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Skyworks Solutions Inc. SI82397AD-IS
- Part No.:
- SI82397AD-IS
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82397AD-IS.pdf
- Description:
- DGTL ISO 5KV 2CH GATE DVR 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,255
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Product details
Overview
SI82397AD-IS from Skyworks Solutions is a dual-channel isolated gate driver IC designed for high-side/low-side MOSFET or IGBT control in power converters and motor drives. It delivers 4.0 A peak output current, operates with 2.5 V–5.5 V input supply (VDDI), supports up to 5 kVRMS isolation, and features an EN pin, UVLO status feedback, and fail-safe low-default outputs during VDDI power-down. It is used in solar inverters and industrial DC-DC supplies requiring reinforced insulation and robust noise immunity.
For engineers reviewing the SI82397AD-IS datasheet, SI82397AD-IS pinout, SI82397AD-IS application, or SI82397AD-IS equivalent, key selection considerations include its SOIC-16 wide-body package, absence of enhanced UVLO or programmable dead time, presence of UVLO status pin (RDY), 1 ms safe startup delay, and compatibility with 6 V output UVLO threshold in high-reliability isolated drive systems.
Technical Context
The SI82397AD-IS implements two independent isolated channels using Skyworks' proprietary RF-based silicon isolation barrier, enabling high CMTI (100 kV/µs) and eliminating LED aging or temperature drift issues inherent in optocouplers. Each channel accepts separate TTL-compatible inputs (VIA, VIB) and drives complementary outputs (VOA, VOB) with fail-safe behavior: both outputs default low when VDDI is unpowered or during UVLO conditions.
It integrates undervoltage lockout monitoring on all three power domains (VDDI, VDDA, VDDB), with status reported via the RDY pin. Unlike Si82390/1/3 variants, it lacks enhanced UVLO feedback across isolation - UVLO detection is local to each driver side only - and does not support programmable dead time or deglitch filtering.
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. |
| Peak Output Current | 4.0 A - sufficient to directly drive high-gate-charge MOSFETs/IGBTs without external buffers in 10–24 V gate drive applications. |
| VDDI Supply Range | 2.5 V–5.5 V - enables direct interfacing with low-voltage microcontrollers (e.g., 3.3 V logic) without level shifting. |
| UVLO Threshold (Output) | 6 V - ensures stable turn-on of power devices only after driver-side supply (VDDA/VDDB) reaches minimum operational voltage. |
| Startup Delay | 1 ms typical - provides monotonic, glitch-free initialization sequence before output state becomes valid. |
| Propagation Delay | 30 ns - enables precise timing control in high-frequency switching topologies (e.g., >100 kHz PWM). |
| Operating Temperature | –40 °C to +125 °C - supports deployment in industrial and automotive under-hood environments. |
Pinout & Package
SI82397AD-IS is housed in a RoHS-compliant SOIC-16 wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance optimized for reinforced insulation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Channel A input | TTL-compatible high-true logic input controlling VOA; referenced to GNDI. |
| VIB | Channel B input | TTL-compatible high-true logic input controlling VOB; referenced to GNDI. |
| EN | Enable input | Active-high global shutdown: forces both VOA and VOB low regardless of VIA/VIB state when pulled low. |
| RDY | UVLO status output | Open-drain digital flag indicating valid operation - high when all supplies (VDDI, VDDA, VDDB) are above UVLO thresholds. |
| GNDI | Input-side ground | Reference for VDDI, VIA, VIB, EN, and RDY; galvanically isolated from power-side grounds. |
| VDDI | Input-side supply | 2.5 V–5.5 V power for input logic and isolation barrier; powers internal RF transmitter. |
| VOA | Channel A output | High-current gate driver output (4 A sink/source); referenced to VDDA/GNDA; fails low if VDDA < 6 V or VDDI unpowered. |
| VOB | Channel B output | High-current gate driver output (4 A sink/source); referenced to VDDB/GNDB; fails low if VDDB < 6 V or VDDI unpowered. |
| VDDA | Driver A supply | 10–24 V gate drive supply for VOA; monitored for UVLO; must be independently regulated. |
| GNDA | Driver A ground | Power-side return for VOA and VDDA; isolated from GNDI and GNDB. |
| VDDB | Driver B supply | 10–24 V gate drive supply for VOB; monitored for UVLO; must be independently regulated. |
| GNDB | Driver B ground | Power-side return for VOB and VDDB; isolated from GNDI and GNDA. |
| NC | No connect | Pins 1, 2, 15, and 16 are internally unused and must remain unconnected per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Dual isolated drivers in single SOIC-16 WB | Reduces PCB area and component count vs. discrete optocoupler + gate driver solutions; eliminates inter-channel skew. |
| Fail-safe low-default outputs | Ensures power devices remain off during input power loss or brownout - critical for preventing shoot-through in half-bridge configurations. |
| UVLO status reporting via RDY pin | Enables system-level fault detection and safe sequencing without external monitoring circuitry. |
| 1 ms delayed startup | Guarantees monotonic output behavior at power-up, avoiding transient glitches that could trigger unintended switching. |
| 100 kV/µs CMTI | Withstands fast common-mode transients in noisy power electronics environments (e.g., motor drives, inverters) without data corruption. |
| AEC-Q100 qualified (automotive-grade variant available) | Validated for automotive applications including on-board chargers and traction inverters when ordered as SI82397AD-AS. |
Applications
| Solar Inverter Half-Bridge Control | Industrial Motor Drive Gate Driving |
|---|---|
Use Scenario: Driving high-side and low-side IGBTs in a 3-phase inverter stage converting DC from PV arrays to grid-synchronized AC. IC Role / Device Role / Timing Role: Isolated dual gate driver providing independent, synchronized control of complementary switches with reinforced insulation between control and power domains. Use Value: Enables reliable operation at 1000 V DC bus with 5 kVRMS isolation, while 30 ns propagation delay supports precise PWM timing at 20 kHz switching frequency. |
Use Scenario: Controlling N-channel MOSFETs in a variable-frequency drive for HVAC compressors or industrial pumps. IC Role / Device Role / Timing Role: High-current isolated driver delivering 4.0 A peak to rapidly charge/discharge gate capacitance and minimize conduction losses. Use Value: Eliminates need for external level shifters or optocouplers; 1 ms safe startup prevents pre-charge faults during system boot. |
| Isolated DC-DC Converter Driver | Battery Management System (BMS) Isolation Interface |
Use Scenario: Driving synchronous rectifiers or primary-side switches in an isolated flyback or forward converter for telecom or server power supplies. IC Role / Device Role / Timing Role: Dual-channel isolated driver ensuring precise dead-time management and fault containment between primary and secondary sides. Use Value: RDY pin signals controller when both VDDA and VDDB are stable, enabling safe enablement of PWM generation after power rail sequencing. |
Use Scenario: Providing isolated gate control for solid-state relays or contactor drivers in high-voltage battery disconnect units (BDUs). IC Role / Device Role / Timing Role: Fail-safe isolated driver ensuring MOSFETs remain off during BMS MCU reset or supply brownout. Use Value: Low-default behavior on VDDI loss guarantees safe open-circuit state in safety-critical HV battery isolation paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual isolated gate driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI82390AD-IS | Includes enhanced UVLO feedback: VOA/VOB forced low if either VDDA or VDDB drops below threshold - enables transformer flux balancing in isolated topologies. | Required in designs where cross-channel UVLO coordination is needed (e.g., push-pull or full-bridge converters with shared magnetic components). | Select SI82390AD-IS if bidirectional UVLO status reporting across isolation is required; SI82397AD-IS suffices when independent UVLO per channel is acceptable. |
| SI82394AD-IS | Single PWM input architecture with 10–200 ns programmable dead time; no separate VIA/VIB inputs. | Optimized for half-bridge configurations where complementary outputs are derived from one PWM signal - reduces MCU pin count and simplifies timing. | Choose SI82394AD-IS for space-constrained half-bridge designs needing integrated dead-time control; SI82397AD-IS suits independent control of two switches. |
Compared with SI82390AD-IS, SI82397AD-IS omits cross-channel UVLO feedback but retains RDY status reporting and 1 ms startup delay; compared with SI82394AD-IS, it offers independent input control instead of PWM-driven complementarity - making it more flexible for non-symmetric switching patterns.
Availability
SI82397AD-IS is available at Aetrix Electronics and suitable for solar inverters, industrial motor drives, and isolated DC-DC power supplies requiring stable component supply, reinforced insulation compliance, and fail-safe gate driving capability.
Supply support for SI82397AD-IS 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 U.S.-based 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 optocoupler-based gate drivers with higher reliability, tighter timing specs, and integrated safety features for industrial and automotive power systems.
FAQ
What is the isolation voltage rating of the SI82397AD-IS?
The SI82397AD-IS 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 industrial inverters and EV charging systems. This rating applies across the entire operating temperature range (–40 °C to +125 °C) and is validated for 1 minute per test protocol.
Does the SI82397AD-IS support programmable dead time?
No, the SI82397AD-IS does not support programmable dead time. That feature is available only in the Si82394/8 series (e.g., SI82394AD-IS). The SI82397AD-IS provides independent control of VOA and VOB via separate VIA and VIB inputs, requiring external dead-time generation in the controller firmware or logic.
What is the function of the RDY pin on the SI82397AD-IS?
The RDY pin on the SI82397AD-IS is an open-drain status output that goes high only when all three power supplies - VDDI, VDDA, and VDDB - are above their respective UVLO thresholds. It enables system-level power sequencing verification and safe enablement of downstream PWM logic before gate drive activation.
Can the SI82397AD-IS drive both high-side and low-side N-channel MOSFETs in a half-bridge?
Yes, the SI82397AD-IS is explicitly designed for high-side/low-side N-MOSFET or IGBT control. Its dual isolated outputs (VOA, VOB) each support 10–24 V gate drive supplies (VDDA, VDDB) with independent ground references (GNDA, GNDB), enabling direct connection to bootstrap or floating high-side gate drivers.
Is the SI82397AD-IS pin-compatible with other Si8239x variants?
The SI82397AD-IS shares the same SOIC-16 wide-body footprint and pinout as all Si8239x devices in that package variant, including SI82390AD-IS and SI82394AD-IS. However, functional differences - such as UVLO architecture, dead-time capability, and input configuration - mean PCB layout reuse requires verification of signal routing and firmware compatibility.
SI82397AD-IS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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
SI82397AD-IS FAQ
1.How can I place an order for SI82397AD-IS through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82397AD-IS 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 SI82397AD-IS reliable?
The price and inventory of SI82397AD-IS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82397AD-IS is usually 5 days.
3.What payment methods are accepted for SI82397AD-IS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82397AD-IS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82397AD-IS?
SI82397AD-IS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82397AD-IS 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 SI82397AD-IS?
For technical support, including SI82397AD-IS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82397AD-IS requirements.
6.How does Aetrix verify that SI82397AD-IS is sourced from the original manufacturer or authorized distributors?
All SI82397AD-IS 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 SI82397AD-IS meets industry standards.
7.What is the process for return or replacement of SI82397AD-IS?
All SI82397AD-IS units undergo pre-shipment inspection (PSI). If there is an issue with SI82397AD-IS, 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 SI82397AD-IS part is unused and in its original packaging.
Return procedure for SI82397AD-IS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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