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Analog Devices Inc./Maxim Integrated MAX22516ATL+
- Part No.:
- MAX22516ATL+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized
- Package:
- 40-WFQFN Exposed Pad
- Datasheet:
-
MAX22516ATL+.pdf
- Description:
- IC INTFACE SPECIALIZED 40TQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,185
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Product details
Overview
MAX22516ATL+ from Analog Devices is an IO-Link data link controller IC integrating a 24V C/Q transceiver, auxiliary digital I/O (DI/DO), integrated 200mA DC-DC buck regulator, 5V and 3.3V linear regulators, and full ISO/IEC 61131-9-compliant data link layer. It autonomously handles master communication requests with deterministic answer delay and supports COM1/COM2/COM3 (400µs min cycle time). It targets compact industrial sensors requiring robust 24V interface and self-contained power.
For engineers reviewing the MAX22516ATL+ datasheet, MAX22516ATL+ pinout, MAX22516ATL+ application, or MAX22516ATL+ equivalent, this page delivers verified technical context, real-world timing behavior, integrated protection specs, package-specific layout guidance, and validated alternative options for IO-Link sensor node design.
Technical Context
The MAX22516ATL+ implements a complete IO-Link data link layer with dedicated handlers for process data, ISDU, event, page, mode, and startup sequences - eliminating microcontroller intervention during normal operation. Its autonomous message handling includes receive/transmit buffers sized for maximum process data (32B), ISDU (240B), event (8B), and page (256B) payloads.
It features dual control paths: fully autonomous operation post-configuration, or direct UART (TXEN/TX/RX) or SPI (15MHz with burst mode) control of the C/Q transceiver. The integrated DC-DC operates at 1.229MHz (typ) with spread-spectrum option, ±1kV/500Ω surge protection on all 24V pins (V24, C/Q, DO, DI, GNDCQ), and thermal shutdown at +175°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V24 Input Range | 7V to 36V - supports standard IO-Link L+ supply with reverse voltage and short-circuit protection. |
| C/Q Driver Current Limit | 289mA (typ) - enables robust push-pull operation per IO-Link Class A/B requirements. |
| DC-DC Output Current | 200mA - powers downstream circuitry (e.g., MCU, sensors) without external DC-DC stage. |
| COM3 Cycle Time | 400µs (min) - meets high-speed IO-Link sensor timing for real-time closed-loop control. |
| Operating Temp Range | −40°C to +125°C - qualified for harsh industrial environments including motor enclosures and factory floors. |
| Surge Protection | ±1kV/500Ω on V24, C/Q, DO, DI - exceeds IEC 61000-4-5 Level 3 for field-deployed devices. |
| SPI Speed | 15MHz - enables fast configuration and diagnostics without bottlenecking host MCU bandwidth. |
Pinout & Package
MAX22516ATL+ is packaged in a 40-pin TQFN-EP (5mm × 5mm, wettable flank), RoHS-compliant, with exposed thermal pad (EP) connected to GND. Pin mapping is identical to MAX22516 T4055+1C package variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| V24 (Pins 25,26) | 24V Supply Input | Connects to IO-Link L+; powers C/Q/DO drivers and internal regulators; bypassed with 10nF capacitor. |
| C/Q (Pin 24) | IO-Link Transceiver I/O | Full-duplex C/Q line driver/receiver; logic-inverted relative to TX/RX; supports COM1–COM3 modes. |
| DO (Pin 27) | Auxiliary Digital Output | Configurable push-pull output; logic-inverted copy of LO input; supports up to 289mA sink/source. |
| DI (Pin 22) | Auxiliary Digital Input | Always-enabled receiver; accepts −36V to +36V input; requires 1kΩ series resistor for ESD robustness. |
| LX (Pin 13) | DC-DC Switch Node | Connects to external inductor; switching at 1.229MHz (typ); supports adjustable output via FB resistor divider. |
| FB (Pin 11) | DC-DC Feedback Input | Regulates output voltage to 0.9V reference; connect to resistor divider tap; tie to VCCB to disable DC-DC. |
| V5 (Pin 10) | 5V Linear Regulator Output | Supplies 5V @ 50mA (typ); required for internal logic; bypassed with 1µF capacitor; disable by connecting LIN to V5. |
| V33 (Pin 9) | 3.3V Linear Regulator Output | Supplies 3.3V @ 100mA (typ); precision ±1.5% output; bypassed with 1µF capacitor; used for MCU/sensor core logic. |
| CS/SCLK/SDI/SDO (Pins 40,38,39,37) | SPI Interface | Full-duplex 15MHz SPI; SDO high-impedance when CS high; supports burst-mode register access. |
| IRQ (Pin 17) | Interrupt Request Output | Open-drain active-low signal indicating event (e.g., wake-up, error, buffer ready); pulled up externally. |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous Data Link Layer | Handles all master message requests (process data, ISDU, events, pages) without MCU involvement after boot. |
| Integrated Power System | Combines 200mA DC-DC buck (adjustable), 5V/3.3V LDOs, and VCCB 5V regulator - eliminates 3 external power ICs. |
| Deterministic Timing | Guaranteed answer delay ≤ 400µs for COM3; eliminates jitter-sensitive firmware polling loops. |
| Industrial-Grade Protection | ±1kV/500Ω surge on all 24V pins, reverse-voltage and short-circuit protection, and thermal shutdown at +175°C. |
| Flexible I/O Control | Supports transparent UART mode (TX/TXEN/RX) or SPI mode; configurable slew rate (4 settings) for EMI optimization. |
| Small Footprint | 40-pin TQFN-EP (5mm × 5mm) matches space-constrained sensor housings; WLP variant also available. |
Applications
| IO-Link Proximity Sensor | IO-Link Photoelectric Sensor |
|---|---|
|
Use Scenario: Compact M12 housing proximity sensor with digital switching output and diagnostic telemetry. IC Role / Device Role / Timing Role: MAX22516ATL+ serves as the full IO-Link physical + data link layer, managing C/Q communication, powering internal MCU via V33/V5, and conditioning DI/DO signals. Use Value: Enables sub-400µs cycle time for real-time position feedback while reducing BOM count by integrating transceiver, DC-DC, and dual LDOs. |
Use Scenario: Through-beam photoelectric sensor with bidirectional parameterization and event reporting over IO-Link. IC Role / Device Role / Timing Role: MAX22516ATL+ acts as the IO-Link interface controller, buffering ISDU commands for gain calibration and transmitting light-intensity events via interrupt-driven IRQ. Use Value: Eliminates need for external surge protection components and provides deterministic response for safety-critical light barrier status updates. |
| IO-Link Flow Sensor | IO-Link Pressure Transmitter |
|
Use Scenario: Smart flow meter with analog front-end, temperature compensation, and real-time volumetric output. IC Role / Device Role / Timing Role: MAX22516ATL+ interfaces the sensor's MCU via SPI, drives C/Q line, supplies 3.3V to ADC/MCU, and monitors DI for pulse-counting inputs. Use Value: Reduces PCB area by 35% vs discrete transceiver + regulator solution; integrated thermal warning prevents overheating in sealed enclosures. |
Use Scenario: Industrial pressure transmitter with HART-compatible diagnostics and IO-Link parameter read/write capability. IC Role / Device Role / Timing Role: MAX22516ATL+ manages IO-Link page access for calibration coefficients, handles wake-up detection on C/Q, and powers analog signal chain via V5. Use Value: Achieves ±1kV surge immunity without external TVS arrays; programmable thermal warning (−15°C to +174°C) enables predictive maintenance alerts. |
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 |
|---|---|---|---|
| MAX22515ATL+ | Omits integrated DC-DC and V33 regulator; retains C/Q transceiver, SPI/UART, and 5V LDO. | Suitable where external 3.3V supply exists and board space allows separate DC-DC. | Select MAX22515ATL+ when system already provides clean 3.3V and cost reduction outweighs integration benefit. |
| TI DP83822IRGZT | PHY-only Ethernet PHY (10/100BASE-T1); no IO-Link stack, no DC-DC, no LDOs, no data link layer. | Designed for TSN-based industrial Ethernet nodes, not IO-Link sensor endpoints. | Not functionally equivalent; only consider if migrating from IO-Link to single-pair Ethernet architecture. |
Compared with MAX22516ATL+, MAX22515ATL+ reduces integration but maintains pin compatibility and identical IO-Link protocol handling, whereas DP83822IRGZT serves a fundamentally different physical layer and network stack - making it unsuitable as a drop-in or functional substitute.
Availability
MAX22516ATL+ is available at Aetrix Electronics and suitable for IO-Link sensor design, industrial automation retrofitting, and smart actuator development requiring stable component supply across extended product lifecycles.
Supply support for MAX22516ATL+ 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 since 1965.
The MAX22516ATL+ belongs to Analog Devices' IO-Link portfolio, engineered specifically to simplify sensor node design by merging physical layer, data link layer, and power management into a single IC for compact, rugged industrial endpoints.
FAQ
What is the primary function of the MAX22516ATL+ in an IO-Link system?
The MAX22516ATL+ serves as a complete IO-Link data link controller with integrated 24V transceiver, eliminating the need for external protocol handling. It autonomously processes master requests (process data, ISDU, events) and manages C/Q communication timing, allowing the host MCU to focus solely on application-layer tasks. Its integrated DC-DC and LDOs further reduce system-level component count.
Does the MAX22516ATL+ support all IO-Link communication speeds (COM1, COM2, COM3)?
Yes, the MAX22516ATL+ supports COM1 (4.8kbps), COM2 (38.4kbps), and COM3 (230.4kbps) modes with guaranteed ≤400µs minimum cycle time for COM3. This is achieved through hardware-accelerated data link layer handling and dedicated receive/transmit buffers sized for full 32-byte process data and 240-byte ISDU payloads.
How does the integrated DC-DC regulator in the MAX22516ATL+ operate, and what output voltage does it generate?
The MAX22516ATL+ integrates a 200mA buck DC-DC regulator with adjustable output. It uses the LX switch node and FB feedback pin to regulate an external resistor divider; typical output is 6V (set by 100kΩ/100kΩ divider), but can be configured from ~3V to ~12V. The regulator operates at 1.229MHz (typ), includes spread-spectrum mode, and features ±1.5% output accuracy.
What protection features does the MAX22516ATL+ provide on its 24V interface pins?
The MAX22516ATL+ provides reverse-voltage protection, short-circuit protection, and integrated ±1kV/500Ω surge protection on all 24V interface pins: V24, C/Q, DO, DI, and GNDCQ. These protections meet IEC 61000-4-5 Level 3 requirements and eliminate the need for external TVS diodes or current-limiting resistors in most industrial deployments.
Can the MAX22516ATL+ operate without an external microcontroller after initial configuration?
Yes - once configured via SPI or UART, the MAX22516ATL+ operates autonomously: it answers all master requests, manages C/Q timing, handles buffer transfers, and executes event/page handling without MCU intervention. The host MCU only needs to service IRQ interrupts or poll status registers, significantly reducing firmware overhead and improving real-time determinism.
MAX22516ATL+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 40-WFQFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Applications:
- Controller
- Interface:
- SPI, UART
- Voltage - Supply:
- 4.85V ~ 5.5V, 8V ~ 36V
- Supplier Device Package:
- 40-TQFN (5x5)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
MAX22516ATL+ FAQ
1.How can I place an order for MAX22516ATL+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX22516ATL+ 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 MAX22516ATL+ reliable?
The price and inventory of MAX22516ATL+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX22516ATL+ is usually 5 days.
3.What payment methods are accepted for MAX22516ATL+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX22516ATL+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX22516ATL+?
MAX22516ATL+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX22516ATL+ 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 MAX22516ATL+?
For technical support, including MAX22516ATL+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX22516ATL+ requirements.
6.How does Aetrix verify that MAX22516ATL+ is sourced from the original manufacturer or authorized distributors?
All MAX22516ATL+ 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 MAX22516ATL+ meets industry standards.
7.What is the process for return or replacement of MAX22516ATL+?
All MAX22516ATL+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX22516ATL+, 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 MAX22516ATL+ part is unused and in its original packaging.
Return procedure for MAX22516ATL+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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