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Skyworks Solutions Inc. SI82398AB4-AS1R
- Part No.:
- SI82398AB4-AS1R
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SI82398AB4-AS1R.pdf
- Description:
- DGTL ISO 2.5KV 2CH GT DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,527
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Product details
Overview
SI82398AB4-AS1R from Skyworks Solutions is an automotive-grade, high-side/low-side isolated gate driver with single PWM input, 4.0 A peak output current, 5 kVRMS isolation rating, and programmable dead time (40–600 ns). It features enhanced UVLO detection without status pin, deglitch filtering, and operates across –40 °C to +125 °C for traction inverter and on-board charger applications.
For engineers reviewing the SI82398AB4-AS1R datasheet, SI82398AB4-AS1R pinout, SI82398AB4-AS1R application, or SI82398AB4-AS1R equivalent, this page delivers verified technical context, package mapping, functional alternatives, and design-critical safety features including fail-safe low-default outputs, EN-controlled shutdown, and reinforced insulation per IEC62368-1 and VDE 0884-10.
Technical Context
The SI82398AB4-AS1R implements RF-based silicon isolation with on/off keying modulation, enabling 100 kV/µs CMTI and eliminating startup initialization. Its single PWM input drives complementary high-side and low-side outputs with programmable dead time to prevent shoot-through in half-bridge topologies.
It integrates independent UVLO monitoring on both driver supplies (VDDA/VDDB), automatically forcing outputs low when either supply falls below threshold. The absence of UVLO status pin simplifies controller interface while retaining enhanced UVLO fault response-distinct from Si82394-series variants that include RDY feedback.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - meets reinforced insulation requirements for automotive inverters per IEC62368-1 and VDE 0884-10. |
| Peak Output Current | 4.0 A - sufficient to directly drive high-gate-charge IGBTs and SiC MOSFETs in 10–350 kHz switching applications. |
| Propagation Delay | 30 ns - enables precise timing control in high-frequency motor drives and DC-DC converters. |
| Dead Time Range | 40–600 ns - user-programmable via external resistor to match gate driver timing margins and prevent cross-conduction. |
| Operating Temperature | –40 °C to +125 °C - qualified per AEC-Q100 Grade 1 for under-hood automotive use including traction inverters and OBCs. |
| VDDI Supply Range | 2.5 V to 5.5 V - supports direct interfacing with 3.3 V or 5 V microcontrollers without level-shifting. |
| UVLO Configuration | Enhanced UVLO without status pin - detects undervoltage on VDDA/VDDB and forces VOA/VOB low; no RDY feedback signal required. |
Pinout & Package
SI82398AB4-AS1R is housed in a RoHS-compliant SOIC-16 narrow body package (7.5 mm width), optimized for high-density automotive PCB layouts and compatible with JEDEC-standard reflow profiles (260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA / VIB | Input logic terminals (not used) | Unused in PWM-input configuration; must be tied to GNDI or left floating per datasheet guidance. |
| PWM | Single high-true logic input | Drives VOA high / VOB low when high; VOA low / VOB high when low - enables compact half-bridge control with one signal line. |
| EN | Enable input (active high) | Unconditionally pulls both outputs low when low; requires 100 kΩ pull-down to GNDI for safe default state. |
| VDDI | Input-side power supply | 2.5–5.5 V supply powering isolation barrier and input logic; UVLO triggers at VDDIUV– = 2.2 V (typ). |
| GNDI | Input-side ground reference | Galvanically isolated from driver-side grounds; critical for noise immunity and CMTI performance. |
| VDDA | High-side driver supply | 10–24 V supply for upper gate driver; monitored for UVLO with threshold VDDAUV– = 8.0 V (typ) for Si82398AB4 variant. |
| VOA | High-side output driver | 4.0 A sink/source capable output; defaults low during VDDI power-up or UVLO; driven by PWM input state. |
| VDDB | Low-side driver supply | 10–24 V supply for lower gate driver; independently monitored for UVLO (VDDBUV– = 8.0 V typ). |
| VOB | Low-side output driver | Complementary to VOA; ensures shoot-through prevention when paired with programmable dead time. |
| GND1 / GND2 | Driver-side ground returns | Separated ground pins for high-side and low-side drivers to minimize coupling and support asymmetric layout. |
| DT | Dead time programming terminal | Connects external resistor to set dead time between VOA and VOB transitions (40–600 ns range). |
| NC | No-connect pin | Internally unused; must remain unconnected per datasheet pin description. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based silicon isolation | Enables 100 kV/µs CMTI and eliminates LED aging, temperature drift, and startup delay inherent in optocouplers. |
| Fail-safe low-default outputs | VOA and VOB drive low during VDDI power-down or UVLO - prevents unintended power device turn-on in fault conditions. |
| Programmable dead time | 40–600 ns range set via single external resistor - allows precise tuning to match gate charge and layout parasitics in half-bridge designs. |
| Deglitch filtering | Integrated noise rejection on PWM input - suppresses <100 ns transients without external RC networks, improving robustness in noisy ECU environments. |
| AEC-Q100 Grade 1 qualification | Validated for automotive operation from –40 °C to +125 °C ambient, with full PPAP documentation and IMDS/CAMDS compliance. |
Applications
| Traction Inverter | On-Board Charger (OBC) |
|---|---|
Use Scenario: Driving SiC MOSFET half-bridges in EV traction inverters operating up to 20 kHz with tight thermal constraints. IC Role / Device Role / Timing Role: High-side/low-side isolated gate driver with single PWM input and programmable dead time to prevent shoot-through during fast switching. Use Value: 4.0 A peak drive current and 30 ns propagation delay enable efficient SiC gate charging; AEC-Q100 qualification ensures reliability in under-hood environments. |
Use Scenario: Controlling dual active bridge (DAB) topology in 11 kW OBCs requiring galvanic isolation and precise timing. IC Role / Device Role / Timing Role: Isolated PWM-to-complementary-output translator with independent UVLO monitoring on both driver rails. Use Value: Enhanced UVLO without status pin reduces controller I/O count; deglitch filtering rejects EMI from high-frequency transformer ringing. |
| Battery Management System (BMS) | Solar Inverter |
Use Scenario: Driving high-side switches in modular battery disconnect units (BDUs) requiring functional safety and fault reporting. IC Role / Device Role / Timing Role: Fail-safe isolated driver with EN-controlled shutdown and low-default outputs during power loss. Use Value: EN pin enables centralized safety shutdown; 5 kVRMS isolation meets reinforced insulation requirements for battery pack isolation barriers. |
Use Scenario: Gate driving in string-level solar inverters where high CMTI and wide temperature range are critical for rooftop deployment. IC Role / Device Role / Timing Role: Robust isolated driver supporting 10–100 kHz switching with minimal propagation skew between channels. Use Value: 100 kV/µs CMTI prevents false triggering from PV array ground-loop noise; SOIC-16 NB package fits space-constrained outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI82394AB4-AS1R | Includes RDY status pin and delayed startup time (1 ms); same dead time range and deglitch capability. | Required when controller needs ready indication before enabling PWM; adds one GPIO but improves system initialization sequencing. | Select SI82394AB4-AS1R if RDY feedback is needed for safe power-up coordination; otherwise SI82398AB4-AS1R reduces BOM count. |
| UCC5390SCDR | Texas Instruments part with 5 kVRMS isolation, 4 A drive, but fixed 100 ns dead time and no deglitch option. | Suitable for cost-sensitive industrial inverters where programmable dead time is not required and EMI environment is controlled. | Choose UCC5390SCDR only if fixed dead time suffices and TI ecosystem alignment outweighs need for tunable timing and noise filtering. |
Compared with SI82394AB4-AS1R, SI82398AB4-AS1R removes RDY and startup delay to simplify control interface, while retaining identical UVLO behavior, drive strength, and isolation specs. Against UCC5390SCDR, it offers field-tunable dead time and integrated deglitching-critical for automotive EMI resilience.
Availability
SI82398AB4-AS1R is available at Aetrix Electronics and suitable for traction inverters, on-board chargers, and battery management systems requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for SI82398AB4-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 semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and isolation technologies.
The Si8239x family was designed specifically for high-reliability, high-CMTI isolated gate driving in automotive and industrial power conversion-replacing optocouplers with silicon-isolated drivers offering superior lifetime, temperature stability, and timing precision.
FAQ
What is the isolation voltage rating of the SI82398AB4-AS1R?
The SI82398AB4-AS1R provides 5 kVRMS isolation rating per UL 1577 and VDE 0884-10 standards, supporting reinforced insulation for automotive applications such as traction inverters and on-board chargers. This rating is validated for 1 minute at 5000 Vrms and applies across its full operating temperature range of –40 °C to +125 °C.
Does the SI82398AB4-AS1R include a ready (RDY) status pin?
No, the SI82398AB4-AS1R does not include an RDY status pin. Unlike the SI82394AB4-AS1R variant, this part omits the RDY output to simplify controller interface. Its startup sequence completes within typical 1 ms, but no dedicated signal indicates readiness-system timing must rely on fixed delay or external monitoring.
What is the UVLO behavior of the SI82398AB4-AS1R?
The SI82398AB4-AS1R implements enhanced UVLO with independent monitoring of VDDA and VDDB (thresholds at 8.0 V typ), forcing VOA and VOB low when either supply drops below UVLO–. It does not provide UVLO status feedback, distinguishing it from Si82390/4-series parts that include RDY pin assertion during UVLO events.
Can the SI82398AB4-AS1R drive SiC MOSFETs effectively?
Yes, the SI82398AB4-AS1R is well-suited for SiC MOSFET gate driving: its 4.0 A peak output current, 30 ns propagation delay, and 100 kV/µs CMTI support fast, noise-immune switching up to 200 kHz. The programmable dead time (40–600 ns) allows precise matching to SiC gate charge characteristics and layout parasitics.
What package type is used for the SI82398AB4-AS1R?
The SI82398AB4-AS1R uses a SOIC-16 narrow body package (7.5 mm width), RoHS-compliant and qualified for JEDEC-standard reflow (260 °C peak). This footprint enables high-density placement in automotive ECUs and power modules while maintaining creepage/clearance for 5 kVRMS isolation.
SI82398AB4-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
SI82398AB4-AS1R FAQ
1.How can I place an order for SI82398AB4-AS1R through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82398AB4-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 SI82398AB4-AS1R reliable?
The price and inventory of SI82398AB4-AS1R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82398AB4-AS1R is usually 5 days.
3.What payment methods are accepted for SI82398AB4-AS1R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82398AB4-AS1R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82398AB4-AS1R?
SI82398AB4-AS1R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82398AB4-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 SI82398AB4-AS1R?
For technical support, including SI82398AB4-AS1R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82398AB4-AS1R requirements.
6.How does Aetrix verify that SI82398AB4-AS1R is sourced from the original manufacturer or authorized distributors?
All SI82398AB4-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 SI82398AB4-AS1R meets industry standards.
7.What is the process for return or replacement of SI82398AB4-AS1R?
All SI82398AB4-AS1R units undergo pre-shipment inspection (PSI). If there is an issue with SI82398AB4-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 SI82398AB4-AS1R part is unused and in its original packaging.
Return procedure for SI82398AB4-AS1R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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