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Skyworks Solutions Inc. SI82390AB-IS1R
- Part No.:
- SI82390AB-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82390AB-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,013
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Product details
Overview
SI82390AB-IS1R from Skyworks Solutions is a dual-channel isolated gate driver IC designed for high-side/low-side MOSFET and IGBT control in power converters. It delivers 4.0 A peak output current, operates with 2.5 V–5.5 V input supply (VDDI), supports up to 5 kVRMS isolation, and features enhanced output UVLO with status feedback. It is used in solar inverters, motor drives, and isolated DC-DC supplies where robust isolation and fault-aware gate driving are critical.
For engineers reviewing the SI82390AB-IS1R datasheet, SI82390AB-IS1R pinout, SI82390AB-IS1R application, or SI82390AB-IS1R equivalent, key selection considerations include its 1 ms safe startup time, independent input control (VIA/VIB), SOIC-16 narrow-body package, and integrated EN pin with fail-safe low-default behavior during VDDI power-down.
Technical Context
The SI82390AB-IS1R implements RF-based silicon isolation with on/off keying modulation, enabling high CMTI (100 kV/µs) and low propagation delay (30 ns). Its architecture separates input logic (VDDI side) from two isolated driver outputs (VDDA/VDDB), each with independent UVLO monitoring and automatic low-state forcing upon undervoltage detection.
It supports independent dual-input operation (not PWM mode), includes an active-high EN pin that overrides all inputs to force both outputs low, and provides RDY status feedback. The device enters fail-safe mode-driving both outputs low-when VDDI is unpowered or falls below UVLO threshold (6 V), ensuring safe power stage shutdown.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC62368-1 and UL 1577 for safety-critical AC/DC and traction systems. |
| Peak Output Current | 4.0 A - sufficient to drive high-Qg MOSFETs/IGBTs at high switching frequencies without external buffers. |
| VDDI Supply Range | 2.5 V–5.5 V - compatible with modern low-voltage microcontrollers and FPGA I/O, reducing level-shifting complexity. |
| Propagation Delay | 30 ns - ensures tight timing control in high-frequency (>100 kHz) topologies like SiC-based inverters. |
| UVLO Threshold | 6 V on VDDA/VDDB - prevents erratic switching during brown-out conditions; status feedback enables controller-level fault response. |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free output initialization after power-up, critical for transformer-coupled topologies. |
| CMTI | 100 kV/µs - suppresses false triggering in noisy high-dV/dt environments such as motor drives and EV traction inverters. |
Pinout & Package
SI82390AB-IS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width), optimized for high-density PCB layouts in industrial and automotive power modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Input A logic signal | TTL-compatible high-true control for output A; enables independent high-side or low-side gate drive sequencing. |
| VIB | Input B logic signal | TTL-compatible high-true control for output B; allows asymmetric duty-cycle control in half-bridge configurations. |
| EN | Enable input (active high) | Forces both outputs low regardless of VIA/VIB state - essential for system-level fault shutdown and functional safety compliance. |
| RDY | Ready status output | Open-drain digital flag indicating valid VDDI and successful exit from UVLO - used by MCU to synchronize gate drive enable. |
| VOA | Output A driver | 4.0 A capable isolated output driving high-side or low-side switch; defaults low during VDDI power-down for fail-safe operation. |
| VOB | Output B driver | 4.0 A capable isolated output; independently monitored UVLO ensures safe turn-off even if only one driver supply fails. |
| VDDI | Input-side supply | 2.5 V–5.5 V logic supply; powers internal isolator and input circuitry - decoupling must be placed adjacent to pin. |
| VDDA | Driver A supply | 10 V–24 V isolated supply for output A; UVLO monitoring prevents partial drive during rail collapse. |
| VDDB | Driver B supply | 10 V–24 V isolated supply for output B; independent UVLO enables differential rail monitoring in split-supply designs. |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, RDY, and VDDI - must be separated from power-side grounds to maintain isolation integrity. |
| GND1 | Driver A ground | Return path for VOA and VDDA - forms isolated domain with VDDA; requires local decoupling capacitor. |
| GND2 | Driver B ground | Return path for VOB and VDDB - forms second isolated domain; enables true galvanic separation between high/low-side drivers. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced UVLO with feedback | Monitors VDDA and VDDB independently and feeds fault status across isolation barrier to RDY pin - enables real-time controller diagnostics. |
| Fail-safe default-low outputs | Both VOA and VOB drive low when VDDI is absent or in UVLO - eliminates shoot-through risk during power-up/down sequences. |
| 1 ms delayed startup | Guarantees monotonic output transition after VDDI stabilization - prevents transformer saturation in forward/flyback converters. |
| Active-high EN pin | Provides hardware-level override for functional safety (e.g., ISO 26262 ASIL-B/C systems) without software intervention. |
| SOIC-16 narrow-body package | 5.3 mm body width reduces PCB footprint vs. wide-body variants - ideal for space-constrained industrial inverters and OBC modules. |
Applications
| Solar Inverter Half-Bridge | Industrial Motor Drive |
|---|---|
Use Scenario: Driving complementary high-side and low-side IGBTs in a 3-phase inverter stage for grid-tied photovoltaic systems. IC Role / Device Role / Timing Role: Isolated dual gate driver providing independent control of upper/lower switches with synchronized dead-time management and UVLO fault reporting. Use Value: Prevents shoot-through via fail-safe low-default outputs and enables rapid fault recovery using RDY status feedback during islanding events. |
Use Scenario: Controlling power stages in HVAC compressors and servo amplifiers requiring precise PWM timing and thermal resilience. IC Role / Device Role / Timing Role: High-CMTI isolated driver delivering 4.0 A peak current to fast-switching Si-MOSFETs at 20–50 kHz switching frequencies. Use Value: 100 kV/µs CMTI immunity maintains signal integrity in electrically noisy factory environments with variable-frequency drives nearby. |
| On-Board Charger (OBC) | Isolated DC-DC Converter |
Use Scenario: Gate driving in bidirectional CLLLC resonant converters within automotive on-board chargers. IC Role / Device Role / Timing Role: Dual isolated driver supporting independent phase-shifted control of primary-side switches with precise 30 ns propagation matching. Use Value: Tight skew control minimizes circulating current losses; 1 ms startup delay ensures safe soft-start before resonant tank energization. |
Use Scenario: Driving synchronous rectifiers and primary-side switches in isolated 48 V–12 V DC-DC modules for telecom and server PSUs. IC Role / Device Role / Timing Role: Reinforced-isolation driver enabling secondary-side sensing and primary-side gate control across safety boundary. Use Value: 5 kVRMS isolation rating satisfies IEC62368-1 reinforced insulation requirements while supporting compact planar transformer integration. |
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 |
|---|---|---|---|
| SI82390AD-IS | SOIC-16 wide-body package (7.5 mm width); identical electrical specs and pinout except for land pattern and creepage distance. | Better suited for high-humidity or high-pollution environments due to increased creepage/clearance; less space-efficient on dense boards. | Select SI82390AD-IS only when reinforced creepage >8.0 mm is required per IEC60664-1; otherwise SI82390AB-IS1R offers superior layout density. |
| UCC5390SCDR | Texas Instruments part with 4 A drive, but uses capacitive isolation (not RF), lower CMTI (50 kV/µs), no RDY pin, and no programmable startup delay. | Lacks status feedback and safe startup timing - requires additional external logic for fault handling and sequencing in safety-critical designs. | Choose UCC5390SCDR only for cost-sensitive non-automotive applications where CMTI >75 kV/µs and diagnostic capability are not mandated. |
Compared with SI82390AD-IS, SI82390AB-IS1R saves board area with its narrow-body footprint while maintaining identical isolation, drive strength, and safety features; versus UCC5390SCDR, it delivers superior noise immunity, built-in diagnostics, and deterministic startup behavior essential for automotive and industrial inverters.
Availability
SI82390AB-IS1R is available at Aetrix Electronics and suitable for solar inverters, motor control systems, and on-board chargers requiring stable component supply, AEC-Q100-compliant performance, and long-term industrial lifecycle support.
Supply support for SI82390AB-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, isolation, and precision timing technologies.
The Si8239x family was engineered specifically for high-reliability isolated gate driving in power conversion systems, emphasizing safety certification (UL, VDE, CQC), automotive-grade process flows, and silicon-isolation advantages over optocouplers.
FAQ
What is the isolation voltage rating of the SI82390AB-IS1R?
The SI82390AB-IS1R provides 5 kVRMS isolation withstand voltage, certified to UL 1577 and compliant with reinforced insulation standards including IEC62368-1 and VDE 0884-10. This rating applies across the full operating temperature range (–40 °C to +125 °C) and supports safety-critical applications such as EV traction inverters and industrial UPS systems where galvanic separation is mandatory.
Does the SI82390AB-IS1R support PWM input mode?
No, the SI82390AB-IS1R is configured for independent dual-input operation (VIA and VIB), not single-PWM mode. It belongs to the Si82390xx variant group, which uses separate logic inputs for high-side and low-side control. For PWM-input versions, refer to SI82394xx or SI82398xx part numbers - those include internal dead-time generation and different truth-table behavior.
What happens to the outputs of the SI82390AB-IS1R when VDDI is unpowered?
When VDDI is unpowered or falls below UVLO threshold, the SI82390AB-IS1R forces both VOA and VOB into a low state - a fail-safe behavior confirmed in Table 2.1 of the datasheet. This prevents unintended turn-on of power switches and is critical for preventing shoot-through in half-bridge configurations during power-loss scenarios.
Is the SI82390AB-IS1R qualified for automotive applications?
The SI82390AB-IS1R is an industrial-grade part (suffix "-I"). Its automotive-grade counterpart is SI82390AB-AS1R, which undergoes full AEC-Q100 qualification, AIAG-compliant PPAP documentation, and automotive-specific manufacturing flow. While SI82390AB-IS1R shares identical electrical parameters and construction, it lacks the extended reliability validation required for under-hood automotive deployment.
What is the purpose of the RDY pin on the SI82390AB-IS1R?
The RDY pin on the SI82390AB-IS1R is an open-drain status output that goes high only after VDDI has stabilized above UVLO and the internal logic has completed safe initialization (including the 1 ms startup delay). It provides a hardware handshake signal to the host controller, enabling synchronized gate drive enable and eliminating need for software timeout delays in safety-critical startup sequences.
SI82390AB-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):
- 35kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 40ns, 40ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 12ns, 12ns (Max)
- Current - Output High, Low:
- 2A, 4A
- Current - Peak Output:
- 4A
- 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
SI82390AB-IS1R FAQ
1.How can I place an order for SI82390AB-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82390AB-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 SI82390AB-IS1R reliable?
The price and inventory of SI82390AB-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82390AB-IS1R is usually 5 days.
3.What payment methods are accepted for SI82390AB-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82390AB-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82390AB-IS1R?
SI82390AB-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82390AB-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 SI82390AB-IS1R?
For technical support, including SI82390AB-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82390AB-IS1R requirements.
6.How does Aetrix verify that SI82390AB-IS1R is sourced from the original manufacturer or authorized distributors?
All SI82390AB-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 SI82390AB-IS1R meets industry standards.
7.What is the process for return or replacement of SI82390AB-IS1R?
All SI82390AB-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82390AB-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 SI82390AB-IS1R part is unused and in its original packaging.
Return procedure for SI82390AB-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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