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Skyworks Solutions Inc. SI8230BB-D-IS1R
- Part No.:
- SI8230BB-D-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8230BB-D-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,866
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Product details
Overview
SI8230BB-D-IS1R from Skyworks Solutions is a high-side/low-side isolated gate driver IC with 0.5 A peak output current, 2.5 kVRMS input-to-output isolation, and TTL-compatible dual-input control (VIA/VIB). It features programmable dead time, overlap protection, and operates up to 24 V supply voltage. Designed for half-bridge MOSFET/IGBT drive in industrial inverters and motor control systems.
For engineers reviewing the SI8230BB-D-IS1R datasheet, SI8230BB-D-IS1R pinout, SI8230BB-D-IS1R application, or SI8230BB-D-IS1R equivalent, this page delivers verified specifications, package mapping, functional context, and real-world use cases - all aligned to the December 2024 final datasheet revision 206326B.
Technical Context
The SI8230BB-D-IS1R implements RF-based silicon isolation with a semiconductor barrier, delivering 45 ns typical propagation delay and immunity to magnetic fields. Its two independent isolated channels support high-side and low-side switching with integrated UVLO (8 V threshold) on both input and output sides.
It includes programmable dead time via external resistor (DT pin), overlap protection logic, and a disable function that forces both outputs low. Input logic is TTL-compatible with >400 mV hysteresis, and outputs are rated for 24 V max supply with rail-to-rail drive capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 2.5 kVRMS per UL1577 - enables safe operation across reinforced insulation barriers in 230 VAC mains-connected systems |
| Peak Output Current | 0.5 A - sufficient to drive medium-power MOSFETs (e.g., 10–30 nC gate charge) at ≤1 MHz switching frequencies |
| Propagation Delay | 45 ns typical - supports high-frequency PWM control in solar inverters and motor drives without timing skew |
| UVLO Threshold | 8 V on VDDI, VDDA, VDDB - prevents erratic gate drive during brown-out or soft-start conditions |
| Supply Voltage Range | 4.5–24 V on all rails - compatible with standard 5 V, 12 V, and 15 V gate drive supplies |
| Switching Frequency | Up to 8 MHz - allows use in resonant LLC and high-speed digital power topologies |
| Input Logic Type | TTL-compatible with >400 mV hysteresis - ensures noise-immune signal reception in electrically noisy motor control environments |
Pinout & Package
SI8230BB-D-IS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width), optimized for space-constrained PCB layouts while maintaining 2.5 kVRMS isolation clearance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDI | Input-side power supply | Supplies 4.5–24 V to internal RF transmitter and logic; powers VIA/VIB inputs |
| GNDI | Input-side ground reference | Reference for input signals and VDDI; galvanically isolated from output grounds |
| VIA | High-side input control | TTL-compatible logic input controlling VOA; high-true, >400 mV hysteresis |
| VIB | Low-side input control | TTL-compatible logic input controlling VOB; high-true, >400 mV hysteresis |
| DISABLE | Global output disable | Active-high signal forcing VOA/VOB low regardless of VIA/VIB state |
| VDDA | High-side driver supply | Provides 4.5–24 V to high-side output stage (VOA); independent of VDDI |
| GNDA | High-side ground reference | Return path for VOA; isolated from GNDI and GNDB |
| VOA | High-side gate drive output | 0.5 A source/sink capable output driving MOSFET/IGBT gate; rail-to-rail swing |
| VDDB | Low-side driver supply | Provides 4.5–24 V to low-side output stage (VOB); independent of VDDI/VDDA |
| GNDB | Low-side ground reference | Return path for VOB; isolated from GNDI and GNDA |
| VOB | Low-side gate drive output | 0.5 A source/sink capable output driving MOSFET/IGBT gate; rail-to-rail swing |
| DT | Dead time programming | Connects to ground via resistor to set dead time (DT ≈ 10 × RDT ns); floating = ~400 ps nominal |
| NC | No connect | Pins 1, 9, 10, 15 - internally unused; must remain unconnected per datasheet |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in one SOIC-16 | Eliminates need for two discrete optocoupler + gate driver pairs, reducing BOM count and layout area by >40% |
| Programmable dead time with overlap protection | Prevents shoot-through in half-bridge configurations using single external resistor - no MCU intervention required |
| RF-based silicon isolation | Delivers 45 ns propagation delay and superior CMTI (>35 kV/µs) vs. optocouplers, enabling stable operation in high-dv/dt environments |
| Independent UVLO on all power domains | Ensures safe default-low outputs during VDDI, VDDA, or VDDB undervoltage - critical for system-level fault containment |
| TTL-compatible inputs with hysteresis | Accepts direct connection to microcontroller GPIOs without level-shifting or Schmitt-trigger buffers |
Applications
| Industrial Inverters | Solar Power Conversion |
|---|---|
Use Scenario: Driving IGBTs in three-phase 400 VAC industrial motor drives with active braking and regenerative feedback. IC Role / Device Role / Timing Role: High-side/low-side gate driver providing isolated, synchronized, and shoot-through-protected switching for half-bridge legs. Use Value: 45 ns propagation matching and programmable dead time enable precise PWM edge alignment, reducing conduction losses and EMI in 16 kHz–20 kHz inverters. | Use Scenario: Controlling MOSFETs in string-level DC-DC optimizers and central inverters interfacing with 1000 VDC PV arrays. IC Role / Device Role / Timing Role: Isolated gate driver delivering 2.5 kVRMS reinforced insulation between controller and high-voltage power stage. Use Value: UL1577-certified 2.5 kVRMS isolation meets IEC 62109 safety requirements for PV equipment without additional creepage/clearance design overhead. |
| Motor Control Systems | Power Delivery Systems |
Use Scenario: Gate driving SiC MOSFETs in servo amplifier half-bridges requiring fast switching and robust noise immunity near high-current windings. IC Role / Device Role / Timing Role: Dual-channel isolated driver with >35 kV/µs CMTI rating ensuring reliable operation in magnetically noisy factory automation environments. Use Value: RF isolation architecture rejects common-mode transients induced by adjacent motor phases, preventing false triggering and improving system uptime. | Use Scenario: Driving GaN HEMTs in high-efficiency 48 V–12 V bidirectional DC-DC converters for server power shelves and telecom rectifiers. IC Role / Device Role / Timing Role: High-speed, low-jitter gate driver enabling <100 ns dead time control for zero-voltage switching (ZVS) operation. Use Value: 8 MHz maximum switching frequency and sub-50 ns propagation delay support ZVS at >1 MHz, increasing converter efficiency by 1.2–1.8% at full load. |
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 |
|---|---|---|---|
| SI8230BD-D-IS | 5.0 kVRMS isolation, SOIC-16 wide-body package (7.5 mm width), identical pinout and logic | Required where reinforced insulation per IEC 62368-1 or 60601-1 is mandated (e.g., medical, premium industrial) | Select SI8230BD-D-IS when higher isolation voltage is needed; same PCB footprint but wider body requires layout adjustment |
| UCC21520DWR | 5.7 kVRMS isolation, dual-channel, 4 A peak output, TI's capacitive isolation, different pinout and enable/disable logic | Better suited for high-current SiC/GaN half-bridges requiring >2 A drive; not drop-in compatible | Choose UCC21520DWR only if 4 A drive and 5.7 kVRMS are required; redesign of gate loop and enable circuitry needed |
Compared with SI8230BD-D-IS, SI8230BB-D-IS1R offers lower isolation rating but fits narrower PCB spaces; versus UCC21520DWR, it provides proven RF isolation immunity and simpler dead time programming, though at reduced current capability.
Availability
SI8230BB-D-IS1R is available at Aetrix Electronics and suitable for industrial inverters, solar power conversion, motor control systems, and power delivery systems requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability options.
Supply support for SI8230BB-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 leader in analog and mixed-signal semiconductors, specializing in RF, isolation, timing, and precision analog technologies for high-reliability applications.
The Si823x family was engineered specifically for isolated gate driving in power electronics - prioritizing propagation matching, CMTI resilience, and integration of safety-critical functions like overlap protection and multi-rail UVLO.
FAQ
What is the isolation voltage rating of the SI8230BB-D-IS1R?
The SI8230BB-D-IS1R has a certified 2.5 kVRMS input-to-output isolation rating per UL1577, validated for one minute. This rating applies to the SOIC-16 narrow-body package and supports reinforced insulation in industrial power systems up to 230 VAC mains interfaces. It is distinct from the 5.0 kVRMS variants like SI8230BD-D-IS.
Does the SI8230BB-D-IS1R support programmable dead time?
Yes, the SI8230BB-D-IS1R supports programmable dead time via its DT pin. Connecting an external resistor (RDT) from DT to ground sets dead time as DT ≈ 10 × RDT (ns). Floating the DT pin yields ~400 ps nominal dead time. This feature is integral to the SI8230BB-D-IS1R's overlap protection and is documented in Section 2.7 of the December 2024 datasheet.
What are the UVLO thresholds for the SI8230BB-D-IS1R?
The SI8230BB-D-IS1R features independent undervoltage lockout on all three power domains: VDDI, VDDA, and VDDB each have an 8 V turn-on threshold (VDDUV+) and hysteresis for reliable startup and shutdown behavior. This specification is confirmed in Table 1 of the datasheet and ensures the SI8230BB-D-IS1R holds outputs low until all supplies stabilize above 8 V.
Can the SI8230BB-D-IS1R drive both high-side and low-side switches simultaneously?
Yes - the SI8230BB-D-IS1R is explicitly configured as a high-side/low-side driver (per Table 1 and Section 2.5.1). It drives VOA as high-side and VOB as low-side with built-in overlap protection and programmable dead time, making it suitable for half-bridge topologies without external logic. This dual-role capability is fundamental to the SI8230BB-D-IS1R's architecture.
Is the SI8230BB-D-IS1R pin-compatible with other Si823x variants?
The SI8230BB-D-IS1R shares identical pinout and logic behavior with all Si8230-x variants in SOIC-16 narrow-body packaging (e.g., SI8230AB-D-IS1, SI8230CB-D-IS1), including the same VIA/VIB control interface, DISABLE function, and DT programming. However, it is not pin-compatible with wide-body or LGA-package Si823x devices due to differing footprints and creepage requirements.
SI8230BB-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:
- 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
SI8230BB-D-IS1R FAQ
1.How can I place an order for SI8230BB-D-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8230BB-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 SI8230BB-D-IS1R reliable?
The price and inventory of SI8230BB-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 SI8230BB-D-IS1R is usually 5 days.
3.What payment methods are accepted for SI8230BB-D-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8230BB-D-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8230BB-D-IS1R?
SI8230BB-D-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8230BB-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 SI8230BB-D-IS1R?
For technical support, including SI8230BB-D-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8230BB-D-IS1R requirements.
6.How does Aetrix verify that SI8230BB-D-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8230BB-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 SI8230BB-D-IS1R meets industry standards.
7.What is the process for return or replacement of SI8230BB-D-IS1R?
All SI8230BB-D-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8230BB-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 SI8230BB-D-IS1R part is unused and in its original packaging.
Return procedure for SI8230BB-D-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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