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Skyworks Solutions Inc. SI82398CB4-IS1R
- Part No.:
- SI82398CB4-IS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82398CB4-IS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,919
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Product details
Overview
SI82398CB4-IS1R from Skyworks Solutions is a dual-channel isolated gate driver IC designed for high-side/low-side MOSFET/IGBT control in power converters. It features 4.0 A peak output current, 12 V output UVLO threshold, programmable dead time (40–600 ns), deglitch filtering, and operates with 2.5–5.5 V input supply (VDDI). It drives traction inverters and on-board chargers requiring reinforced isolation and fail-safe startup.
For engineers reviewing the SI82398CB4-IS1R datasheet, SI82398CB4-IS1R pinout, SI82398CB4-IS1R application, or SI82398CB4-IS1R equivalent, key selection criteria include its PWM-input architecture, automotive-grade qualification (AEC-Q100), SOIC-16 wide-body package, 5 kVRMS isolation, and enhanced UVLO with no status pin - critical for reliable motor drive and EV power systems.
Technical Context
The SI82398CB4-IS1R implements a single-PWM-input, high-side/low-side driver topology using RF-based silicon isolation. Its internal architecture includes independent undervoltage lockout (UVLO) monitoring per output channel (VDDA/VDDB), fail-safe default-low outputs during VDDI power-down, and EN pin control with 100 kΩ external pull-down requirement.
It supports programmable dead time (40–600 ns) and deglitch filtering to suppress noise-induced false triggering. Unlike Si82390/1/3 variants, it lacks UVLO status feedback and RDY pin - confirmed by Table 2.4 and Ordering Guide entries for "Si82398xx" with "UVLO Status Pin = No" and "Enhanced UVLO = Yes".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC 62368-1 and VDE 0884-10 for safety-critical EV and industrial power systems. |
| Output Drive Current | 4.0 A peak sink/source - sufficient to directly drive high-gate-charge IGBTs and SiC MOSFETs in 10–24 V gate-drive applications. |
| UVLO Threshold | 12 V on VDDA/VDDB - prevents erroneous switching during brown-out conditions in high-voltage motor control rails. |
| Dead Time Range | 40–600 ns programmable - allows precise overlap prevention between high-side and low-side switches in half-bridge topologies. |
| Propagation Delay | 30 ns typical - ensures tight timing control and minimal skew between channels for high-frequency (>100 kHz) PWM operation. |
| Input Supply Range | 2.5–5.5 V VDDI - compatible with modern low-voltage microcontrollers and FPGA I/O without level-shifting. |
| CMTI | 100 kV/µs - rejects fast transient noise in noisy power-converter environments, reducing need for external filtering. |
Pinout & Package
SI82398CB4-IS1R is housed in a RoHS-compliant SOIC-16 wide-body package (7.5 mm body width, 10.3 mm length), rated for 260 °C peak reflow per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Input ground reference | Input-side GND - must be connected to controller ground; forms isolation barrier reference for RF transmitter. |
| VIB | Input power supply | Input-side VDDI (2.5–5.5 V) - powers internal logic, oscillator, and EN circuitry; requires local 1 µF + 0.1 µF decoupling. |
| PWM | Control input | Single TTL-compatible PWM signal - high = VOA high / VOB low; low = VOA low / VOB high; no internal pull-up/down. |
| EN | Enable input | Active-high enable - must be pulled down to GNDI via 100 kΩ resistor when unused; forces both outputs low when low. |
| GND1 | Driver-side ground A | High-side driver return - connects to source of high-side MOSFET; referenced to VDDA for UVLO monitoring. |
| VDDA | Driver supply A | High-side gate drive supply (10–24 V) - powers high-side output stage; monitored for 12 V UVLO. |
| VOA | High-side output | Push-pull gate driver output - 4.0 A peak, RDS(ON) = 2.7 Ω (pull-up) / 1 Ω (pull-down); defaults low if VDDI or VDDA lost. |
| GND2 | Driver-side ground B | Low-side driver return - connects to source of low-side MOSFET; referenced to VDDB for UVLO monitoring. |
| VDDB | Driver supply B | Low-side gate drive supply (10–24 V) - powers low-side output stage; monitored for 12 V UVLO. |
| VOB | Low-side output | Push-pull gate driver output - identical specs to VOA; complements VOA under PWM control with programmable dead time. |
| NC | No connect | Pins 1, 2, 15, 16 - internally unconnected; must remain floating or grounded per layout guidelines to avoid coupling. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based silicon isolation | Enables 5 kVRMS rating and 100 kV/µs CMTI without LED aging or temperature drift - superior long-term reliability vs optocouplers. |
| Fail-safe default-low outputs | VOA and VOB automatically drive low during VDDI power loss or EN deactivation - prevents shoot-through in half-bridge configurations. |
| Programmable dead time | 40–600 ns range set externally - eliminates need for discrete RC networks and enables dynamic adjustment for varying load conditions. |
| Deglitch filtering | Hardware noise suppression on PWM input - rejects sub-50 ns transients without software intervention or additional components. |
| AEC-Q100 qualified | Automotive-grade manufacturing flow with AIAG PPAP, IMDS/CAMDS support - validated for on-board chargers and traction inverters. |
Applications
| On-Board Charger (OBC) | Traction Inverter |
|---|---|
Use Scenario: Isolated gate driving for bidirectional AC/DC and DC/DC stages in EV OBCs operating at 10–24 V gate supplies and >100 kHz switching. IC Role / Device Role / Timing Role: High-side/low-side PWM-controlled gate driver providing shoot-through protection via programmable dead time and UVLO monitoring per rail. Use Value: 12 V UVLO prevents misfiring during battery voltage sag; 4.0 A drive supports fast SiC FET switching; SOIC-16 WB fits compact OBC layouts. |
Use Scenario: Driving IGBT/SiC half-bridges in 400–800 V traction inverters where EMI immunity and thermal robustness are critical. IC Role / Device Role / Timing Role: Isolated dual-channel driver with 100 kV/µs CMTI and fail-safe shutdown - ensures safe operation during high dv/dt transients. Use Value: 5 kVRMS isolation meets reinforced insulation requirements; deglitch filtering reduces false triggering in noisy motor-control environments. |
| Battery Management System (BMS) | Solar Inverter |
Use Scenario: Controlling high-voltage contactors and pre-charge circuits in automotive BMS, requiring functional safety and fault reporting. IC Role / Device Role / Timing Role: Isolated driver enabling safe, sequenced activation of main and pre-charge relays with controlled dead time. Use Value: Extended VDDI range (2.5–5.5 V) interfaces directly with BMS MCU; AEC-Q100 qualification supports ASIL-B system integration. |
Use Scenario: Gate driving for transformerless string inverters with split-phase outputs and stringent leakage current limits. IC Role / Device Role / Timing Role: Reinforced-isolation driver ensuring galvanic separation between PV array and grid interface while maintaining timing accuracy. Use Value: 30 ns propagation delay minimizes timing skew across parallel half-bridges; SOIC-16 WB supports creepage/clearance requirements for 1000 V systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-side/low-side isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI82394CB4-IS1R | Same SOIC-16 WB package and PWM-input architecture, but includes UVLO status pin (RDY) and 10–200 ns dead time range. | Required where real-time UVLO fault reporting to controller is needed; not suitable if RDY pin is unused or PCB space constrained. | Select SI82394CB4-IS1R only when status feedback is mandatory; SI82398CB4-IS1R reduces BOM count by eliminating need for RDY routing. |
| UCC5390SCDR | Texas Instruments part with 4 A drive, 5 kVRMS isolation, but uses capacitive isolation and lacks deglitch filtering; dead time fixed at 120 ns. | Acceptable for non-automotive industrial inverters where TI ecosystem preference exists, but not AEC-Q100 qualified. | Choose UCC5390SCDR for cost-sensitive industrial designs without automotive qualification needs; SI82398CB4-IS1R preferred for EV programs requiring PPAP and IMDS compliance. |
Compared with SI82394CB4-IS1R, SI82398CB4-IS1R trades UVLO status reporting for simplified layout and broader dead time tuning; versus UCC5390SCDR, it delivers automotive qualification, higher CMTI, and hardware deglitching - making it optimal for safety-critical traction and charging systems.
Availability
SI82398CB4-IS1R is available at Aetrix Electronics and suitable for on-board chargers, traction inverters, and battery management systems requiring stable component supply, automotive-grade traceability, and long-lifecycle support.
Supply support for SI82398CB4-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, isolation, and precision timing technologies.
The Si8239x family was engineered specifically for high-reliability isolated gate driving in electric vehicle powertrain systems and industrial motor controls - emphasizing AEC-Q100 compliance, reinforced insulation, and noise-immune RF isolation.
FAQ
What is the isolation voltage rating of the SI82398CB4-IS1R?
The SI82398CB4-IS1R provides 5 kVRMS isolation rating per UL 1577 and VDE 0884-10 standards, supporting reinforced insulation for safety-critical applications including EV traction inverters and on-board chargers. This rating is verified for 1 minute at 5000 Vrms and applies across the full operating temperature range of –40 °C to +125 °C.
Does the SI82398CB4-IS1R include an RDY (ready) status pin?
No, the SI82398CB4-IS1R does not include an RDY pin. Per the Si8239x Ordering Guide and Table 2.4, SI82398 variants are explicitly defined with "UVLO Status Pin = No". This distinguishes it from SI82394 variants (e.g., SI82394CB4-IS1R), which do provide RDY output for UVLO fault reporting.
What is the purpose of the deglitch feature in the SI82398CB4-IS1R?
The deglitch feature in the SI82398CB4-IS1R filters sub-50 ns noise spikes on the PWM input to prevent false triggering of the gate outputs. This hardware-level filtering eliminates the need for external RC networks or firmware debouncing, enhancing reliability in high-noise motor drive and inverter environments where EFT and burst transients are common.
Can the SI82398CB4-IS1R drive both high-side and low-side switches simultaneously?
Yes, the SI82398CB4-IS1R is a dedicated high-side/low-side driver with complementary PWM-controlled outputs: VOA goes high while VOB goes low on PWM high, and vice versa on PWM low. Its programmable 40–600 ns dead time ensures safe non-overlapping switching to prevent shoot-through in half-bridge configurations.
Is the SI82398CB4-IS1R qualified for automotive applications?
Yes, the SI82398CB4-IS1R is AEC-Q100 qualified and manufactured using Skyworks' automotive-specific process flows. It supports AIAG-compliant PPAP documentation, IMDS/CAMDS material declarations, and zero-defect methodology - making it suitable for on-board chargers, battery management systems, and traction inverters in BEV/HEV platforms.
SI82398CB4-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):
- 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:
- 12.8V ~ 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
SI82398CB4-IS1R FAQ
1.How can I place an order for SI82398CB4-IS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82398CB4-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 SI82398CB4-IS1R reliable?
The price and inventory of SI82398CB4-IS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82398CB4-IS1R is usually 5 days.
3.What payment methods are accepted for SI82398CB4-IS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82398CB4-IS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82398CB4-IS1R?
SI82398CB4-IS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82398CB4-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 SI82398CB4-IS1R?
For technical support, including SI82398CB4-IS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82398CB4-IS1R requirements.
6.How does Aetrix verify that SI82398CB4-IS1R is sourced from the original manufacturer or authorized distributors?
All SI82398CB4-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 SI82398CB4-IS1R meets industry standards.
7.What is the process for return or replacement of SI82398CB4-IS1R?
All SI82398CB4-IS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82398CB4-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 SI82398CB4-IS1R part is unused and in its original packaging.
Return procedure for SI82398CB4-IS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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