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Skyworks Solutions Inc. SI8230AB-B-IS1R
- Part No.:
- SI8230AB-B-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI8230AB-B-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,657
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Product details
Overview
SI8230AB-B-IS1R from Silicon Labs is a high-side/low-side isolated gate driver IC with 0.5 A peak output current, 5 kVRMS input-to-output isolation (wide-body SOIC-16), 60 ns max propagation delay, and programmable dead time. It operates from –40 to +125 °C and supports motor control, solar inverters, and isolated DC-DC power supplies.
For engineers reviewing the SI8230AB-B-IS1R datasheet, SI8230AB-B-IS1R pinout, SI8230AB-B-IS1R application, or SI8230AB-B-IS1R equivalent, key selection criteria include its dual-channel isolation architecture, TTL-compatible inputs with 400 mV hysteresis, overlap protection logic, UVLO thresholds (4.0 V typ), and compliance with UL1577, VDE 0884-5, and IEC 60950-1 reinforced insulation standards.
Technical Context
The SI8230AB-B-IS1R implements RF-based on/off keying across a silicon isolation barrier-enabling robust noise immunity without optical degradation or startup initialization. Its two independent isolated channels support high-side/low-side MOSFET/IGBT drive with separate input (VIA/VIB) and output (VOA/VOB) ground domains.
It integrates programmable dead time via external resistor (RDT), overlap protection to prevent shoot-through, and undervoltage lockout on both input (VDDI) and driver (VDDA/VDDB) supplies. The device uses proprietary capacitive isolation with 1.4 pF input-output capacitance and >45 kV/µs common-mode transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Voltage | 5 kVRMS (1 min, UL1577); validated for reinforced insulation per IEC 60950-1 and VDE 0884-5 |
| Peak Output Current | 0.5 A sink / 0.25 A source per channel; sufficient for driving medium-power MOSFETs in <1 kW systems |
| Propagation Delay | ≤60 ns (max); enables stable operation up to 8 MHz switching frequency with tight timing control |
| Input Hysteresis | 400 mV minimum; ensures reliable noise rejection in industrial EMI environments |
| Operating Temperature | –40 °C to +125 °C ambient; qualified per AEC-Q100 Grade 1 for automotive-grade reliability |
| Common-Mode Transient Immunity | >45 kV/µs; maintains signal integrity during fast voltage transients in high-dv/dt power stages |
| Supply Voltage Range | VDDI: 2.7–5.5 V; VDDA/VDDB: 6.5–24 V; supports wide-input isolated DC-DC bias rails |
Pinout & Package
SI8230AB-B-IS1R is housed in a RoHS-compliant 16-pin wide-body SOIC package (WBSOIC-16) with 8.0 mm creepage/clearance, optimized for high-voltage isolation integrity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | High-side input | TTL-compatible logic input controlling VOA; referenced to GNDI |
| VIB | Low-side input | TTL-compatible logic input controlling VOB; referenced to GNDI |
| GNDI | Input-side ground | Reference for input logic and VDDI supply; galvanically isolated from output grounds |
| VDDI | Input-side supply | 2.7–5.5 V logic supply; includes UVLO (4.0 V typ) and 3 mA quiescent current |
| DISABLE | Global shutdown control | Active-high; forces both outputs low within 60 ns when asserted |
| VDDA | High-side driver supply | 6.5–24 V supply for VOA output stage; includes UVLO (5–12.5 V selectable) |
| VOA | High-side gate drive output | 0.5 A sink / 0.25 A source; drives N-channel MOSFET gate referenced to GNDA |
| GNDA | High-side output ground | Return path for VDDA and VOA; isolated from GNDI and GNDB |
| VDDB | Low-side driver supply | 6.5–24 V supply for VOB output stage; shares UVLO options with VDDA |
| VOB | Low-side gate drive output | 0.5 A sink / 0.25 A source; drives N-channel MOSFET gate referenced to GNDB |
| GNDB | Low-side output ground | Return path for VDDB and VOB; isolated from GNDI and GNDA |
| DT | Dead-time programming | Connects external resistor (6–220 kΩ) to set programmable dead time (70–900 ns) |
Key Features
| Feature | Design Value |
|---|---|
| Two independent isolated drivers | Enables compact half-bridge gate drive without external isolation components or layout complexity |
| Programmable dead time | Configurable via single external resistor (RDT) to prevent shoot-through in synchronous buck or inverter topologies |
| Overlap protection | Hardware-level logic blocks simultaneous high-side/low-side activation, eliminating risk of cross-conduction |
| AEC-Q100 qualification | Validated for automotive under-hood applications including traction inverters and onboard chargers |
| High CMTI (>45 kV/µs) | Ensures reliable operation in noisy motor drive and solar inverter environments with rapid bus voltage transitions |
Applications
| Motor Control Systems | Solar Inverters |
|---|---|
Use Scenario: Driving high-side/low-side IGBTs in three-phase BLDC or PMSM motor controllers for HVAC compressors and industrial pumps. IC Role / Device Role / Timing Role: Isolated gate driver providing independent, synchronized, and shoot-through-protected control of upper/lower switches in each phase leg. Use Value: 60 ns propagation delay matching and 0.5 A drive strength enable precise PWM timing at 20–40 kHz carrier frequencies while maintaining thermal margin. | Use Scenario: Controlling MOSFETs in the DC-AC H-bridge stage of string inverters operating at 1000 V DC bus. IC Role / Device Role / Timing Role: Reinforced-isolation gate driver delivering safe, noise-immune switching signals across high dv/dt boundaries between control and power domains. Use Value: 5 kVRMS isolation rating and >45 kV/µs CMTI ensure functional safety compliance and long-term reliability in outdoor photovoltaic installations. |
| Isolated DC-DC Power Supplies | Industrial Motor Drives |
Use Scenario: Gate-driving synchronous rectifiers and primary-side switches in isolated flyback or forward converters for telecom and server PSUs. IC Role / Device Role / Timing Role: Dual-channel isolated driver enabling active clamp, synchronous rectification, or resonant topology control with minimal component count. Use Value: Independent VDDA/VDDB supplies allow flexible biasing schemes (e.g., bootstrap vs. isolated auxiliary winding), while 24 V max supply supports wide-input designs. | Use Scenario: Replacing optocoupler-based gate drive in variable-frequency drives for conveyor belts and CNC spindles. IC Role / Device Role / Timing Role: High-integration isolated driver replacing discrete opto + buffer + level-shift solutions in legacy industrial VFDs. Use Value: Eliminates LED aging, temperature drift, and slow propagation delays-improving system efficiency and reducing maintenance intervals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8230AD-B-IS1R | Same pinout and function; differs only in UVLO threshold (5 V vs. 4 V nominal on VDDI) | Preferred where higher input-supply UVLO margin is required to avoid false disable during brownout | Select based on system-level VDDI regulation stability and tolerance requirements |
| UCC21520DW | TI dual-channel isolated driver; 4 A peak output, 5.7 kVRMS isolation, but no programmable dead time or overlap protection | Better suited for high-current, non-overlap-critical applications like LLC resonant converters | Choose UCC21520DW only if higher drive strength is mandatory and shoot-through prevention is handled externally |
Compared with Si8230AD-B-IS1R and UCC21520DW, the SI8230AB-B-IS1R uniquely combines 0.5 A drive capability, hardware-enforced overlap protection, and resistor-programmable dead time in a 5 kVRMS wide-body SOIC-making it optimal for cost-sensitive, safety-critical half-bridge implementations where shoot-through risk must be eliminated at the IC level.
Availability
SI8230AB-B-IS1R is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and isolated DC-DC power supplies requiring stable component supply, long-term lifecycle assurance, and full traceability.
Supply support for SI8230AB-B-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
Silicon Labs is a fabless semiconductor company specializing in precision timing, isolation, and mixed-signal ICs for industrial, automotive, and communications markets.
The Si823x product line delivers high-reliability isolated gate drivers targeting high-efficiency power conversion systems where safety certification, noise immunity, and integration reduce bill-of-materials and layout complexity.
FAQ
What is the maximum isolation voltage rating for SI8230AB-B-IS1R?
The SI8230AB-B-IS1R is rated for 5 kVRMS input-to-output isolation per UL1577 (1 minute test), validated for reinforced insulation per IEC 60950-1 and VDE 0884-5. This rating applies specifically to the wide-body SOIC-16 package variant (WBSOIC-16), which provides 8.0 mm creepage and clearance. The SI8230AB-B-IS1R meets all regulatory requirements for use in Class I and Class II AC-connected equipment.
Does SI8230AB-B-IS1R support programmable dead time, and how is it configured?
Yes, the SI8230AB-B-IS1R supports programmable dead time via the DT pin. An external resistor (RDT) connected between DT and VDDI sets the dead time duration-from 70 ns (RDT = 6 kΩ) to 900 ns (RDT = 100 kΩ), with maximum usable value of 220 kΩ. This feature is implemented in hardware and requires no configuration registers or firmware, making it ideal for deterministic real-time gate drive in hard-switched topologies.
What is the purpose of the DISABLE pin on SI8230AB-B-IS1R?
The DISABLE pin on SI8230AB-B-IS1R is an active-high global shutdown control that forces both VOA and VOB outputs low within 60 ns of assertion. It overrides all input states (VIA/VIB) and is electrically isolated from the input domain. This pin enables fast fault response in overcurrent or overtemperature conditions and supports system-level safety interlocks without requiring changes to the main control logic.
Can SI8230AB-B-IS1R drive both high-side and low-side N-channel MOSFETs simultaneously?
Yes, the SI8230AB-B-IS1R is explicitly designed as a high-side/low-side isolated driver for N-channel MOSFETs. It provides two fully isolated output channels (VOA and VOB), each with independent supplies (VDDA/GNDA and VDDB/GNDB), enabling direct gate drive of high-side and low-side switches in half-bridge configurations. Its built-in overlap protection prevents simultaneous conduction, ensuring safe operation even during logic transition errors.
What safety certifications does SI8230AB-B-IS1R hold?
The SI8230AB-B-IS1R holds UL1577 recognition (5000 Vrms), CSA Component Acceptance Notice 5A (IEC 60950-1, 61010-1, 60601-1), VDE certification to IEC 60747-5-5 and EN 60950-1, and CQC approval to GB4943.1. All certifications apply to the 5 kVRMS-rated wide-body SOIC-16 package and cover reinforced insulation for end-equipment up to 600 VRMS working voltage.
SI8230AB-B-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:
- Obsolete
- 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:
- 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
SI8230AB-B-IS1R FAQ
1.How can I place an order for SI8230AB-B-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI8230AB-B-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 SI8230AB-B-IS1R reliable?
The price and inventory of SI8230AB-B-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI8230AB-B-IS1R is usually 5 days.
3.What payment methods are accepted for SI8230AB-B-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI8230AB-B-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI8230AB-B-IS1R?
SI8230AB-B-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI8230AB-B-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 SI8230AB-B-IS1R?
For technical support, including SI8230AB-B-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI8230AB-B-IS1R requirements.
6.How does Aetrix verify that SI8230AB-B-IS1R is sourced from the original manufacturer or authorized distributors?
All SI8230AB-B-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 SI8230AB-B-IS1R meets industry standards.
7.What is the process for return or replacement of SI8230AB-B-IS1R?
All SI8230AB-B-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI8230AB-B-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 SI8230AB-B-IS1R part is unused and in its original packaging.
Return procedure for SI8230AB-B-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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