My Inquiry
My Account
Skyworks Solutions Inc. SI82520AD-IS3
- Part No.:
- SI82520AD-IS3
- Manufacturer:
- Skyworks Solutions Inc.
- Category:
- Isolators - Gate Drivers
- Package:
- 14-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SI82520AD-IS3.pdf
- Description:
- DGTL ISO 5KV 1CH GATE DVR 14SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,726
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SI82520AD-IS3 from Skyworks Solutions is a dual-channel, high-side/low-side isolated gate driver IC with 5 kVRMS reinforced isolation, 4.0 A peak sink/source output drive, 30 ns max propagation delay, and programmable dead time (40–600 ns). It operates with 4.5–20 V input-side supply (VDDIH) and 5.5–30 V output-side supplies (VDDA/VDDB), and is used to drive power MOSFETs and IGBTs in traction inverters and isolated DC-DC converters.
For engineers reviewing the SI82520AD-IS3 datasheet, SI82520AD-IS3 pinout, SI82520AD-IS3 application, or SI82520AD-IS3 equivalent, this page delivers verified technical context on RF-based isolation architecture, booster-assisted Miller plateau drive, fail-safe default-low behavior during input-side power loss, and automotive-grade AEC-Q100 qualification - all critical for high-reliability motor control and on-board charger designs.
Technical Context
The SI82520AD-IS3 implements an RF-modulated isolation barrier with on/off keying, delivering 125 kV/µs CMTI and eliminating startup initialization. Its dual isolated channels operate independently: Driver A (VOA) functions as a high-side driver referenced to GNDA/VDDA; Driver B (VOB) serves as a low-side driver referenced to GNDB/VDDB.
Each channel integrates independent undervoltage lockout (UVLO) monitoring for VDDIH, VDDA, and VDDB, plus over-temperature shutdown (>150 °C). The DIS pin provides unconditional output disable, while the DT pin enables resistor-programmable dead time (40–600 ns) between VOA and VOB rising edges to prevent shoot-through in half-bridge configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5 kVRMS for 1 minute (UL 1577, VDE/CSA 62368-1 reinforced insulation) |
| Peak Output Current | 4.0 A sink/source (supports fast turn-on of high-Ciss power switches) |
| Propagation Delay | ≤30 ns (enables >30 MHz switching in hard-switched topologies) |
| Common-Mode Transient Immunity | ≥125 kV/µs (ensures robust operation in noisy high-dV/dt environments like inverters) |
| Operating Temperature | –40 °C to +125 °C (fully specified across industrial and automotive ambient ranges) |
| Input Logic Compatibility | TTL-level (VIH = 1.6–2.0 V, VIL = 0.8–1.2 V) with 800 mV hysteresis |
| Dead Time Range | 40–600 ns (programmed via external resistor RDT from DT to GND) |
| Supply Voltage Ranges | VDDIH = 4.5–20 V; VDDA/VDDB = 5.5–30 V (supports wide-bus industrial and EV battery systems) |
Pinout & Package
SI82520AD-IS3 is housed in a RoHS-compliant WB SOIC-14 package (10.3 mm × 7.5 mm, 2.65 mm height) with 8.0 mm creepage and clearance, rated for 5 kVRMS isolation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIA | Non-inverting logic input for Driver A | High-true TTL input controlling high-side output VOA |
| VIB | Non-inverting logic input for Driver B | High-true TTL input controlling low-side output VOB |
| VDDIH | Input-side power supply | 4.5–20 V supply powering RF transmitter and logic; UVLO thresholds at 3.2–4.4 V (rising) |
| GNDI | Input-side ground reference | Reference for VIA, VIB, EN/DIS, DT; galvanically isolated from output grounds |
| DIS | Disable input (active-high) | Unconditionally forces VOA and VOB LOW when asserted; internal 100 kΩ pull-down |
| DT | Dead time programming input | Resistor-to-ground sets dead time (DT ≈ 5.4 × RDT + 14 ns); no external capacitor required |
| VDDA | Driver A power supply | 5.5–30 V supply for high-side driver; UVLO thresholds depend on selected rating (A/B/C) |
| VOA | Driver A output (high-side) | 4.0 A capable output driving external N-channel MOSFET/IGBT gate; fails low if VDDA drops |
| GNDA | Driver A ground | Return path for VDDA and VOA; isolated from GNDI and GNDB |
| VDDB | Driver B power supply | 5.5–30 V supply for low-side driver; independent UVLO monitoring |
| VOB | Driver B output (low-side) | 4.0 A capable output driving low-side switch; fails low if VDDB drops |
| GNDB | Driver B ground | Return path for VDDB and VOB; isolated from GNDI and GNDA |
Key Features
| Feature | Design Value |
|---|---|
| RF-based isolation barrier | Eliminates LED aging and temperature drift of optocouplers; enables stable timing over life and temperature |
| Output booster architecture | Parallel NMOS helper transistor delivers +3 A peak pull-up current during Miller plateau, reducing turn-on time |
| Fail-safe default-low outputs | VOA and VOB automatically go LOW when VDDIH is unpowered - prevents unintended power switch activation |
| Programmable dead time | Single-resistor configuration (RDT) enables precise shoot-through prevention without external logic or timers |
| AEC-Q100 qualified | Qualified to Grade 1 (–40 °C to +125 °C) with PPAP documentation support for automotive OBC and traction inverter use |
| Over-temperature protection | Internal thermal sensor forces outputs LOW above 150 °C junction temperature - protects against thermal runaway |
Applications
| On-Board Charger (OBC) | Traction Inverter |
|---|---|
|
Use Scenario: Isolated half-bridge driving in bidirectional AC/DC and DC/DC stages of EV on-board chargers. IC Role / Device Role / Timing Role: High-side/low-side gate driver with 5 kVRMS isolation enabling safe control of 800 V battery-side switches. Use Value: 125 kV/µs CMTI prevents false triggering during fast dV/dt transients from SiC/GaN switching; DIS pin enables functional safety shutdown per ISO 26262. |
Use Scenario: Driving high-power IGBTs or SiC MOSFETs in 3-phase motor inverters for BEVs and HEVs. IC Role / Device Role / Timing Role: Dual isolated driver providing independent UVLO per channel and programmable dead time for precise phase-leg control. Use Value: 30 ns propagation delay and <5 ns skew enable >20 kHz PWM with minimal timing uncertainty; AEC-Q100 Grade 1 ensures reliability under vehicle thermal cycling. |
| Solar Inverter | Isolated DC-DC Converter |
|
Use Scenario: Controlling H-bridge or NPC topology switches in string-level solar inverters operating up to 1500 VDC. IC Role / Device Role / Timing Role: Reinforced-isolation driver enabling gate control across 1500 VDC differential voltage between high-side and low-side switches. Use Value: 1500 VDC driver-to-driver differential rating and 8.0 mm creepage meet IEC 62109 and UL 1741 requirements for PV systems. |
Use Scenario: Driving synchronous rectifiers and primary-side switches in isolated flyback or forward converters for industrial power supplies. IC Role / Device Role / Timing Role: Dual-channel isolated driver supporting both primary-side high-side and secondary-side low-side gate drive with shared input logic. Use Value: Wide VDDIH range (4.5–20 V) accommodates varied controller supply rails; booster function improves light-load efficiency by reducing conduction losses during Miller region. |
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 |
|---|---|---|---|
| Si82521AD-IS3 | EN (enable) pin instead of DIS (disable); identical isolation, drive strength, and timing specs | Preferred where active-high enable logic aligns with system controller architecture (e.g., MCU GPIO with pull-up) | Select Si82521AD-IS3 only if EN functionality is required; pinout differs (EN replaces DIS), requiring PCB layout change |
| UCC5390SCD | TI device with 5 kVRMS isolation, 4 A drive, but uses capacitive isolation and lacks integrated dead time programming | Requires external dead time circuitry; lower CMTI (100 kV/µs) limits suitability in ultra-fast SiC systems | Choose UCC5390SCD when TI ecosystem integration or capacitive isolation preference outweighs need for on-chip dead time control |
Compared with SI82520AD-IS3, Si82521AD-IS3 offers identical performance with swapped control logic polarity, while UCC5390SCD trades integrated dead time and higher CMTI for TI-specific design tooling and capacitive isolation heritage - making SI82520AD-IS3 optimal for shoot-through-critical, high-dV/dt automotive and solar applications.
Availability
SI82520AD-IS3 is available at Aetrix Electronics and suitable for on-board chargers, traction inverters, and solar inverters requiring stable component supply, long-term lifecycle assurance, and automotive-grade traceability.
Supply support for SI82520AD-IS3 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 Si8252x family was designed specifically for high-reliability isolated gate driving in electric vehicle powertrain systems and industrial energy conversion, emphasizing RF-based robustness, fail-safe behavior, and AEC-Q100 compliance.
FAQ
What is the isolation voltage rating of the SI82520AD-IS3 and which safety standards does it meet?
The SI82520AD-IS3 is rated for 5 kVRMS isolation for one minute and meets UL 1577 (basic insulation), CSA/IEC 62368-1 (reinforced insulation), VDE 62368-1 (reinforced insulation), and CQC GB4943.1-2011. Its WB SOIC-14 package provides 8.0 mm creepage and clearance, supporting reinforced insulation up to 600 VRMS working voltage in accordance with IEC 60664-1.
Does the SI82520AD-IS3 support both high-side and low-side gate driving in a single package?
Yes, the SI82520AD-IS3 integrates two fully isolated drivers: Driver A (VOA) is configured for high-side operation with dedicated VDDA and GNDA pins, while Driver B (VOB) serves as a low-side driver with VDDB and GNDB. Their isolation barriers are independent, allowing operation across up to 1500 VDC differential voltage between outputs.
How is dead time programmed on the SI82520AD-IS3, and what is its functional scope?
Dead time on the SI82520AD-IS3 is set using a single resistor (RDT) connected from the DT pin to ground, with typical dead time calculated as DT ≈ 5.4 × RDT + 14 ns (RDT in kΩ). It applies only to rising edges of VOA and VOB when the opposite input is high - preventing shoot-through in half-bridge configurations without affecting single-channel operation.
What happens to the outputs of the SI82520AD-IS3 if the input-side supply (VDDIH) is lost?
When VDDIH falls below its UVLO threshold (~2.7–4.0 V), the SI82520AD-IS3 enters fail-safe mode: both VOA and VOB are unconditionally driven LOW, regardless of VIA/VIB states. This prevents unintended turn-on of power switches during brownout or controller reset conditions - a critical safety feature for automotive and industrial systems.
Is the SI82520AD-IS3 qualified for automotive applications, and what does its AEC-Q100 Grade 1 rating mean?
Yes, the SI82520AD-IS3 is AEC-Q100 qualified to Grade 1, meaning it is tested and guaranteed to operate reliably from –40 °C to +125 °C junction temperature. It supports AIAG-compliant PPAP documentation and IMDS/CAMDS listings, fulfilling requirements for use in on-board chargers, battery management systems, and traction inverters in BEV/HEV platforms.
SI82520AD-IS3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Skyworks Solutions Inc.
- Series:
- Si8252x
- Package/Case:
- 14-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Number of Channels:
- 1
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 125kV/µs
- Propagation Delay tpLH / tpHL (Max):
- 30ns, 30ns
- Pulse Width Distortion (Max):
- 5.6ns
- Rise / Fall Time (Typ):
- 12ns, 12ns (Max)
- Current - Output High, Low:
- 4A, 4A
- Current - Peak Output:
- 4A
- Voltage - Forward (Vf) (Typ):
- -
- Current - DC Forward (If) (Max):
- -
- Voltage - Output Supply:
- 5.5V ~ 30V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-SOIC
- Approval Agency:
- CQC, CSA, UL, VDE
SI82520AD-IS3 FAQ
1.How can I place an order for SI82520AD-IS3 through Aetrix?
Please submit a Request for Quotation (RFQ) for SI82520AD-IS3 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 SI82520AD-IS3 reliable?
The price and inventory of SI82520AD-IS3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SI82520AD-IS3 is usually 5 days.
3.What payment methods are accepted for SI82520AD-IS3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SI82520AD-IS3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SI82520AD-IS3?
SI82520AD-IS3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SI82520AD-IS3 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 SI82520AD-IS3?
For technical support, including SI82520AD-IS3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SI82520AD-IS3 requirements.
6.How does Aetrix verify that SI82520AD-IS3 is sourced from the original manufacturer or authorized distributors?
All SI82520AD-IS3 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 SI82520AD-IS3 meets industry standards.
7.What is the process for return or replacement of SI82520AD-IS3?
All SI82520AD-IS3 units undergo pre-shipment inspection (PSI). If there is an issue with SI82520AD-IS3, 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 SI82520AD-IS3 part is unused and in its original packaging.
Return procedure for SI82520AD-IS3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SI82520AD-IS3 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…
