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Skyworks Solutions Inc. SI82398CD-ISR
- Part No.:
- SI82398CD-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82398CD-ISR.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,337
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Product details
Overview
SI82398CD-ISR from Skyworks Solutions is a dual-channel isolated gate driver IC designed for high-side/low-side MOSFET/IGBT control in power converters and motor drives. It delivers 4.0 A peak output current per channel, operates with 2.5–5.5 V input supply (VDDI), supports up to 24 V driver supply, and features programmable dead time (10–200 ns) and enhanced output UVLO with status feedback. It is used in traction inverters and on-board chargers requiring reinforced isolation and fail-safe operation.
For engineers reviewing the SI82398CD-ISR datasheet, SI82398CD-ISR pinout, SI82398CD-ISR application, or SI82398CD-ISR equivalent, key selection criteria include its 5 kVRMS isolation rating, 100 kV/µs CMTI, SOIC-16 wide-body RoHS package, AEC-Q100 qualification, and PWM-input architecture with independent EN control and safe delayed startup (1 ms).
Technical Context
The SI82398CD-ISR implements RF-based silicon isolation with on/off keying modulation across a proprietary barrier, enabling robust noise immunity without optical degradation. Its dual-channel architecture accepts a single PWM input to drive complementary high-side and low-side outputs with programmable dead time to prevent shoot-through.
It integrates independent undervoltage lockout (UVLO) monitoring on both driver supplies (VDDA/VDDB) and the input side (VDDI), with enhanced UVLO logic that forces both outputs low upon any supply fault. The RDY pin signals valid output readiness after the 1 ms safe startup delay, and the EN pin provides active-high global shutdown independent of input states.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - meets reinforced insulation requirements per IEC62368-1 and VDE 0884-10. |
| Output Drive Current | 4.0 A peak per channel - sufficient to rapidly charge/discharge high-Qg power devices like 650 V SiC MOSFETs. |
| Propagation Delay | 30 ns typical - enables precise timing control in high-frequency (>100 kHz) switching applications. |
| CMTI | 100 kV/µs minimum - ensures reliable operation in noisy high-dv/dt environments such as motor drives and inverters. |
| Dead Time Range | 10–200 ns programmable - prevents cross-conduction in half-bridge topologies without external timing components. |
| Operating Temperature | –40 °C to +125 °C - qualified for automotive under-hood and industrial power module environments. |
| Input Supply Range | 2.5 V to 5.5 V VDDI - compatible with modern low-voltage microcontrollers and ASIL-B system controllers. |
Pinout & Package
SI82398CD-ISR 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 / VIB | Input logic terminals (not used) | Unused in PWM-input variants; internally disconnected - only PWM pin is functional for control. |
| PWM | Single digital input | High-true TTL-compatible signal; high = VOA high / VOB low; low = VOA low / VOB high. |
| EN | Enable control input | Active-high; forces both outputs low when deasserted - critical for system-level safety interlocks. |
| RDY | Ready status output | Open-drain logic high after 1 ms safe startup completes - synchronizes controller initialization sequence. |
| VDDI | Input-side power supply | 2.5–5.5 V supply for isolation barrier and input logic; powers internal oscillator and EN circuitry. |
| GNDI | Input-side ground reference | Galvanically isolated ground plane for control-side circuitry; must be separated from power-side grounds. |
| VDDA / VDDB | Driver-side power supplies | 10–24 V supplies for high-side and low-side output stages; each monitored independently for UVLO. |
| GND1 / GND2 | Driver-side ground references | Separated grounds for each output stage - essential for accurate UVLO detection and noise isolation. |
| VOA / VOB | Complementary gate drive outputs | 4.0 A capable push-pull outputs; default low during VDDI power-up or UVLO - prevents unintended device turn-on. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based silicon isolation | Eliminates LED aging and temperature drift of optocouplers; enables >10× longer service life and tighter part-to-part matching. |
| Enhanced output UVLO with feedback | Detects undervoltage on either VDDA or VDDB and forces corresponding output low - prevents transformer flux imbalance in isolated DC-DC. |
| Safe delayed startup (1 ms) | Guarantees monotonic output behavior during power-up - eliminates glitch risk before controller firmware initializes. |
| Programmable dead time (10–200 ns) | Configured via external resistor; replaces discrete RC networks and reduces BOM count in half-bridge gate driver designs. |
| AEC-Q100 qualified | Qualified to Grade 1 (–40 °C to +125 °C) with zero-defect manufacturing flow - suitable for automotive traction inverters and OBCs. |
Applications
| Automotive Traction Inverter | On-Board Charger (OBC) |
|---|---|
Use Scenario: Driving high-power SiC half-bridges in EV traction inverters operating at 80–100 kHz switching frequency under harsh thermal and EMI conditions. IC Role / Device Role / Timing Role: Isolated PWM-to-complementary gate driver with dead-time control and UVLO fault reporting to MCU. Use Value: 100 kV/µs CMTI prevents false triggering during high-dv/dt switching; AEC-Q100 qualification ensures reliability over 15-year vehicle lifetime. |
Use Scenario: Controlling bidirectional AC/DC and DC/DC stages in 11 kW+ OBCs with galvanic isolation between grid and battery domains. IC Role / Device Role / Timing Role: High-side/low-side gate driver with independent VDDA/VDDB UVLO monitoring and RDY-synchronized startup. Use Value: Enhanced UVLO feedback prevents flux walk in isolated flyback/LLC transformers; 5 kVRMS isolation meets reinforced insulation requirements for EV charging. |
| Solar String Inverter | Industrial Motor Drive |
Use Scenario: Driving 1200 V IGBTs in three-phase string inverters deployed in outdoor environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Isolated gate driver with fail-safe low-default outputs and programmable dead time for shoot-through prevention. Use Value: –40 °C to +125 °C operation ensures stable performance in uncooled enclosures; SOIC-16 WB package supports high creepage/clearance requirements. |
Use Scenario: Controlling high-current induction motor drives in factory automation systems requiring SIL-2 functional safety compliance. IC Role / Device Role / Timing Role: Safety-enhanced gate driver with EN pin for hardware-initiated shutdown and RDY pin for safe state verification. Use Value: Active-high EN allows direct connection to safety PLC outputs; 1 ms startup delay enables deterministic safety state sequencing per IEC 61800-5-2. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si82394CD-IS | Same family, identical pinout and specs, but lacks deglitch filter - lower noise immunity in ultra-high-noise environments. | No deglitch option limits use in high-EMI motor drives with long gate traces. | Select Si82394CD-IS only if system-level filtering is already implemented and cost optimization is prioritized. |
| UCC5390SCD | Texas Instruments part with 4 A drive, 5 kVRMS isolation, but uses capacitive isolation and has fixed 100 ns dead time. | Lacks programmable dead time and enhanced UVLO feedback - requires external fault handling logic. | Choose UCC5390SCD only when TI ecosystem integration (e.g., C2000 MCU) and capacitive isolation preference outweigh flexibility needs. |
Compared with Si82394CD-IS and UCC5390SCD, SI82398CD-ISR offers unique programmable dead time (10–200 ns) and integrated UVLO status feedback - reducing external component count and enabling safer, more adaptive protection in automotive and solar inverters.
Availability
SI82398CD-ISR is available at Aetrix Electronics and suitable for automotive traction inverters, on-board chargers, and industrial motor drives requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for SI82398CD-ISR 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 developed to replace aging optocoupled gate drivers in high-reliability power systems, delivering higher CMTI, longer life, and integrated safety features for automotive and industrial applications.
FAQ
What is the isolation voltage rating of the SI82398CD-ISR?
The SI82398CD-ISR is rated for 5 kVRMS isolation withstand voltage per UL 1577 and VDE 0884-10 standards, supporting reinforced insulation in safety-critical applications such as EV traction inverters and medical power supplies. This rating is validated for 1 minute and applies across the full operating temperature range of –40 °C to +125 °C.
Does the SI82398CD-ISR support bootstrap power supply configurations?
No - the SI82398CD-ISR does not support bootstrap power for VDDA or VDDB. Its enhanced UVLO logic requires independent, regulated supplies for each driver rail to enable fault detection and feedback. Using bootstrap circuits will disable UVLO functionality and may cause undefined output behavior during low-duty-cycle operation.
How is dead time configured on the SI82398CD-ISR?
Dead time on the SI82398CD-ISR is set by an external resistor connected between the DT pin and GNDI. The value selects one of two ranges: 10–200 ns (default, no deglitch) or 40–600 ns (with deglitch enabled). For SI82398CD-ISR, the standard configuration uses the 10–200 ns range, providing fine-grained control without added propagation delay.
What happens to the outputs of the SI82398CD-ISR during VDDI power-up?
During VDDI power-up, the SI82398CD-ISR holds both VOA and VOB low for a guaranteed 1 ms safe startup delay before sampling the PWM input. This fail-safe behavior prevents unintended power device turn-on and is synchronized to the RDY pin going high - ensuring deterministic initialization in safety-critical systems.
Is the SI82398CD-ISR pin-compatible with other Si8239x variants?
Yes - the SI82398CD-ISR shares the same SOIC-16 wide-body footprint and pin assignment as all Si8239x PWM-input variants (e.g., SI82394CD-IS, SI82398BD-IS). Signal pins (PWM, EN, RDY, VOA, VOB) and supply pins (VDDI, GNDI, VDDA, VDDB, GND1, GND2) are functionally and physically identical across this subset, enabling drop-in replacement within the same dead-time and UVLO configuration group.
SI82398CD-ISR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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
SI82398CD-ISR FAQ
1.How can I place an order for SI82398CD-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82398CD-ISR 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 SI82398CD-ISR reliable?
The price and inventory of SI82398CD-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82398CD-ISR is usually 5 days.
3.What payment methods are accepted for SI82398CD-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82398CD-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82398CD-ISR?
SI82398CD-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82398CD-ISR 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 SI82398CD-ISR?
For technical support, including SI82398CD-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82398CD-ISR requirements.
6.How does Aetrix verify that SI82398CD-ISR is sourced from the original manufacturer or authorized distributors?
All SI82398CD-ISR 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 SI82398CD-ISR meets industry standards.
7.What is the process for return or replacement of SI82398CD-ISR?
All SI82398CD-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI82398CD-ISR, 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 SI82398CD-ISR part is unused and in its original packaging.
Return procedure for SI82398CD-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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