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Analog Devices Inc. ADUM3402WARWZ
- Part No.:
- ADUM3402WARWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM3402WARWZ.pdf
- Description:
- DGTL ISO 2500VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,991
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Product details
Overview
ADUM3402WARWZ from Analog Devices is a quad-channel, bidirectional digital isolator based on iCoupler® transformer technology, providing reinforced 2500 Vrms isolation, 10 Mbps data rate, and 3.135–5.5 V dual-supply operation with 3.3 V/5 V level translation. It features output enable (VE2), 3.5 ns max pulse width distortion, and operates up to +125°C in automotive and industrial motor drive systems.
For engineers reviewing the ADUM3402WARWZ datasheet, ADUM3402WARWZ pinout, ADUM3402WARWZ application, or ADUM3402WARWZ equivalent, key selection criteria include reinforced insulation rating (VIORM = 560 Vpeak), channel configuration (2 forward / 2 reverse), ESD-enhanced system-level robustness per IEC 61000-4-x, and low quiescent current (1.2–2.8 mA/channel at 3.3 V).
Technical Context
The ADUM3402WARWZ implements four independent galvanic isolation channels using monolithic air-core transformers, enabling precise timing control with ≤3.5 ns pulse width distortion and ≤3.5 ns channel-to-channel matching. Its architecture supports mixed-voltage operation (e.g., 3.3 V side ↔ 5 V side) and includes a patented refresh circuit ensuring DC correctness during power-up, power-down, or static input conditions.
It integrates output enable (VE2) on Side 2 for tristate control of all four outputs, with 6–8 ns enable/disable propagation delay. Safety compliance includes UL 1577 (2500 Vrms/1 min), VDE V 0884-10 (reinforced, VIORM = 560 Vpeak), and CSA approval - validated for automotive-grade temperature range (−40°C to +125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 10 Mbps (NRZ); supports high-speed serial interfaces like SPI, RS-485, and CAN physical layer signaling. |
| Isolation Rating | 2500 Vrms for 1 minute (UL 1577); reinforced insulation with VIORM = 560 Vpeak (VDE V 0884-10). |
| Supply Range | 3.135 V to 5.5 V per side; enables 3.3 V ↔ 5 V level translation across isolation barrier. |
| Pulse Width Distortion | ≤3.5 ns max; ensures minimal duty-cycle degradation in clock or PWM signal isolation. |
| Common-Mode Transient Immunity | >25 kV/µs; maintains signal integrity in noisy motor drive or power converter environments. |
| Quiescent Current | 1.2–2.8 mA per channel at 3.3 V; reduces thermal load in space-constrained automotive modules. |
| Operating Temperature | −40°C to +125°C; qualified for under-hood automotive applications and industrial motor controls. |
Pinout & Package
ADUM3402WARWZ uses a 16-lead SOIC wide-body (RW-16), RoHS-compliant package with creepage/clearance ≥8.1 mm / 7.7 mm and internal clearance ≥0.017 mm. Pin 2 and Pin 8 are internally connected GND1; Pin 9 and Pin 15 are internally connected GND2. VE2 (Pin 10) controls all four outputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1 (Pin 1) | Side 1 supply input | Power source for input-side logic and transformers; accepts 3.135–5.5 V. |
| GND1 (Pins 2, 8) | Side 1 ground reference | Internally tied; both pins must connect to same low-impedance ground plane. |
| VIA–VID (Pins 3–6) | Input channels A–D | Logic inputs referenced to VDD1/GND1; support CMOS levels (VIH = 1.6 V @ 3.3 V, 2.0 V @ 5 V). |
| VDD2 (Pin 16) | Side 2 supply input | Independent power for output-side logic; enables asymmetric voltage operation. |
| GND2 (Pins 9, 15) | Side 2 ground reference | Internally tied; separate from GND1 to maintain galvanic isolation barrier. |
| VE2 (Pin 10) | Output enable (Side 2) | Active-high control: drives VOA–VOD into high-impedance when low; critical for bus arbitration. |
| VOA–VOD (Pins 11–14) | Output channels A–D | CMOS outputs referenced to VDD2/GND2; VOH/VOL specified at ±4 mA load. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional channel configuration | 2 forward + 2 reverse channels (A/B inputs → outputs; C/D outputs → inputs), enabling full-duplex isolated communication. |
| Enhanced system-level ESD reliability | Validated per IEC 61000-4-2/4-4/4-5; layout-aware immunity improvements reduce board-level failure risk. |
| Patented refresh circuit | Maintains DC-correct output state during idle periods or power sequencing, eliminating optocoupler-style data loss. |
| High common-mode transient immunity | >25 kV/µs ensures stable operation in motor drives with fast-switching SiC/GaN inverters. |
| Automotive qualification | AEC-Q100 stress-tested; supports battery monitoring and hybrid electric vehicle (HEV) traction inverter subsystems. |
Applications
| Motor Drive Control | Battery Management System |
|---|---|
Use Scenario: Isolating gate driver signals and feedback loops in 3-phase inverter stages of EV traction motors. IC Role / Device Role / Timing Role: Quad-channel isolator separating MCU PWM outputs (Side 1) from isolated gate drivers and current sense ADCs (Side 2). Use Value: Enables safe 10 Mbps real-time fault reporting and PWM synchronization while maintaining >25 kV/µs noise rejection in high-dV/dt environments. | Use Scenario: Communicating cell voltage and temperature data from high-voltage battery stacks to central controllers. IC Role / Device Role / Timing Role: Isolating I²C or SPI interfaces between analog front-end ICs (on HV side) and microcontrollers (on LV side). Use Value: Provides reinforced 560 Vpeak working voltage and −40°C to +125°C operation required for ASIL-B compliant BMS designs. |
| Industrial PLC I/O Module | Renewable Energy Inverter |
Use Scenario: Digitally isolating digital input/output lines in programmable logic controller backplanes. IC Role / Device Role / Timing Role: Replacing optocouplers in 24 V DC input conditioning and relay/solenoid drive circuits. Use Value: Reduces power consumption by 80–90% vs. optocouplers and eliminates aging-related parameter drift over 15+ year field life. | Use Scenario: Isolating control signals between DSP-based controllers and high-power IGBT/SiC modules in solar string inverters. IC Role / Device Role / Timing Role: Transmitting PWM commands and receiving desaturation fault signals across isolation barrier. Use Value: Supports 10 Mbps update rates for adaptive dead-time control and meets VDE V 0884-10 reinforced insulation requirements for grid-tied equipment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8642ED-B-IS | Capacitive isolation; 5000 Vrms rating; 150 kV/µs CMTI; no integrated refresh circuit. | Higher CMTI suits ultra-fast SiC gate drivers; lacks DC-correctness guarantee during extended static states. | Prefer SI8642ED-B-IS where CMTI >100 kV/µs is mandatory and DC hold time is not critical. |
| ISO7742FQDWRQ1 | Capacitive isolation; AEC-Q100 Grade 1 (−40°C to +125°C); 100 kV/µs CMTI; 10 Mbps; no output enable pin. | Automotive-qualified but lacks VE2 control; requires external logic for bus arbitration. | Choose ISO7742FQDWRQ1 when automotive qualification is primary and tristate control is implemented externally. |
Compared with SI8642ED-B-IS and ISO7742FQDWRQ1, ADUM3402WARWZ provides guaranteed DC correctness via refresh, integrated VE2 for hardware-controlled tristate, and proven ESD robustness in system-level IEC 61000-4-x testing - making it optimal for safety-critical HEV battery monitors and motor control feedback paths.
Availability
ADUM3402WARWZ is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitoring, industrial motor drive control, and renewable energy inverter designs requiring stable component supply, long-term lifecycle assurance, and automotive-grade reliability.
Supply support for ADUM3402WARWZ 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 Norwood, MA.
The ADuM340xW series belongs to Analog Devices' iCoupler® digital isolator product line, designed specifically for replacing optocouplers in automotive, industrial, and energy infrastructure systems demanding high reliability, low power, and reinforced safety certification.
FAQ
What is the maximum data rate supported by the ADUM3402WARWZ?
The ADUM3402WARWZ supports a maximum data rate of 10 Mbps in NRZ format. This is confirmed across all operating conditions (3.3 V, 5 V, and mixed-supply modes) with pulse width distortion limited to 3.5 ns. The device maintains reliable operation up to this rate while meeting propagation delay skew (≤3.5 ns channel-to-channel matching) and common-mode transient immunity (>25 kV/µs) specifications. ADUM3402WARWZ achieves this without external components, making it suitable for high-speed isolated SPI, RS-485, and digital encoder interfaces.
Does the ADUM3402WARWZ support level translation between 3.3 V and 5 V domains?
Yes, the ADUM3402WARWZ supports bidirectional level translation between 3.3 V and 5 V logic domains. Its input thresholds are defined for both voltages (VIH = 1.6 V at 3.3 V, 2.0 V at 5 V; VIL = 0.4 V at 3.3 V, 0.8 V at 5 V), and it operates with independent VDD1 and VDD2 supplies ranging from 3.135 V to 5.5 V. This allows ADUM3402WARWZ to interface a 3.3 V microcontroller to a 5 V isolated gate driver or ADC, with full timing and drive-strength compliance on both sides.
What safety certifications does the ADUM3402WARWZ hold?
The ADUM3402WARWZ holds UL 1577 recognition (2500 Vrms/1 min), CSA Component Acceptance Notice #5A, and VDE V 0884-10 certification for reinforced insulation (VIORM = 560 Vpeak). These approvals are production-tested per standard protocols: 3000 Vrms for 1 second (UL), 1050 Vpeak for 1 second (VDE). The * marking on the package confirms VDE V 0884-10 compliance. ADUM3402WARWZ also meets IEC 60950-1 basic insulation requirements and is qualified for automotive use per AEC-Q100.
How does the output enable (VE2) function work on the ADUM3402WARWZ?
The VE2 pin (Pin 10) is an active-high output enable control for all four outputs (VOA–VOD) on Side 2. When VE2 is high or left unconnected (NC), outputs drive normally. When VE2 is low, all outputs enter high-impedance state within 8 ns. This feature enables bus sharing and hot-swap capability in multi-master systems. ADUM3402WARWZ specifies 6–8 ns enable/disable propagation delay and supports tristate leakage <±10 µA, ensuring clean bus release without contention.
Is the ADUM3402WARWZ suitable for automotive applications?
Yes, the ADUM3402WARWZ is explicitly qualified for automotive applications. It meets AEC-Q100 stress test requirements, operates across −40°C to +125°C ambient temperature, and carries VDE V 0884-10 reinforced insulation certification essential for HEV/EV battery monitoring and motor control. Its enhanced system-level ESD performance per IEC 61000-4-x and 25 kV/µs common-mode transient immunity make ADUM3402WARWZ suitable for under-hood and traction inverter subsystems requiring ASIL-B functional safety compliance.
ADUM3402WARWZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Magnetic Coupling
- Type:
- General Purpose
- Isolated Power:
- No
- Number of Channels:
- 4
- Inputs - Side 1/Side 2:
- 2/2
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 2500Vrms
- Common Mode Transient Immunity (Min):
- 25kV/µs
- Data Rate:
- 1Mbps
- Propagation Delay tpLH / tpHL (Max):
- 100ns, 100ns
- Pulse Width Distortion (Max):
- 40ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3.135V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM3402WARWZ FAQ
1.How can I place an order for ADUM3402WARWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM3402WARWZ 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 ADUM3402WARWZ reliable?
The price and inventory of ADUM3402WARWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM3402WARWZ is usually 5 days.
3.What payment methods are accepted for ADUM3402WARWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM3402WARWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM3402WARWZ?
ADUM3402WARWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM3402WARWZ 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 ADUM3402WARWZ?
For technical support, including ADUM3402WARWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM3402WARWZ requirements.
6.How does Aetrix verify that ADUM3402WARWZ is sourced from the original manufacturer or authorized distributors?
All ADUM3402WARWZ 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 ADUM3402WARWZ meets industry standards.
7.What is the process for return or replacement of ADUM3402WARWZ?
All ADUM3402WARWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM3402WARWZ, 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 ADUM3402WARWZ part is unused and in its original packaging.
Return procedure for ADUM3402WARWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM3402WARWZ Tags
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