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Analog Devices Inc./Maxim Integrated MAX22246CAWA/V+
- Part No.:
- MAX22246CAWA/V+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX22246CAWA/V+.pdf
- Description:
- REINFORCED, FAST, LOW-POWER 2-CH
- Quantity:
- Payment:
- Shipping:
Inventory:143
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Product details
Overview
MAX22246CAWA/V+ from Analog Devices is a reinforced, bidirectional two-channel digital isolator in 8-pin wide SOIC (W8MS+7) package, rated for 5kVRMS withstand voltage (60s), 848VRMS working voltage, and 200Mbps max data rate. It features 7ns typical propagation delay at 3.3V, 50kV/μs CMTI, and operates across –40°C to +125°C - ideal for isolated RS-232/RS-485 transceiver interfaces in automotive BMS and inverters.
For engineers reviewing the MAX22246CAWA/V+ datasheet, MAX22246CAWA/V+ pinout, MAX22246CAWA/V+ application, or MAX22246CAWA/V+ equivalent, this page delivers verified electrical specs, side-A/side-B supply independence (1.71–5.5V), default-high output behavior, AEC-Q100 qualification, and precise isolation barrier performance per IEC 60747-5-5 and UL1577.
Technical Context
The MAX22246CAWA/V+ implements two independent unidirectional channels with opposite data flow directions: IN1→OUT2 (Side A → Side B) and IN2←OUT1 (Side B → Side A), enabling full-duplex isolation of transceiver Tx/Rx lines. Its proprietary capacitive isolation barrier provides reinforced insulation validated to VDE 0884-11 (pending) and certified to UL1577/cUL 5A at 5kVRMS.
Each side supports independent 1.71V–5.5V supplies (VDDA/GNDA and VDDB/GNDB), enabling level translation between disparate logic domains. Undervoltage lockout (1.5–1.66V threshold with 45mV hysteresis) forces outputs to default-high state during supply faults - critical for fail-safe communication in automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS for 60s (VISO); enables compliance with reinforced insulation requirements in EV battery management and industrial motor drives. |
| Working Voltage | 848VRMS (VIOWM); supports continuous operation in high-noise 400V–800V DC-link environments without degradation. |
| Max Data Rate | 200Mbps (C/F variant); sustains high-speed SPI or CAN FD isolation without timing bottlenecks in real-time control loops. |
| Propagation Delay | 7ns typ at VDD = 3.3V; minimizes signal latency in closed-loop feedback paths such as inverter gate driver timing. |
| CMTI | 50kV/μs typ; rejects fast common-mode transients from IGBT switching noise in motor drive power stages. |
| Supply Range | 1.71V–5.5V per side (VDDA & VDDB); allows direct interfacing with 1.8V microcontrollers and 3.3V/5V peripherals without external level shifters. |
| Power @ 1Mbps | 0.78mW/channel @ 1.8V; reduces thermal load in space-constrained automotive modules and extends battery life in portable test equipment. |
Pinout & Package
Package: 8-pin wide-body SOIC (W8MS+7), 8mm creepage and clearance, RoHS-compliant, surface-mountable with JEDEC-standard land pattern 90-100146.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDDA | Side A primary supply input | Bypass to GNDA with 0.1µF ceramic capacitor; sets logic-high level on input side (IN1, IN2) and powers internal isolation circuitry. |
| 2 - OUT1 | Side A output (channel 2) | Drives logic-high or low to GNDA; directionally isolated from IN2 (Side A input), forming reverse-path channel for Rx isolation. |
| 3 - IN2 | Side A input (channel 2) | Receives digital signal referenced to GNDA; output OUT1 mirrors IN2 with 7ns delay - used for isolated receiver data path. |
| 4 - GNDA | Side A ground reference | Return path for VDDA, IN1, IN2, and OUT1; galvanically separated from GNDB by reinforced dielectric barrier. |
| 5 - GNDB | Side B ground reference | Return path for VDDB, IN1, OUT1, and OUT2; must remain physically isolated from GNDA on PCB layout. |
| 6 - OUT2 | Side B output (channel 1) | Drives logic levels to GNDB; directionally isolated from IN1 (Side B input), forming forward-path channel for Tx isolation. |
| 7 - IN1 | Side B input (channel 1) | Receives digital signal referenced to GNDB; output OUT2 mirrors IN1 - used for isolated transmitter data path. |
| 8 - VDDB | Side B primary supply input | Bypass to GNDB with 0.1µF ceramic capacitor; sets logic-high level on output side (OUT1, OUT2) and powers secondary isolation domain. |
Key Features
| Feature | Design Value |
|---|---|
| Reinforced galvanic isolation | Validated to 5kVRMS/60s and 848VRMS continuous per IEC 60747-5-5 - eliminates need for external isolation transformers or optocouplers in safety-critical BMS designs. |
| Default-high output architecture | Outputs assert high when inputs are unpowered or floating - ensures known logic state during MCU reset or supply brownout in automotive ECUs. |
| High CMTI (50kV/μs) | Rejects fast dV/dt noise from SiC/GaN power switches without false triggering - essential for reliable operation in 100kHz+ switching inverters. |
| Independent dual-supply operation | VDDA and VDDB each support 1.71–5.5V range - enables seamless level translation between 1.8V FPGA I/O and 5V analog front-end without discrete translators. |
| AEC-Q100 Grade 0 qualification | Rated for –40°C to +125°C ambient, 100% production tested at both temperatures - meets functional safety requirements for HEV/EV traction inverters and onboard chargers. |
Applications
| Automotive Battery Management System (BMS) | Industrial Isolated RS-485 Transceiver |
|---|---|
Use Scenario: Isolating cell monitor IC communication (e.g., MAX17853) from MCU host across high-voltage battery stack (up to 900V). IC Role / Device Role / Timing Role: Bidirectional digital isolator providing galvanic separation between low-side controller and high-side monitoring domain while preserving full-duplex UART timing integrity. Use Value: Enables safe, high-CMTI, low-latency communication across 5kVRMS barrier without compromising 200Mbps data throughput required for real-time cell voltage reporting. |
Use Scenario: Isolating RS-485 PHY (e.g., MAX3072E) from host MCU in factory automation PLCs exposed to 4kV EFT and surge events. IC Role / Device Role / Timing Role: Dual-channel isolator separating Tx (IN1→OUT2) and Rx (IN2←OUT1) paths to prevent ground loop-induced data corruption in multi-node bus networks. Use Value: Maintains signal fidelity at 20Mbps with <7ns propagation skew, eliminating timing jitter that causes CRC errors in Modbus RTU over long cable runs. |
| Hybrid Electric Vehicle Onboard Charger (OBC) | Motor Drive Gate Driver Interface |
Use Scenario: Isolating digital control signals between AC/DC PFC stage and DC/DC LLC converter in 11kW OBC with split-ground architecture. IC Role / Device Role / Timing Role: Reinforced isolator transferring PWM enable/disable and fault status across 848VRMS working voltage barrier with sub-10ns channel-to-channel skew. Use Value: Guarantees fail-safe shutdown coordination between isolated power stages under transient overvoltage conditions up to ±12.8kV surge (1.2/50μs). |
Use Scenario: Isolating PWM signals from MCU to three-phase IGBT/SiC gate drivers in servo drives requiring precise dead-time control. IC Role / Device Role / Timing Role: Low-jitter (7.5ps RMS clock jitter), low-propagation-delay isolator preserving edge alignment between complementary high-side/low-side gate drive signals. Use Value: Reduces shoot-through risk by minimizing pulse width distortion (<2ns) and propagation delay mismatch (<2ns channel-to-channel), improving inverter efficiency and reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si8622ED-B-IS | 2-channel, 200Mbps, default-high, 5kVRMS, 8-SOIC; CMTI = 35kV/μs (vs. 50kV/μs); no AEC-Q100 qualification. | Lacks automotive qualification and lower CMTI limits use in high-dV/dt HEV inverters; suitable for industrial RS-485 where ambient temp ≤ 105°C. | Select when cost sensitivity outweighs automotive compliance and extreme noise immunity requirements. |
| ISO6721FDWR | 2-channel, 50Mbps (not 200Mbps), default-low, 5kVRMS, 8-SOIC; VDE-certified; AEC-Q100 Grade 1 (–40°C to +125°C). | Half the data rate restricts use in high-speed SPI or CAN FD; default-low behavior requires external pull-ups for fail-safe high assertion. | Choose only if system design mandates TI's ecosystem integration or if 50Mbps suffices and default-low logic aligns with existing firmware. |
Compared with Si8622ED-B-IS and ISO6721FDWR, the MAX22246CAWA/V+ uniquely combines AEC-Q100 Grade 0, 200Mbps speed, 50kV/μs CMTI, and default-high outputs - making it the only option qualified for safety-critical, high-noise, full-duplex automotive power electronics where timing integrity and fail-safe state assurance are non-negotiable.
Availability
MAX22246CAWA/V+ is available at Aetrix Electronics and suitable for automotive battery management systems, hybrid electric vehicle onboard chargers, and industrial isolated fieldbus communications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX22246CAWA/V+ 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 precision instrumentation, industrial automation, and automotive electrification markets.
The MAX22246CAWA/V+ belongs to Analog Devices' MAX2224x family of reinforced digital isolators - engineered specifically for high-reliability, high-speed, low-power isolation in automotive and industrial power conversion systems demanding AEC-Q100 compliance and 5kVRMS safety certification.
FAQ
What is the isolation voltage rating of the MAX22246CAWA/V+?
The MAX22246CAWA/V+ has a maximum withstand isolation voltage (VISO) of 5000VRMS for 60 seconds, a maximum working isolation voltage (VIOWM) of 848VRMS continuous, and a surge rating of ±12.8kV (1.2/50μs). These values are certified per UL1577 and pending VDE 0884-11, confirming its suitability for reinforced insulation in automotive and industrial safety-critical applications.
Does the MAX22246CAWA/V+ support different supply voltages on each side?
Yes, the MAX22246CAWA/V+ supports independent supply rails: VDDA (1.71V–5.5V, referenced to GNDA) and VDDB (1.71V–5.5V, referenced to GNDB). This enables true level translation - for example, interfacing a 1.8V FPGA I/O bank on Side A with a 3.3V RS-485 transceiver on Side B - without external level-shifting components.
What is the default output state of the MAX22246CAWA/V+ during undervoltage conditions?
The MAX22246CAWA/V+ features default-high outputs. When either VDDA or VDDB falls below the undervoltage lockout threshold (1.5–1.66V), both OUT1 and OUT2 automatically assert high - a fail-safe behavior critical for maintaining defined logic states in automotive ECUs during power-up, brownout, or supply sequencing faults.
Is the MAX22246CAWA/V+ qualified for automotive applications?
Yes, the "/V+" suffix denotes AEC-Q100 Grade 0 qualification. The MAX22246CAWA/V+ is fully tested and rated for operation from –40°C to +125°C ambient temperature, with 100% production testing at both extremes. It meets stringent automotive reliability, ESD (±3kV HBM), and surge immunity requirements for use in BMS, OBC, and traction inverter control modules.
How does the MAX22246CAWA/V+ differ from the MAX22245 variant?
The MAX22246CAWA/V+ implements bidirectional channel routing (IN1→OUT2 and IN2←OUT1), making it ideal for isolating transceiver Tx/Rx pairs. In contrast, the MAX22245 routes both channels unidirectionally (IN1→OUT1 and IN2→OUT2), suited for isolated digital I/O or sensor readout. Pinouts differ: MAX22246 uses Pin 2 for OUT1 and Pin 7 for IN1; MAX22245 uses Pin 2 for IN1 and Pin 7 for OUT1.
MAX22246CAWA/V+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Capacitive Coupling
- Type:
- CAN, RS232, RS422, RS485
- Isolated Power:
- No
- Number of Channels:
- 2
- Inputs - Side 1/Side 2:
- 1/1
- Channel Type:
- Unidirectional
- Voltage - Isolation:
- 5000Vrms
- Common Mode Transient Immunity (Min):
- 50kV/µs (Typ)
- Data Rate:
- 200Mbps
- Propagation Delay tpLH / tpHL (Max):
- 9.5ns, 9.9ns
- Pulse Width Distortion (Max):
- 2ns
- Rise / Fall Time (Typ):
- 0.8ns, 1ns (Max)
- Voltage - Supply:
- 1.71V ~ 5.5V
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
MAX22246CAWA/V+ FAQ
1.How can I place an order for MAX22246CAWA/V+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22246CAWA/V+ 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 MAX22246CAWA/V+ reliable?
The price and inventory of MAX22246CAWA/V+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22246CAWA/V+ is usually 5 days.
3.What payment methods are accepted for MAX22246CAWA/V+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22246CAWA/V+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22246CAWA/V+?
MAX22246CAWA/V+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22246CAWA/V+ 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 MAX22246CAWA/V+?
For technical support, including MAX22246CAWA/V+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22246CAWA/V+ requirements.
6.How does Aetrix verify that MAX22246CAWA/V+ is sourced from the original manufacturer or authorized distributors?
All MAX22246CAWA/V+ 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 MAX22246CAWA/V+ meets industry standards.
7.What is the process for return or replacement of MAX22246CAWA/V+?
All MAX22246CAWA/V+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22246CAWA/V+, 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 MAX22246CAWA/V+ part is unused and in its original packaging.
Return procedure for MAX22246CAWA/V+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22246CAWA/V+ Tags
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ISO1212DBQR
Texas Instruments
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ISO6721BDR
Texas Instruments
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SI8710AC-B-ISR
Skyworks Solutions Inc.
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ISO7720FDR
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ISO7721DR
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ISO7721FDR
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SI8710CC-B-ISR
Skyworks Solutions Inc.
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ISO6741FQDWRQ1
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ISO7721DWVR
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ISO7762FDBQR
Texas Instruments
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ISO7741DWR
Texas Instruments
-
ISO7741FDWR
Texas Instruments
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