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Skyworks Solutions Inc. SI82395BD-IS
- Part No.:
- SI82395BD-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82395BD-IS.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,270
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Product details
Overview
SI82395BD-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 2.5–5.5 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 industrial inverters and motor drives requiring robust isolation and fault resilience.
For engineers reviewing the SI82395BD-IS datasheet, SI82395BD-IS pinout, SI82395BD-IS application, or SI82395BD-IS equivalent, key selection criteria include its SOIC-16 wide-body package, independent VIA/VIB inputs, 8 V output UVLO threshold, programmable dead time (10–200 ns), and AEC-Q100-qualified automotive-grade variant availability.
Technical Context
The SI82395BD-IS implements RF-based silicon isolation with a proprietary carrier-modulated architecture-replacing optocoupler-based signal transfer-enabling 100 kV/µs CMTI, 30 ns propagation delay, and low skew. Its dual-channel structure supports independent high-side/low-side gate drive with separate input pins (VIA, VIB) and isolated power domains (VDDA, VDDB).
It integrates fail-safe logic: outputs default low during VDDI power-down; EN (active-high) forces both outputs low unconditionally; RDY pin signals valid operation after 1 ms startup delay; and enhanced UVLO monitors VDDA/VDDB independently, feeding fault status back across the isolation barrier for system-level fault handling.
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 - sufficient to rapidly charge/discharge high-Qg MOSFETs and IGBTs in hard-switching topologies. |
| VDDI Range | 2.5 V to 5.5 V - compatible with modern low-voltage microcontrollers and logic interfaces without level-shifting. |
| Output UVLO Threshold | 8 V - ensures gate drivers disable before power devices enter linear region, preventing thermal runaway. |
| Propagation Delay | 30 ns - enables precise timing control in high-frequency (>100 kHz) switching applications like solar inverters. |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free output initialization during system power-up sequences. |
| Operating Temperature | –40 °C to +125 °C - supports deployment in harsh industrial and automotive under-hood environments. |
Pinout & Package
SI82395BD-IS is housed in a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with creepage/clearance optimized for reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Input A logic signal | TTL-compatible high-true control for output VOA; referenced to GNDI. |
| VIB | Input B logic signal | TTL-compatible high-true control for output VOB; referenced to GNDI. |
| EN | Enable input | Active-high safety shutdown: forces both VOA and VOB low regardless of VIA/VIB state. |
| VDDI | Input-side supply | 2.5–5.5 V power for isolation transmitter and logic; UVLO monitored at 2.3 V (typ). |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, VDDI, and RDY; galvanically isolated from power side. |
| 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 output stage A; UVLO threshold = 8 V. |
| VOA | Output A driver | 4 A sink/source capable gate driver referenced to GND1; failsafe low on VDDA UVLO. |
| GND1 | Driver A ground | Power-side return for VDDA and VOA; isolated from GNDI and GND2. |
| VDDB | Driver B supply | 10–24 V supply for second output stage B; UVLO threshold = 8 V, independent of VDDA. |
| VOB | Output B driver | 4 A sink/source capable gate driver referenced to GND2; failsafe low on VDDB UVLO. |
| GND2 | Driver B ground | Power-side return for VDDB and VOB; isolated from GNDI and GND1. |
| NC | No connect | Two pins (pins 1 & 16) are internally unused and must remain unconnected per datasheet. |
| NC | No connect | Two pins (pins 1 & 16) are internally unused and must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers | Two fully independent 4 A gate drivers with separate VDDA/VDDB supplies and isolated grounds-enables asymmetric half-bridge or dual half-bridge configurations. |
| Enhanced UVLO with feedback | Monitors VDDA and VDDB independently and feeds fault status across isolation barrier to input logic-prevents transformer flux imbalance in isolated DC-DC converters. |
| Programmable dead time | 10–200 ns range via external resistor-allows precise overlap prevention between high-side and low-side switches without external timing circuitry. |
| Fail-safe default-low outputs | VOA and VOB drive low when VDDI is absent or during UVLO-eliminates risk of shoot-through during power sequencing or brownout. |
| 1 ms delayed startup | Guaranteed monotonic output behavior after VDDI valid-simplifies system-level initialization and avoids transient glitches in critical power stages. |
Applications
| Motor Control Systems | Solar and Industrial Inverters |
|---|---|
Use Scenario: Driving high-side/low-side IGBTs in three-phase BLDC or PMSM motor drives for HVAC, pumps, and industrial automation. IC Role / Device Role / Timing Role: Isolated gate driver providing independent, synchronized control of upper/lower switches with programmable dead time to prevent shoot-through. Use Value: 4.0 A peak drive current ensures fast turn-on/turn-off of high-Ciss IGBTs; 100 kV/µs CMTI prevents false triggering in noisy EMI environments near motors. | Use Scenario: Controlling SiC MOSFETs in string-level solar inverters and grid-tied energy storage systems. IC Role / Device Role / Timing Role: High-speed isolated driver enabling >50 kHz switching with precise timing alignment and fault reporting via RDY and UVLO status. Use Value: 30 ns propagation delay and <1 ns skew ensure tight PWM fidelity; 5 kVRMS isolation meets IEC62109 and UL1741 safety requirements. |
| Isolated DC-DC Power Supplies | Battery Management Systems |
Use Scenario: Driving synchronous rectifiers and primary-side switches in isolated flyback, forward, or LLC resonant converters. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering matched timing and UVLO feedback to protect transformer core from saturation during startup or fault. Use Value: Enhanced UVLO status feedback prevents flux walk in transformers; 1 ms safe startup eliminates output transients during converter soft-start. | Use Scenario: Controlling high-side N-channel MOSFETs in active balancing circuits and contactor drivers within EV battery packs. IC Role / Device Role / Timing Role: Robust isolated driver with fail-safe low outputs and AEC-Q100 qualification for functional safety-critical BMS subsystems. Use Value: –40 °C to +125 °C operation supports under-hood placement; 8 V UVLO threshold aligns with 12 V auxiliary rail monitoring in automotive BMS. |
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 |
|---|---|---|---|
| Si82395AD-IS | Same SOIC-16 WB package and pinout; 6 V output UVLO threshold instead of 8 V. | Preferred where lower UVLO threshold better matches 10 V gate drive rails or legacy 12 V systems with tighter tolerance. | Select when system-level VDDA/VDDB regulation has higher dropout or requires earlier fault detection at lower voltage. |
| Si82395CD-IS | Same SOIC-16 WB package and pinout; 12 V output UVLO threshold instead of 8 V. | Suitable for 15–24 V gate drive systems where higher UVLO prevents nuisance shutdown during transient dips. | Choose for high-voltage industrial inverters or traction applications where gate supply stability is critical above 12 V. |
Compared with SI82395AD-IS and SI82395CD-IS, the SI82395BD-IS provides an optimal 8 V UVLO threshold for 12 V gate drive systems-balancing early fault detection against immunity to nominal supply ripple-while retaining identical timing, isolation, and packaging.
Availability
SI82395BD-IS is available at Aetrix Electronics and suitable for motor control systems, solar inverters, and isolated DC-DC power supplies requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.
Supply support for SI82395BD-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 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-replacing aging optocouplers with silicon-isolated drivers offering superior CMTI, timing accuracy, and lifetime stability.
FAQ
What is the UVLO threshold for the output supplies of the SI82395BD-IS?
The SI82395BD-IS features an 8 V output undervoltage lockout (UVLO) threshold for both VDDA and VDDB. When either supply falls below 8 V, the corresponding output (VOA or VOB) is actively driven low to prevent partial device turn-on and potential thermal damage. This threshold is fixed per the part number's ordering guide and differs from SI82395AD-IS (6 V) and SI82395CD-IS (12 V).
Does the SI82395BD-IS support programmable dead time, and how is it configured?
Yes, the SI82395BD-IS supports programmable dead time in the 10–200 ns range. It is configured using a single external resistor connected between the DT pin and GNDI. The exact value is determined by the resistor's resistance per the datasheet's DT vs. RDT curve. No additional components or digital interface are required-making it ideal for space-constrained, cost-sensitive power designs.
What is the purpose of the RDY pin on the SI82395BD-IS, and how should it be used?
The RDY pin on the SI82395BD-IS is an open-drain status output that goes high (pulled up externally) only after VDDI exits UVLO *and* the 1 ms safe startup delay completes. It signals to the host controller that VOA and VOB are ready for valid input control. Engineers use RDY to synchronize PWM enable signals or initiate system-level initialization sequences-ensuring deterministic, glitch-free power stage activation.
Can the SI82395BD-IS be used with bootstrap gate drive circuits?
No-the SI82395BD-IS (and all Si82390/1/3/5/6 variants) must not be used with bootstrap gate drive circuits. Its enhanced UVLO feedback mechanism requires independent, regulated VDDA and VDDB supplies. Bootstrap configurations cause coupled voltage dependencies that violate the UVLO monitoring logic and may lead to unpredictable output behavior or failure to detect faults. Use dedicated isolated DC-DC supplies for each driver channel.
Is the SI82395BD-IS qualified for automotive applications, and what certifications does it hold?
The SI82395BD-IS is an industrial-grade part, but its automotive-grade counterpart SI82395BD-AS is AEC-Q100 qualified and supported with AIAG-compliant PPAP documentation, IMDS/CAMDS listings, and full automotive process flows. While SI82395BD-IS itself carries no AEC-Q100 certification, its electrical parameters, package, and construction are identical to the AS version-making it suitable for non-safety-critical automotive prototyping or industrial applications demanding automotive-grade robustness.
SI82395BD-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:
- 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
SI82395BD-IS FAQ
1.How can I place an order for SI82395BD-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395BD-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 SI82395BD-IS reliable?
The price and inventory of SI82395BD-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395BD-IS is usually 5 days.
3.What payment methods are accepted for SI82395BD-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395BD-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395BD-IS?
SI82395BD-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395BD-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 SI82395BD-IS?
For technical support, including SI82395BD-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395BD-IS requirements.
6.How does Aetrix verify that SI82395BD-IS is sourced from the original manufacturer or authorized distributors?
All SI82395BD-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 SI82395BD-IS meets industry standards.
7.What is the process for return or replacement of SI82395BD-IS?
All SI82395BD-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI82395BD-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 SI82395BD-IS part is unused and in its original packaging.
Return procedure for SI82395BD-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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