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Analog Devices Inc./Maxim Integrated MAX22246CAWA/V+T
- Part No.:
- MAX22246CAWA/V+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Isolators
- Package:
- 8-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX22246CAWA/V+T.pdf
- Description:
- REINFORCED, FAST, LOW-POWER 2-CH
- Quantity:
- Payment:
- Shipping:
Inventory:253
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Product details
Overview
MAX22246CAWA/V+T from Analog Devices is a reinforced, bidirectional two-channel digital isolator in 8-pin wide SOIC package, delivering 200Mbps data rate, 5kVRMS withstand voltage (60s), and 50kV/µs CMTI. It isolates Tx/Rx signal paths between microcontroller and transceiver (e.g., RS-485) while supporting independent 1.71–5.5V supplies on each side for level translation.
For engineers reviewing the MAX22246CAWA/V+T datasheet, MAX22246CAWA/V+T pinout, MAX22246CAWA/V+T application, or MAX22246CAWA/V+T equivalent, key selection criteria include reinforced isolation rating, opposite-direction channel architecture, low 7ns propagation delay at 3.3V, and AEC-Q100 qualification for automotive BMS and inverter designs.
Technical Context
The MAX22246CAWA/V+T implements two unidirectional galvanic isolation channels operating in opposite directions - IN1→OUT1 (Side A to Side B) and IN2←OUT2 (Side B to Side A) - enabling full-duplex isolated communication without external direction control. Its proprietary capacitive isolation barrier achieves reinforced insulation per VDE 0884-11 (pending) and UL1577 certification.
It features independent undervoltage lockout (1.5–1.66V threshold) on both VDDA and VDDB, default-high outputs, and refresh circuitry ensuring output stability during static input conditions. Supply domains are fully decoupled, allowing 1.71–5.5V operation on either side with no sequencing requirement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Isolation Rating | 5kVRMS for 60s - meets reinforced insulation requirements for functional safety in automotive and industrial systems |
| Max Data Rate | 200Mbps - supports high-speed isolated SPI, CAN FD, and RS-485 interfaces |
| Propagation Delay | 7ns (typ) at VDD = 3.3V - enables tight timing budgets in real-time control loops |
| CMTI | 50kV/µs (typ) - rejects fast common-mode transients in motor drives and inverters |
| Supply Range | 1.71V to 5.5V per side - allows direct interfacing with 1.8V, 2.5V, 3.3V, and 5V logic domains |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive and industrial ambient environments |
| AEC-Q100 Grade | Grade 0 - certified for automotive applications including battery management and traction inverters |
Pinout & Package
Package: 8-pin wide-body SOIC (W8MS+7), 8mm creepage and clearance, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VDDA | Power supply input for Side A | Bypass with 0.1µF ceramic capacitor to GNDA; sets logic levels on input side |
| 2 - OUT1 | Logic output 1 on Side A | Drives downstream logic on Side A; push-pull output eliminates need for pull-up resistors |
| 3 - IN2 | Logic input 2 on Side A | Receives signal from Side B (reverse-direction channel); referenced to GNDA |
| 4 - GNDA | Ground reference for Side A | Isolated ground domain; must not be connected to GNDB or system ground |
| 5 - GNDB | Ground reference for Side B | Isolated ground domain; separates high-noise power stage from controller domain |
| 6 - OUT2 | Logic output 2 on Side B | Drives downstream logic on Side B; complements IN2 for full-duplex isolation |
| 7 - IN1 | Logic input 1 on Side B | Receives signal from Side A (forward-direction channel); referenced to GNDB |
| 8 - VDDB | Power supply input for Side B | Bypass with 0.1µF ceramic capacitor to GNDB; sets logic levels on output side |
Key Features
| Feature | Design Value |
|---|---|
| Opposite-direction channel architecture | Enables native full-duplex isolation of transceiver Tx/Rx lines without external direction control logic |
| Reinforced galvanic isolation | 5kVRMS withstand and 848VRMS working voltage meet IEC 60747-5-5 and DIN VDE V 0884-11 (pending) |
| Low-power operation | 0.78mW/channel at 1Mbps/1.8V - reduces thermal load in compact automotive modules |
| High CMTI immunity | 50kV/µs minimum - maintains signal integrity during fast switching in SiC/GaN inverter gate drivers |
| Independent dual-supply operation | VDDA and VDDB each support 1.71–5.5V - enables seamless level translation between mixed-voltage subsystems |
Applications
| Automotive Battery Management System (BMS) | Industrial Isolated RS-485 Transceiver |
|---|---|
Use Scenario: Isolating cell monitor IC communication from MCU across high-voltage battery stack (up to 1000V). IC Role / Device Role / Timing Role: Bidirectional isolator for daisy-chained UART links between BMS controller and analog front-end ICs. Use Value: Reinforced 5kVRMS isolation prevents fault propagation; 200Mbps supports fast calibration data transfer; AEC-Q100 Grade 0 ensures reliability over vehicle lifetime. | Use Scenario: Galvanically isolating RS-485 transceiver (e.g., MAX1487) from host MCU in factory automation PLCs. IC Role / Device Role / Timing Role: Full-duplex signal isolator handling simultaneous Tx and Rx differential bus signals. Use Value: Opposite-direction channels eliminate external direction-control logic; 50kV/µs CMTI suppresses noise from adjacent motor drives. |
| Hybrid Electric Vehicle Inverter Control | Isolated SPI Interface for ADCs |
Use Scenario: Isolating gate driver control signals and feedback from current/voltage sensors in high-power traction inverters. IC Role / Device Role / Timing Role: Dual-channel isolator separating PWM command path (IN1→OUT1) and sensor readback path (IN2←OUT2). Use Value: 7ns propagation delay minimizes control loop latency; −40°C to +125°C operation survives under-hood thermal cycling. | Use Scenario: Isolating high-resolution SAR ADC (e.g., AD7689) SPI interface from noisy digital controller in precision power monitoring. IC Role / Device Role / Timing Role: Clock and data line isolator for SCLK/MOSI/MISO with precise timing alignment. Use Value: Low pulse-width distortion (<2ns) preserves SPI timing margins; independent supplies match ADC (2.5V) and MCU (3.3V) domains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital isolator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SI8621ED-B-IS | 2-channel, opposite-direction, 150Mbps max, 3.75kVRMS isolation, 25kV/µs CMTI | Lacks AEC-Q100 qualification; lower isolation and CMTI ratings limit use in automotive BMS | Preferred for cost-sensitive industrial RS-485 where AEC-Q100 and 5kVRMS are not required |
| ISO6721FDWR | 2-channel, opposite-direction, 50Mbps max, 5kVRMS, 25kV/µs CMTI, 16-pin SOIC | Lower data rate and larger package; no AEC-Q100 qualification | Suitable for legacy industrial designs requiring proven TI qualification but not high-speed operation |
Compared with SI8621ED-B-IS and ISO6721FDWR, the MAX22246CAWA/V+T delivers higher speed (200Mbps vs ≤150Mbps), superior noise immunity (50kV/µs vs ≤25kV/µs), and automotive-grade qualification - making it the only option meeting full AEC-Q100 Grade 0 and reinforced 5kVRMS requirements for next-gen EV power electronics.
Availability
MAX22246CAWA/V+T is available at Aetrix Electronics and suitable for automotive battery management systems, industrial motor drives, and isolated communication interfaces requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for MAX22246CAWA/V+T 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The MAX22246CAWA/V+T belongs to Analog Devices' reinforced digital isolator product line, engineered specifically for functional safety-critical isolation in electric vehicle powertrain, renewable energy inverters, and industrial automation systems.
FAQ
What is the isolation voltage rating of the MAX22246CAWA/V+T?
The MAX22246CAWA/V+T has a reinforced isolation rating of 5kVRMS for 60 seconds (VISO), a maximum working voltage of 848VRMS (VIOWM), and a surge withstand capability of ±12.8kV between GNDA and GNDB. These values are verified per IEC 60747-5-5 and support safety-critical applications in automotive and industrial systems. The MAX22246CAWA/V+T also meets UL1577 and CSA Bulletin 5A standards.
Does the MAX22246CAWA/V+T support level translation between different logic voltages?
Yes, the MAX22246CAWA/V+T supports true bidirectional level translation: VDDA (Side A) and VDDB (Side B) operate independently across 1.71V to 5.5V, allowing direct interfacing between 1.8V microcontrollers and 3.3V or 5V peripherals. This eliminates external level shifters in isolated SPI, UART, or GPIO applications. The MAX22246CAWA/V+T maintains signal integrity across all supported voltage combinations without timing penalty.
How does the MAX22246CAWA/V+T differ from the MAX22245 in pinout and function?
The MAX22246CAWA/V+T uses opposite-direction channel routing (IN1→OUT1 and IN2←OUT2), while the MAX22245 uses same-direction routing (IN1→OUT1 and IN2→OUT2). Pin 2 is OUT1 on MAX22246CAWA/V+T but IN1 on MAX22245; pin 7 is IN1 on MAX22246CAWA/V+T but OUT1 on MAX22245. This makes the MAX22246CAWA/V+T ideal for transceiver isolation, whereas MAX22245 suits isolated digital I/O expansion.
Is the MAX22246CAWA/V+T qualified for automotive applications?
Yes, the /V suffix in MAX22246CAWA/V+T indicates full AEC-Q100 Grade 0 qualification (−40°C to +125°C), including stress testing for temperature cycling, humidity, and mechanical shock. It is approved for use in automotive battery management systems, on-board chargers, and traction inverter control units where reinforced isolation and long-term reliability are mandatory.
What is the power consumption of the MAX22246CAWA/V+T at 100Mbps?
At 100Mbps with 1.8V supplies, the MAX22246CAWA/V+T consumes 3.28mW per channel (6.56mW total), as specified in the datasheet. At 3.3V and 100Mbps, typical supply current is ~2.18mA per side, resulting in ~7.2mW total. Power scales linearly with data rate and quadratically with supply voltage, and includes both quiescent and dynamic load components.
MAX22246CAWA/V+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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+T FAQ
1.How can I place an order for MAX22246CAWA/V+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22246CAWA/V+T 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+T reliable?
The price and inventory of MAX22246CAWA/V+T 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+T is usually 5 days.
3.What payment methods are accepted for MAX22246CAWA/V+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22246CAWA/V+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22246CAWA/V+T?
MAX22246CAWA/V+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22246CAWA/V+T 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+T?
For technical support, including MAX22246CAWA/V+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22246CAWA/V+T requirements.
6.How does Aetrix verify that MAX22246CAWA/V+T is sourced from the original manufacturer or authorized distributors?
All MAX22246CAWA/V+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX22246CAWA/V+T?
All MAX22246CAWA/V+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22246CAWA/V+T, 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+T part is unused and in its original packaging.
Return procedure for MAX22246CAWA/V+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX22246CAWA/V+T 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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ISO6741FQDWRQ1
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ISO7741FDWR
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