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Analog Devices Inc. ADUM6028-3WBRIZ
- Part No.:
- ADUM6028-3WBRIZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- DC DC Converters
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM6028-3WBRIZ.pdf
- Description:
- ISOPOWER 5KV, LOWEMI,300MW PWR,
- Quantity:
- Payment:
- Shipping:
Inventory:2,312
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Product details
Overview
ADuM6028-3WBRIZ from Analog Devices is a 5 kV rms reinforced-isolation, 3.3 V input to 3.3 V output dc-to-dc converter delivering up to 60 mA output current in an 8-lead SOIC_IC package with 8.3 mm creepage and clearance. It integrates iCoupler® transformer-based isolation and meets CISPR22 Class B emissions on 2-layer PCBs. It is AEC-Q100 qualified and used for isolated RS-485/CAN transceiver bias and automotive on-board charger auxiliary supplies.
For engineers reviewing the ADuM6028-3WBRIZ datasheet, ADuM6028-3WBRIZ pinout, ADuM6028-3WBRIZ application, or ADuM6028-3WBRIZ equivalent, this page delivers verified specifications, safety-rated insulation data, thermal derating behavior, functional pin definitions, and validated alternatives for industrial and automotive isolated power design.
Technical Context
The ADuM6028-3WBRIZ implements a high-frequency (180 MHz) transformer-based isoPower® architecture with 625 kHz PWM control to regulate its 3.3 V isolated output from a 3.3 V primary supply. Its internal chip-scale transformer enables full 5 kV rms isolation without external magnetics.
It features undervoltage lockout (rising threshold 2.9 V, falling 2.5 V), thermal shutdown at 154°C with 10°C hysteresis, and reinforced insulation certified per DIN EN IEC 60747-17 (VIORM = 565 V peak, VISO = 5000 V rms). Output ripple is 50 mV p-p at 54 mA load with 0.1 µF||10 µF bypass capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5000 V rms for 1 minute - meets UL 1577, IEC/EN/CSA 62368-1, and IEC/CSA 60601-1 safety requirements for reinforced insulation. |
| Output Current | 60 mA max at 3.3 V - supports isolated gate drives, sensor interfaces, and transceiver bias in space-constrained designs. |
| Input/Output Voltage | 3.3 V primary to 3.3 V isolated secondary - eliminates need for external LDO or regulator when powering 3.3 V logic-side peripherals. |
| Efficiency | 33% at 60 mA - optimized for low-noise, low-EMI operation rather than peak efficiency; enables Class B compliance on 2-layer PCBs. |
| Package | 8-lead SOIC_IC, wide-body - provides 8.3 mm creepage/clearance for pollution degree 2, altitude ≤2000 m per IEC 62368-1. |
| Thermal Resistance | θJA = 80°C/W - requires careful thermal layout for continuous 60 mA operation above 85°C ambient. |
| Regulatory Approvals | AEC-Q100 qualified; CQC GB 4943.1; VDE 0884-17 (reinforced); UL, CSA, TÜV SÜD certified - suitable for automotive OBC and medical auxiliary supplies. |
Pinout & Package
ADuM6028-3WBRIZ uses an 8-lead SOIC_IC wide-body package with input and output sides physically separated. Pins 1–4 form the primary side (GND1, PDIS, VDDP), while pins 5–8 form the isolated secondary side (GNDISO, VISO). The device is internally configured as a 2-terminal isolator: primary-side pins are shorted together, and secondary-side pins are shorted together.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4 | GND1 | Primary-side ground reference - must be connected to common primary ground plane; multiple pins reduce impedance and improve EMI performance. |
| 3 | PDIS | Power disable control - logic high disables VISO output; tied to GND1 to enable; no pull-up required. |
| 5 | VDDP | 3.3 V primary supply input - operates from 3.0 V to 3.6 V; UVLO rising threshold is 2.9 V. |
| 6, 7, 8 | GNDISO | Isolated secondary ground - forms return path for VISO; must be kept separate from primary ground to maintain isolation integrity. |
| 5 | VISO | 3.3 V regulated isolated output - delivers up to 60 mA; output ripple is 50 mV p-p with recommended 0.1 µF||10 µF bypass. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated isoPower® DC/DC | Eliminates external transformers, regulators, and feedback circuits - reduces BOM count and board area by >50% vs discrete isolated supplies. |
| CISPR22 Class B compliance | Meets radiated emissions limits on standard 2-layer PCBs without ferrites or shielding - simplifies EMC validation for industrial and automotive systems. |
| Reinforced isolation (5 kV rms) | Supports 2 MOPP medical (IEC 60601-1) and automotive high-voltage system separation - enables safe interface between battery domains and low-voltage control logic. |
| AEC-Q100 qualification | Rated for −40°C to +125°C operation with full thermal derating - validated for under-hood automotive applications including on-board chargers. |
| Low inter-winding capacitance | 2.2 pF input-to-output capacitance - minimizes common-mode noise coupling and improves transient immunity (>200 kV/µs CMTI). |
Applications
| RS-485/CAN Transceiver Bias | Automotive On-Board Charger (OBC) |
|---|---|
Use Scenario: Powering isolated RS-485 or CAN transceivers in factory automation PLCs where ground loops and noise disrupt communication. IC Role / Device Role / Timing Role: Provides galvanically isolated 3.3 V bias supply to transceiver VCC2 pin, decoupling signal-side logic from bus-side ground. Use Value: Enables robust differential communication across noisy industrial environments without requiring external isolated DC/DC modules or split-rail supplies. |
Use Scenario: Supplying auxiliary power to isolated gate drivers and microcontrollers in high-voltage EV on-board chargers. IC Role / Device Role / Timing Role: Delivers reinforced-isolation 3.3 V power to SiC MOSFET gate drivers and MCU peripherals on the secondary side of the main DC/DC stage. Use Value: Meets AEC-Q100 and IEC 60601-1 2-MOPP requirements while fitting into compact OBC control boards with strict EMI constraints. |
| Isolated Sensor Interface | Industrial PLC I/O Modules |
Use Scenario: Powering isolated analog front-ends (e.g., ADCs, current shunt amplifiers) in motor drive current sensing or temperature monitoring circuits. IC Role / Device Role / Timing Role: Supplies clean, regulated 3.3 V to isolated signal conditioning circuitry, referenced to sensor-side ground. Use Value: Maintains measurement accuracy by eliminating ground-referenced noise injection and enabling true single-point grounding on the sensor side. |
Use Scenario: Providing isolated auxiliary power to digital I/O channel ASICs in modular PLC backplanes where field-side and controller-side grounds differ. IC Role / Device Role / Timing Role: Powers isolated level-shifters and optocoupler drivers on the field-side of I/O modules, ensuring fault containment. Use Value: Supports hot-swap capability and system-level safety certification by maintaining 8.3 mm creepage and reinforced insulation across all I/O channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar isolated dc-to-dc converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADuM6028-5WBRIZ | 5 V input / 3.3 V output; same 60 mA output, but higher input voltage range (4.5–5.5 V) and different UVLO thresholds. | Used where primary-side rail is 5 V (e.g., legacy industrial controllers), not 3.3 V; incompatible with 3.3 V-only systems. | Select ADuM6028-5WBRIZ only if VDDP ≥ 4.5 V is available; ADuM6028-3WBRIZ is mandatory for 3.3 V primary operation. |
| ADM3053BRWZ | Integrated CAN transceiver + isolated DC/DC (50 mA @ 5 V); includes CAN driver/receiver; larger 20-lead SOIC package. | Combines signal and power isolation in one IC; suited for CAN node designs needing both functions, not standalone bias supply. | Choose ADM3053BRWZ when consolidating CAN PHY and isolated power; use ADuM6028-3WBRIZ when adding isolated power to existing non-CAN interfaces like RS-485 or sensors. |
Compared with ADuM6028-5WBRIZ, ADuM6028-3WBRIZ enables direct 3.3 V primary operation without pre-regulation, reducing component count and thermal stress. Compared with ADM3053BRWZ, it offers smaller footprint and lower cost for pure isolated power needs without integrated signal transceivers.
Availability
ADuM6028-3WBRIZ is available at Aetrix Electronics and suitable for automotive on-board chargers, isolated RS-485/CAN systems, and industrial PLC I/O modules requiring stable component supply with long-term lifecycle support.
Supply support for ADuM6028-3WBRIZ 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, headquartered in Wilmington, MA.
The ADuM6028-3WBRIZ belongs to the isoPower® family of integrated isolated dc-to-dc converters, designed specifically to replace discrete isolation solutions in space-, noise-, and safety-critical applications across automotive, industrial, and medical markets.
FAQ
What is the maximum continuous output current of the ADuM6028-3WBRIZ at 105°C ambient?
The ADuM6028-3WBRIZ delivers up to 60 mA at 25°C, but output current is derated by 2 mA/°C above 105°C ambient. At 105°C, the maximum continuous output current remains 60 mA; derating begins at TA > 105°C, reaching 40 mA at 115°C and 20 mA at 125°C. This thermal behavior is defined in Table 6 and Figure 4 of the Rev. G datasheet.
Does the ADuM6028-3WBRIZ require external components for basic operation?
Yes - the ADuM6028-3WBRIZ requires at minimum a 0.1 µF ceramic capacitor and a 10 µF bulk capacitor (both placed close to VISO and GNDISO pins) to meet specified output ripple (50 mV p-p) and stability. No external transformer, feedback network, or compensation components are needed - the regulation loop and isolation barrier are fully integrated.
Can the ADuM6028-3WBRIZ be used in medical equipment requiring 2 MOPP isolation?
Yes - the ADuM6028-3WBRIZ is certified to IEC/CSA 60601-1 with reinforced insulation (2 MOPP) at 50 V rms working voltage and 5000 V rms withstand rating. Its VDE 0884-17 approval (VIORM = 565 V peak) and CQC GB 4943.1 certification confirm compliance for patient-connected auxiliary power applications when used within rated conditions.
What is the purpose of the PDIS pin on the ADuM6028-3WBRIZ?
The PDIS (Power Disable) pin on the ADuM6028-3WBRIZ controls output enable/disable: tying PDIS to GND1 enables the VISO output, while applying a logic high (≥2.0 V) disables it. It is not internally pulled - leaving PDIS floating may cause undefined behavior. No external pull-up or pull-down is required if always enabled.
How does the ADuM6028-3WBRIZ achieve CISPR22 Class B emissions compliance?
The ADuM6028-3WBRIZ achieves CISPR22 Class B compliance through integrated spread-spectrum modulation, optimized transformer winding geometry, and internal filtering - all implemented within the monolithic iCoupler die. When mounted on a standard 2-layer PCB with recommended layout (including ground stitching and 8.3 mm creepage), it meets limits without external ferrites or metal shielding.
ADUM6028-3WBRIZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- IsoPower®, iCoupler®
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Type:
- Isolated Module
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 3V
- Voltage - Input (Max):
- 3.6V
- Voltage - Output 1:
- 3.3V
- Voltage - Output 2:
- -
- Voltage - Output 3:
- -
- Voltage - Output 4:
- -
- Current - Output (Max):
- 100mA
- Power (Watts):
- 330 mW
- Voltage - Isolation:
- 5 kV
- Applications:
- ITE (Commercial), Laboratory, Medical
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Efficiency:
- 33%
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC-IC
- Control Features:
- -
- Approval Agency:
- CSA, CQC, VDE, UL
- Standard Number:
- 61010-1; 60601-1; 60950-1
ADUM6028-3WBRIZ FAQ
1.How can I place an order for ADUM6028-3WBRIZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM6028-3WBRIZ 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 ADUM6028-3WBRIZ reliable?
The price and inventory of ADUM6028-3WBRIZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM6028-3WBRIZ is usually 5 days.
3.What payment methods are accepted for ADUM6028-3WBRIZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM6028-3WBRIZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM6028-3WBRIZ?
ADUM6028-3WBRIZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM6028-3WBRIZ 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 ADUM6028-3WBRIZ?
For technical support, including ADUM6028-3WBRIZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM6028-3WBRIZ requirements.
6.How does Aetrix verify that ADUM6028-3WBRIZ is sourced from the original manufacturer or authorized distributors?
All ADUM6028-3WBRIZ 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 ADUM6028-3WBRIZ meets industry standards.
7.What is the process for return or replacement of ADUM6028-3WBRIZ?
All ADUM6028-3WBRIZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM6028-3WBRIZ, 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 ADUM6028-3WBRIZ part is unused and in its original packaging.
Return procedure for ADUM6028-3WBRIZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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