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Skyworks Solutions Inc. SI82395BD-IS3
- Part No.:
- SI82395BD-IS3
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82395BD-IS3.pdf
- Description:
- DGT ISO 3.25KV 2CH GT DVR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,406
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Product details
Overview
SI82395BD-IS3 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 SI82395BD-IS3 datasheet, SI82395BD-IS3 pinout, SI82395BD-IS3 application, or SI82395BD-IS3 equivalent, this page provides verified technical context, package mapping, functional safety features (EN pin, fail-safe low default, UVLO status), dead-time programmability (10–200 ns), and automotive-grade compatibility (AEC-Q100, SOIC-14 wide-body).
Technical Context
The SI82395BD-IS3 implements two independent isolated channels using Skyworks' proprietary RF-based silicon isolation barrier, enabling 100 kV/µs CMTI and eliminating optocoupler aging limitations. Each channel accepts separate TTL-compatible inputs (VIA, VIB) and drives high-side/low-side power switches with independent VDDA/VDDB supplies up to 24 V.
It integrates enhanced undervoltage lockout (UVLO) with status feedback via RDY pin, active-high EN for system-level safety shutdown, and programmable dead time (10–200 ns) to prevent shoot-through. Fail-safe operation defaults both outputs low during VDDI power-down or UVLO conditions - critical for motor control and DC-DC converter reliability.
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 systems. |
| Peak Output Current | 4.0 A - sufficient to rapidly charge/discharge high-Qg MOSFETs and IGBTs in <100 ns switching transitions. |
| Input Supply Range (VDDI) | 2.5 V–5.5 V - compatible with modern low-voltage microcontrollers and logic families without level-shifting. |
| Propagation Delay | 30 ns - ensures tight timing control in high-frequency (>100 kHz) power stages like SiC-based inverters. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments. |
| Dead Time Programmability | 10–200 ns - configurable via external resistor to match specific FET turn-on/turn-off asymmetry and prevent cross-conduction. |
| UVLO Threshold (VDDA/VDDB) | 8 V (typical) - prevents erratic switching during brown-out conditions in 12 V gate-drive rails. |
Pinout & Package
SI82395BD-IS3 is housed in a RoHS-compliant SOIC-14 wide-body package (7.5 mm body width, 10.3 mm length), optimized for creepage/clearance compliance in high-voltage applications. Pin spacing meets reinforced insulation requirements per IEC62368-1.
| Pin | 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 safety shutdown: forces both outputs low regardless of input state when asserted. |
| RDY | UVLO status output | Open-drain digital flag indicating valid VDDI and both VDDA/VDDB are above UVLO threshold. |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, RDY, and VDDI; galvanically isolated from power-side grounds. |
| VDDI | Input-side supply | 2.5 V–5.5 V logic supply powering internal isolation transmitter and control logic. |
| VOA | Channel A output | High-current gate driver output (4 A sink/source) for high-side or low-side switch; referenced to VDDA/GNDA. |
| VOB | Channel B output | High-current gate driver output (4 A sink/source) for complementary switch; referenced to VDDB/GNDB. |
| VDDA | Driver A supply | 10 V–24 V gate drive rail for VOA; monitored for UVLO with status feedback. |
| VDDB | Driver B supply | 10 V–24 V gate drive rail for VOB; independently monitored for UVLO with status feedback. |
| GNDA | Driver A ground | Return path for VOA and VDDA; isolated from GNDI and GNDB. |
| GNDB | Driver B ground | Return path for VOB and VDDB; isolated from GNDI and GNDA. |
| NC | No connect | Internally unused pin; must remain unconnected per datasheet layout guidelines. |
| NC | No connect | Internally unused pin; must remain unconnected per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in single SOIC-14 WB | Reduces PCB area and component count vs. discrete optocoupler + driver solutions; eliminates inter-channel skew. |
| Enhanced UVLO with RDY status feedback | Enables controller-level fault detection and safe sequencing - RDY goes low if either VDDA or VDDB drops below 8 V. |
| Fail-safe default-low outputs | Both VOA and VOB drive low during VDDI power loss or UVLO, preventing unintended power device conduction. |
| Programmable dead time (10–200 ns) | Configurable via single external resistor to match FET timing asymmetry and eliminate shoot-through in half-bridge topologies. |
| 1 ms delayed safe startup | Ensures monotonic output behavior after power-up - prevents glitch-induced switching before controller initialization completes. |
| AEC-Q100 qualified (automotive-grade option) | Validated for automotive applications including on-board chargers and traction inverters; supported by AIAG PPAP documentation. |
Applications
| Solar Inverter Half-Bridge Control | Traction Inverter High-Side/Low-Side Drive |
|---|---|
Use Scenario: Driving complementary IGBTs in a 3-phase inverter stage of a 10 kW photovoltaic string inverter operating at 16 kHz switching frequency. IC Role / Device Role / Timing Role: SI82395BD-IS3 provides isolated, high-current gate drive with synchronized dead time and UVLO monitoring for each leg's high-side and low-side devices. Use Value: 30 ns propagation delay and 100 kV/µs CMTI ensure clean switching under high dv/dt noise in transformerless PV architectures. |
Use Scenario: Controlling parallel SiC MOSFETs in the motor phase legs of an EV traction inverter, where thermal stress and EMI immunity are critical. IC Role / Device Role / Timing Role: SI82395BD-IS3 serves as the isolated gate driver with fail-safe low default and RDY status reporting to the vehicle MCU during startup and fault conditions. Use Value: 4.0 A peak drive current enables fast SiC gate charging; AEC-Q100 qualification supports ASIL-B system integration. |
| Industrial Isolated DC-DC Converter | Battery Management System (BMS) Active Balancing |
Use Scenario: Gate driving synchronous rectifiers in a 1 kW isolated flyback converter for factory automation equipment. IC Role / Device Role / Timing Role: SI82395BD-IS3 isolates control logic from secondary-side 48 V rail while delivering precise timing and UVLO protection for both rectifier FETs. Use Value: Independent VDDA/VDDB UVLO monitoring prevents asymmetric conduction that could cause transformer saturation. |
Use Scenario: Driving external N-channel MOSFETs for cell-level active balancing in a 96-cell lithium-ion battery pack. IC Role / Device Role / Timing Role: SI82395BD-IS3 provides galvanically isolated gate control from the BMS controller across multiple voltage domains, with EN pin enabling centralized fault shutdown. Use Value: SOIC-14 wide-body package meets IPC-2221 creepage requirements for >600 V working voltage between cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated dual gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si82395BD-IS1 | SOIC-16 narrow-body package (3.9 mm width); identical electrical specs and pinout except for two additional NC pins. | Preferred where board space is constrained but creepage requirements are less stringent than SOIC-14 WB. | Select SI82395BD-IS1 only if layout allows narrower footprint and no reinforced insulation certification is required. |
| Si82395BD-AS3 | Automotive-grade variant: AEC-Q100 qualified, manufactured with automotive process flows, includes PPAP/IMDS support. | Mandatory for OEM automotive programs; supports extended temperature validation and zero-defect methodology. | Choose SI82395BD-AS3 for traction inverters or on-board chargers where automotive qualification is contractually required. |
Compared with SI82395BD-IS1 and SI82395BD-AS3, the SI82395BD-IS3 offers the widest creepage (≥8.0 mm) in SOIC-14 WB format - making it optimal for industrial inverters needing IEC62368-1 reinforced insulation without redesigning layout for SOIC-16 NB or qualifying automotive processes.
Availability
SI82395BD-IS3 is available at Aetrix Electronics and suitable for solar inverters, traction inverters, and isolated DC-DC power supplies requiring stable component supply, long-term lifecycle support, and certified isolation performance.
Supply support for SI82395BD-IS3 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 to replace aging optocoupler-based gate drivers in high-reliability power systems - delivering higher CMTI, lower propagation delay, and integrated safety features like UVLO feedback and fail-safe outputs.
FAQ
What is the isolation voltage rating of the SI82395BD-IS3?
The SI82395BD-IS3 is rated for 5 kVRMS isolation withstand voltage per UL 1577 and IEC60950-1, supporting reinforced insulation in AC mains-connected equipment. This rating is validated for 1 minute at 50/60 Hz and applies across the full operating temperature range (–40 °C to +125 °C). The isolation barrier uses Skyworks' proprietary RF-based silicon technology, not optical coupling.
Does the SI82395BD-IS3 support independent UVLO monitoring for each output channel?
Yes, the SI82395BD-IS3 monitors VDDA and VDDB independently for undervoltage lockout. When either supply falls below its 8 V UVLO threshold, the corresponding output (VOA or VOB) is forced low, and the RDY pin deasserts to signal the fault condition to the controller. This behavior is confirmed in Table 2.2 of the Si8239x datasheet for "Si82392/5/6 Drivers with UVLO Status".
What is the purpose of the RDY pin on the SI82395BD-IS3?
RDY is an open-drain status output that indicates valid operation: it asserts high only when VDDI is above its UVLO threshold *and* both VDDA and VDDB are above their respective 8 V UVLO thresholds. If any supply fails, RDY pulls low - enabling the system controller to halt PWM generation before unsafe switching occurs. This function is integral to the SI82395BD-IS3's enhanced safety architecture.
Can the SI82395BD-IS3 be used with bootstrap gate drive circuits?
No - the SI82395BD-IS3 must not be used with bootstrap configurations for VDDA or VDDB. Its enhanced UVLO feedback mechanism requires independent, regulated supplies for each driver channel. Bootstrap circuits create shared or coupled VDD rails, which violate the independent monitoring requirement and may cause false UVLO triggering or loss of status feedback integrity.
What dead time ranges does the SI82395BD-IS3 support, and how is it configured?
The SI82395BD-IS3 supports programmable dead time from 10 ns to 200 ns, set via a single external resistor connected to the DT pin. The resistor value determines the delay between VOA turn-off and VOB turn-on (and vice versa) to prevent shoot-through in half-bridge topologies. Configuration details and resistor values are provided in Section 2.7 ("Overlap Protection and Programmable Dead Time") of the datasheet.
SI82395BD-IS3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 2
- Voltage - Isolation:
- 3250Vrms
- 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:
- 14-SOIC
- Approval Agency:
- CQC, CSA, UR, VDE
SI82395BD-IS3 FAQ
1.How can I place an order for SI82395BD-IS3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395BD-IS3 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-IS3 reliable?
The price and inventory of SI82395BD-IS3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395BD-IS3 is usually 5 days.
3.What payment methods are accepted for SI82395BD-IS3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395BD-IS3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395BD-IS3?
SI82395BD-IS3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395BD-IS3 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-IS3?
For technical support, including SI82395BD-IS3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395BD-IS3 requirements.
6.How does Aetrix verify that SI82395BD-IS3 is sourced from the original manufacturer or authorized distributors?
All SI82395BD-IS3 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-IS3 meets industry standards.
7.What is the process for return or replacement of SI82395BD-IS3?
All SI82395BD-IS3 units undergo pre-shipment inspection (PSI). If there is an issue with SI82395BD-IS3, 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-IS3 part is unused and in its original packaging.
Return procedure for SI82395BD-IS3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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