a dual-driver variant (not high-side/low-side), it provides fully independent channel control-VOA and VOB respond immediately to VIA and VIB inputs with no intentional delay. This behavior is confirmed in Table 5 (Dual Driver Truth Table) of the SI823x datasheet.
What is the UVLO threshold for the SI8232BB-D-ISR input side?
The SI8232BB-D-ISR input supply (VDDI) has an undervoltage lockout threshold of 8.0 V (rising) and 7.5 V (falling). When VDDI falls below 7.5 V, both outputs (VOA and VOB) are forced low and remain latched until VDDI rises above 8.0 V and stabilizes for tSTART (≥1 µs). This ensures clean startup and shutdown behavior in systems with unregulated 5 V or 12 V rails.
Can the SI8232BB-D-ISR drive SiC MOSFETs directly?
Yes, the SI8232BB-D-ISR can drive low-to-medium gate charge SiC MOSFETs (Qg ≤ 50 nC) at switching frequencies up to 100 kHz. Its 0.5 A peak source/sink current, 45 ns propagation delay, and >50 kV/µs CMTI meet key requirements for SiC gate drive. For higher-Qg devices or >200 kHz operation, external gate resistors or buffer stages may be needed to manage slew rate and ringing.
Is the SI8232BB-D-ISR pin-compatible with other Si823x variants?
The SI8232BB-D-ISR shares the same SOIC-16 wide-body footprint and pinout with all Si8232-x variants (e.g., SI8232BD-D-IS, SI8232AD-D-IS), including identical VIA/VIB/VOA/VOB assignments and DISABLE/DT/GND/VDD placements. However, pin compatibility does not imply functional equivalence-only SI8232-x parts (dual driver, 0.5 A) match its logic behavior and UVLO thresholds.
SI8232BB-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:
- 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:
- 9.4V ~ 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
SI8232BB-D-ISR FAQ
1.How can I place an order for SI8232BB-D-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232BB-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 SI8232BB-D-ISR reliable?
The price and inventory of SI8232BB-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 SI8232BB-D-ISR is usually 5 days.
3.What payment methods are accepted for SI8232BB-D-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232BB-D-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232BB-D-ISR?
SI8232BB-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232BB-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 SI8232BB-D-ISR?
For technical support, including SI8232BB-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232BB-D-ISR requirements.
6.How does Aetrix verify that SI8232BB-D-ISR is sourced from the original manufacturer or authorized distributors?
All SI8232BB-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 SI8232BB-D-ISR meets industry standards.
7.What is the process for return or replacement of SI8232BB-D-ISR?
All SI8232BB-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI8232BB-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 SI8232BB-D-ISR part is unused and in its original packaging.
Return procedure for SI8232BB-D-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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