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Analog Devices Inc. ADUM4401WBRWZ-RL
- Part No.:
- ADUM4401WBRWZ-RL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4401WBRWZ-RL.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,433
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Product details
Overview
ADUM4401WBRWZ-RL from Analog Devices is a quad-channel, reinforced automotive-grade digital isolator with 5 kVRMS isolation rating, 10 Mbps data rate, and bidirectional channel configuration (A/B/C inputs → A/B/C outputs, D output ← D input). It operates from 3.135 V to 5.5 V on both sides, supports 3.3 V/5 V level translation, and delivers ≤3.5 ns pulse width distortion at 125°C ambient - enabling reliable signal integrity in battery monitor and motor drive subsystems.
For engineers reviewing the ADUM4401WBRWZ-RL datasheet, ADUM4401WBRWZ-RL pinout, ADUM4401WBRWZ-RL application, or ADUM4401WBRWZ-RL equivalent, this page provides verified technical context, WB-grade timing specs, SOIC-W-16 package mapping, automotive safety certifications (VDE V 0884-10, UL 1577), and validated alternative options for hybrid electric vehicle powertrain designs.
Technical Context
The ADUM4401WBRWZ-RL implements iCoupler® monolithic air-core transformer isolation across four independent channels, with dedicated output enable (VE1 on Side 1, VE2 on Side 2) and patented refresh circuitry ensuring DC correctness during power-up, power-down, and static input conditions. Its WB-grade timing guarantees ≤3.5 ns pulse width distortion and ≤3.5 ns channel-to-channel matching at 10 Mbps.
It supports mixed-supply operation (e.g., 5 V side 1 / 3.3 V side 2), delivers >25 kV/µs common-mode transient immunity, and features integrated input glitch filtering plus logic-level thresholds optimized for both 3.3 V (VIH = 1.6 V, VIL = 0.4 V) and 5 V (VIH = 2.0 V, VIL = 0.8 V) interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 10 Mbps (NRZ) - supports CAN FD, SPI, and isolated UART up to 10 Mbps without external clocking. |
| Isolation Rating | 5 kVRMS for 1 minute (UL 1577); VIORM = 849 VPEAK (VDE V 0884-10) - enables reinforced insulation in 400 VRMS automotive battery systems. |
| Pulse Width Distortion | ≤3.5 ns (WB grade) - ensures <1% duty cycle error at 10 Mbps, critical for PWM feedback and encoder signal integrity. |
| Supply Range | 3.135 V to 5.5 V per side - allows direct interfacing with 3.3 V microcontrollers and 5 V analog front-ends across isolation barrier. |
| Operating Temperature | −40°C to +125°C - qualified per AEC-Q100 for under-hood and battery-pack applications. |
| Common-Mode Immunity | >25 kV/µs - maintains signal fidelity during high-di/dt events in motor phase switching and DC-DC converter transients. |
| Power Consumption | 2.5 mA per channel max @ 10 Mbps (5 V), 1.4 mA per channel max @ 1 Mbps (5 V) - reduces thermal load in compact EV control modules. |
Pinout & Package
ADUM4401WBRWZ-RL uses a 16-lead SOIC wide-body package (RW-16), with 8.0 mm minimum creepage and 7.7 mm minimum clearance for reinforced insulation compliance. Pin 1–8 constitute Side 1 (input side), Pin 9–16 constitute Side 2 (output side), and internal GND1/GND2 ties require dual grounding per datasheet layout guidance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDD1, VDD2 | Independent supply pins for isolated sides - enable asymmetric voltage operation (e.g., 5 V MCU ↔ 3.3 V ADC). |
| 2, 8, 9, 15 | GND1, GND2 | Dual ground references - must be connected separately to respective PCB ground planes; Pins 2/8 and 9/15 are internally tied. |
| 3–5, 6 | VIA, VIB, VIC, VOD | Side 1 inputs (A/B/C) and Side 2 output (D) - defines ADUM4401W's 3-input/1-output directional configuration. |
| 11–14, 7 | VOD, VOC, VOB, VOA, VE1 | Side 2 outputs (D/C/B/A) and Side 1 output enable - VE1 controls tristate of VOx outputs on Side 1; no VE2 required for this variant. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 (−40°C to +125°C) - certified for battery management and traction inverter control units. |
| Reinforced insulation | UL 1577 (5 kVRMS), VDE V 0884-10 (VIORM = 849 VPEAK) - eliminates need for external creepage/clearance reinforcement in 400 V systems. |
| Bidirectional level translation | 3.3 V ↔ 5 V logic compatibility on either side - enables seamless interface between legacy 5 V sensors and modern 3.3 V SoCs. |
| Output enable control | VE1 pin on Side 1 - allows dynamic bus contention management in multi-master isolated SPI or I²C topologies. |
| DC-correct refresh | Patented internal refresh at ≤1 Mbps - guarantees output state retention during idle periods or slow-changing signals (e.g., thermistor readings). |
Applications
| Battery Monitor System | Motor Phase Current Sensing |
|---|---|
Use Scenario: Isolating cell voltage and temperature measurements from high-voltage battery stack (up to 800 V) to low-voltage MCU domain. IC Role / Device Role / Timing Role: Quad-channel isolator conveying 3 analog monitor signals (via isolated ADC interface) and 1 status flag, with <3.5 ns PWD preserving sampling timing accuracy. Use Value: Enables precise SOC estimation by maintaining sub-100 ns timing alignment between voltage and current sampling clocks across isolation barrier. |
Use Scenario: Transmitting isolated current-sense amplifier outputs from motor phase legs to gate driver control logic in inverter modules. IC Role / Device Role / Timing Role: Bidirectional isolator carrying PWM feedback (VOA/VOB) and fault signals (VOC/VOD) with >25 kV/µs CMTI tolerance. Use Value: Prevents false overcurrent trips during fast IGBT switching transients, improving inverter reliability and efficiency. |
| Onboard Charger Control | DC-DC Converter Feedback Loop |
Use Scenario: Isolating communication between AC/DC primary controller and secondary-side DC bus regulation in bidirectional OBCs. IC Role / Device Role / Timing Role: Four independent channels handling UART command/response, enable signaling, and fault reporting with 10 Mbps capability. Use Value: Supports real-time charging protocol negotiation (e.g., ISO 15118) while meeting reinforced insulation requirements for 1000 VDC systems. |
Use Scenario: Closing isolated voltage feedback loop for 48 V–12 V DC-DC converters in 48 V mild-hybrid architectures. IC Role / Device Role / Timing Role: Transmitting error amplifier output and synchronous rectifier timing signals across isolation barrier with ≤3.5 ns skew. Use Value: Maintains tight output regulation (<±1%) under dynamic load steps by preserving phase margin in compensated feedback path. |
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-B-IS | 4-channel, 5 kVRMS, 10 Mbps, SOIC-16; capacitive isolation; VIORM = 800 VPEAK; no integrated refresh. | Lacks automotive qualification (AEC-Q100 not claimed); lower CMTI (20 kV/µs); requires external watchdog for DC correctness. | Use where cost sensitivity outweighs automotive certification and DC stability requirements. |
| ISO7741FQDWRQ1 | 4-channel, 5 kVRMS, 100 Mbps, SOIC-16; capacitive isolation; VIORM = 800 VPEAK; AEC-Q100 Grade 1. | Higher speed but higher quiescent current (3.5 mA/ch @ 1 Mbps); no output enable pin; different pinout (no VE1). | Prefer when bandwidth >10 Mbps is needed and board layout allows pinout redesign. |
Compared with SI8641ED-B-IS and ISO7741FQDWRQ1, ADUM4401WBRWZ-RL uniquely combines AEC-Q100 qualification, integrated DC refresh, VE1-controlled tristate, and VDE-reinforced 849 VPEAK working voltage - making it the only option qualified for safety-critical battery monitor and inverter gate driver feedback in ISO 26262 ASIL-B systems.
Availability
ADUM4401WBRWZ-RL is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitoring, motor drive control, and onboard charger communication requiring stable component supply across extended automotive lifecycles.
Supply support for ADUM4401WBRWZ-RL 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 since 1965.
The ADuM4400W/ADuM4401W/ADuM4402W family was designed specifically for automotive powertrain and energy storage systems requiring reinforced isolation, AEC-Q100 compliance, and robust operation at 125°C ambient.
FAQ
What is the maximum working voltage supported by ADUM4401WBRWZ-RL under reinforced insulation?
ADUM4401WBRWZ-RL supports a maximum continuous working voltage of 846 VPEAK (565 VRMS bipolar, 846 VDC) per IEC 60950-1 and VDE V 0884-10. This is validated by VIORM = 849 VPEAK and production-tested at 1592 VPEAK per Method b1. The rating applies to reinforced insulation in automotive battery systems up to 800 VDC nominal.
Does ADUM4401WBRWZ-RL support mixed-voltage operation between 3.3 V and 5 V domains?
Yes, ADUM4401WBRWZ-RL fully supports mixed-supply operation: VDD1 and VDD2 may be independently set to 3.135 V–5.5 V. Tables 7–12 confirm functional specifications for 5 V/3.3 V and 3.3 V/5 V configurations, including correct VIH/VIL thresholds and output drive strength on both sides - enabling direct interfacing between 3.3 V microcontrollers and 5 V sensor interfaces.
How does the VE1 pin function in ADUM4401WBRWZ-RL?
In ADUM4401WBRWZ-RL, VE1 is an active-high output enable pin on Side 1. When VE1 is high or left unconnected (NC), VOx outputs on Side 1 (VOA–VOD) are enabled and follow their respective inputs. When VE1 is low, all Side 1 outputs enter high-impedance state. This allows dynamic bus sharing in isolated SPI or parallel data paths without external multiplexers.
What is the propagation delay skew between channels in ADUM4401WBRWZ-RL?
ADUM4401WBRWZ-RL (WB grade) specifies ≤3.5 ns codirectional channel-to-channel matching (tPSKCD) and ≤6 ns opposing-direction matching (tPSKOD) over −40°C to +125°C. This low skew ensures synchronized sampling of multi-phase motor currents or simultaneous triggering of isolated gate drivers within tight timing budgets.
Is ADUM4401WBRWZ-RL qualified for automotive applications per AEC-Q100?
Yes, ADUM4401WBRWZ-RL is explicitly qualified per AEC-Q100 Grade 1 (−40°C to +125°C ambient), with full validation of electrical performance, thermal cycling, and humidity testing. The "W" suffix in the part number denotes automotive qualification, and the datasheet confirms compliance in the Automotive Products section and Table 17 (Recommended Operating Conditions).
ADUM4401WBRWZ-RL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 10Mbps
- Propagation Delay tpLH / tpHL (Max):
- 36ns, 36ns
- Pulse Width Distortion (Max):
- 3.5ns
- Rise / Fall Time (Typ):
- 2.5ns, 2.5ns
- Voltage - Supply:
- 3V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
ADUM4401WBRWZ-RL FAQ
1.How can I place an order for ADUM4401WBRWZ-RL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4401WBRWZ-RL 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 ADUM4401WBRWZ-RL reliable?
The price and inventory of ADUM4401WBRWZ-RL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4401WBRWZ-RL is usually 5 days.
3.What payment methods are accepted for ADUM4401WBRWZ-RL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4401WBRWZ-RL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4401WBRWZ-RL?
ADUM4401WBRWZ-RL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4401WBRWZ-RL 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 ADUM4401WBRWZ-RL?
For technical support, including ADUM4401WBRWZ-RL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4401WBRWZ-RL requirements.
6.How does Aetrix verify that ADUM4401WBRWZ-RL is sourced from the original manufacturer or authorized distributors?
All ADUM4401WBRWZ-RL 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 ADUM4401WBRWZ-RL meets industry standards.
7.What is the process for return or replacement of ADUM4401WBRWZ-RL?
All ADUM4401WBRWZ-RL units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4401WBRWZ-RL, 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 ADUM4401WBRWZ-RL part is unused and in its original packaging.
Return procedure for ADUM4401WBRWZ-RL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4401WBRWZ-RL Tags
-
ISO1212DBQR
Texas Instruments
-
ISO6721BDR
Texas Instruments
-
SI8710AC-B-ISR
Skyworks Solutions Inc.
-
ISO7720FDR
Texas Instruments
-
ISO7721DR
Texas Instruments
-
ISO7721FDR
Texas Instruments
-
SI8710CC-B-ISR
Skyworks Solutions Inc.
-
ISO6741FQDWRQ1
Texas Instruments
-
ISO7721DWVR
Texas Instruments
-
ISO7762FDBQR
Texas Instruments
-
ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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