MAX14821
IO-Link Device Transceiver
Industry's Smallest Full-Featured IO-Link Device Transceiver in 2.5mm x 2.5mm, 25-Bump WLP
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Key Features
Applications/Uses
| Functions | IO-Link Device Transceiver |
| VCC (V) (min) | 9 |
| VCC (V) (max) | 36 |
| C/Q (mA) (typ) | 140 |
| DO (mA) (typ) | 135 |
| Selectable Slew Rate | Yes |
| Logic-Level Supply Voltage (V) | 2.3 to 5.5 |
| Integrated Power | 3.3V LDO 5V LDO |
| Protection Features | High Temp Warning and Shutdown Reverse Polarity Short Circuit UVLO |
| Package/Pins | TQFN/24 WLP/25 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 3.76 |
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Parameters
| Functions | IO-Link Device Transceiver |
| VCC (V) (min) | 9 |
| VCC (V) (max) | 36 |
| C/Q (mA) (typ) | 140 |
| DO (mA) (typ) | 135 |
| Selectable Slew Rate | Yes |
| Logic-Level Supply Voltage (V) | 2.3 to 5.5 |
| Integrated Power | 3.3V LDO 5V LDO |
| Protection Features | High Temp Warning and Shutdown Reverse Polarity Short Circuit UVLO |
| Package/Pins | TQFN/24 WLP/25 |
| Oper. Temp. (°C) | -40 to +85 |
| Budgetary Price (See Notes) | 3.76 |
Key Features
- Standards Compliance Ensures Future-Proof Solutions
- IO-Link Versions 1.0 and 1.1.2
- IEC IEC61131.9 SDCI
- High Configurability and Integration Reduces SKUs
- Push-Pull, PNP or NPN Driver Configuration
- Supports COM1, COM2, and COM3 Data Rates
- SPI Interface for Control and Monitoring
- 2.5V to 5V Logic Interface Levels
- Auxiliary 24V, 100mA Digital Output (DO)
- Auxiliary 24V Digital Input (DI)
- 100mA Specified C/Q output Drive
- Integrated 5V and 3.3V Regulators
- Integrated Protection Enables Robust Solutions
- Extensive Fault-Monitoring and Reporting
- Reverse-Polarity and Short-Circuit Protection on All 24V Outputs/Inputs
- Reverse-Polarity Protected 24V Supply Output
- -40°C to +105°C Operating Temperature Range
- Small Package Supports Sensor Miniaturization
- 2.5mm x 2.5mm WLP and 4mm x 4mm TQFN Package
Applications/Uses
- Industrial Sensors and Actuators
- IO-Link Actuators
- IO-Link Sensors
Description
The MAX14821 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital inputs and outputs are provided. Two internal linear regulators generate common sensor and actuator power requirements: 5V and 3.3V.
On-board C/Q and DO drivers are independently configurable for push-pull, high-side (PNP), or low-side (NPN) operation. The device detects the IO-Link C/Q wake-up condition and generates a wake-up signal on the active-low WU output. The C/Q and DI inputs have selectable current loads for use in actuators.
An SPI™ interface allows configuration and monitoring of the device. Extensive alarm conditions are detected and communicated through the active-low IRQ output and the SPI interface. The device features reverse-polarity, short-circuit, and thermal protection. All power lines are monitored for undervoltage conditions.
The C/Q and DO drivers are specified for sourcing/sinking up to 100mA.
The device is available in a 2.5mm x 2.5mm, 25-pin WLP and a 4mm x 4mm, 24-pin TQFN package. Both are specified over the extended -40°C to +85°C temperature range.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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