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Analog Devices Inc. ADUM6422ABRNZ3
- Part No.:
- ADUM6422ABRNZ3
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 28-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6422ABRNZ3.pdf
- Description:
- DGTL ISO 5KV 4CH GEN PRP 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,492
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Product details
Overview
ADUM6422ABRNZ3 from Analog Devices is a quad-channel digital isolator with integrated isoPower® DC-to-DC converter, delivering 100 mA isolated output at 5 V or 3.3 V, supporting up to 100 Mbps signal isolation, and rated for operation up to 125°C. It provides reinforced galvanic isolation for power supply start-up bias, gate drives, and automotive on-board chargers.
For engineers reviewing the ADUM6422ABRNZ3 datasheet, ADUM6422ABRNZ3 pinout, ADUM6422ABRNZ3 application, or ADUM6422ABRNZ3 equivalent, key selection criteria include its integrated 5 V/3.3 V isolated supply capability, AEC-Q100 qualification, CISPR 32 Class B emissions compliance on 2-layer PCBs, and 100 kV/µs common-mode transient immunity.
Technical Context
The ADUM6422ABRNZ3 implements iCoupler® chip-scale transformer technology for both signal isolation and magnetic energy transfer in its integrated DC-to-DC converter. Its architecture supports independent primary-side (VDD1) and secondary-side (VISO) supply domains with undervoltage lockout on all rails.
It features four unidirectional isolation channels with matched propagation delay (≤5 ns channel-to-channel skew), 100 Mbps data rate capability, and operates across input supply ranges of 1.8 V to 5.5 V on both sides - enabling interoperability with low-voltage logic and legacy 5 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | 100 Mbps - supports high-speed serial interfaces including SPI, RS-232, and isolated CAN FD physical layer signaling |
| Isolated Supply Output | 100 mA @ 5 V or 3.3 V - eliminates need for external isolated DC/DC, sufficient to power gate drivers or sensor front-ends |
| Common-Mode Transient Immunity | 100 kV/µs - ensures robust operation in noisy motor drive or OBC environments with fast-switching power devices |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive applications per AEC-Q100 Grade 1 |
| Regulatory Approvals | UL 1577 (5000 V rms/1 min), IEC 62368-1, IEC 61010-1, IEC 60601-1 - meets safety requirements for industrial, medical, and test equipment |
| Propagation Delay | 7.0–15 ns - enables precise timing-critical control loops in isolated feedback paths |
| Package | 28-lead SOIC wide-body (10.3 mm × 10.3 mm), 8.3 mm minimum creepage - supports reinforced insulation per IEC 60664-1 |
Pinout & Package
ADUM6422ABRNZ3 uses a 28-lead, fine-pitch, wide-body SOIC package (SOIC_W) with 1.27 mm pitch and 8.3 mm minimum creepage distance between primary and secondary sides. The package is RoHS-compliant and rated for 5000 V rms isolation per UL 1577.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply input | Supplies logic side (channels A–D input); accepts 1.8–5.5 V; enables low-voltage MCU interfacing |
| GND1 | Primary-side ground reference | Return path for VDD1 and input-side logic; must be separated from GND2 by isolation barrier |
| INA, INB, INC, IND | Digital input signals (primary side) | CMOS-compatible inputs accepting 1.8–5.5 V logic; each drives one isolated channel |
| VISO | Secondary-side isolated supply output | Regulated 5 V or 3.3 V output (configurable via part variant); powers isolated logic and peripherals |
| GND2 | Secondary-side ground reference | Return path for VISO and output-side logic; galvanically isolated from GND1 |
| OUTA, OUTB, OUTC, OUTD | Digital output signals (secondary side) | CMOS outputs referenced to VISO; drive loads up to 3.2 mA; support 100 Mbps switching |
| VDDP | Primary-side power for internal DC/DC controller | Must be connected to VDD1; supplies isoPower oscillator and regulation circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower DC/DC converter | Eliminates external isolated power supply; reduces BOM count and board area in space-constrained OBC and PLC designs |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including on-board chargers and battery management system interfaces |
| CISPR 32 Class B emissions compliance | Meets radiated emission limits on 2-layer PCBs without ferrites - simplifies EMI filtering and layout |
| Reinforced isolation rating | VIORM = 566 V peak, 5000 V rms withstand - satisfies reinforced insulation requirements for functional safety (IEC 61800-5-1) |
| High CMTI (100 kV/µs) | Prevents data corruption during fast dV/dt events in SiC/GaN inverter gate drive circuits |
Applications
| Automotive On-Board Charger (OBC) | Industrial PLC Digital I/O Modules |
|---|---|
Use Scenario: Isolating MCU control signals and feedback from high-voltage DC/DC stages in bidirectional OBCs. IC Role / Device Role / Timing Role: Provides galvanically isolated gate drive enable/disable and voltage/current sense feedback paths with synchronized timing. Use Value: Enables single-chip isolation of both power control and sensing, reducing component count and improving system-level safety certification. |
Use Scenario: Interfacing field-side 24 V digital inputs/outputs to backplane controllers in modular PLC racks. IC Role / Device Role / Timing Role: Delivers channel-by-channel signal isolation plus local 3.3 V/5 V isolated supply for field-side logic and protection circuitry. Use Value: Replaces discrete optocouplers + isolated DC/DC, cutting footprint by >40% while maintaining 100 Mbps update rates. |
| Isolated RS-232 Transceivers | Motor Drive Gate Driver Bias Supply |
Use Scenario: Providing isolated UART communication between host MCU and field equipment in factory automation. IC Role / Device Role / Timing Role: Isolates TX/RX lines and supplies isolated 3.3 V to RS-232 transceiver ICs (e.g., MAX3232). Use Value: Eliminates need for separate isolated DC/DC and four-channel isolators - reduces design complexity and cost. |
Use Scenario: Generating isolated gate bias for high-side IGBT/SiC MOSFET drivers in three-phase inverters. IC Role / Device Role / Timing Role: Supplies regulated 5 V/100 mA to isolated gate driver ICs (e.g., ADuM4135) while relaying PWM signals. Use Value: Supports fast 100 Mbps PWM edge transmission with <15 ns propagation delay, minimizing dead-time uncertainty. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel isolated power applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADUM6421ABRNZ3 | Same package and pinout; differs in channel directionality (3 forward, 1 reverse vs. ADUM6422ABRNZ3's 2 forward, 2 reverse) | Suitable where asymmetric bidirectional control is required (e.g., isolated I²C with clock stretching) | Select ADUM6421ABRNZ3 when mixed-direction channel configuration matches system signal flow |
| SI88642ED-IS | Capacitive isolation; 100 mA isolated supply at 5 V; no AEC-Q100 qualification; lower CMTI (75 kV/µs) | Applicable in industrial but not automotive-grade designs; requires external EMI filtering for CISPR 32 Class B | Choose SI88642ED-IS only for cost-sensitive non-automotive applications where AEC-Q100 and highest CMTI are not mandatory |
Compared with ADUM6421ABRNZ3, ADUM6422ABRNZ3 offers balanced bidirectional channel allocation ideal for full-duplex protocols; versus SI88642ED-IS, it delivers certified automotive reliability, higher CMTI, and verified Class B emissions on minimal PCB layers.
Availability
ADUM6422ABRNZ3 is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial PLCs, isolated RS-232 transceivers, and motor drive gate driver bias supplies requiring stable component supply across extended temperature and regulatory-compliant production cycles.
Supply support for ADUM6422ABRNZ3 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The ADUM642x family was designed to integrate signal isolation and isolated power in a single package for compact, high-reliability systems - specifically targeting automotive electrification and industrial automation where space, safety, and EMI performance are critical.
FAQ
What is the maximum isolated output current of the ADUM6422ABRNZ3?
The ADUM6422ABRNZ3 delivers up to 100 mA of isolated output current at either 5 V or 3.3 V, depending on the configured VISO setting. This output is derated linearly above 85°C (−1.75 mA/°C), supporting reliable operation up to 125°C ambient. The ADUM6422ABRNZ3 datasheet specifies this value under full-load conditions with appropriate bulk capacitance (0.1 µF || 10 µF) on the VISO rail.
Does the ADUM6422ABRNZ3 require external ferrite beads to meet CISPR 32 Class B emissions?
No, the ADUM6422ABRNZ3 meets CISPR 32/EN 55032 Class B radiated emissions limits on a standard 2-layer PCB without external ferrite beads. This is achieved through optimized internal isoPower modulation and integrated EMI suppression - a key differentiator confirmed in the ADUM6422ABRNZ3 datasheet Rev. C test reports.
What is the channel direction configuration of the ADUM6422ABRNZ3?
The ADUM6422ABRNZ3 has two forward-direction channels (IN→OUT) and two reverse-direction channels (OUT→IN), enabling full-duplex isolated communication such as SPI with separate MISO/MOSI paths or dual-channel isolated UART. This differs from ADUM6421ABRNZ3 (3F/1R) and ADUM6420ABRNZ3 (4F), as specified in the ADUM6422ABRNZ3 pin function table.
Is the ADUM6422ABRNZ3 qualified for automotive applications?
Yes, the ADUM6422ABRNZ3 is AEC-Q100 qualified (Grade 1: −40°C to +125°C), with full qualification testing performed per the AEC-Q100 standard. This makes it suitable for automotive applications including on-board chargers, battery management systems, and traction inverter controls - as explicitly stated in the ADUM6422ABRNZ3 datasheet Features section.
What isolation voltage rating does the ADUM6422ABRNZ3 support?
The ADUM6422ABRNZ3 is UL recognized for 5000 V rms isolation for 1 minute (per UL 1577), with a maximum repetitive peak isolation voltage (VIORM) of 566 V. It also holds VDE V 0884-11 certification (pending at time of datasheet Rev. C) and complies with IEC 62368-1, IEC 61010-1, and IEC 60601-1 standards - confirming reinforced insulation capability.
ADUM6422ABRNZ3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- IsoPower®, iCoupler®
- Package/Case:
- 28-BSSOP (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- Yes
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 75kV/µs
- Data Rate:
- 100Mbps
- Propagation Delay tpLH / tpHL (Max):
- 17ns, 17ns
- Pulse Width Distortion (Max):
- 5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Grade:
- -
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-SOIC-W-FP
ADUM6422ABRNZ3 FAQ
1.How can I place an order for ADUM6422ABRNZ3 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6422ABRNZ3 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 ADUM6422ABRNZ3 reliable?
The price and inventory of ADUM6422ABRNZ3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6422ABRNZ3 is usually 5 days.
3.What payment methods are accepted for ADUM6422ABRNZ3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6422ABRNZ3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6422ABRNZ3?
ADUM6422ABRNZ3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6422ABRNZ3 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 ADUM6422ABRNZ3?
For technical support, including ADUM6422ABRNZ3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6422ABRNZ3 requirements.
6.How does Aetrix verify that ADUM6422ABRNZ3 is sourced from the original manufacturer or authorized distributors?
All ADUM6422ABRNZ3 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 ADUM6422ABRNZ3 meets industry standards.
7.What is the process for return or replacement of ADUM6422ABRNZ3?
All ADUM6422ABRNZ3 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6422ABRNZ3, 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 ADUM6422ABRNZ3 part is unused and in its original packaging.
Return procedure for ADUM6422ABRNZ3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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