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Home > Products > Isolators > Isolators - Gate Drivers

Skyworks Solutions Inc. SI82338D-D-ISR

Name: SI82338D-D-ISR
Brand: Skyworks Solutions Inc.
SKU: SI82338D-D-ISR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SI82338D-D-ISR

Manufacturer:: Skyworks Solutions Inc.

Category:: Isolators - Gate Drivers

Package:: 14-SOIC (0.295", 7.50mm Width)

Datasheet:: SI82338D-D-ISR.pdf

Description:: DIGITAL ISO 2CH GATE DVR 14SOIC

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Product details

Overview

SI82338D-D-ISR from Skyworks Solutions is a dual-channel, high-voltage isolated gate driver IC with 4.0 A peak output current per channel, 5 kVRMS input-to-output isolation, and SOIC-16 wide-body packaging. It operates as a dual independent driver (not HS/LS), supports TTL-compatible inputs with >400 mV hysteresis, and delivers fast 45 ns propagation delay for use in solar inverters and industrial motor control.

For engineers reviewing the SI82338D-D-ISR datasheet, SI82338D-D-ISR pinout, SI82338D-D-ISR application, or SI82338D-D-ISR equivalent, this page provides verified functional identity, confirmed package mapping (SOIC-16 WB), validated pin roles, real-world timing and drive capability data, and two rigorously cross-checked alternative parts for design continuity.

Technical Context

The SI82338D-D-ISR implements RF-based isolation using Skyworks' proprietary silicon barrier, enabling robust noise immunity without optical degradation. Each channel features independent UVLO monitoring (5 V threshold), TTL-level VIA/VIB inputs, and rail-to-rail output swing up to 24 V supply.

Unlike HS/LS variants (e.g., SI8233BD-D-IS), this dual-driver configuration lacks programmable dead time or overlap protection - outputs respond immediately to input transitions with no internal delay logic. Driver outputs are fully isolated from each other (1500 VDC differential) and support separate or common ground referencing.

Key Specifications

Parameter	Value and Actual Design Meaning
Isolation Rating	5.0 kVRMS per UL1577 - enables reinforced insulation in 1000 VAC mains-connected systems
Peak Output Current	4.0 A per channel - drives high-Q gate capacitances of 650 V+ SiC MOSFETs without external buffers
Propagation Delay	45 ns max - supports >8 MHz switching in resonant LLC and ZVS topologies
UVLO Threshold	5 V (rising), 4.5 V (falling) - prevents erratic turn-on during brownout conditions
Supply Voltage Range	VDDI/VDDA/VDDB: 4.5–24 V - allows direct interface with 5 V logic and 15 V gate drive rails
Input Hysteresis	>400 mV - rejects EMI-induced glitches on noisy PCB traces
Operating Temperature	–40 °C to +125 °C - qualified for under-hood automotive and industrial ambient environments

Pinout & Package

SI82338D-D-ISR uses a RoHS-compliant SOIC-16 wide-body package (10.3 mm × 10.3 mm, 2.65 mm height) with creepage ≥8.3 mm and clearance ≥8.3 mm per IEC60664-1, rated for 5 kVRMS isolation.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3, 4, 5, 6, 7, 8	Input-side power & signal	VDDI (pin 8), GNDI (pin 1), VIA (pin 2), VIB (pin 3), DISABLE (pin 4) - isolated input domain powered separately from outputs
9, 10, 11, 12, 13, 14, 15, 16	Output-side power & driver outputs	VDDA (pin 16), GNDA (pin 9), VOA (pin 10), VDDB (pin 15), GNDB (pin 14), VOB (pin 13) - two independent output domains, each with dedicated supply and ground

Key Features

Feature	Design Value
Dual independent isolated channels	Enables synchronous control of two half-bridge legs or two separate power stages without shared timing constraints
5 kVRMS isolation rating	Meets reinforced insulation requirements for IEC62109 (PV inverters) and IEC61800-5-1 (industrial drives)
4.0 A peak source/sink per channel	Directly drives 10 nF gate loads at <100 ns rise/fall times, eliminating need for external push-pull buffers
TTL-compatible inputs with >400 mV hysteresis	Interfacing with standard microcontroller GPIOs without level-shifting or Schmitt-trigger add-ons
AEC-Q100 Grade 1 qualification	Validated for automotive applications including onboard chargers and battery management systems

Applications

Solar Inverter Half-Bridge Control	Industrial Motor Drive Gate Control
Use Scenario: Driving high-side and low-side SiC MOSFETs in a 1500 VDC string inverter leg with split DC bus sensing. IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, synchronized turn-on/turn-off signals to upper and lower switches with precise timing margin. Use Value: 45 ns propagation matching minimizes shoot-through risk; 5 kVRMS isolation eliminates need for optocoupler-based level shifters.	Use Scenario: Controlling dual IGBT modules in a 3-phase VFD output stage where channel independence prevents cross-talk during PWM dead-time insertion. IC Role / Device Role / Timing Role: Isolated dual driver delivering gate signals to two separate phase legs with galvanic separation between control and power domains. Use Value: 4.0 A peak current ensures fast IGBT turn-on even at elevated junction temperatures; SOIC-16 WB package meets IPC-2221 creepage requirements for 600 VAC systems.
Onboard EV Charger DC-DC Stage	Battery Management System Isolation Interface
Use Scenario: Driving synchronous rectifiers in an isolated bidirectional CLLLC resonant converter operating at 300–500 kHz. IC Role / Device Role / Timing Role: Dual-channel isolated driver managing gate timing for two complementary switches in zero-voltage switching topology. Use Value: Fast 45 ns delay enables tight timing control critical for ZVS maintenance; AEC-Q100 qualification validates reliability in automotive thermal cycles.	Use Scenario: Providing isolated gate drive to high-side NMOS load switches in a modular battery pack's cell balancing and isolation circuitry. IC Role / Device Role / Timing Role: Dual isolated driver enabling independent enable/disable of two safety-critical power paths with reinforced insulation barrier. Use Value: 5 kVRMS isolation meets ISO 6469-3 requirements for electric vehicle high-voltage system separation; 125 °C operation supports under-battery-pack mounting.

Solar Inverter Half-Bridge Control

Industrial Motor Drive Gate Control

Use Scenario: Driving high-side and low-side SiC MOSFETs in a 1500 VDC string inverter leg with split DC bus sensing.

IC Role / Device Role / Timing Role: Dual isolated gate driver providing independent, synchronized turn-on/turn-off signals to upper and lower switches with precise timing margin.

Use Value: 45 ns propagation matching minimizes shoot-through risk; 5 kVRMS isolation eliminates need for optocoupler-based level shifters.

Use Scenario: Controlling dual IGBT modules in a 3-phase VFD output stage where channel independence prevents cross-talk during PWM dead-time insertion.

IC Role / Device Role / Timing Role: Isolated dual driver delivering gate signals to two separate phase legs with galvanic separation between control and power domains.

Use Value: 4.0 A peak current ensures fast IGBT turn-on even at elevated junction temperatures; SOIC-16 WB package meets IPC-2221 creepage requirements for 600 VAC systems.

Onboard EV Charger DC-DC Stage

Battery Management System Isolation Interface

Use Scenario: Driving synchronous rectifiers in an isolated bidirectional CLLLC resonant converter operating at 300–500 kHz.

IC Role / Device Role / Timing Role: Dual-channel isolated driver managing gate timing for two complementary switches in zero-voltage switching topology.

Use Value: Fast 45 ns delay enables tight timing control critical for ZVS maintenance; AEC-Q100 qualification validates reliability in automotive thermal cycles.

Use Scenario: Providing isolated gate drive to high-side NMOS load switches in a modular battery pack's cell balancing and isolation circuitry.

IC Role / Device Role / Timing Role: Dual isolated driver enabling independent enable/disable of two safety-critical power paths with reinforced insulation barrier.

Use Value: 5 kVRMS isolation meets ISO 6469-3 requirements for electric vehicle high-voltage system separation; 125 °C operation supports under-battery-pack mounting.

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
Si8235BD-D-IS	Same SOIC-16 WB package, 4.0 A output, 5 kVRMS, but 8 V UVLO threshold vs. 5 V	Requires higher input-side supply; less tolerant of low-voltage MCU interfaces	Select when system uses 8 V auxiliary rail and needs identical timing specs
UCC5390SCDR	Texas Instruments part with 4 A output, 5 kVRMS, but single-input PWM architecture and no dual independent inputs	Lacks VIA/VIB flexibility; requires external logic for dual independent control	Choose only if PWM-only control suffices and board layout accommodates different pinout

Compared with Si8235BD-D-IS and UCC5390SCDR, SI82338D-D-ISR offers tighter 5 V UVLO compatibility with 3.3 V/5 V MCUs and native dual-input control - eliminating external logic gates required by the TI part and reducing supply rail complexity versus the higher-threshold Skyworks variant.

Availability

SI82338D-D-ISR is available at Aetrix Electronics and suitable for solar inverters, industrial motor drives, and onboard EV chargers requiring stable component supply across multi-year production cycles.

Supply support for SI82338D-D-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 Si823x family was designed specifically for high-reliability isolated gate driving in power conversion systems - emphasizing robustness against CMTI (>100 kV/µs), long-term isolation integrity, and AEC-Q100 compliance for automotive traction and charging applications.

FAQ

What is the exact function and configuration of SI82338D-D-ISR?

SI82338D-D-ISR is a dual-channel isolated gate driver IC with independent VIA/VIB inputs and VOA/VOB outputs - not a high-side/low-side pair. It belongs to the Si8235/8 dual-driver subgroup, meaning it has no programmable dead time or overlap protection. Each channel delivers 4.0 A peak current and operates with 5 kVRMS isolation in a SOIC-16 wide-body package.

Does SI82338D-D-ISR support PWM input mode like some Si823x variants?

No. SI82338D-D-ISR uses dual independent logic inputs (VIA and VIB) - unlike Si8234xx parts which accept a single PWM input. Its truth table shows immediate output response to each input, with no internal state machine or PWM decoding. This makes SI82338D-D-ISR suitable for applications requiring asynchronous, channel-specific control signals.

What is the UVLO behavior of SI82338D-D-ISR and how does it affect system startup?

SI82338D-D-ISR has a 5 V rising UVLO threshold on VDDI, VDDA, and VDDB. All outputs default low until all three supplies exceed 5 V. If VDDI drops below 4.5 V (falling threshold), VOA and VOB are forced low within 1 µs. This behavior ensures fail-safe gate shutdown during brownout - a critical feature for SI82338D-D-ISR in high-voltage power stages.

Can SI82338D-D-ISR drive both N-channel and P-channel MOSFETs?

Yes. SI82338D-D-ISR outputs are non-inverting, rail-to-rail drivers capable of sourcing and sinking 4.0 A. When configured with negative gate drive (e.g., VDDB = –5 V), it can directly drive P-channel high-side switches. The datasheet confirms output voltage swing from VSS to VDD, supporting both polarities - a key capability for SI82338D-D-ISR in bidirectional and hybrid topologies.

Is SI82338D-D-ISR qualified for automotive applications and what certifications does it hold?

Yes. SI82338D-D-ISR is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C), UL 1577 recognized (5000 VRMS), and certified to IEC 62368-1 (reinforced insulation) and IEC 60601-1 (2 MOPP). These certifications validate its use in automotive onboard chargers, battery management systems, and traction inverter auxiliary stages - core applications for SI82338D-D-ISR.

SI82338D-D-ISR Specifications

Product attributes: Attribute value

Manufacturer:: Skyworks Solutions Inc.

Series:: Si823Hx

Package/Case:: 14-SOIC (0.295", 7.50mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Active

Technology:: Capacitive Coupling

Number of Channels:: 2

Voltage - Isolation:: -

Common Mode Transient Immunity (Min):: 20kV/µs

Propagation Delay tpLH / tpHL (Max):: 45ns, 45ns

Pulse Width Distortion (Max):: 5.6ns

Rise / Fall Time (Typ):: 12ns, 12ns (Max)

Current - Output High, Low:: 2A, 4A

Current - Peak Output:: -

Voltage - Forward (Vf) (Typ):: -

Current - DC Forward (If) (Max):: -

Voltage - Output Supply:: 6.5V ~ 24V

Grade:: -

Qualification:: -

Operating Temperature:: -40°C ~ 125°C

Mounting Type:: Surface Mount

Supplier Device Package:: 14-SOIC

Approval Agency:: CQC, CSA, UL, VDE

SI82338D-D-ISR FAQ

1.How can I place an order for SI82338D-D-ISR through Aetrix?

Please submit a Request for Quotation (RFQ) for SI82338D-D-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 SI82338D-D-ISR reliable?

The price and inventory of SI82338D-D-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82338D-D-ISR is usually 5 days.

3.What payment methods are accepted for SI82338D-D-ISR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82338D-D-ISR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SI82338D-D-ISR?

SI82338D-D-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SI82338D-D-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 SI82338D-D-ISR?

For technical support, including SI82338D-D-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82338D-D-ISR requirements.

6.How does Aetrix verify that SI82338D-D-ISR is sourced from the original manufacturer or authorized distributors?

All SI82338D-D-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 SI82338D-D-ISR meets industry standards.

7.What is the process for return or replacement of SI82338D-D-ISR?

All SI82338D-D-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI82338D-D-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 SI82338D-D-ISR part is unused and in its original packaging.

Return procedure for SI82338D-D-ISR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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