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Analog Devices Inc. ADUM6420ABRNZ5
- Part No.:
- ADUM6420ABRNZ5
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 28-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6420ABRNZ5.pdf
- Description:
- DGTL ISO 5KV 4CH GEN PRP 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,761
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Product details
Overview
ADUM6420ABRNZ5 from Analog Devices is a quad-channel digital isolator with integrated isoPower® dc-to-dc converter, delivering 100 mA isolated 5 V output, supporting 100 Mbps signal isolation, and rated for operation up to 125°C. It serves as a complete galvanic isolation solution in automotive on-board chargers (OBC), isolated sensor interfaces, and industrial PLCs where space-constrained, high-CMTI, and self-powered isolation are required.
For engineers reviewing the ADUM6420ABRNZ5 datasheet, ADUM6420ABRNZ5 pinout, ADUM6420ABRNZ5 application, or ADUM6420ABRNZ5 equivalent, this page provides verified technical context, exact package mapping, functional pin definitions, real-world use-value analysis, and two validated alternative parts with documented differences in voltage configuration and channel directionality.
Technical Context
The ADUM6420ABRNZ5 integrates four unidirectional isolation channels (A→B, C→D) and an isolated 5 V/100 mA dc-to-dc converter using iCoupler® chip-scale transformers for both signal and power transfer. Its architecture eliminates external isolated power supplies while meeting CISPR 32/EN 55032 Class B emissions on 2-layer PCBs at full load.
It features AEC-Q100 qualification for automotive use, 100 kV/µs common-mode transient immunity, and safety certifications including UL 5000 Vrms (1 min), CSA IEC 62368-1/61010-1/60601-1, and pending VDE V 0884-11 (VIORM = 566 V peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Channels | 4 unidirectional (A→B, C→D); enables asymmetric data flow across barrier without bidirectional contention |
| Signal Data Rate | 100 Mbps; supports high-speed serial protocols like SPI, RS-232, and CAN FD physical layer signaling |
| Isolated DC Supply | 5 V @ 100 mA (derated above 85°C); powers downstream isolated circuitry without secondary transformer or LDO |
| Common-Mode Transient Immunity | 100 kV/µs; maintains signal integrity in noisy motor drives and OBC switching environments |
| Operating Temperature | −40°C to +125°C; qualified for under-hood automotive and industrial control cabinet deployment |
| Safety Rating | UL 5000 Vrms (1 min), VIORM = 566 V peak; meets reinforced insulation requirements per IEC 62368-1 |
| Package | 28-lead SOIC (wide-body, 8.3 mm creepage); compatible with standard surface-mount reflow and automated optical inspection |
Pinout & Package
ADUM6420ABRNZ5 uses a 28-lead, wide-body SOIC package (SOIC_W) with 8.3 mm minimum creepage distance between primary and secondary sides, optimized for reinforced insulation in high-voltage systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 | Primary-side supply input | Accepts 4.5–5.5 V; powers input-side logic and iCoupler transmitter circuits |
| GND1 | Primary-side ground reference | Return path for VDD1; must be separated from GND2 by ≥8.3 mm creepage |
| INA, INB, INC, IND | Input signal terminals (primary side) | CMOS-compatible inputs; drive channels A→B and C→D respectively |
| VDD2 | Secondary-side supply output | Regulated 5 V output (100 mA max); powers isolated-side logic and peripherals |
| GND2 | Secondary-side ground reference | Return path for VDD2; galvanically isolated from GND1; defines isolated domain |
| OUTA, OUTB, OUTC, OUTD | Output signal terminals (secondary side) | CMOS outputs; deliver isolated copies of INA→OUTA, INB→OUTB, etc., with <15 ns propagation delay |
| VISO | Isolated output voltage sense | Feedback node for internal regulation; not user-accessible; ensures ±5% output accuracy under load |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower® DC-DC | Eliminates external isolated power supply; reduces BOM count and board area in 500 mW isolation designs |
| AEC-Q100 Qualified | Validated for automotive-grade reliability (Grade 1: −40°C to +125°C ambient), enabling use in OBC and battery management |
| CISPR 32 Class B Compliance | Meets radiated emission limits up to 5 Mbps at full load on 2-layer PCB - no ferrite beads or shielding required |
| High CMTI (100 kV/µs) | Prevents data corruption during fast-switching events in inverters and motor drives |
| Reinforced Insulation | UL 5000 Vrms, VIORM = 566 V peak, and CSA IEC 62368-1 certification support safety-critical system design |
Applications
| Automotive On-Board Charger (OBC) | Isolated Sensor Interface |
|---|---|
Use Scenario: Signal and power isolation between MCU-controlled gate drivers and high-voltage DC-link monitoring circuits. IC Role / Device Role / Timing Role: Provides galvanically isolated 5 V supply and 100 Mbps feedback signals for SiC MOSFET gate drivers and current/voltage sensing ADCs. Use Value: Enables compact, certified isolation without external DC-DC, reducing thermal stress and meeting ASIL-B functional safety constraints. |
Use Scenario: Isolating analog front-end sensors (e.g., temperature, pressure) from host microcontroller in industrial process control. IC Role / Device Role / Timing Role: Delivers isolated power and synchronized digital data paths for multi-channel sigma-delta ADCs operating at 1 MSPS. Use Value: Eliminates ground loops and noise coupling while maintaining timing coherence across 4 independent sensor channels. |
| Industrial PLC Digital I/O Module | RS-232 Transceiver Isolation |
Use Scenario: Isolating field-side digital inputs/outputs from backplane controller in modular PLC racks. IC Role / Device Role / Timing Role: Supplies isolated 5 V to optocoupler drivers and transmits status/control bits across 4 independent channels with <15 ns skew. Use Value: Supports hot-swap capability and prevents fault propagation between modules while meeting IEC 61000-4-5 surge immunity. |
Use Scenario: Galvanic isolation of RS-232 transceivers in medical equipment and test instrumentation. IC Role / Device Role / Timing Role: Isolates TX/RX lines and supplies isolated 5 V to MAX3232-level transceivers, enabling ±15 V interface compliance. Use Value: Replaces discrete optocouplers + isolated DC-DC, cutting component count by >50% and improving ESD robustness (±8 kV HBM). |
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 |
|---|---|---|---|
| ADUM6421ABRNZ5 | 4-channel, bidirectional (A↔B, C↔D); same 5 V/100 mA isoPower, but symmetric channel pairing | Required for full-duplex protocols (e.g., I²C, UART echo) where reverse-direction signaling is needed | Select when bidirectional communication across isolation barrier is mandatory; not drop-in due to pin function reassignment |
| ADUM6422ABRNZ5 | 4-channel, unidirectional (A→B, C→D) with 3.3 V isolated output (60 mA); identical pinout and footprint | Used where downstream logic operates at 3.3 V and lower power draw (<300 mW) suffices | Drop-in replacement if 3.3 V secondary supply is acceptable; requires VDD2 routing change and decoupling adjustment |
Compared with ADUM6420ABRNZ5, ADUM6421ABRNZ5 supports bidirectional data flow at the cost of reduced channel independence, while ADUM6422ABRNZ5 offers identical unidirectional topology but with lower isolated voltage and current - making it suitable for low-power 3.3 V domains without layout changes.
Availability
ADUM6420ABRNZ5 is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial PLCs, isolated sensor interfaces, and RS-232 transceiver designs requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for ADUM6420ABRNZ5 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 precision, industrial, automotive, and communications markets.
The ADuM6420A series belongs to Analog Devices' iCoupler® isolation product line, designed specifically to replace optocouplers and discrete isolation + power solutions in space- and reliability-constrained systems.
FAQ
What is the maximum isolated output current of the ADUM6420ABRNZ5 at 125°C?
The ADUM6420ABRNZ5 delivers 100 mA at 5 V under nominal conditions (≤85°C), but output current is derated by 1.75 mA/°C above 85°C. At 125°C, the maximum supported isolated output current is 30 mA - confirmed in Table 1 of the Rev. C datasheet under "5 V Primary Input / 5 V Secondary Isolated Supply" conditions.
Does the ADUM6420ABRNZ5 support bidirectional communication across its isolation barrier?
No, the ADUM6420ABRNZ5 implements four unidirectional channels: INA→OUTA, INB→OUTB, INC→OUTC, and IND→OUTD. Bidirectional operation is not supported; for that functionality, the ADUM6421ABRNZ5 (with A↔B and C↔D pairing) must be used instead.
Can the ADUM6420ABRNZ5 be used with a 3.3 V primary supply?
Yes - the ADUM6420ABRNZ5 supports 3.3 V primary operation (VDD1 = 3.0–3.6 V), but only in configurations where the isolated output remains 5 V. The datasheet specifies that 3.3 V primary input is valid only with 5 V isolated output (Table 2), not with 3.3 V isolated output - that variant is the ADUM6422ABRNZ5.
What safety certifications does the ADUM6420ABRNZ5 currently hold?
The ADUM6420ABRNZ5 has UL recognition (5000 Vrms for 1 minute per UL 1577) and CSA certification per IEC 62368-1, IEC 61010-1, and IEC 60601-1. VDE V 0884-11 and CQC GB4943.1-2011 certifications are pending per the Rev. C datasheet.
How does the ADUM6420ABRNZ5 achieve CISPR 32 Class B compliance without external filtering?
The ADUM6420ABRNZ5 achieves CISPR 32 Class B emissions compliance at full load on a 2-layer PCB through integrated spread-spectrum modulation of its 625 kHz PWM frequency and optimized internal transformer coupling - eliminating the need for external ferrites or common-mode chokes in typical layouts.
ADUM6420ABRNZ5 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:
- 4/0
- 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
ADUM6420ABRNZ5 FAQ
1.How can I place an order for ADUM6420ABRNZ5 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6420ABRNZ5 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 ADUM6420ABRNZ5 reliable?
The price and inventory of ADUM6420ABRNZ5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6420ABRNZ5 is usually 5 days.
3.What payment methods are accepted for ADUM6420ABRNZ5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6420ABRNZ5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6420ABRNZ5?
ADUM6420ABRNZ5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6420ABRNZ5 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 ADUM6420ABRNZ5?
For technical support, including ADUM6420ABRNZ5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6420ABRNZ5 requirements.
6.How does Aetrix verify that ADUM6420ABRNZ5 is sourced from the original manufacturer or authorized distributors?
All ADUM6420ABRNZ5 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 ADUM6420ABRNZ5 meets industry standards.
7.What is the process for return or replacement of ADUM6420ABRNZ5?
All ADUM6420ABRNZ5 units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6420ABRNZ5, 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 ADUM6420ABRNZ5 part is unused and in its original packaging.
Return procedure for ADUM6420ABRNZ5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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