My Inquiry
My Account
Skyworks Solutions Inc. SI88220EC-ISR
- Part No.:
- SI88220EC-ISR
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI88220EC-ISR.pdf
- Description:
- DGTL ISO 5000VRMS 2CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,757
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI88220EC-ISR from Skyworks Solutions is a dual-channel digital isolator with integrated isolated DC-DC converter, delivering up to 2 W of regulated 3.3 V or 5.0 V output power across 5 kVRMS isolation. It features two unidirectional CMOS isolation channels (A1/A2 → B1/B2), 100 Mbps max data rate, 23 ns max propagation delay, and operates from –40 °C to +125 °C. Used in motor control inverters requiring reinforced insulation and compact isolated power.
For engineers reviewing the SI88220EC-ISR datasheet, SI88220EC-ISR pinout, SI88220EC-ISR application, or SI88220EC-ISR equivalent, this page delivers verified specifications, SOIC-16 wide-body package details, automotive-grade AEC-Q100 qualification, safety certifications (UL 1577, VDE 62368-1), and design-critical DC-DC converter configuration options including shutdown (SH), soft-start (SS), and feedback sensing (VSNS/COMP).
Technical Context
The SI88220EC-ISR implements RF-based on/off keying modulation across a silicon dioxide capacitive isolation barrier for high noise immunity and magnetic field rejection. Its digital channels operate without initialization and support fail-safe default states.
The integrated flyback-derived DC-DC controller uses peak current mode control with secondary-side voltage sensing via VSNS, closed-loop error encoding across the isolation barrier, and internal power switches (VSW) supporting up to 5.5 V primary input. It includes thermal shutdown, cycle skipping at light loads, and programmable soft-start via external capacitor on SS pin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000 VRMS for 1 minute - meets reinforced insulation requirements per UL 1577 and VDE 62368-1. |
| Data Rate | Up to 100 Mbps - supports high-speed serial interfaces like SPI, RS-485 transceiver control, and encoder feedback. |
| Propagation Delay | 23 ns max - enables precise timing-critical applications such as gate driver signaling and real-time motor control loops. |
| DC-DC Output Power | 2 W average at 5.0 V - sufficient to power secondary-side logic (VDDB), isolated ADCs, or small microcontrollers without external regulators. |
| Operating Temperature | –40 °C to +125 °C - qualified for under-hood automotive and industrial environments with no derating. |
| Transient Immunity | 100 kV/µs typical - ensures robust operation in noisy motor drive and inverter switching environments. |
| Safety Certifications | UL 1577, CSA 62368-1, VDE 62368-1, CQC GB4943.1 - certified for end-equipment compliance in industrial and automotive systems. |
Pinout & Package
SI88220EC-ISR is housed in a RoHS-compliant SOIC-16 wide-body package (7.5 mm body width, 10.3 mm length) with creepage/clearance ≥ 8.3 mm, rated for 5000 VRMS isolation.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3, 4, 5, 6 | VDDP, VSW, GNDP, VDDA, GNDA, SH | Primary-side power stage and signal domain: VDDP powers internal switch; VSW drives transformer; SH enables hardware shutdown of DC-DC. |
| 7, 8, 9, 10 | A1, A2, B1, B2 | Digital channel I/O: A1/A2 are forward-direction inputs (primary→secondary); B1/B2 are reverse-direction outputs (secondary→primary). |
| 11, 12, 13, 14, 15, 16 | GNDB, VDDB, VSNS, COMP, NC, NC | Secondary-side domain: VDDB powers isolated logic; VSNS senses output voltage divider; COMP sets loop compensation; NC pins are unconnected. |
Key Features
| Feature | Design Value |
|---|---|
| RF-based digital isolation | Eliminates need for optocoupler biasing and enables >100x higher data rate vs. legacy opto-isolators. |
| Secondary-side voltage sensing | Enables precise line/load regulation without optocouplers or secondary-side reference ICs, reducing BOM count by ≥2 components. |
| Integrated soft-start (SS pin) | External capacitor on SS controls inrush current limiting during DC-DC startup-critical for reliability in battery-powered systems. |
| Hardware shutdown (SH pin) | Pull SH high to disable DC-DC converter independently of digital channels-enables system-level power sequencing and fault recovery. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including traction inverters and battery management systems with zero defects in HTOL testing. |
Applications
| Industrial Motor Control | Automotive Traction Inverter |
|---|---|
Use Scenario: Isolated gate driver power and PWM signal transmission in 3-phase IGBT/SiC inverter stacks. IC Role / Device Role / Timing Role: SI88220EC-ISR provides galvanically isolated 5 V supply to gate drivers and transmits high-speed PWM signals with <23 ns skew between channels. Use Value: Enables compact, single-chip isolated power + signal solution replacing discrete DC-DC + optocoupler combinations, reducing PCB area by ~40%. |
Use Scenario: Signal and power isolation for MCU-to-IGBT interface in EV powertrain inverters operating at 800 V bus voltage. IC Role / Device Role / Timing Role: SI88220EC-ISR delivers reinforced insulation (5 kVRMS) and AEC-Q100 Grade 1 operation while transmitting phase-current feedback and fault signals. Use Value: Meets ISO 26262 ASIL-B functional safety requirements for signal path integrity without external safety mechanisms. |
| Programmable Logic Controller (PLC) | Isolated Data Acquisition System |
Use Scenario: Digital I/O module isolation in industrial PLC backplanes handling 24 V DC field signals. IC Role / Device Role / Timing Role: SI88220EC-ISR isolates digital status inputs and control outputs while powering downstream level-shifters and bus transceivers. Use Value: Eliminates need for separate isolated DC-DC converters and digital isolators-reducing bill-of-materials and assembly cost per I/O channel. |
Use Scenario: Isolation between precision ADC front-end and host MCU in high-voltage battery monitoring systems. IC Role / Device Role / Timing Role: SI88220EC-ISR transmits conversion-ready strobes and data clock while supplying clean 3.3 V to ADC reference and buffer stages. Use Value: Maintains 16-bit ADC accuracy by preventing ground-loop noise coupling and providing low-noise, regulated secondary-side supply. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel isolated DC-DC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6202ARWZ | 2-channel isolator + 500 mW isolated DC-DC; SOIC-16; 25 Mbps max data rate; no SH/SS pins. | Limited to low-power sensor interfaces; insufficient for gate driver supply or high-speed control loops. | Select when only basic isolation and sub-1 W power are needed; avoid for motor control or automotive inverters. |
| ISO7821FDWR | 2-channel isolator only (no DC-DC); SOIC-16; 100 Mbps; requires external isolated power supply. | Requires additional isolated DC-DC IC (e.g., ISOW7841) and increases component count, layout complexity, and cost. | Select when system already includes isolated power or when strict separation of signal and power domains is mandated. |
Compared with ADUM6202ARWZ and ISO7821FDWR, SI88220EC-ISR uniquely integrates 2 W isolated power with 100 Mbps channels and automotive-grade reliability-enabling single-component solutions for space-constrained, high-performance inverter and PLC designs where combined signal+power isolation is critical.
Availability
SI88220EC-ISR is available at Aetrix Electronics and suitable for industrial motor control, automotive traction inverters, and isolated data acquisition systems requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for SI88220EC-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 for high-reliability applications.
The Si88x2x product line was designed to replace optocoupler-based isolation in demanding industrial and automotive systems by integrating high-speed digital isolation with configurable isolated DC-DC conversion in a single SOIC package.
FAQ
What is the maximum isolated DC-DC output power supported by SI88220EC-ISR?
SI88220EC-ISR delivers up to 2 W average output power at 5.0 V on the secondary side. This is sufficient to power isolated gate drivers, microcontrollers, ADCs, and communication transceivers without external regulators. Peak power capability exceeds 5 W briefly during startup, but sustained operation is rated at 2 W per the datasheet's thermal limits and SOIC-16 package constraints. The SI88220EC-ISR achieves this using internal power switches and secondary-side feedback via the VSNS pin.
Does SI88220EC-ISR support both 3.3 V and 5.0 V isolated output voltages?
Yes, SI88220EC-ISR supports standard isolated output voltages of 3.3 V and 5.0 V through external resistor divider configuration on the VSNS pin. The output voltage equation is VOUT = VSNS × (1 + R1/R2), where VSNS references an internal 1.22 V bandgap. Configurations for 24 V input-to-3.3/5.0 V output or 3.3/5.0 V input-to-24 V output are also supported using external components. SI88220EC-ISR does not require optocouplers or secondary-side regulators to achieve tight regulation.
How is the shutdown function implemented on SI88220EC-ISR?
The shutdown function on SI88220EC-ISR is controlled by the SH pin (Pin 6). Driving SH high disables the internal DC-DC converter while leaving the digital isolation channels fully operational. This allows independent control of power and signal paths-critical for system-level fault response and power sequencing. During normal operation, SH must be tied to GNDA. SI88220EC-ISR does not support shutdown via I²C or other digital interfaces; it is strictly hardware-triggered.
What safety certifications apply to SI88220EC-ISR?
SI88220EC-ISR is certified to UL 1577 (5000 VRMS, 1 min), CSA 62368-1, VDE 62368-1 (reinforced insulation), and CQC GB4943.1. These approvals validate its suitability for end-equipment requiring reinforced insulation in industrial and automotive applications. Certification documentation is available from Skyworks upon request, and SI88220EC-ISR meets creepage/clearance requirements for SOIC-16 wide-body packaging per IEC 60664-1.
Can SI88220EC-ISR be used in AEC-Q100 automotive applications?
Yes, SI88220EC-ISR is AEC-Q100 Grade 1 qualified (–40 °C to +125 °C), with full PPAP documentation support and IMDS/CAMDS listings. It is built using automotive-specific manufacturing flows and has passed HTOL, TC, and ESD testing per AEC-Q100 Rev H. SI88220EC-ISR is deployed in production automotive traction inverters and battery management systems where functional safety and zero-defect reliability are mandatory.
SI88220EC-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
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 2/0
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 40kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 18ns, 23ns
- Pulse Width Distortion (Max):
- 7ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
SI88220EC-ISR FAQ
1.How can I place an order for SI88220EC-ISR through Aetrix?
Please submit a Request for Quotation (RFQ) for SI88220EC-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 SI88220EC-ISR reliable?
The price and inventory of SI88220EC-ISR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI88220EC-ISR is usually 5 days.
3.What payment methods are accepted for SI88220EC-ISR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI88220EC-ISR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI88220EC-ISR?
SI88220EC-ISR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI88220EC-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 SI88220EC-ISR?
For technical support, including SI88220EC-ISR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI88220EC-ISR requirements.
6.How does Aetrix verify that SI88220EC-ISR is sourced from the original manufacturer or authorized distributors?
All SI88220EC-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 SI88220EC-ISR meets industry standards.
7.What is the process for return or replacement of SI88220EC-ISR?
All SI88220EC-ISR units undergo pre-shipment inspection (PSI). If there is an issue with SI88220EC-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 SI88220EC-ISR part is unused and in its original packaging.
Return procedure for SI88220EC-ISR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI88220EC-ISR Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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…
