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Skyworks Solutions Inc. SI82395AD-IS
- Part No.:
- SI82395AD-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82395AD-IS.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:689
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Product details
Overview
SI82395AD-IS 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 UVLO with status feedback and 1 ms safe delayed startup. It is used in solar inverters and traction inverters requiring robust isolation and fault-aware gate drive.
For engineers reviewing the SI82395AD-IS datasheet, SI82395AD-IS pinout, SI82395AD-IS application, or SI82395AD-IS equivalent, key selection criteria include its SOIC-16 wide-body package, independent VIA/VIB inputs, absence of output UVLO (but inclusion of enhanced UVLO), RDY pin for system readiness monitoring, and programmable dead time (10–200 ns) without deglitch filtering.
Technical Context
The SI82395AD-IS implements RF-based silicon isolation with a transmitter-receiver architecture across a semiconductor barrier, enabling high CMTI (100 kV/µs) and low propagation delay (30 ns). Its logic behavior follows truth tables defined for Si82395-series devices, where outputs default low during VDDI undervoltage or EN deactivation.
It supports independent high-true TTL-compatible inputs (VIA, VIB), features an active-high EN pin with internal 100 kΩ pull-down requirement, and provides RDY status signaling. Unlike Si82390/1/3 variants, it does not feed back driver-side UVLO faults to the input side - only enhanced UVLO detection and reporting are active.
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 power systems. |
| Peak Output Current | 4.0 A - drives large gate capacitances of high-power SiC MOSFETs and IGBTs without external buffers. |
| VDDI Supply Range | 2.5 V to 5.5 V - compatible with modern low-voltage microcontrollers and FPGA I/O domains. |
| Propagation Delay | 30 ns - ensures tight timing control in high-frequency switching applications (e.g., >100 kHz DC-DC converters). |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free initialization sequence before output activation. |
| Operating Temperature | –40 °C to +125 °C - qualified for industrial and automotive under-hood environments. |
| Dead Time Range | 10–200 ns - configurable via external resistor to prevent shoot-through in half-bridge topologies. |
Pinout & Package
SI82395AD-IS is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.3 mm height) with creepage/clearance optimized for reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Input A signal | TTL-compatible high-true logic input controlling output VOA; referenced to GNDI. |
| VIB | Input B signal | TTL-compatible high-true logic input controlling output VOB; referenced to GNDI. |
| EN | Enable control | Active-high enable; pulls both outputs low when deasserted; requires 100 kΩ pull-down to GNDI. |
| VDDI | Input-side supply | 2.5–5.5 V power for input logic and isolation barrier; UVLO threshold at 2.3 V (typ). |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, VDDI, and RDY; galvanically isolated from power-side grounds. |
| RDY | Ready status output | Open-drain digital flag indicating valid operation after 1 ms startup delay and UVLO exit. |
| VDDA | Driver A supply | 10–24 V supply for high-side or low-side driver A; enables 4 A sink/source capability. |
| VOA | Output A | Isolated gate drive output referenced to VSSA; actively driven high/low with 4 A peak. |
| VSSA | Driver A ground | Return path for VDDA and VOA; isolated from GNDI and VSSB. |
| VDDB | Driver B supply | 10–24 V supply for second driver channel; independent of VDDA for asymmetrical topologies. |
| VOB | Output B | Isolated gate drive output referenced to VSSB; synchronized but independently controlled vs. VOA. |
| VSSB | Driver B ground | Return path for VDDB and VOB; fully isolated from GNDI and VSSA. |
| NC | No connect | Pins 1, 9, and 16 are internally unused; must remain unconnected per datasheet. |
| GND | Package thermal pad | Exposed pad (Pin 16) is electrically NC but thermally connected to die substrate; recommended soldered for thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in single SOIC-16 WB | Reduces PCB area and component count vs. two discrete isolators + drivers; eliminates inter-channel skew. |
| Enhanced UVLO with status reporting | Detects input-side undervoltage and asserts RDY low; enables system-level fault coordination without external monitoring. |
| Programmable dead time (10–200 ns) | Prevents shoot-through in half-bridge configurations using a single external resistor - no MCU intervention required. |
| Fail-safe outputs on VDDI loss | Both VOA and VOB drive low when VDDI drops below UVLO threshold - prevents unintended power device turn-on. |
| 1 ms delayed startup | Ensures stable internal biasing and isolation barrier initialization before output activation - critical for transformer-coupled topologies. |
Applications
| Solar Inverters | Traction Inverters |
|---|---|
Use Scenario: Bidirectional DC-AC conversion in string and central inverters with SiC MOSFETs operating at 50–100 kHz. IC Role / Device Role / Timing Role: Isolated high-side/low-side gate driver providing 4 A peak current and 30 ns propagation matching for precise PWM edge alignment. Use Value: Enables fast switching with minimal dead time overhead while maintaining 5 kVRMS isolation between PV array and grid interface. |
Use Scenario: Motor phase control in battery electric vehicle (BEV) inverters, driving 750 V IGBT modules. IC Role / Device Role / Timing Role: Dual-channel isolated driver with independent VDDA/VDDB supplies supporting asymmetric bootstrap and floating supply schemes. Use Value: Delivers fail-safe shutdown on VDDI loss and RDY confirmation for ASIL-B functional safety sequencing. |
| Industrial DC-DC Converters | On-Board Chargers (OBC) |
Use Scenario: High-efficiency isolated 1–3 kW telecom and server PSUs using phase-shifted full-bridge topology. IC Role / Device Role / Timing Role: Gate driver with programmable dead time (10–200 ns) and 100 kV/µs CMTI to suppress noise-induced false triggering. Use Value: Eliminates need for external dead-time generators and improves EMI immunity in dense power stages. |
Use Scenario: AC/DC + DC/DC stages in automotive OBCs, requiring AEC-Q100 compliance and reinforced insulation. IC Role / Device Role / Timing Role: Isolated driver with 125 °C operation and enhanced UVLO for reliable gate control under wide battery voltage transients. Use Value: Supports safe startup and fault reporting (via RDY) aligned with ISO 26262 diagnostic requirements. |
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 |
|---|---|---|---|
| SI82395BD-IS | Same SOIC-16 WB package and pinout; differs only in output UVLO threshold (8 V vs. 6 V for SI82395AD-IS). | Used where higher driver-side undervoltage detection margin is required, e.g., 12 V gate drive rails with wider tolerance. | Select SI82395BD-IS if system-level UVLO coordination requires 8 V threshold; otherwise SI82395AD-IS is optimal for 6 V VDDA/VDDB designs. |
| SI82395CD-IS | Identical form, fit, and function except UVLO threshold set to 12 V; same RDY behavior, dead time range, and isolation rating. | Preferred in high-voltage gate drive applications (e.g., 15–24 V) where tighter UVLO hysteresis avoids nuisance shutdowns. | Choose SI82395CD-IS for 24 V driver supplies; SI82395AD-IS remains best suited for 10–12 V gate drive with 6 V UVLO guardband. |
Compared with SI82395BD-IS and SI82395CD-IS, the SI82395AD-IS offers the lowest UVLO threshold (6 V) within the same family, enabling earlier fault detection in lower-voltage gate drive systems while retaining identical timing, isolation, and safety features.
Availability
SI82395AD-IS is available at Aetrix Electronics and suitable for solar inverters, traction inverters, and industrial DC-DC converters requiring stable component supply, AEC-Q100-aligned reliability, and reinforced insulation certification.
Supply support for SI82395AD-IS 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, and precision timing solutions for high-reliability applications.
The SI8239x family was engineered specifically for isolated gate driving in high-power switching systems - emphasizing safety integrity, CMTI resilience, and integration density over legacy optocoupler-based alternatives.
FAQ
What is the isolation voltage rating of the SI82395AD-IS?
The SI82395AD-IS is rated for 5 kVRMS isolation withstand voltage per UL 1577 and IEC62368-1, supporting reinforced insulation in industrial and automotive power systems. This rating applies across the full temperature range (–40 °C to +125 °C) and is validated per VDE 0884-10 basic insulation and EN60950-1 reinforced insulation standards. The SI82395AD-IS achieves this using Skyworks' proprietary silicon RF isolation technology, not optocoupling.
Does the SI82395AD-IS support programmable dead time, and how is it configured?
Yes, the SI82395AD-IS supports programmable dead time from 10 ns to 200 ns, configured via a single external resistor connected to the DT pin. The resistor value sets the delay between VOA and VOB transitions to prevent shoot-through in half-bridge configurations. No firmware or digital interface is required - the setting is purely analog and deterministic. This feature is active in all SI82395AD-IS operating modes, including independent VIA/VIB control.
What is the function of the RDY pin on the SI82395AD-IS?
RDY is an open-drain status output on the SI82395AD-IS that signals when the device has completed safe startup and exited input-side UVLO. It goes high after a guaranteed 1 ms delay from VDDI reaching its UVLO+ threshold, confirming valid internal biasing and isolation barrier readiness. RDY is referenced to GNDI and must be pulled up externally; it is used by controllers to synchronize gate drive enablement with SI82395AD-IS operational readiness.
How does the SI82395AD-IS behave during VDDI undervoltage or power loss?
When VDDI falls below its UVLO– threshold (2.3 V typ), the SI82395AD-IS forces both VOA and VOB to drive low regardless of input states - a fail-safe condition preventing unintended power device turn-on. The RDY pin also goes low. This behavior is intrinsic to the SI82395AD-IS design and requires no external circuitry. Once VDDI recovers above UVLO+, the 1 ms delayed startup sequence reinitiates before outputs resume tracking VIA/VIB.
Is the SI82395AD-IS pin-compatible with other Si8239x variants like SI82395BD-IS?
Yes, the SI82395AD-IS is fully pin-compatible with SI82395BD-IS and SI82395CD-IS - same SOIC-16 wide-body footprint, identical pin functions, and matching electrical timing. The only difference is the output UVLO threshold (6 V for SI82395AD-IS, 8 V for SI82395BD-IS, 12 V for SI82395CD-IS), which is factory-set and non-adjustable. PCB layouts designed for one variant support drop-in replacement with any of these three parts.
SI82395AD-IS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 5000Vrms
- 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
SI82395AD-IS FAQ
1.How can I place an order for SI82395AD-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395AD-IS 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 SI82395AD-IS reliable?
The price and inventory of SI82395AD-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395AD-IS is usually 5 days.
3.What payment methods are accepted for SI82395AD-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395AD-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395AD-IS?
SI82395AD-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395AD-IS 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 SI82395AD-IS?
For technical support, including SI82395AD-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395AD-IS requirements.
6.How does Aetrix verify that SI82395AD-IS is sourced from the original manufacturer or authorized distributors?
All SI82395AD-IS 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 SI82395AD-IS meets industry standards.
7.What is the process for return or replacement of SI82395AD-IS?
All SI82395AD-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI82395AD-IS, 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 SI82395AD-IS part is unused and in its original packaging.
Return procedure for SI82395AD-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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