My Inquiry
My Account
Skyworks Solutions Inc. SI82398AD-ISR
- Part No.:
- SI82398AD-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82398AD-ISR.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,685
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI82398AD-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 features 4.0 A peak output current, 2.5–5.5 V input supply (VDDI), 10–200 ns programmable dead time, and reinforced isolation up to 5 kVRMS. It operates across –40 °C to +125 °C and supports safe startup with 1 ms delayed initialization.
For engineers reviewing the SI82398AD-ISR datasheet, SI82398AD-ISR pinout, SI82398AD-ISR application, or SI82398AD-ISR equivalent, this page delivers verified technical context, real-world timing behavior, UVLO fault feedback implementation, and automotive-grade alternative options - all grounded in Skyworks' Si8239x family specifications and SOIC-16 wide-body package constraints.
Technical Context
The SI82398AD-ISR implements a single-PWM-input architecture for high-side/low-side drive, using RF-based silicon isolation to achieve 100 kV/µs CMTI and 30 ns propagation delay. Its logic interprets PWM state to drive VOA high / VOB low on high input, and VOA low / VOB high on low input - with independent UVLO monitoring per output stage.
It integrates enhanced output UVLO detection with status feedback via RDY pin, automatic dual-output shutdown on fault, and fail-safe default-low outputs during VDDI power-down. The EN pin (active-high) enables system-level safety control, while deglitch filtering is disabled per ordering guide entry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS withstand voltage (reinforced insulation per IEC 62368-1/VDE 0884-10) |
| Peak Output Current | 4.0 A - sufficient to directly drive high-Qg power MOSFETs/IGBTs without external buffers |
| Input Supply Range (VDDI) | 2.5 V to 5.5 V - compatible with modern low-voltage microcontrollers and logic families |
| Programmable Dead Time | 10–200 ns - adjustable via external resistor to prevent shoot-through in half-bridge topologies |
| Propagation Delay | 30 ns - enables high-frequency switching (>1 MHz) with tight timing control |
| Operating Temperature | –40 °C to +125 °C - qualified for industrial and automotive under-hood environments |
| CMTI | 100 kV/µs - ensures robust operation in noisy high-dV/dt power stages (e.g., SiC/GaN inverters) |
Pinout & Package
SI82398AD-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 ground reference | Input-side GND - must be connected to controller ground plane; not electrically tied to output-side ground |
| VIB | Input power supply | Input-side VDDI - supplies logic and isolation transmitter; 2.5–5.5 V range |
| PWM | Control input | Single TTL-compatible PWM signal controlling complementary high-side/low-side outputs |
| EN | Enable input | Active-high enable; pulls both outputs low when deasserted; requires 100 kΩ pull-down to GNDI |
| RDY | Status output | Open-drain ready indicator - goes high only after VDDI, VDDA, and VDDB are stable and within UVLO thresholds |
| VOA | High-side output | Driver A output - sinks/source 4.0 A; defaults low during VDDI power-down or UVLO |
| VOB | Low-side output | Driver B output - complementary to VOA in PWM mode; same drive strength and fail-safe behavior |
| VDDA | High-side supply | Driver A power rail - 10–24 V; monitored for UVLO; powers pull-up/pull-down switches (RDS(ON): 2.7 Ω / 1 Ω) |
| VDDB | Low-side supply | Driver B power rail - 10–24 V; independently monitored for UVLO |
| GND | Output ground reference | Output-side GND - isolated from VIA; connects to power device source/emitter return path |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced isolation barrier | Silicon RF isolation enabling 5 kVRMS rating and 100 kV/µs CMTI - eliminates optocoupler aging and temperature drift |
| Enhanced output UVLO with feedback | Detects undervoltage on either VDDA or VDDB and forces corresponding output low; status reported via RDY pin |
| Safe delayed startup | 1 ms monotonic initialization window after VDDI valid - prevents spurious switching during power ramp |
| Fail-safe default-low outputs | Both VOA and VOB drive low when VDDI is unpowered or in UVLO - prevents unintended power device turn-on |
| Programmable dead-time control | 10–200 ns range set by single external resistor - enables precise shoot-through prevention without complex timing circuits |
Applications
| Motor Control Systems | Isolated DC-DC Power Supplies |
|---|---|
Use Scenario: Driving high-side/low-side IGBTs in 3-phase inverter stages for HVAC compressors and industrial servo drives. IC Role / Device Role / Timing Role: High-side/low-side gate driver with synchronized PWM input and programmable dead time to prevent cross-conduction. Use Value: 4.0 A drive strength ensures fast MOSFET/IGBT switching at 20 kHz+ carrier frequencies; 30 ns propagation delay enables tight phase alignment. |
Use Scenario: Controlling synchronous rectifiers and primary-side switches in isolated flyback and forward converters. IC Role / Device Role / Timing Role: Isolated gate driver delivering level-shifted, noise-immune control signals across transformer-coupled power boundaries. Use Value: 5 kVRMS isolation and 100 kV/µs CMTI maintain signal integrity in high-dV/dt environments; RDY pin enables sequenced power-up of secondary-side controllers. |
| Solar and Industrial Inverters | Battery Electric Vehicle Traction Inverters |
Use Scenario: Gate driving SiC MOSFET half-bridges in string inverters and central inverters operating at >100 kHz switching frequency. IC Role / Device Role / Timing Role: High-CMTI isolated driver supporting fast-switching wide-bandgap devices with minimal propagation skew. Use Value: 30 ns delay and <1 ns skew ensure precise timing for SiC gate drive; 125 °C ambient rating supports convection-cooled outdoor enclosures. |
Use Scenario: Driving IGBT modules in traction inverters for battery electric vehicles, requiring AEC-Q100 compliance and functional safety support. IC Role / Device Role / Timing Role: Automotive-grade isolated gate driver with UVLO fault reporting and fail-safe outputs for ASIL-B–capable systems. Use Value: SI82398AD-ISR's automotive variant (SI82398AD-AS) is AEC-Q100 qualified; RDY and EN pins support ISO 26262 diagnostic routines. |
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 |
|---|---|---|---|
| SI82394AD-ISR | Same SOIC-16 WB package, 4.0 A drive, but supports 40–600 ns dead time and integrated deglitch filtering | Better suited for ultra-noisy environments (e.g., onboard chargers with high EMI); requires different dead-time resistor network | Select SI82394AD-ISR if system-level noise demands deglitching or wider dead-time tuning range |
| UCC5390SCDR | Texas Instruments part; 5 A peak drive, 3.3–15 V VDDI, no programmable dead time, no RDY pin | Lacks status feedback and configurable dead time; uses internal fixed dead time (~100 ns) | Choose UCC5390SCDR only if RDY signaling and fine dead-time control are unnecessary and higher drive current is prioritized |
Compared with SI82398AD-ISR, SI82394AD-ISR adds noise immunity via deglitching and broader dead-time flexibility, while UCC5390SCDR trades diagnostics and configurability for higher peak current and simpler layout - making SI82398AD-ISR optimal for cost-sensitive, noise-moderate industrial inverters requiring safe startup and fault visibility.
Availability
SI82398AD-ISR is available at Aetrix Electronics and suitable for motor control systems, isolated DC-DC power supplies, and solar inverters requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for SI82398AD-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 engineered to replace optocoupled gate drivers in high-reliability power systems, delivering superior CMTI, lifetime stability, and integration of safety features like UVLO feedback and fail-safe outputs.
FAQ
What is the isolation voltage rating of the SI82398AD-ISR?
The SI82398AD-ISR provides 5 kVRMS reinforced isolation per UL 1577 and VDE 0884-10 standards. This rating applies across the full operating temperature range and supports safety-critical designs in industrial and automotive power systems where galvanic separation between control and power domains is mandatory.
Does the SI82398AD-ISR support bootstrap power supply configurations?
No - the SI82398AD-ISR does not support bootstrap power for VDDA or VDDB. Its enhanced UVLO architecture requires independent, stable supplies for each driver side. Using bootstrap circuits may cause undefined behavior or failure to exit UVLO, as confirmed in Section 2.6.2 of the Si8239x datasheet.
How is dead time configured on the SI82398AD-ISR?
Dead time on the SI82398AD-ISR is set to 10–200 ns via a single external resistor connected between the DT pin and GND. The exact value is determined by resistor tolerance and layout parasitics; no additional components or configuration registers are required - simplifying PCB design versus digital-programmable alternatives.
What happens to the outputs of the SI82398AD-ISR during VDDI power loss?
When VDDI drops below UVLO threshold, both VOA and VOB are actively driven low - a fail-safe behavior confirmed in Table 2.4 and Section 2.6.2. This prevents unintended turn-on of power devices and is maintained even if VDDA or VDDB remain powered, ensuring system safety during controller power faults.
Is the SI82398AD-ISR qualified for automotive applications?
The SI82398AD-ISR is the industrial-grade version; its automotive counterpart is SI82398AD-AS, which shares identical electrical specs and package but is manufactured under AEC-Q100-compliant flows with AIAG PPAP documentation and IMDS/CAMDS support. SI82398AD-ISR itself is not AEC-Q100 qualified.
SI82398AD-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:
- 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, UR, VDE
SI82398AD-ISR FAQ
1.How can I place an order for SI82398AD-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82398AD-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 SI82398AD-ISR reliable?
The price and inventory of SI82398AD-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82398AD-ISR is usually 5 days.
3.What payment methods are accepted for SI82398AD-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82398AD-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82398AD-ISR?
SI82398AD-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82398AD-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 SI82398AD-ISR?
For technical support, including SI82398AD-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82398AD-ISR requirements.
6.How does Aetrix verify that SI82398AD-ISR is sourced from the original manufacturer or authorized distributors?
All SI82398AD-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 SI82398AD-ISR meets industry standards.
7.What is the process for return or replacement of SI82398AD-ISR?
All SI82398AD-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI82398AD-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 SI82398AD-ISR part is unused and in its original packaging.
Return procedure for SI82398AD-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI82398AD-ISR Tags
.JPG)
-
TLP152(TPL,E
Toshiba Semiconductor and Storage
-
HT0740LG-G
Microchip Technology
-
FOD8314TR2
onsemi
-
1EDI60N12AFXUMA1
Infineon Technologies
-
1EDB7275FXUMA1
Infineon Technologies
-
UCC5350MCDR
Texas Instruments
-
2EDB7259KXUMA1
Infineon Technologies
-
UCC5304DWVR
Texas Instruments
-
SI8261BBC-C-ISR
Skyworks Solutions Inc.
-
HT0440LG-G
Microchip Technology
-
HCPL-0302-500E
Broadcom Limited
-
STGAP2HSCMTR
STMicroelectronics
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
