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Skyworks Solutions Inc. SI82395AB-IS1R
- Part No.:
- SI82395AB-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82395AB-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,905
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Product details
Overview
SI82395AB-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 UVLO with status feedback and 1 ms safe delayed startup. It is used in solar inverters and on-board chargers requiring robust noise immunity and fail-safe operation.
For engineers reviewing the SI82395AB-IS1R datasheet, SI82395AB-IS1R pinout, SI82395AB-IS1R application, or SI82395AB-IS1R equivalent, key selection criteria include its SOIC-16 narrow-body package, independent VIA/VIB inputs, absence of output UVLO (only enhanced UVLO with status pin), programmable dead time (10–200 ns), and automotive-grade qualification readiness via -AS1 suffix.
Technical Context
The SI82395AB-IS1R implements RF-based silicon isolation with on/off keying modulation, enabling high CMTI (100 kV/µs) and low propagation delay (30 ns). Its dual-channel architecture supports independent high-side/low-side control with separate VIA and VIB inputs, and includes an active-high EN pin for system-level safety shutdown.
It integrates enhanced UVLO monitoring with status feedback via RDY pin, fail-safe default-low outputs during VDDI power-down, and programmable dead time to prevent shoot-through in half-bridge topologies. The device operates across –40 °C to +125 °C and meets AEC-Q100 Grade 1 requirements when ordered as SI82395AB-AS1R.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC62368-1 and VDE 0884-10. |
| Peak Output Current | 4.0 A - drives large gate capacitance MOSFETs/IGBTs without external buffers in high-power switching stages. |
| VDDI Range | 2.5 V–5.5 V - compatible with modern low-voltage microcontrollers and logic interfaces. |
| Propagation Delay | 30 ns - ensures tight timing control in high-frequency (>100 kHz) power converters. |
| CMTI | 100 kV/µs - suppresses false triggering in noisy motor drive and inverter environments. |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free initialization sequence before output activation. |
| Operating Temp | –40 °C to +125 °C - supports industrial and automotive under-hood applications without derating. |
Pinout & Package
SI82395AB-IS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (7.5 mm width), rated for 260 °C peak reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Input A | TTL-compatible high-true logic input controlling output VOA. |
| VIB | Input B | TTL-compatible high-true logic input controlling output VOB. |
| EN | Enable | Active-high global shutdown: forces both outputs low regardless of VIA/VIB state. |
| RDY | Status Output | Open-drain signal indicating valid VDDI and successful startup (high = ready). |
| VDDI | Input-Side Supply | 2.5 V–5.5 V power for input logic and isolation barrier; powers internal oscillator. |
| GNDI | Input-Side Ground | Reference for VIA, VIB, EN, RDY, and VDDI - galvanically isolated from driver side. |
| VDDA | Driver A Supply | 10 V–24 V supply for high-side output stage; enables 4 A sink/source capability. |
| VOA | Output A | High-side gate driver output; defaults low during VDDI undervoltage or EN low. |
| GND1 | Driver A Ground | Return path for VDDA and VOA - isolated from GNDI and GND2. |
| VDDB | Driver B Supply | 10 V–24 V supply for low-side output stage; independent of VDDA for asymmetrical topologies. |
| VOB | Output B | Low-side gate driver output; defaults low during VDDI undervoltage or EN low. |
| GND2 | Driver B Ground | Return path for VDDB and VOB - isolated from GNDI and GND1. |
| VDDI | Input-Side Supply | Duplicated pin for decoupling; must be connected to same 1 µF + 0.1 µF capacitor network as Pin 1. |
| GNDI | Input-Side Ground | Duplicated pin for low-inductance grounding; must be tied directly to Pin 2 ground plane. |
| NC | No Connect | Internally unused; must remain unconnected and unbonded per datasheet. |
| NC | No Connect | Internally unused; must remain unconnected and unbonded per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Enhanced UVLO with RDY feedback | Monitors VDDI and reports readiness via open-drain RDY pin - enables synchronized system boot sequencing. |
| Programmable dead time | 10–200 ns range - prevents cross-conduction in half-bridge configurations without external timing components. |
| Fail-safe default-low outputs | VOA and VOB automatically drive low when VDDI is absent or EN is deasserted - eliminates floating gate risk. |
| Silicon RF isolation | Replaces optocouplers with 100 kV/µs CMTI and 30 ns propagation - improves reliability and lifetime over opto-based drivers. |
| AEC-Q100 qualified variant | SI82395AB-AS1R version available - manufactured with automotive process flows and PPAP documentation support. |
Applications
| Solar Inverters | On-Board Chargers (OBC) |
|---|---|
Use Scenario: Isolated half-bridge driving in DC-AC conversion stages of string and central inverters. IC Role / Device Role: Dual-channel isolated gate driver controlling high-side and low-side IGBTs/MOSFETs in H-bridge topology. Use Value: 5 kVRMS isolation and 100 kV/µs CMTI ensure reliable operation in high dv/dt photovoltaic environments with minimal EMI-induced false triggering. | Use Scenario: Bidirectional AC-DC and DC-DC power stages in EV on-board chargers. IC Role / Device Role: High-side/low-side gate driver for SiC MOSFETs in totem-pole PFC and isolated LLC resonant converters. Use Value: 4.0 A peak drive current and 30 ns propagation delay enable fast switching of wide-bandgap devices at >100 kHz, improving power density and efficiency. |
| Battery Management Systems | Traction Inverters |
Use Scenario: Isolated gate driving for contactor control and cell-balancing switches in high-voltage battery packs. IC Role / Device Role: Dual isolated driver providing independent control of precharge and main contactors with fail-safe default-low behavior. Use Value: Enhanced UVLO with RDY pin allows microcontroller to verify driver readiness before closing high-voltage paths - critical for functional safety compliance. | Use Scenario: Three-phase motor control in hybrid and battery electric vehicles using IGBT or SiC modules. IC Role / Device Role: Gate driver for each half-bridge leg in inverter power stage, with independent VDDA/VDDB supplies. Use Value: SOIC-16 narrow-body package fits compact inverter layouts; AEC-Q100 qualification (via -AS1R) supports ASIL-B system integration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI82335AB-IS1R | Lacks RDY pin and enhanced UVLO; only basic UVLO with no status feedback. | Suitable for cost-sensitive industrial inverters where startup sequencing is handled externally. | Select when RDY feedback and enhanced UVLO are not required - lower BOM cost but reduced functional safety capability. |
| UCC5390SCDR | TI part with integrated deglitch filter and higher 5.5 A peak output; no programmable dead time. | Better suited for ultra-noisy industrial motor drives requiring stronger noise filtering. | Choose when deglitching and higher drive strength outweigh need for dead-time tuning - requires layout adaptation due to different pinout. |
Compared with SI82395AB-IS1R, SI82335AB-IS1R omits critical safety features like RDY feedback and enhanced UVLO, while UCC5390SCDR trades programmable dead time for built-in deglitching and higher drive strength - making SI82395AB-IS1R optimal for applications needing precise timing control and verified startup readiness.
Availability
SI82395AB-IS1R is available at Aetrix Electronics and suitable for solar inverters, on-board chargers, and traction inverters requiring stable component supply, long-term lifecycle support, and automotive-grade traceability.
Supply support for SI82395AB-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 product line was engineered to replace optocoupled gate drivers in high-reliability power systems, delivering superior CMTI, tighter timing, and extended temperature operation for EV, renewable energy, and industrial motor control.
FAQ
What is the isolation voltage rating of the SI82395AB-IS1R?
The SI82395AB-IS1R provides 5 kVRMS isolation rating per UL 1577 and VDE 0884-10 standards. This reinforced insulation supports safety-critical applications such as solar inverters and EV on-board chargers where galvanic separation between control and power domains is mandatory. The isolation barrier uses Skyworks' proprietary silicon RF technology - not optocoupling - ensuring long-term stability and immunity to LED aging.
Does the SI82395AB-IS1R support programmable dead time, and what is its range?
Yes, the SI82395AB-IS1R supports programmable dead time in the range of 10–200 ns. This feature is implemented internally and does not require external RC networks. It prevents shoot-through in half-bridge configurations by inserting a controlled non-overlap interval between high-side and low-side switch turn-on events - critical for SiC and GaN-based converters operating above 100 kHz. The setting is fixed per device variant and cannot be adjusted dynamically.
What is the function of the RDY pin on the SI82395AB-IS1R?
The RDY pin on the SI82395AB-IS1R is an open-drain status output that goes high after VDDI exceeds its UVLO threshold and the 1 ms safe startup delay completes. It signals to the host controller that the SI82395AB-IS1R is fully initialized and outputs are ready for valid control. During VDDI undervoltage or EN deassertion, RDY remains low - enabling hardware-enforced sequencing in safety-critical power systems.
How does the SI82395AB-IS1R behave during VDDI power loss?
When VDDI drops below its UVLO threshold, the SI82395AB-IS1R immediately forces both VOA and VOB outputs low - a fail-safe condition that prevents unintended gate drive in power stages. This behavior is guaranteed even if VDDA or VDDB remain powered. The RDY pin also goes low, signaling loss of readiness. This design eliminates risk of shoot-through or latch-up during brownout conditions common in automotive and industrial power systems.
Is the SI82395AB-IS1R qualified for automotive applications?
The SI82395AB-IS1R is an industrial-grade part, but its automotive-grade counterpart SI82395AB-AS1R is AEC-Q100 qualified and manufactured using full automotive process flows. Both share identical electrical parameters and pinout. SI82395AB-AS1R includes AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and zero-defect methodology - making it suitable for ASIL-B systems in OBCs, BMS, and traction inverters.
SI82395AB-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
SI82395AB-IS1R FAQ
1.How can I place an order for SI82395AB-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395AB-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 SI82395AB-IS1R reliable?
The price and inventory of SI82395AB-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395AB-IS1R is usually 5 days.
3.What payment methods are accepted for SI82395AB-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395AB-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395AB-IS1R?
SI82395AB-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395AB-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 SI82395AB-IS1R?
For technical support, including SI82395AB-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395AB-IS1R requirements.
6.How does Aetrix verify that SI82395AB-IS1R is sourced from the original manufacturer or authorized distributors?
All SI82395AB-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 SI82395AB-IS1R meets industry standards.
7.What is the process for return or replacement of SI82395AB-IS1R?
All SI82395AB-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82395AB-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 SI82395AB-IS1R part is unused and in its original packaging.
Return procedure for SI82395AB-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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