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Analog Devices Inc. ADUM4402WARWZ
- Part No.:
- ADUM4402WARWZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Isolators
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
ADUM4402WARWZ.pdf
- Description:
- DGTL ISO 5000VRMS 4CH GP 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,250
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Product details
Overview
ADUM4402WARWZ from Analog Devices is a quad-channel automotive-grade digital isolator using iCoupler® transformer-based isolation, providing 5 kVRMS reinforced insulation, bidirectional 0–10 Mbps data transmission, and 3.135–5.5 V dual-supply operation with level translation. It serves as a high-reliability signal barrier in battery monitor and motor drive subsystems.
For engineers reviewing the ADUM4402WARWZ datasheet, ADUM4402WARWZ pinout, ADUM4402WARWZ application, or ADUM4402WARWZ equivalent, this page delivers verified specifications, SOIC-W-16 pin mapping, automotive safety compliance (VDE V 0884-10, UL 1577), thermal derating behavior, and validated alternative options for HEV powertrain designs.
Technical Context
The ADUM4402WARWZ implements four independent unidirectional channels with two inputs on Side 1 (VIA, VIB) and two outputs on Side 2 (VOC, VOD), plus dedicated output enable (VE2) and dual ground/supply pins. Its air-core transformer isolation architecture enables precise timing control with ≤3.5 ns pulse width distortion and ≤6 ns output enable/disable propagation delay.
It supports mixed-voltage operation (e.g., 5 V side 1 / 3.3 V side 2), maintains DC correctness via patented refresh circuitry during power-up or static input conditions, and achieves >25 kV/µs common-mode transient immunity-critical for noisy motor drive gate driver feedback loops.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | DC to 10 Mbps NRZ - supports CAN FD auxiliary signaling and real-time motor control loop feedback. |
| Isolation Rating | 5000 VRMS for 1 min (UL 1577); VIORM = 849 VPEAK - meets reinforced insulation requirements per IEC 60950-1 and VDE V 0884-10. |
| Supply Range | 3.135 V to 5.5 V per side - enables interoperability between 3.3 V microcontrollers and 5 V analog front-ends. |
| Pulse Width Distortion | ≤3.5 ns (WB grade) - ensures deterministic timing in PWM capture and encoder interface applications. |
| Operating Temperature | −40°C to +125°C - qualified for under-hood automotive use per AEC-Q100 stress test guidelines. |
| Power Consumption | 1.2 mA/channel @ 1 Mbps (3.3 V), 4.3 mA/channel @ 10 Mbps (5 V) - reduces thermal load in compact battery management modules. |
| Common-Mode Immunity | >25 kV/µs - sustains reliable communication during IGBT switching transients in traction inverters. |
Pinout & Package
ADUM4402WARWZ uses a 16-lead SOIC wide-body (RW-16) package with 8.0 mm minimum creepage and 7.7 mm clearance, optimized for reinforced insulation in automotive PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | VDD1 / VDD2 | Independent supply rails for isolated sides - allows level-shifting between 3.3 V MCU and 5 V sensor interface. |
| 2, 8, 9, 15 | GND1 / GND2 | Dedicated ground returns per side - mandatory separation prevents noise coupling across isolation barrier. |
| 3–6 | VIA–VID | Side 1 logic inputs - configured as two input channels (A, B) in ADUM4402W variant per functional diagram. |
| 11–14 | VOD–VOA | Side 2 logic outputs - provides two output channels (C, D) with tristate capability via VE2. |
| 10 | VE2 | Active-high output enable for Side 2 - disables VOC/VOD outputs to prevent bus contention during system reset. |
| 7 | NC | No-connect pin - recommended to tie to GND1 to minimize parasitic coupling in high-noise environments. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q100 Grade 1 qualified - validated for −40°C to +125°C ambient operation in hybrid electric vehicle systems. |
| Output enable control | VE2 pin enables hardware-gated tristate of Side 2 outputs - eliminates need for external bus buffers in shared communication lines. |
| DC-correct refresh | Patented internal refresh ensures output state retention during prolonged input inactivity - critical for safety-critical monitoring paths. |
| Low EMI transformer coupling | iCoupler® monolithic air-core transformers replace LEDs and photodiodes - eliminates LED aging and improves CMTI over optocouplers. |
| System-level ESD hardening | Enhanced layout and circuit design per IEC 61000-4-x - reduces need for external TVS diodes in battery pack interconnects. |
Applications
| Battery Monitor System | Motor Drive Feedback Interface |
|---|---|
Use Scenario: Isolating cell voltage and temperature measurements from high-voltage battery stack to low-voltage MCU domain. IC Role / Device Role / Timing Role: Quad-channel isolator transmitting ADC readouts and fault flags across 400–800 V DC barrier with <3.5 ns channel matching. Use Value: Enables simultaneous sampling of 4 sensor channels without skew-induced measurement error in ISO 26262 ASIL-B compliant BMS. |
Use Scenario: Transmitting PWM gate signals and current-sense feedback from inverter stage to controller in traction motor drives. IC Role / Device Role / Timing Role: Bidirectional isolator conveying IGBT status and overcurrent alerts with 6 ns enable/disable latency for fast fault shutdown. Use Value: Supports 10 Mbps real-time loop closure while maintaining >25 kV/µs immunity against dv/dt noise from 1200 V SiC switches. |
| Onboard Charger Control | DC-DC Converter Monitoring |
Use Scenario: Galvanically separating digital control signals between AC/DC PFC stage and isolated DC/DC secondary side in OBC units. IC Role / Device Role / Timing Role: Level-translating isolator interfacing 3.3 V DSP with 5 V gate drivers and analog sensing circuits. Use Value: Eliminates level-shifter ICs and reduces BOM count while meeting reinforced insulation requirements for 600 V AC mains input. |
Use Scenario: Isolating telemetry data (output voltage/current, thermal status) from high-side DC-DC converter to vehicle network controller. IC Role / Device Role / Timing Role: Low-power isolator operating at 1 Mbps with 0.9 mA/channel (3.3 V) to extend sleep-mode battery life. Use Value: Reduces quiescent current by >60% versus legacy optocouplers, enabling always-on monitoring in 12 V auxiliary power systems. |
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 |
|---|---|---|---|
| SI8642ED-B-IS | Capacitive isolation; 5 kVRMS; 150°C max junction temp; no integrated refresh circuit. | Lacks guaranteed DC correctness during extended static input - requires external watchdog or periodic toggling. | Preferred where higher temperature margin is needed but system can manage refresh externally. |
| ISO7742FQDWRQ1 | Capacitive isolation; 5 kVRMS; AEC-Q100 Grade 0 (−40°C to +150°C); 100 kV/µs CMTI. | Higher CMTI and wider temp range, but larger 16-pin SSOP package increases PCB area vs. SOIC-W. | Best for next-gen traction inverters requiring extreme dv/dt immunity and extended junction temperature headroom. |
Compared with SI8642ED-B-IS and ISO7742FQDWRQ1, ADUM4402WARWZ offers superior timing determinism (≤3.5 ns PWD) and proven DC-correct operation without firmware intervention-making it optimal for ASIL-B battery monitoring where signal integrity must be guaranteed across power cycles.
Availability
ADUM4402WARWZ is available at Aetrix Electronics and suitable for hybrid electric vehicle battery monitors, motor drive feedback interfaces, onboard charger controls, and DC-DC converter monitoring systems requiring stable component supply across automotive production lifecycles.
Supply support for ADUM4402WARWZ 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.
The ADuM440xW family was designed specifically for automotive powertrain and battery systems requiring reinforced isolation, AEC-Q100 qualification, and robust operation in high-CMTI environments such as EV traction inverters and 48 V mild-hybrid architectures.
FAQ
What is the maximum working voltage supported by ADUM4402WARWZ under reinforced insulation?
ADUM4402WARWZ 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 at rated temperature. The device is tested to 1592 VPEAK (VIORM × 1.875) for 1 second during 100% production screening.
Does ADUM4402WARWZ support bidirectional communication on all four channels?
No, ADUM4402WARWZ implements two unidirectional input channels (VIA, VIB) on Side 1 and two unidirectional output channels (VOC, VOD) on Side 2, as confirmed by its functional block diagram and truth table. Bidirectional capability is achieved only through paired use of complementary variants (e.g., ADUM4401W for reverse direction), not within a single ADUM4402WARWZ device.
How does the VE2 pin function in ADUM4402WARWZ?
The VE2 pin is an active-high output enable control for Side 2 outputs (VOC, VOD). When VE2 is high or left floating (NC), VOC and VOD reflect their respective input states. When VE2 is driven low, both outputs enter high-impedance state within 8 ns. This feature allows dynamic bus arbitration in multi-master systems without external logic.
What is the supply current consumption of ADUM4402WARWZ at 10 Mbps with 5 V supplies?
At 10 Mbps and 5 V operation, ADUM4402WARWZ draws 7.5 mA from VDD1 and 7.5 mA from VDD2 (total 15 mA), as specified in Table 2 of the datasheet for WB grade. This equates to 3.75 mA per channel - significantly lower than optocoupler alternatives and aligned with its low-power design target for automotive subsystems.
Is ADUM4402WARWZ pin-compatible with other members of the ADuM440xW family?
No, ADUM4402WARWZ has a unique pin configuration optimized for its specific channel directionality (inputs on Side 1, outputs on Side 2). It is not pin-compatible with ADUM4400W (4-channel uni-directional, all inputs on Side 1) or ADUM4401W (2 inputs/2 outputs split across sides). Pin mapping must be verified against Figure 3 and Table 23 in the datasheet before PCB layout.
ADUM4402WARWZ 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:
- 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
ADUM4402WARWZ FAQ
1.How can I place an order for ADUM4402WARWZ through Aetrix?
Please submit a Request for Quotation (RFQ) for ADUM4402WARWZ 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 ADUM4402WARWZ reliable?
The price and inventory of ADUM4402WARWZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADUM4402WARWZ is usually 5 days.
3.What payment methods are accepted for ADUM4402WARWZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADUM4402WARWZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADUM4402WARWZ?
ADUM4402WARWZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADUM4402WARWZ 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 ADUM4402WARWZ?
For technical support, including ADUM4402WARWZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADUM4402WARWZ requirements.
6.How does Aetrix verify that ADUM4402WARWZ is sourced from the original manufacturer or authorized distributors?
All ADUM4402WARWZ 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 ADUM4402WARWZ meets industry standards.
7.What is the process for return or replacement of ADUM4402WARWZ?
All ADUM4402WARWZ units undergo pre-shipment inspection (PSI). If there is an issue with ADUM4402WARWZ, 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 ADUM4402WARWZ part is unused and in its original packaging.
Return procedure for ADUM4402WARWZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADUM4402WARWZ Tags
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ISO1212DBQR
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ISO6721BDR
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SI8710AC-B-ISR
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ISO7720FDR
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ISO7721FDR
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SI8710CC-B-ISR
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
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ISO7741DWR
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ISO7741FDWR
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