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Skyworks Solutions Inc. SI82395BB-IS1R
- Part No.:
- SI82395BB-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82395BB-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,256
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Product details
Overview
SI82395BB-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 2.5–5.5 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 SI82395BB-IS1R datasheet, SI82395BB-IS1R pinout, SI82395BB-IS1R application, or SI82395BB-IS1R equivalent, this page provides verified technical context, confirmed pin functions, real-world application mappings, and validated alternative options for motor control and isolated DC-DC design.
Technical Context
The SI82395BB-IS1R implements two independent isolated channels using Skyworks' proprietary RF-based silicon isolation barrier-enabling 100 kV/µs CMTI, 30 ns propagation delay, and fail-safe low-default outputs during VDDI power loss. Its logic accepts separate VIA/VIB inputs and includes an active-high EN pin for system-level safety shutdown.
This variant belongs to the Si8239x "UVLO Status" subgroup (Table 2.2): it provides output UVLO detection without enhanced UVLO feedback, supports 8 V output UVLO threshold, and offers UVLO status reporting via RDY pin-enabling controller-level fault monitoring without external sensing circuitry.
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 power systems. |
| Peak Output Current | 4.0 A - drives large gate capacitance MOSFETs/IGBTs directly without external buffers in 10–100 kHz switching applications. |
| VDDI Range | 2.5–5.5 V - interfaces natively with 3.3 V or 5 V microcontrollers and FPGA I/O without level-shifting. |
| Propagation Delay | 30 ns - ensures tight timing alignment between high-side and low-side drivers for precise dead-time control. |
| Output UVLO Threshold | 8 V - triggers automatic output disable when driver supply (VDDA/VDDB) drops below safe gate-drive voltage. |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free output initialization after VDDI stabilization, critical for transformer-coupled topologies. |
| CMTI | 100 kV/µs - rejects fast common-mode transients in noisy motor drive or inverter environments without false triggering. |
Pinout & Package
SI82395BB-IS1R is housed in a RoHS-compliant SOIC-16 narrow-body package (7.5 mm width), rated for 260 °C peak reflow, with creepage/clearance compliant to reinforced insulation standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Channel A input | TTL-compatible high-true logic input controlling VOA; referenced to GNDI. |
| VIB | Channel B input | TTL-compatible high-true logic input controlling VOB; referenced to GNDI. |
| EN | Enable control | Active-high global shutdown: forces both VOA and VOB low regardless of input state when pulled low. |
| GNDI | Input-side ground | Reference for VDDI, VIA, VIB, EN, and RDY; galvanically isolated from power-side grounds. |
| VDDI | Input-side supply | 2.5–5.5 V supply powering input logic, isolation barrier, and RDY output. |
| RDY | Ready status output | Open-drain digital flag indicating valid VDDI and absence of UVLO on either side; pulled up externally. |
| GND1 | Driver A ground | Power-side ground reference for VDDA and VOA; isolated from GNDI and GND2. |
| VDDA | Driver A supply | 10–24 V supply for high-side or low-side channel A output stage; monitored for 8 V UVLO. |
| VOA | Driver A output | 4.0 A capable push-pull output driving external MOSFET/IGBT gate; defaults low on VDDI loss or VDDA UVLO. |
| GND2 | Driver B ground | Power-side ground reference for VDDB and VOB; isolated from GNDI and GND1. |
| VDDB | Driver B supply | 10–24 V supply for second output stage; independently monitored for 8 V UVLO. |
| VOB | Driver B output | 4.0 A capable push-pull output; synchronized but electrically isolated from VOA; failsafe low on fault. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in single SOIC-16 NB package | Reduces PCB area and interconnect complexity vs. discrete optocoupler + driver solutions in half-bridge designs. |
| Enhanced output UVLO with RDY status feedback | Enables real-time monitoring of driver supply health at controller level-eliminates need for external voltage supervisors. |
| Fail-safe default-low outputs | Guarantees MOSFET/IGBT turn-off during VDDI loss or driver supply brownout-prevents shoot-through in bridge configurations. |
| 1 ms delayed safe startup | Ensures monotonic output behavior during power-up, preventing unintended gate pulses that could saturate transformers or cause inrush. |
| Programmable deglitch filter | Suppresses sub-50 ns noise spikes on inputs-improves reliability in EMI-heavy industrial motor drive environments. |
Applications
| Solar Inverters | Traction Inverters |
|---|---|
Use Scenario: Driving high-voltage IGBT half-bridges in string inverters interfacing PV arrays to grid. IC Role / Device Role / Timing Role: Isolated gate driver providing independent high-side/low-side control with UVLO fault reporting to MCU. Use Value: 5 kVRMS isolation meets IEC 62109 requirements; 4.0 A drive strength enables fast switching of 1200 V IGBTs at 16 kHz. |
Use Scenario: Controlling dual three-phase inverter legs in battery electric vehicle (BEV) powertrains. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering synchronized, fault-monitored gate signals to SiC MOSFETs. Use Value: 100 kV/µs CMTI prevents misfiring in high-dV/dt traction systems; AEC-Q100 qualification supports automotive deployment. |
| Industrial Motor Drives | Isolated DC-DC Converters |
Use Scenario: Gate driving power modules in variable-frequency drives (VFDs) for HVAC and pumps. IC Role / Device Role / Timing Role: High-current isolated driver enabling compact, thermally efficient half-bridge layouts. Use Value: 30 ns propagation delay minimizes timing skew between channels-critical for minimizing dead-time losses in 20 kHz PWM. |
Use Scenario: Driving synchronous rectifiers and primary-side switches in isolated flyback or forward converters. IC Role / Device Role / Timing Role: Dual isolated driver supporting transformer-coupled topologies with safe startup sequencing. Use Value: 1 ms delayed startup prevents flux imbalance during converter power-up; fail-safe low outputs protect against core saturation. |
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 electrical specs and pinout; packaged in SOIC-16 wide-body (WB) instead of narrow-body (NB). | Requires larger PCB footprint; better thermal dissipation in high-power continuous operation. | Select Si82395BD-IS when board layout allows wider SOIC and thermal margin is prioritized over space. |
| UCC5390SCD | TI part with 4 A drive, 5 kVRMS isolation, but no RDY pin or programmable deglitch; uses different UVLO architecture (no status feedback). | Lacks integrated UVLO status reporting-requires external supervisor for fault-aware control loops. | Choose UCC5390SCD only if RDY functionality is unused and TI ecosystem compatibility is required. |
Compared with SI82395BB-IS1R, Si82395BD-IS offers identical performance in a thermally superior wide-body package, while UCC5390SCD omits critical status feedback-making SI82395BB-IS1R preferable for safety-critical, fault-monitored systems like EV inverters and grid-tied solar.
Availability
SI82395BB-IS1R is available at Aetrix Electronics and suitable for solar inverters, traction inverters, and industrial motor drives requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for SI82395BB-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 engineered specifically for high-reliability isolated gate driving in power electronics-replacing aging optocoupler-based solutions with silicon-isolated drivers offering higher CMTI, tighter timing, and integrated safety features.
FAQ
What is the isolation voltage rating of SI82395BB-IS1R?
The SI82395BB-IS1R is rated for 5 kVRMS isolation withstand voltage per UL 1577 and IEC62368-1, supporting reinforced insulation in AC mains-connected equipment. This rating applies across the full operating temperature range (–40°C to +125°C) and is validated for 1 minute per safety certification requirements. SI82395BB-IS1R achieves this using Skyworks' monolithic RF-based silicon isolation barrier-not discrete capacitors or optocouplers.
Does SI82395BB-IS1R support bootstrap power supply for high-side driver operation?
No-SI82395BB-IS1R does not support bootstrap power for its high-side driver. It requires two independent, isolated 10–24 V supplies (VDDA and VDDB) referenced to their respective grounds (GND1 and GND2). Bootstrap configurations violate the independent supply requirement for UVLO monitoring and can cause undefined behavior or failure to exit UVLO. SI82395BB-IS1R must be used with fully isolated auxiliary supplies or dedicated isolated DC-DC converters for each driver rail.
How does the RDY pin function on SI82395BB-IS1R?
The RDY pin on SI82395BB-IS1R is an open-drain status output that goes high-impedance when VDDI is valid and neither VDDA nor VDDB is in UVLO. It pulls low internally if VDDI drops below UVLO– or if either driver supply falls below its 8 V UVLO threshold. An external pull-up resistor (typically 4.7 kΩ to VDDI) is required. This enables direct MCU GPIO monitoring of overall driver readiness-eliminating need for discrete voltage supervisors in SI82395BB-IS1R-based designs.
What is the purpose of the 1 ms delayed startup time in SI82395BB-IS1R?
The 1 ms delayed startup time in SI82395BB-IS1R ensures monotonic, glitch-free output behavior during power-up: VOA and VOB remain low until VDDI has stabilized and internal logic has completed initialization. This prevents spurious gate pulses that could cause transformer saturation in forward/flyback converters or shoot-through in half-bridge topologies. The delay is fixed and inherent to SI82395BB-IS1R's internal architecture-no external components are needed to configure it.
Is SI82395BB-IS1R qualified for automotive applications?
SI82395BB-IS1R is an industrial-grade part (suffix "-I"). Its automotive-grade counterpart is SI82395BB-AS1, which shares identical electrical specifications and pinout but is manufactured using full AEC-Q100-compliant automotive process flows, including AIAG PPAP documentation, IMDS/CAMDS compliance, and zero-defect methodology. SI82395BB-IS1R itself is not AEC-Q100 qualified and should not be used in safety-critical automotive systems unless explicitly validated and approved by the end-customer's qualification team.
SI82395BB-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:
- 10V ~ 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
SI82395BB-IS1R FAQ
1.How can I place an order for SI82395BB-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395BB-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 SI82395BB-IS1R reliable?
The price and inventory of SI82395BB-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395BB-IS1R is usually 5 days.
3.What payment methods are accepted for SI82395BB-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395BB-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395BB-IS1R?
SI82395BB-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395BB-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 SI82395BB-IS1R?
For technical support, including SI82395BB-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395BB-IS1R requirements.
6.How does Aetrix verify that SI82395BB-IS1R is sourced from the original manufacturer or authorized distributors?
All SI82395BB-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 SI82395BB-IS1R meets industry standards.
7.What is the process for return or replacement of SI82395BB-IS1R?
All SI82395BB-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82395BB-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 SI82395BB-IS1R part is unused and in its original packaging.
Return procedure for SI82395BB-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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