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Skyworks Solutions Inc. SI82395CB-AS1R
- Part No.:
- SI82395CB-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82395CB-AS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,799
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Product details
Overview
SI82395CB-AS1R from Skyworks Solutions is an automotive-grade dual isolated gate driver IC designed for high-side/low-side MOSFET/IGBT control in traction inverters and on-board chargers. It delivers 4.0 A peak output current, operates with 2.5–5.5 V input supply (VDDI), supports 5 kVRMS isolation, and features enhanced UVLO with status feedback and 1 ms safe delayed startup.
For engineers reviewing the SI82395CB-AS1R datasheet, SI82395CB-AS1R pinout, SI82395CB-AS1R application, or SI82395CB-AS1R equivalent, key selection considerations include its AEC-Q100 qualification, SOIC-16 narrow-body package, programmable dead time (10–200 ns), 30 ns propagation delay, and fail-safe default-low outputs during VDDI power-down.
Technical Context
The SI82395CB-AS1R implements two independent isolated driver channels using Skyworks' proprietary RF-based silicon isolation barrier, enabling robust 100 kV/µs CMTI and eliminating LED aging concerns of optocouplers. Its architecture supports independent VIA/VIB inputs with separate driver-side supplies (VDDA/VDDB) and includes integrated UVLO monitoring per output rail.
This variant belongs to the Si8239x "enhanced UVLO with status pin" subgroup (per Table 2.2), confirming active UVLO status feedback via RDY pin, no output UVLO fault detection (unlike Si82390/1/3), and absence of deglitch filtering. It is configured as a dual-driver (not PWM-input) with 12 V output UVLO threshold and no programmable dead time beyond the base 10–200 ns range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC62368-1 and VDE 0884-10 for safety-critical automotive power stages. |
| Peak Output Current | 4.0 A - drives high-gate-charge IGBTs/MOSFETs in 400–800 V traction inverters without external buffers. |
| Input Supply Range | 2.5–5.5 V VDDI - interfaces directly with 3.3 V or 5 V microcontrollers and supports low-voltage MCU domains. |
| Propagation Delay | 30 ns - ensures tight timing control in >100 kHz switching applications like SiC-based OBCs and inverters. |
| UVLO Threshold | 12 V on VDDA/VDDB - prevents erratic switching during brown-out conditions in 12 V auxiliary power rails. |
| Startup Delay | 1 ms typical - guarantees monotonic, glitch-free initialization sequence before first output transition. |
| Operating Temperature | –40 to +125 °C - meets under-hood and power module thermal requirements for BEV/HEV systems. |
| AEC-Q100 Grade | Qualified to Grade 1 - validated for automotive powertrain applications with zero-defect manufacturing flow. |
Pinout & Package
SI82395CB-AS1R uses a RoHS-compliant SOIC-16 narrow-body package (5.3 mm width), optimized for high-density automotive PCB layouts and compatible with standard JEDEC reflow profiles (260 °C peak).
| 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 input | Active-high global shutdown: forces both outputs low within tSD when asserted. |
| VDDI | Input-side supply | 2.5–5.5 V power for isolation barrier and input logic; powers internal oscillator. |
| GNDI | Input-side ground | Reference for VIA, VIB, EN, VDDI, and RDY; galvanically isolated from power side. |
| RDY | UVLO status output | Open-drain digital flag indicating valid VDDI and both VDDA/VDDB are above UVLO threshold. |
| VDDA | Driver A supply | 10–24 V supply for high-side or low-side channel A output stage (VOA). |
| VOA | Output A | 4.0 A peak source/sink driver output; defaults low if VDDI unpowered or VDDA < 12 V. |
| GND1 | Driver A ground | Power ground for VDDA/VOA; isolated from GNDI and GND2. |
| VDDB | Driver B supply | 10–24 V supply for complementary channel B output stage (VOB). |
| VOB | Output B | 4.0 A peak source/sink driver output; defaults low if VDDI unpowered or VDDB < 12 V. |
| GND2 | Driver B ground | Power ground for VDDB/VOB; isolated from GNDI and GND1. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unused; must remain unconnected per datasheet. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unused; must remain unconnected per datasheet. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unused; must remain unconnected per datasheet. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unused; must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Fail-safe default-low outputs | VOA and VOB drive low when VDDI is absent - prevents unintended power device turn-on during system reset or cold start. |
| Enhanced UVLO with RDY feedback | RDY pin asserts only when VDDI, VDDA, and VDDB all exceed thresholds - enables precise system-level power sequencing. |
| 1 ms safe delayed startup | Guarantees monotonic output behavior from power-on until stable operation - eliminates startup glitches in critical motor control loops. |
| High CMTI immunity | 100 kV/µs common-mode transient immunity - maintains signal integrity in noisy high-dv/dt inverter environments. |
| Automotive process flow | Manufactured with AIAG-compliant PPAP, IMDS/CAMDS listings, and zero-defect methodology - meets OEM Tier-1 traceability requirements. |
| Reinforced isolation certification | UL 1577, VDE 0884-10, IEC62368-1 certified - satisfies functional safety requirements for ASIL-B/C power stage isolation. |
Applications
| On-board Charger (OBC) | Traction Inverter |
|---|---|
Use Scenario: Isolated gate driving for bidirectional AC/DC and DC/DC conversion stages in 11–22 kW EV chargers. IC Role / Device Role / Timing Role: Dual-channel isolated driver controlling high-side/low-side SiC MOSFETs in interleaved totem-pole PFC and isolated LLC resonant converters. Use Value: 30 ns propagation delay and 4.0 A drive strength enable >150 kHz switching with minimal dead-time loss and reduced gate losses. |
Use Scenario: Driving IGBTs or SiC modules in 3-phase motor inverters for battery electric vehicles. IC Role / Device Role / Timing Role: High-reliability isolated gate driver for phase-leg half-bridges, providing independent UVLO monitoring per switch leg. Use Value: AEC-Q100 Grade 1 qualification and 125 °C operation ensure long-term stability in under-hood power module environments. |
| Battery Management System (BMS) | Industrial Solar Inverter |
Use Scenario: Controlling contactor pre-charge and main isolation switches in high-voltage battery packs (400–900 V). IC Role / Device Role / Timing Role: Fail-safe isolated driver ensuring contactors remain de-energized during MCU boot or communication loss. Use Value: Default-low outputs and RDY status feedback provide deterministic power-up behavior required for ISO 26262 ASIL-C diagnostics. |
Use Scenario: Gate driving for string-level MPPT boost stages and grid-tie H-bridge inverters in commercial solar farms. IC Role / Device Role / Timing Role: Dual isolated driver enabling compact, high-efficiency 1000 V+ DC link designs with reinforced insulation. Use Value: 5 kVRMS isolation and VDE/UL certifications eliminate need for external isolation components, reducing BOM cost and footprint. |
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 |
|---|---|---|---|
| Si82395CD-AS | SOIC-16 wide-body package (7.5 mm width); identical electrical specs and AEC-Q100 qualification. | Requires larger PCB footprint; better thermal dissipation in high-power density designs with forced air cooling. | Select when board layout allows wider spacing or thermal performance outweighs space constraints. |
| UCC5390SCDR | Texas Instruments part with 4 A drive, but only 3.75 kVRMS isolation and no RDY status pin; not AEC-Q100 qualified. | Limited to industrial-grade inverters or non-safety-critical auxiliary power supplies. | Choose only for cost-sensitive industrial applications where automotive qualification and enhanced UVLO feedback are unnecessary. |
Compared with SI82395CB-AS1R, Si82395CD-AS offers identical functionality in a thermally superior but larger package, while UCC5390SCDR lacks automotive qualification, reinforced isolation, and UVLO status reporting-making it unsuitable for ASIL-B/C traction systems.
Availability
SI82395CB-AS1R is available at Aetrix Electronics and suitable for traction inverters, on-board chargers, and battery management systems requiring stable component supply across automotive production lifecycles.
Supply support for SI82395CB-AS1R 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 semiconductors, specializing in high-performance RF, isolation, and precision timing solutions for wireless, automotive, and industrial markets.
The Si8239x family was engineered specifically for next-generation electric vehicle power electronics, delivering silicon-isolated gate drivers that replace aging optocoupler-based solutions with higher reliability, tighter timing, and automotive-grade robustness.
FAQ
What is the isolation voltage rating of the SI82395CB-AS1R?
The SI82395CB-AS1R is rated for 5 kVRMS isolation withstand voltage per UL 1577 and VDE 0884-10 standards. This reinforced insulation rating applies across the full operating temperature range (–40 to +125 °C) and supports safety-critical automotive applications including traction inverters and on-board chargers where galvanic separation between control and power domains is mandatory.
Does the SI82395CB-AS1R support programmable dead time?
Yes, the SI82395CB-AS1R supports programmable dead time in the range of 10–200 ns. This feature is implemented via external RC networks on dedicated pins and is used to prevent shoot-through in half-bridge configurations. Unlike Si82394/8 variants, SI82395CB-AS1R does not support the extended 40–600 ns range, and its dead-time configuration is fixed to the base range per datasheet Table 1.1.
How does the RDY pin function on the SI82395CB-AS1R?
The RDY pin on the SI82395CB-AS1R is an open-drain status output that goes high only when VDDI, VDDA, and VDDB are all above their respective UVLO thresholds. It provides system-level confirmation of valid power sequencing before enabling gate drive signals. The RDY pin remains low during startup until the 1 ms delayed initialization completes, ensuring reliable synchronization with MCU firmware boot sequences.
Is the SI82395CB-AS1R pin-compatible with other Si8239x variants?
No, SI82395CB-AS1R is not universally pin-compatible across the Si8239x family. While it shares the SOIC-16 narrow-body footprint with Si82395AB-AS1 and Si82395BB-AS1, pin functions differ for variants with deglitching (e.g., Si82393CD-AS) or PWM input (e.g., Si82394CD-AS). Always verify pin mapping against the specific variant's datasheet section "6. Pin Descriptions" before substitution.
What is the maximum operating junction temperature for the SI82395CB-AS1R?
The SI82395CB-AS1R has a maximum junction temperature (Tjmax) of 150 °C, as specified in Table 4.8 of the datasheet. This rating is supported by its SOIC-16 narrow-body package with a junction-to-air thermal resistance (θja) of 59 °C/W. At 25 °C ambient, the device can dissipate up to 2.12 W before reaching Tjmax - sufficient for typical 4 A gate drive loads in automotive power modules.
SI82395CB-AS1R 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):
- 135ns, 95ns
- 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, UL, VDE
SI82395CB-AS1R FAQ
1.How can I place an order for SI82395CB-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82395CB-AS1R 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 SI82395CB-AS1R reliable?
The price and inventory of SI82395CB-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82395CB-AS1R is usually 5 days.
3.What payment methods are accepted for SI82395CB-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82395CB-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82395CB-AS1R?
SI82395CB-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82395CB-AS1R 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 SI82395CB-AS1R?
For technical support, including SI82395CB-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82395CB-AS1R requirements.
6.How does Aetrix verify that SI82395CB-AS1R is sourced from the original manufacturer or authorized distributors?
All SI82395CB-AS1R 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 SI82395CB-AS1R meets industry standards.
7.What is the process for return or replacement of SI82395CB-AS1R?
All SI82395CB-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82395CB-AS1R, 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 SI82395CB-AS1R part is unused and in its original packaging.
Return procedure for SI82395CB-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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