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Analog Devices Inc./Maxim Integrated MAX22516AWO+T
- Part No.:
- MAX22516AWO+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 42-WFBGA, WLBGA
- Datasheet:
-
MAX22516AWO+T.pdf
- Description:
- IC INTFACE SPECIALIZED 42WLP
- Quantity:
- Payment:
- Shipping:
Inventory:2,990
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Product details
Overview
MAX22516AWO+T from Analog Devices is an IO-Link data link controller with integrated 24V C/Q transceiver, auxiliary DI/DO, 200mA DC-DC buck regulator, and dual linear regulators (5V/3.3V). It autonomously handles IO-Link communication-including process data, ISDU, event, and page handling-without microcontroller intervention during normal operation. Designed for industrial sensor nodes, it supports COM3 (400µs min cycle time) and operates across –40°C to +125°C.
For engineers reviewing the MAX22516AWO+T datasheet, MAX22516AWO+T pinout, MAX22516AWO+T application, or MAX22516AWO+T equivalent, this page delivers verified technical context, deterministic timing behavior, surge-protected 24V I/O interface details, and real-world selection guidance for IO-Link device design.
Technical Context
The MAX22516AWO+T implements a full IO-Link data link layer with autonomous message handler, ISDU handler, page handler, event handler, mode handler, and startup handler. Its UART and SPI interfaces enable flexible host control, while burst-mode 15MHz SPI supports high-throughput configuration and diagnostics.
It integrates robust protection: ±1kV/500Ω surge on V24, C/Q, DO, DI, and GND pins; reverse-voltage and short-circuit protection on all 24V I/O lines; and programmable thermal warning/shutdown thresholds (135°C warning, 175°C shutdown). The DC-DC regulator features spread-spectrum switching (1.229 MHz nominal), adjustable output via FB pin, and 1.5% output voltage accuracy.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V24 Supply Range | 7V to 36V - powers 24V IO-Link physical layer and DC-DC input; supports standard industrial L+/L− supply rails. |
| C/Q Driver Current Limit | 250mA (max, config-dependent) - enables direct drive of IO-Link Class A/B sensors without external amplification. |
| DC-DC Output Capability | 200mA at adjustable voltage - eliminates need for external buck converter in space-constrained sensor designs. |
| IO-Link Cycle Time Support | COM3: 400µs minimum - meets high-speed IO-Link master requirements for real-time industrial feedback loops. |
| Surge Protection | ±1.2kV @ 500Ω 8/20µs on V24/C/Q/DO/DI - ensures reliable operation in electrically noisy factory environments. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood, motor-control, and harsh-industrial deployment. |
| SPI Speed | 15MHz max with burst mode - enables rapid register access and firmware updates without CPU bottlenecks. |
Pinout & Package
MAX22516AWO+T is packaged in a 40-pin TQFN-EP (5mm × 5mm, exposed pad), RoHS-compliant, with θJA = 28°C/W on 4-layer board. Pin mapping is identical to MAX22516 family; package code T4055+1C, outline 21-0140.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V24 (Pins 25,26) | 24V Supply Input | Connects to IO-Link L+ rail; powers transceiver, DC-DC, and internal logic; requires 10nF local bypass. |
| C/Q (Pin 24) | IO-Link Transceiver I/O | Bidirectional C/Q line; supports push-pull, PNP, NPN modes; includes RX filtering and wake-up detection. |
| DO (Pin 27) | Auxiliary Digital Output | Configurable open-drain/push-pull driver; complements C/Q for multi-function sensor actuation or status signaling. |
| DI (Pin 22) | Auxiliary Digital Input | High-impedance receiver with 1kΩ series resistor recommendation; always enabled; provides independent digital sensing path. |
| LX (Pin 13) | DC-DC Switch Node | Connects to external inductor; switching node for integrated 200mA buck regulator; requires low-ESR output capacitor. |
| FB (Pin 11) | DC-DC Feedback Input | Resistor-divider tap point; sets regulated output voltage; connect to VCCB to disable DC-DC and use internal 5V regulator only. |
| GNDCQ (Pins 23,28) | C/Q Ground Reference | Dedicated ground for 24V I/O domain; must be connected to IO-Link L− and system GND for noise isolation. |
| GND / GNDD (Pins 1,14,36) | Digital Ground | Logic ground plane connection; EP must be soldered to GND for thermal and EMI performance. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous Data Link Controller | Handles all IO-Link master requests (process data, ISDU, events, pages) without MCU involvement-reduces host firmware complexity and latency. |
| Deterministic Answer Delay | Guaranteed response timing per IO-Link specification-enables predictable real-time system scheduling and jitter-free communication. |
| Integrated ±1.2kV Surge Protection | Eliminates need for external TVS diodes on V24, C/Q, DO, and DI-reduces BOM count and PCB area in compact sensor modules. |
| Programmable Thermal Management | 6-bit thermal ADC with ±8°C accuracy at 25°C and user-configurable warning (135°C) and shutdown (175°C) thresholds-prevents field failures in sealed enclosures. |
| Flexible Power Architecture | Single 24V input powers entire device: DC-DC generates 6V for LIN, while internal 5V/3.3V LDOs supply logic-no external power sequencing required. |
| Transparent UART Mode | TX/RX/TXEN pins allow direct microcontroller control of C/Q without SPI overhead-ideal for legacy MCU integration or debug scenarios. |
Applications
| IO-Link Proximity Sensor | IO-Link Pressure Transmitter |
|---|---|
|
Use Scenario: Compact M12-form-factor proximity sensor with analog/digital outputs and diagnostics. IC Role / Device Role / Timing Role: MAX22516AWO+T serves as complete IO-Link PHY + data link layer, managing C/Q signaling, power delivery, and embedded diagnostics reporting. Use Value: Enables sub-20mm PCB height with integrated DC-DC and dual LDOs; deterministic 400µs COM3 cycle time supports high-speed production line monitoring. |
Use Scenario: Industrial pressure transmitter with temperature compensation and HART-compatible diagnostics over IO-Link. IC Role / Device Role / Timing Role: Acts as intelligent interface between MEMS pressure sensor and IO-Link master, handling ISDU-based calibration data exchange and event-triggered alerts. Use Value: Integrated surge protection (±1.2kV) ensures reliability near variable-frequency drives; autonomous data link reduces host MCU interrupt load by >70%. |
| IO-Link Flow Meter Node | IO-Link Valve Positioner |
|
Use Scenario: Electromagnetic flow meter with pulse output, totalizer, and bidirectional flow detection. IC Role / Device Role / Timing Role: MAX22516AWO+T manages high-accuracy timing-critical pulse counting via DI input and synchronizes process data transmission using deterministic answer delay. Use Value: DI receiver propagation delay <1.05µs (RXFilter=0) ensures precise edge capture; ±1kV surge rating protects against ground-loop transients in wet-location installations. |
Use Scenario: Smart pneumatic valve positioner with position feedback, coil current monitoring, and predictive maintenance alerts. IC Role / Device Role / Timing Role: Controls C/Q for command reception and DO for solenoid driver enable/disable; uses internal thermal sensor to monitor coil driver junction temperature. Use Value: Programmable thermal warning (135°C) triggers derating before coil overheating; C/Q driver current limit (289mA typ) matches typical 24V solenoid hold-current profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar IO-Link data link controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX22515AWO+T | Same pinout and core functionality, but lacks integrated DC-DC regulator and 3.3V LDO; requires external 5V supply for V5. | Suitable for designs where 5V is already available and board space allows discrete DC-DC solution. | Select MAX22515AWO+T when power architecture mandates external regulation or thermal budget excludes integrated switching. |
| TJA1145ATK/0Z | Automotive-qualified CAN FD transceiver with IO-Link support via external MCU; no integrated data link controller or DC-DC. | Targets automotive body electronics with CAN backbone; requires full software stack for IO-Link protocol handling. | Choose TJA1145ATK/0Z only in automotive contexts requiring AEC-Q100 Grade 1 and CAN coexistence-not a functional substitute for MAX22516AWO+T's autonomous operation. |
Compared with MAX22516AWO+T, MAX22515AWO+T reduces integration but increases external component count, while TJA1145ATK/0Z shifts protocol responsibility to the host MCU and lacks industrial-grade surge protection-making MAX22516AWO+T the sole choice for self-contained, space-constrained, high-reliability IO-Link sensor nodes.
Availability
MAX22516AWO+T is available at Aetrix Electronics and suitable for IO-Link sensor development, industrial automation subsystems, and smart factory edge-node deployments requiring stable component supply, long-term manufacturability, and guaranteed industrial temperature operation.
Supply support for MAX22516AWO+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 technologies, serving industrial, automotive, communications, and healthcare markets with precision components and system-level solutions.
The MAX22516AWO+T belongs to Analog Devices' IO-Link portfolio, engineered specifically to simplify industrial sensor design by integrating PHY, data link layer, power, and protection into a single IC-enabling faster time-to-market for smart IIoT endpoints.
FAQ
What is the primary function of the MAX22516AWO+T in an IO-Link system?
The MAX22516AWO+T serves as a complete IO-Link data link controller with integrated 24V transceiver, eliminating the need for separate PHY and link-layer ICs. It autonomously handles all master-initiated communication-including process data exchange, ISDU transfers, event reporting, and parameter page access-while providing integrated power (DC-DC + dual LDOs) and protection (±1.2kV surge, reverse-voltage, thermal shutdown). This makes MAX22516AWO+T ideal for self-contained sensor nodes.
Does the MAX22516AWO+T support COM3 cycle time, and what is its minimum value?
Yes, the MAX22516AWO+T fully supports IO-Link COM3 speed with a guaranteed minimum cycle time of 400µs. This is achieved through deterministic timing in its autonomous data link controller, which ensures consistent answer delays regardless of host MCU activity-critical for high-throughput industrial automation systems requiring tight synchronization.
Can the MAX22516AWO+T operate without an external microcontroller after initial configuration?
Yes. Once configured via SPI or UART, the MAX22516AWO+T operates autonomously: it independently answers all IO-Link master requests, manages receive/transmit buffers (for process data, ISDU, events, pages), and maintains link integrity without further microcontroller intervention. The host MCU can enter low-power states or focus exclusively on application-layer tasks-reducing firmware complexity and improving system responsiveness.
What protection features does the MAX22516AWO+T include on its 24V I/O pins?
The MAX22516AWO+T provides comprehensive protection on V24, C/Q, DO, DI, and GNDCQ pins: ±1kV/500Ω surge per IEC 61000-4-5, reverse-voltage tolerance down to –36V, short-circuit current limiting, and integrated ESD protection (±3kV contact per IEC 61000-4-2). These features ensure robust operation in electrically harsh industrial environments-eliminating the need for external protection components in most designs.
What are the key differences between the MAX22516AWO+T and MAX22515AWO+T?
The MAX22516AWO+T includes an integrated 200mA DC-DC buck regulator and 3.3V linear regulator, while the MAX22515AWO+T omits both-requiring external 5V supply for V5 and separate 3.3V generation. Both share identical pinout, C/Q/DO/DI functionality, and autonomous data link capability. Thus, MAX22516AWO+T is preferred for space-constrained, single-supply (24V-only) sensor designs, whereas MAX22515AWO+T suits systems with existing clean 5V rails.
MAX22516AWO+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 42-WFBGA, WLBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Controller
- Interface:
- SPI, UART
- Voltage - Supply:
- 4.85V ~ 5.5V, 8V ~ 36V
- Supplier Device Package:
- 42-WLP (3.15x3.52)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MAX22516AWO+T FAQ
1.How can I place an order for MAX22516AWO+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22516AWO+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 MAX22516AWO+T reliable?
The price and inventory of MAX22516AWO+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22516AWO+T is usually 5 days.
3.What payment methods are accepted for MAX22516AWO+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22516AWO+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22516AWO+T?
MAX22516AWO+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22516AWO+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 MAX22516AWO+T?
For technical support, including MAX22516AWO+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22516AWO+T requirements.
6.How does Aetrix verify that MAX22516AWO+T is sourced from the original manufacturer or authorized distributors?
All MAX22516AWO+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 MAX22516AWO+T meets industry standards.
7.What is the process for return or replacement of MAX22516AWO+T?
All MAX22516AWO+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX22516AWO+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 MAX22516AWO+T part is unused and in its original packaging.
Return procedure for MAX22516AWO+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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