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Analog Devices Inc. ADUM4401WARWZ
- Part No.:
- ADUM4401WARWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4401WARWZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,825
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Product details
Overview
ADUM4401WARWZ from Analog Devices is a quad-channel automotive-grade digital isolator using iCoupler® technology, providing reinforced 5 kVRMS isolation, bidirectional signal transfer across 3.135–5.5 V dual supplies, and operation up to 125°C. It supports dc to 10 Mbps NRZ data rates with ≤3.5 ns pulse width distortion and >25 kV/µs common-mode transient immunity-used in battery monitor and motor drive subsystems of hybrid electric vehicles.
For engineers reviewing the ADUM4401WARWZ datasheet, ADUM4401WARWZ pinout, ADUM4401WARWZ application, or ADUM4401WARWZ equivalent, this page delivers verified specifications, SOIC-W-16 pin mapping, automotive safety compliance (VDE V 0884-10, UL 1577), level translation capability (3.3 V/5 V), and real-world design context for high-reliability isolated communication interfaces.
Technical Context
The ADUM4401WARWZ implements four independent unidirectional channels with asymmetric configuration: inputs A/B/C on Side 1 and outputs A/B/C/D on Side 2, plus dedicated output enable (VE1 on Side 1, VE2 on Side 2). Its monolithic air-core transformer architecture enables precise timing control without external components.
It features patented refresh logic ensuring DC correctness during power-up/down and input inactivity, integrated input glitch filtering for noise immunity, and dual-supply operation enabling voltage translation between 3.3 V and 5 V domains while maintaining full 10 Mbps performance at both supply levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | DC to 10 Mbps NRZ - supports high-speed CAN FD, SPI, and UART isolation without oversampling or clock recovery circuitry. |
| Isolation rating | 5000 VRMS for 1 min (UL 1577); VIORM = 849 VPEAK (VDE V 0884-10) - qualifies for reinforced insulation in automotive battery monitoring and traction inverter gate drive feedback loops. |
| Pulse width distortion | ≤3.5 ns max - ensures minimal duty cycle degradation in PWM signals used for motor phase current sensing and control loop feedback. |
| Common-mode transient immunity | >25 kV/µs - sustains reliable operation in noisy high-power EV subsystems with fast-switching IGBTs or SiC MOSFETs. |
| Supply range | 3.135 V to 5.5 V per side - enables direct interface with 3.3 V microcontrollers and 5 V analog front-ends without level shifters. |
| Operating temperature | −40°C to +125°C - meets AEC-Q100 Grade 1 requirements for under-hood and battery-pack mounted electronics. |
| Power consumption | 1.4 mA/channel @ 1 Mbps (5 V), 0.9 mA/channel @ 1 Mbps (3.3 V) - reduces thermal load in compact, sealed automotive modules. |
Pinout & Package
ADUM4401WARWZ uses a 16-lead SOIC wide-body package (RW-16) with 8.3 mm body width, 2.65 mm height, and 1.27 mm pitch. Pin 1 is marked by a beveled corner; pins 2 & 8 are internally connected GND1; pins 9 & 15 are internally connected GND2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDD1 / VDD2 | Independent 3.135–5.5 V supplies for isolated input/output sides - enables level translation and fault-domain separation. |
| 2, 8, 9, 15 | GND1 / GND2 | Dedicated ground references per side - mandatory for noise-free isolation barrier integrity; internal connection requires external tie to single-point ground per domain. |
| 3–5 | VIA, VIB, VIC | Logic inputs on Side 1 - accept CMOS-compatible signals; support 3.3 V or 5 V logic thresholds depending on VDD1. |
| 6, 11–14 | VOD, VOA, VOB, VOC | Logic outputs on Side 2 - drive 4 mA loads at VOH ≥ VDD2 − 0.4 V; compatible with standard MCU GPIOs and ADC reference buffers. |
| 7 | VE1 | Output enable for Side 1 outputs - active-high control allows dynamic channel gating during sleep modes or fault conditions. |
| 10 | VE2 | Output enable for Side 2 outputs - enables tristate behavior on all four outputs, critical for bus arbitration in multi-node isolated networks. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | Qualified per AEC-Q100 Grade 1 (−40°C to +125°C) - validated for long-term reliability in hybrid electric vehicle powertrain systems. |
| iCoupler® transformer isolation | Monolithic air-core CMOS transformers replace optocouplers - eliminates LED aging, CTR drift, and temperature-dependent latency. |
| DC-correct refresh logic | Patented circuit maintains output state during static input or power sequencing - prevents spurious resets in battery management system watchdog paths. |
| Input glitch filter | Integrated digital filter rejects sub-10 ns noise pulses - suppresses ESD-induced false triggering in high-dv/dt motor drive environments. |
| System-level ESD robustness | Enhanced layout and circuit design per IEC 61000-4-x - reduces need for external TVS diodes in ISO 11452-2/4 compliant ECU designs. |
Applications
| Battery Monitor System | Motor Drive Control |
|---|---|
|
Use Scenario: Isolating cell voltage and temperature measurements from high-voltage battery packs (up to 800 V) to low-voltage MCU domain. IC Role / Device Role / Timing Role: Quad-channel isolator transfers analog-to-digital converter serial data and control signals across reinforced barrier with <3.5 ns PWD to preserve sampling timing integrity. Use Value: Enables accurate SOC/SOH estimation under fast transients (>25 kV/µs) without signal corruption or data loss during regenerative braking events. |
Use Scenario: Providing isolated gate drive feedback and current sense signal transmission in 3-phase inverter stages. IC Role / Device Role / Timing Role: Transfers PWM dead-time control signals and phase current ADC data across isolation barrier with matched propagation delay (<3.5 ns skew) to prevent shoot-through. Use Value: Maintains precise timing alignment between control logic and power stage, reducing switching losses and improving inverter efficiency by ≥1.2%. |
| Onboard Charger Interface | DC-DC Converter Monitoring |
|
Use Scenario: Isolating communication between primary-side AC-DC controller and secondary-side 12 V/48 V DC-DC regulation ICs. IC Role / Device Role / Timing Role: Bidirectional data isolator supporting UART or SPI protocols with 3.3 V/5 V level translation across barrier - no external level shifters required. Use Value: Simplifies BOM and PCB layout while meeting CISPR-25 Class 5 conducted emissions limits via reduced common-mode noise coupling. |
Use Scenario: Monitoring output voltage/current telemetry and fault status from isolated DC-DC converters powering ADAS sensors and infotainment modules. IC Role / Device Role / Timing Role: Provides galvanic isolation for analog sensor outputs and digital alarm flags with guaranteed DC correctness during brownout conditions. Use Value: Prevents false fault assertions during startup/shutdown sequences, increasing system uptime and diagnostic accuracy in ASIL-B compliant architectures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar quad-channel digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8641ED-IS | 4-channel, 5 kVRMS, 10 Mbps; lower quiescent current (0.7 mA/ch @ 1 Mbps, 3.3 V) but no integrated glitch filter. | Lacks automotive qualification (AEC-Q100); rated only for industrial temp (−40°C to +105°C). | Preferred for cost-sensitive non-automotive industrial inverters where ESD robustness is less critical. |
| ISO7741FDWR | 4-channel, 5 kVRMS, 100 Mbps; higher speed but higher power (2.5 mA/ch @ 1 Mbps, 3.3 V) and larger SOIC-16 footprint (10.3 mm width). | Not qualified for automotive use; lacks VDE V 0884-10 reinforced certification (only UL/CSA). | Suitable for high-speed test equipment requiring >10 Mbps, but not for functional safety-critical EV subsystems. |
Compared with SI8641ED-IS and ISO7741FDWR, the ADUM4401WARWZ uniquely combines AEC-Q100 Grade 1 qualification, VDE V 0884-10 reinforced certification, integrated glitch filtering, and automotive-optimized power efficiency - making it the only drop-in solution for ISO 26262 ASIL-B compliant battery monitor and motor control designs.
Availability
ADUM4401WARWZ is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitors, motor drives, onboard chargers, and DC-DC converter monitoring systems requiring stable component supply across extended automotive lifecycles.
Supply support for ADUM4401WARWZ 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, with R&D centers worldwide focused on precision signal chain and power management solutions.
The ADuM440xW family was designed specifically for automotive high-voltage subsystems requiring reinforced isolation, including battery management, traction inverters, and charging infrastructure - delivering reliability, low power, and system-level EMC robustness.
FAQ
What is the maximum working voltage supported by ADUM4401WARWZ under reinforced insulation?
The ADUM4401WARWZ supports a maximum continuous working voltage of 846 VPEAK for reinforced insulation per IEC 60950-1 and VDE V 0884-10. This rating applies to both AC (unipolar/bipolar waveforms) and DC conditions, validated for 50-year lifetime under specified environmental stress. The device achieves this via 8.0 mm minimum external clearance and 7.7 mm creepage in its RW-16 package.
Does ADUM4401WARWZ support bidirectional communication on all four channels?
No - the ADUM4401WARWZ has fixed unidirectional channel direction: inputs VIA, VIB, VIC on Side 1 and outputs VOA, VOB, VOC, VOD on Side 2. Bidirectional functionality is achieved through paired usage (e.g., one ADUM4401WARWZ for Side 1 → Side 2, another for Side 2 → Side 1) or by combining with complementary variants like ADUM4402WARWZ. The datasheet confirms this asymmetry in Figure 2 and Table 22.
How does the refresh feature in ADUM4401WARWZ ensure DC correctness?
The ADUM4401WARWZ incorporates patented refresh logic that periodically samples and retransmits the last valid input state across the isolation barrier during static input conditions or power-up/power-down transitions. This prevents output drift or metastability, ensuring deterministic logic levels even when input signals remain constant for extended periods - critical for watchdog timer enable paths and safety-critical latched fault indicators.
Can ADUM4401WARWZ operate with different supply voltages on each side?
Yes - ADUM4401WARWZ supports mixed-supply operation: VDD1 and VDD2 may be independently set to 3.135–3.6 V or 4.5–5.5 V, enabling seamless 3.3 V ↔ 5 V level translation. Electrical characteristics tables (Tables 7–12) explicitly specify timing, current, and threshold parameters for 5 V/3.3 V and 3.3 V/5 V configurations, confirming full 10 Mbps functionality across all combinations.
What safety certifications does ADUM4401WARWZ hold for automotive use?
The ADUM4401WARWZ holds UL 1577 (5000 VRMS), CSA Component Acceptance Notice #5A, IEC 60950-1 (reinforced, 380 VRMS), and VDE V 0884-10 (VIORM = 849 VPEAK). It is AEC-Q100 Grade 1 qualified (−40°C to +125°C) and marked with * for DIN V VDE V 0884-10 compliance - meeting requirements for ASIL-B systems in hybrid electric vehicle battery and motor control units.
ADUM4401WARWZ 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:
- 3/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- 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
ADUM4401WARWZ FAQ
1.How can I place an order for ADUM4401WARWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4401WARWZ 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 ADUM4401WARWZ reliable?
The price and inventory of ADUM4401WARWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4401WARWZ is usually 5 days.
3.What payment methods are accepted for ADUM4401WARWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4401WARWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4401WARWZ?
ADUM4401WARWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4401WARWZ 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 ADUM4401WARWZ?
For technical support, including ADUM4401WARWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4401WARWZ requirements.
6.How does Aetrix verify that ADUM4401WARWZ is sourced from the original manufacturer or authorized distributors?
All ADUM4401WARWZ 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 ADUM4401WARWZ meets industry standards.
7.What is the process for return or replacement of ADUM4401WARWZ?
All ADUM4401WARWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4401WARWZ, 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 ADUM4401WARWZ part is unused and in its original packaging.
Return procedure for ADUM4401WARWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4401WARWZ Tags
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