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Skyworks Solutions Inc. SI82392BB-IS1R
- Part No.:
- SI82392BB-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82392BB-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,517
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Product details
Overview
SI82392BB-IS1R from Skyworks Solutions is a high-side/low-side isolated gate driver IC with dual 4.0 A peak output, 2.5 V–5.5 V input supply (VDDI), and integrated safety features including enhanced UVLO detection, EN pin control, and fail-safe low-default outputs during VDDI power-down. It drives power MOSFETs and IGBTs in motor control inverters and isolated DC-DC converters.
For engineers reviewing the SI82392BB-IS1R datasheet, SI82392BB-IS1R pinout, SI82392BB-IS1R application, or SI82392BB-IS1R equivalent, key selection criteria include its 8 V output UVLO threshold, SOIC-16 narrow-body package, programmable dead time absence, deglitch disable status, and compatibility with high-CMTI (100 kV/µs) industrial switching environments.
Technical Context
The SI82392BB-IS1R implements two independent isolated channels using Skyworks' proprietary RF-based silicon isolation barrier, supporting up to 5 kVRMS withstand voltage and 1500 VDC peak driver-to-driver differential voltage. Its logic operates with separate VIA/VIB inputs and includes fail-safe behavior: both outputs drive low when VDDI is unpowered or when either VDDA or VDDB falls below UVLO thresholds.
This variant lacks UVLO status feedback (RDY pin inactive), has no delayed startup (tSTARTUP_SAFE = N/A), and does not support programmable dead time - distinguishing it from Si82394/8 series. It uses TTL-compatible high-true inputs and requires external 100 kΩ pull-down on EN for safe disable.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC62368-1 and UL 1577 for mains-connected systems. |
| Peak Output Current | 4.0 A - sufficient to directly drive high-gate-charge IGBTs and GaN FETs without external buffers in 10–24 V driver supply range. |
| Input Supply Range (VDDI) | 2.5 V–5.5 V - supports direct interface with 3.3 V and 5 V microcontrollers and FPGA I/O without level shifting. |
| Output UVLO Threshold | 8 V - ensures stable turn-on only when driver-side supplies (VDDA/VDDB) exceed minimum gate drive voltage for power devices. |
| Common-Mode Transient Immunity | 100 kV/µs - prevents false triggering in high-dv/dt environments like traction inverters and solar string converters. |
| Propagation Delay | 30 ns - enables precise timing control in >1 MHz switching applications such as resonant LLC and SiC-based PFC stages. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient conditions without derating. |
Pinout & Package
SI82392BB-IS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width), rated for 260 °C peak reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | High-side input | TTL-compatible high-true logic input controlling VOA; referenced to GNDI. |
| VIB | Low-side input | TTL-compatible high-true logic input controlling VOB; referenced to GNDI. |
| EN | Enable input | Active-high enable; must be pulled down via 100 kΩ resistor to GNDI for safe default disable state. |
| VDDI | Input-side supply | 2.5–5.5 V supply powering input logic and isolation transmitter; decoupled with 1 µF + 0.1 µF capacitors. |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, and VDDI; galvanically isolated from power-side grounds. |
| VDDA | High-side driver supply | 10–24 V supply for high-side output stage (VOA); requires local 10 µF + 0.1 µF decoupling. |
| VOA | High-side output | 4.0 A peak source/sink output driving high-side switch gate; defaults low during VDDI UVLO or power loss. |
| GND1 | High-side ground | Reference for VDDA and VOA; electrically isolated from GNDI and GND2. |
| VDDB | Low-side driver supply | 10–24 V supply for low-side output stage (VOB); requires local 10 µF + 0.1 µF decoupling. |
| VOB | Low-side output | 4.0 A peak source/sink output driving low-side switch gate; defaults low during VDDI UVLO or power loss. |
| GND2 | Low-side ground | Reference for VDDB and VOB; electrically isolated from GNDI and GND1. |
| NC | No connect | Pins 13, 14, 15, and 16 are internally unused and must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe output default | Both VOA and VOB drive low when VDDI is unpowered - prevents shoot-through in half-bridge configurations during brownout. |
| Enhanced UVLO monitoring | Detects undervoltage on VDDA and VDDB independently at 8 V threshold - avoids partial gate drive that could cause device thermal runaway. |
| High CMTI immunity | 100 kV/µs common-mode transient immunity - maintains signal integrity across isolation barrier in noisy motor drive and inverter environments. |
| Robust RF isolation architecture | Silicon-based RF modulation (not pulse coding) - delivers lower propagation skew, tighter part-to-part matching, and superior magnetic field immunity vs optocouplers. |
| AEC-Q100 qualification | Qualified per AEC-Q100 Grade 1 (–40 °C to +125 °C) - suitable for automotive on-board chargers and battery management systems. |
Applications
| Motor Control Inverters | Solar String Inverters |
|---|---|
Use Scenario: Driving complementary IGBT pairs in 3-phase BLDC or PMSM motor drives with >20 kHz PWM frequency. IC Role / Device Role / Timing Role: High-side/low-side gate driver providing isolated, synchronized, shoot-through-protected gate signals with 30 ns delay matching. Use Value: Enables precise dead-time management via external circuitry while maintaining <1 ns skew between channels for reduced EMI and torque ripple. |
Use Scenario: Controlling H-bridge switches in transformerless photovoltaic inverters operating at 50–100 kHz switching frequencies. IC Role / Device Role / Timing Role: Isolated gate driver delivering 4.0 A peak current to SiC MOSFETs with reinforced insulation for grid-tied safety compliance. Use Value: 5 kVRMS isolation and 100 kV/µs CMTI ensure reliable operation under rapid PV array voltage transients and lightning-induced surges. |
| Industrial DC-DC Converters | On-Board Chargers (OBC) |
Use Scenario: Gate driving synchronous rectifiers and primary-side switches in isolated 1–3 kW telecom and server PSUs. IC Role / Device Role / Timing Role: Dual isolated driver enabling active clamp flyback or phase-shifted full-bridge topologies with independent high/low control. Use Value: 2.5 V VDDI compatibility allows direct MCU interfacing; 125 °C operation supports compact, convection-cooled designs. |
Use Scenario: Driving bidirectional AC/DC and DC/DC stages in 11–22 kW EV on-board chargers with functional safety requirements. IC Role / Device Role / Timing Role: AEC-Q100 qualified isolated gate driver providing fail-safe shutdown and UVLO fault signaling for ISO 26262 ASIL-B systems. Use Value: Fail-safe low-default outputs prevent unintended power device activation during controller reset or supply sequencing faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si82392BB-IS3R | SOIC-14 wide-body package; identical electrical specs and UVLO configuration (8 V, no RDY, no dead time). | Requires PCB layout change due to different footprint and creepage/clearance; narrower body reduces board area but lowers isolation margin. | Select IS3R for space-constrained designs where 14-pin WB meets safety spacing; verify creepage against system-level standards. |
| UCC5390SCDR | Texas Instruments part with 5 A peak output, 3.3/5 V VDDI, but no enhanced UVLO feedback and only 3.75 kVRMS isolation. | Lacks independent VDDA/VDDB UVLO monitoring - less robust for asymmetric power rail monitoring in critical inverters. | Choose UCC5390SCDR for cost-sensitive industrial SMPS where 3.75 kVRMS suffices and TI ecosystem integration is prioritized. |
Compared with SI82392BB-IS1R, Si82392BB-IS3R offers identical functionality in a smaller SOIC-14 WB footprint but reduced creepage, while UCC5390SCDR trades isolation strength and UVLO sophistication for higher peak current and TI-specific design tools - making SI82392BB-IS1R optimal for AEC-Q100-compliant, high-CMTI, dual-rail monitored applications.
Availability
SI82392BB-IS1R is available at Aetrix Electronics and suitable for motor control inverters, solar string inverters, and on-board chargers requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI82392BB-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.
The Si8239x family was designed specifically for high-reliability isolated gate driving in automotive and industrial power conversion, replacing aging optocoupler-based solutions with silicon-isolated drivers offering longer service life and tighter parametric matching.
FAQ
What is the UVLO threshold for SI82392BB-IS1R, and how does it affect gate drive behavior?
The SI82392BB-IS1R features an 8 V output UVLO threshold on both VDDA and VDDB. When either supply drops below 8 V, the corresponding output (VOA or VOB) is forced low to prevent partial gate turn-on and potential power device failure. This behavior is independent and monitored locally on each driver side, ensuring robust protection even with asymmetric rail collapse. SI82392BB-IS1R does not provide UVLO status feedback via RDY pin.
Does SI82392BB-IS1R support programmable dead time, and what alternatives exist if needed?
No, SI82392BB-IS1R does not support programmable dead time - this feature is exclusive to Si82394/8 series variants. For dead-time control, designers must implement external logic (e.g., FPGA or dedicated dead-time generator) or select SI82394BB4-IS1R, which offers 40–600 ns adjustable dead time. SI82392BB-IS1R relies on external timing circuits for shoot-through prevention in half-bridge topologies.
What is the isolation rating of SI82392BB-IS1R, and which safety standards does it meet?
SI82392BB-IS1R provides 5 kVRMS isolation rating with reinforced insulation per IEC62368-1 and UL 1577 (5000 Vrms for 1 minute). It also complies with VDE 0884-10 (basic insulation), EN60950-1, GB4943.1-2011, and CQC certification - making it suitable for mains-connected industrial and automotive systems requiring double or reinforced insulation barriers.
Can SI82392BB-IS1R be used with bootstrap gate drive configurations?
No - SI82392BB-IS1R is not compatible with bootstrap configurations. Its enhanced UVLO architecture requires independent, regulated VDDA and VDDB supplies. Bootstrap circuits create coupled, non-isolated VDD rails that prevent proper UVLO monitoring and may violate the requirement for independent power domains. Use dedicated isolated DC-DC supplies for VDDA and VDDB when deploying SI82392BB-IS1R.
What package type and pin count does SI82392BB-IS1R use, and are all pins functional?
SI82392BB-IS1R uses a SOIC-16 narrow-body (5.3 mm width) RoHS-compliant package. Pins 1–12 are fully functional (VIA, VIB, EN, VDDI, GNDI, VDDA, VOA, GND1, VDDB, VOB, GND2), while pins 13–16 are no-connect (NC) and must remain unconnected per the datasheet to avoid reliability risks or electrical interference.
SI82392BB-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):
- 100kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 40ns, 40ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 12ns, 12ns
- Current - Output High, Low:
- 2A, 4A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 10V ~ 24V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
- Approval Agency:
- -
SI82392BB-IS1R FAQ
1.How can I place an order for SI82392BB-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82392BB-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 SI82392BB-IS1R reliable?
The price and inventory of SI82392BB-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82392BB-IS1R is usually 5 days.
3.What payment methods are accepted for SI82392BB-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82392BB-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82392BB-IS1R?
SI82392BB-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82392BB-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 SI82392BB-IS1R?
For technical support, including SI82392BB-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82392BB-IS1R requirements.
6.How does Aetrix verify that SI82392BB-IS1R is sourced from the original manufacturer or authorized distributors?
All SI82392BB-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 SI82392BB-IS1R meets industry standards.
7.What is the process for return or replacement of SI82392BB-IS1R?
All SI82392BB-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82392BB-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 SI82392BB-IS1R part is unused and in its original packaging.
Return procedure for SI82392BB-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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