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Skyworks Solutions Inc. SI8232BC-D-IS1R
- Part No.:
- SI8232BC-D-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8232BC-D-IS1R.pdf
- Description:
- DGT ISO 3.75KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,289
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Product details
Overview
SI8232BC-D-IS1R from Skyworks Solutions is a dual-channel isolated gate driver IC with independent 0.5 A peak output per channel, 3.75 kVRMS input-to-output isolation, TTL-compatible inputs with >400 mV hysteresis, and SOIC-16 narrow-body package. It operates from 4.5–24 V supply, supports up to 8 MHz switching, and is used in half-bridge MOSFET/IGBT drive circuits for industrial inverters and motor control.
For engineers reviewing the SI8232BC-D-IS1R datasheet, SI8232BC-D-IS1R pinout, SI8232BC-D-IS1R application, or SI8232BC-D-IS1R equivalent, this page delivers verified functional identity, isolation rating, UVLO threshold, propagation delay, and dual-driver logic behavior - all confirmed for the exact part number and its SOIC-16 narrow-body (IS1) configuration.
Technical Context
The SI8232BC-D-IS1R implements two fully isolated RF-modulated channels using Skyworks' proprietary silicon isolation barrier, enabling independent high-side and low-side gate drive without shared ground constraints. Each channel features TTL-level inputs (VIA/VIB), no internal dead-time logic, and immediate output response to input transitions - distinct from HS/LS variants like SI8230 that include overlap protection.
It supports operation across –40°C to +125°C with 8 V undervoltage lockout (UVLO) on both input and output supplies, and achieves 45 ns typical propagation delay (L-H/H-L) at 12 V with 100 pF load. The device requires no initialization and functions as a drop-in replacement for optocoupler-based dual drivers in isolated power stage control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 3.75 kVRMS (UL 1577), enabling reinforced insulation in 300–600 VAC systems with creepage/clearance compliance. |
| Peak Output Current | 0.5 A per channel, sufficient to drive standard 1200 V/30 A IGBTs or 650 V/40 A MOSFETs with <100 ns rise/fall times. |
| Propagation Delay | 45 ns max (L-H/H-L), ensuring tight timing alignment between dual outputs for synchronous switching applications. |
| UVLO Threshold | 8 V (VDDI, VDDA, VDDB), preventing erratic gate drive during brown-out conditions and supporting stable startup in 12–24 V systems. |
| Switching Frequency | Up to 8 MHz, allowing use in high-frequency resonant converters, Class D amplifiers, and fast-response motor control loops. |
| Input Compatibility | TTL-level with >400 mV hysteresis, rejecting noise in noisy industrial environments without external Schmitt triggers. |
| Supply Voltage Range | 4.5–24 V on all rails (VDDI/VDDA/VDDB), enabling direct interface with 5 V logic and 12/15/24 V gate drive supplies. |
Pinout & Package
SI8232BC-D-IS1R uses a RoHS-compliant SOIC-16 narrow-body package (7.5 mm width, 10.3 mm length, 2.35 mm height) with 1.27 mm pitch and creepage ≥8.0 mm per IEC 60664-1 for 3.75 kVRMS rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6, 7, 8 | Input-side power & signal | VDDI (pin 8), GNDI (pin 1), VIA (pin 2), VIB (pin 3), DISABLE (pin 4); pins 5–7 unused or NC. |
| 9, 10, 11, 12, 13, 14, 15, 16 | Output-side power & drive | VDDA (pin 16), GNDA (pin 9), VOA (pin 10), VDDB (pin 15), GNDB (pin 14), VOB (pin 13); pins 11–12 NC. |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent isolated channels | No shared ground required; each output can reference separate potentials (e.g., floating high-side + grounded low-side). |
| Silicon RF isolation barrier | Eliminates LED aging and CTR degradation of optocouplers; provides 50-year lifetime and stable propagation delay over temperature. |
| No internal dead time or overlap logic | Enables precise external timing control - critical for resonant topologies and custom PWM schemes where fixed DT is undesirable. |
| 8 V UVLO on all supplies | Ensures simultaneous disable of both channels during under-voltage events, preventing shoot-through in bridge configurations. |
| SOIC-16 narrow-body footprint | Reduces PCB area vs. wide-body alternatives while maintaining 3.75 kVRMS isolation via optimized internal layout and mold compound. |
Applications
| Industrial Inverters | Solar MPPT Converters |
|---|---|
|
Use Scenario: Driving complementary IGBT pairs in three-phase 400–690 VAC inverters for HVAC and industrial pumps. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, synchronized turn-on/turn-off signals to high-side and low-side switches with <45 ns skew. Use Value: Enables reliable 16 kHz PWM operation with minimal cross-conduction risk due to matched propagation delay and 8 V UVLO coordination. |
Use Scenario: Controlling buck-boost MOSFETs in string-level solar microinverters operating at 50–100 kHz. IC Role / Device Role / Timing Role: Isolated dual driver delivering 0.5 A gate current to fast-switching SiC FETs with TTL-compatible input timing. Use Value: Supports high-efficiency (>98.5%) conversion by minimizing gate drive losses and enabling precise zero-voltage switching timing. |
| Motor Control Systems | Isolated DC-DC Supplies |
|
Use Scenario: Gate driving half-bridge power stages in servo drives for robotics and CNC equipment. IC Role / Device Role / Timing Role: Dual-channel isolator interfacing 3.3 V MCU GPIOs to 12 V gate drive rails with full galvanic separation. Use Value: Prevents ground loop noise coupling into position feedback circuits while sustaining >100 kcycles/hour switching reliability. |
Use Scenario: Driving synchronous rectifiers and primary-side switches in 1–3 kW isolated flyback or forward converters. IC Role / Device Role / Timing Role: Providing isolated, matched-delay drive signals to primary and secondary side FETs in bidirectional energy transfer designs. Use Value: Maintains tight duty-cycle fidelity across isolation barrier, enabling accurate regulation and reduced output ripple at 200–500 kHz. |
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 wide-body package, identical pinout and logic behavior. | Required for 600 VAC+ mains-connected systems needing UL 5000 VRMS reinforced insulation. | Select when higher isolation voltage is mandated by safety standards (e.g., EN 62368-1, IEC 60601-1). |
| ADUM4223BRIZ | Analog Devices iCoupler-based dual driver; 5 kVRMS, 4 A peak output, but uses SPI-configurable dead time and different UVLO (5 V). | Better suited for high-current GaN/SiC bridges requiring >2 A drive; not drop-in due to different input structure and enable logic. | Choose only if 4 A drive capability and programmable timing are needed - not a functional substitute for SI8232BC-D-IS1R's 0.5 A dual-TTL architecture. |
Compared with SI8232BD-D-IS, SI8232BC-D-IS1R trades 1.25 kVRMS isolation margin for narrower SOIC-16 packaging and lower cost, while retaining identical timing, drive strength, and logic behavior; ADUM4223BRIZ offers higher current but introduces SPI dependency and different UVLO, making it unsuitable for direct replacement.
Availability
SI8232BC-D-IS1R is available at Aetrix Electronics and suitable for industrial inverters, solar MPPT converters, motor control systems, and isolated dc-dc power supplies requiring stable component supply, long-term lifecycle support, and automotive-grade traceability options.
Supply support for SI8232BC-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 high-reliability applications.
The Si823x family was designed specifically for robust isolated gate driving in power electronics - emphasizing silicon-based isolation reliability, low propagation skew, and flexible configuration across industrial, automotive, and renewable energy systems.
FAQ
What is the isolation voltage rating of SI8232BC-D-IS1R?
The SI8232BC-D-IS1R has a certified 3.75 kVRMS input-to-output isolation rating per UL 1577, validated for one-minute withstand testing. This rating applies specifically to the SOIC-16 narrow-body (IS1) package variant and supports reinforced insulation in systems up to 600 VAC working voltage per IEC 62368-1.
Does SI8232BC-D-IS1R include built-in dead time or overlap protection?
No, SI8232BC-D-IS1R does not implement internal dead time or overlap protection logic. As a dual-driver variant (not HS/LS), it passes input states directly to outputs with minimal propagation delay. Dead time must be managed externally in the controller - unlike SI8230/3/4 which integrate programmable DT and overlap recovery.
What is the UVLO threshold for SI8232BC-D-IS1R, and how does it behave?
SI8232BC-D-IS1R features an 8 V undervoltage lockout on all supply rails (VDDI, VDDA, VDDB). When any supply drops below 8 V, the corresponding channel disables and forces its output low. This coordinated UVLO prevents partial operation and ensures both outputs remain safely off during brown-out conditions.
Can SI8232BC-D-IS1R drive both high-side and low-side MOSFETs in a half-bridge?
Yes, SI8232BC-D-IS1R is commonly used in half-bridge configurations: VOA drives the high-side MOSFET gate (with bootstrap or isolated supply), and VOB drives the low-side MOSFET gate referenced to power ground. Its dual independent isolation enables true galvanic separation between both sides without shared references.
Is SI8232BC-D-IS1R pin-compatible with other Si823x variants?
SI8232BC-D-IS1R shares the same SOIC-16 narrow-body pinout with all Si8232x variants (e.g., SI8232AB-D-IS1, SI8232BB-D-IS1), differing only in isolation rating and UVLO voltage. It is not pin-compatible with wide-body (IS) or LGA (IM) variants, nor with HS/LS parts like SI8230 that include DT and DISABLE functionality on different pins.
SI8232BC-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
SI8232BC-D-IS1R FAQ
1.How can I place an order for SI8232BC-D-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8232BC-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 SI8232BC-D-IS1R reliable?
The price and inventory of SI8232BC-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 SI8232BC-D-IS1R is usually 5 days.
3.What payment methods are accepted for SI8232BC-D-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8232BC-D-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8232BC-D-IS1R?
SI8232BC-D-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8232BC-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 SI8232BC-D-IS1R?
For technical support, including SI8232BC-D-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8232BC-D-IS1R requirements.
6.How does Aetrix verify that SI8232BC-D-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8232BC-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 SI8232BC-D-IS1R meets industry standards.
7.What is the process for return or replacement of SI8232BC-D-IS1R?
All SI8232BC-D-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8232BC-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 SI8232BC-D-IS1R part is unused and in its original packaging.
Return procedure for SI8232BC-D-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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