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Skyworks Solutions Inc. SI82398CD4-ISR
- Part No.:
- SI82398CD4-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82398CD4-ISR.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,304
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Product details
Overview
SI82398CD4-ISR from Skyworks Solutions is a high-reliability, 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, supports 2.5–5.5 V input supply (VDDI), operates up to 24 V driver supply, and features programmable dead time (40–600 ns) with deglitch filtering. It is used in traction inverters and on-board chargers requiring reinforced isolation and fail-safe behavior.
For engineers reviewing the SI82398CD4-ISR datasheet, SI82398CD4-ISR pinout, SI82398CD4-ISR application, or SI82398CD4-ISR equivalent, key selection criteria include its 5 kVRMS isolation rating, enhanced UVLO with status feedback, 1 ms safe startup delay, 30 ns propagation delay, and SOIC-16 wide-body RoHS-compliant package.
Technical Context
The SI82398CD4-ISR implements a single-PWM-input, high-side/low-side driver architecture using Skyworks' proprietary RF-based silicon isolation barrier. It integrates two independent isolated output stages with separate VDDA/VDDB supplies, each featuring output undervoltage lockout (UVLO) monitoring and automatic low-state default on fault or power loss.
It uses on/off keying modulation for noise immunity (CMTI = 100 kV/µs), includes an active-high EN pin with 100 kΩ external pull-down, and provides RDY status signaling. The device supports deglitch filtering and programmable dead time to prevent shoot-through in half-bridge topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage - enables reinforced insulation per IEC62368-1 and VDE 0884-10. |
| Output Drive Current | 4.0 A peak sink/source - directly drives high-gate-charge MOSFETs/IGBTs without external buffers. |
| Propagation Delay | 30 ns typical - ensures precise timing alignment between high-side and low-side switching edges. |
| Dead Time Range | 40–600 ns programmable - prevents cross-conduction in half-bridge configurations via external resistor. |
| VDDI Operating Range | 2.5 V to 5.5 V - compatible with modern low-voltage microcontrollers and logic interfaces. |
| Operating Temperature | –40 °C to +125 °C - qualified for automotive under-hood and industrial power electronics environments. |
| CMTI | 100 kV/µs minimum - suppresses false triggering in high-dV/dt motor drive and inverter applications. |
Pinout & Package
SI82398CD4-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 | Input signal reference | Ground reference for PWM input side; connects to GNDI. |
| VIB | Unused input terminal | No internal connection; must be tied to GNDI or left floating per datasheet guidance. |
| PWM | Single logic input | TTL-compatible high-true PWM signal controlling complementary outputs VOA/VOB. |
| EN | Enable control | Active-high enable; requires 100 kΩ pull-down to GNDI for safe default-off operation. |
| VDDI | Input-side supply | 2.5–5.5 V supply powering input logic and isolation transmitter; decoupled with 1 µF + 0.1 µF. |
| GNDI | Input ground | Reference for input signals and VDDI; galvanically isolated from power-side grounds. |
| VDDA | High-side driver supply | 10–24 V supply for high-side output stage; decoupled with 10 µF + 0.1 µF. |
| VOA | High-side gate output | 4.0 A capable output driving external high-side MOSFET/IGBT gate. |
| GND1 | High-side ground | Return path for VDDA and VOA; isolated from GNDI and GND2. |
| VDDB | Low-side driver supply | 10–24 V supply for low-side output stage; decoupled with 10 µF + 0.1 µF. |
| VOB | Low-side gate output | 4.0 A capable output driving external low-side MOSFET/IGBT gate. |
| GND2 | Low-side ground | Return path for VDDB and VOB; isolated from GNDI and GND1. |
| RDY | Status indicator | Open-drain digital output asserting high when both VDDA and VDDB are above UVLO thresholds. |
| NC | No connect | Pin 14 and Pin 15 are unconnected; no internal bond wire or circuitry. |
| NC | No connect | Pin 14 and Pin 15 are unconnected; no internal bond wire or circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable dead time | 40–600 ns range set by single external resistor - eliminates need for external timing logic in half-bridge designs. |
| Deglitch filtering | Configurable noise rejection on PWM input - prevents false triggering from EMI or layout-induced transients. |
| Enhanced UVLO with status feedback | Dual independent UVLO monitors on VDDA and VDDB with RDY pin assertion - enables system-level fault detection and safe shutdown coordination. |
| Fail-safe default-low outputs | VOA and VOB drive low during VDDI power loss or EN deactivation - prevents unintended power device conduction. |
| 1 ms delayed startup | Monotonic output initialization after VDDI valid - ensures predictable power-up sequence in safety-critical systems. |
Applications
| Motor Control Systems | On-board Chargers (OBC) |
|---|---|
Use Scenario: Driving high-side/low-side IGBTs in 3-phase inverter stages of EV traction motors. IC Role / Device Role / Timing Role: Isolated gate driver providing complementary PWM-controlled outputs with programmable dead time to prevent shoot-through. Use Value: 4.0 A peak drive current and 30 ns propagation delay ensure fast, synchronized switching of high-current power devices. | Use Scenario: Controlling bidirectional AC/DC and DC/DC stages in automotive on-board chargers. IC Role / Device Role / Timing Role: High-reliability isolated driver enabling safe, reinforced-insulation gate control across primary-secondary boundaries. Use Value: 5 kVRMS isolation and AEC-Q100 qualification meet automotive functional safety requirements for OBC systems. |
| Traction Inverters | Solar and Industrial Inverters |
Use Scenario: Gate-driving SiC MOSFETs in high-efficiency traction inverters for battery electric vehicles. IC Role / Device Role / Timing Role: Dual-channel isolated driver delivering precise timing and robust CMTI performance in high-dV/dt environments. Use Value: 100 kV/µs CMTI and –40 °C to +125 °C operation ensure stable gate control under harsh thermal and electrical conditions. | Use Scenario: Enabling half-bridge switching in string inverters and central inverters for photovoltaic systems. IC Role / Device Role / Timing Role: Programmable dead-time driver supporting variable-frequency PWM schemes and transformer-isolated topologies. Use Value: Deglitch filtering and enhanced UVLO reduce spurious turn-on events caused by grid transients or partial power loss. |
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 |
|---|---|---|---|
| Si82394CD4-IS | Same SOIC-16 WB package, identical 4.0 A drive and 5 kVRMS isolation, but lacks deglitch feature and has 10–200 ns dead time range. | Preferred where minimal dead time variation is required and EMI environment is controlled. | Select Si82394CD4-IS only if deglitch filtering is unnecessary and tighter dead time tolerance is critical. |
| UCC21540DWPR | TI part with dual 4-A outputs, 5.7 kVRMS isolation, but requires separate input logic (no single-PWM mode) and has fixed 100 ns dead time. | Suitable for designs needing independent input control or higher isolation margin, not single-PWM topology. | Choose UCC21540DWPR when independent high/low inputs are used or when 5.7 kVRMS is mandated over 5.0 kVRMS. |
Compared with Si82394CD4-IS, SI82398CD4-ISR adds deglitch filtering and extends dead time to 40–600 ns for greater flexibility in noisy or variable-frequency applications; versus UCC21540DWPR, it offers native single-PWM operation and automotive-grade qualification without requiring external logic translation.
Availability
SI82398CD4-ISR is available at Aetrix Electronics and suitable for traction inverters, on-board chargers, and solar inverters requiring stable component supply, automotive-grade reliability, and reinforced isolation compliance.
Supply support for SI82398CD4-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, isolation, and precision timing technologies.
The Si8239x family was developed specifically for high-reliability isolated gate driving in automotive and industrial power conversion, emphasizing safety features, long-term stability, and AEC-Q100 compliance.
FAQ
What is the isolation voltage rating of the SI82398CD4-ISR?
The SI82398CD4-ISR is rated for 5 kVRMS isolation withstand voltage per UL 1577 and VDE 0884-10 standards. This reinforced insulation rating supports safety-critical applications including automotive on-board chargers and traction inverters where galvanic separation between control and power domains is mandatory. The isolation barrier is implemented using Skyworks' proprietary silicon RF technology, not optocouplers.
Does the SI82398CD4-ISR support single-PWM input operation?
Yes, the SI82398CD4-ISR is configured as a high-side/low-side driver with a single PWM input (pin 3). When PWM is high, VOA is driven high and VOB low; when PWM is low, VOA is low and VOB high. This native single-input mode eliminates external logic gates and simplifies PCB layout compared to dual-input drivers. The SI82398CD4-ISR datasheet confirms this behavior in Table 2.4.
What is the purpose of the RDY pin on the SI82398CD4-ISR?
RDY is an open-drain status output that asserts high only when both VDDA and VDDB are above their respective UVLO thresholds. It provides real-time feedback to the controller about the readiness of both driver supplies, enabling coordinated system startup and fault response. The SI82398CD4-ISR uses RDY to signal safe operating conditions before enabling PWM, preventing premature switching during power ramp-up.
How does the deglitch feature work on the SI82398CD4-ISR?
The deglitch feature on the SI82398CD4-ISR filters short-duration noise spikes on the PWM input by requiring a minimum pulse width (typically >50 ns) to register a state change. This prevents false triggering from EMI, layout crosstalk, or transient coupling. The feature is enabled internally for SI82398CD4-ISR per the Ordering Guide and cannot be disabled; it is a key differentiator versus non-deglitch variants like SI82394CD-IS.
Is the SI82398CD4-ISR qualified for automotive applications?
Yes, the SI82398CD4-ISR is an automotive-grade part, indicated by the "-AS" suffix in its full ordering code (SI82398CD4-AS). It is manufactured using automotive-specific process flows, qualified to AEC-Q100 Grade 1 (–40 °C to +125 °C), and supported with AIAG-compliant PPAP documentation, IMDS, and CAMDS listings - all confirmed in the Si8239x Data Sheet Section 1.3 and Table 1.1.
SI82398CD4-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):
- 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
SI82398CD4-ISR FAQ
1.How can I place an order for SI82398CD4-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82398CD4-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 SI82398CD4-ISR reliable?
The price and inventory of SI82398CD4-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82398CD4-ISR is usually 5 days.
3.What payment methods are accepted for SI82398CD4-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82398CD4-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82398CD4-ISR?
SI82398CD4-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82398CD4-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 SI82398CD4-ISR?
For technical support, including SI82398CD4-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82398CD4-ISR requirements.
6.How does Aetrix verify that SI82398CD4-ISR is sourced from the original manufacturer or authorized distributors?
All SI82398CD4-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 SI82398CD4-ISR meets industry standards.
7.What is the process for return or replacement of SI82398CD4-ISR?
All SI82398CD4-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI82398CD4-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 SI82398CD4-ISR part is unused and in its original packaging.
Return procedure for SI82398CD4-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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