MAX14821 IO-Link Device Transceiver
The MAX14821 is an IO‑Link device transceiver designed for use with 24 V binary sensors and actuators. It provides a physical‑layer interface to a microcontroller and includes configurable push‑pull, high‑side (PNP) or low‑side (NPN) drivers, reverse‑polarity protection, and extensive fault monitoring.
Key specifications include dual linear regulators (5 V and 3.3 V), selectable 100 mA output drive, operation over –40 °C to +85 °C, and SPI‑compatible configuration. The device is offered in two compact packages: a 2.5 mm × 2.5 mm WLP and a 4 mm × 4 mm TQFN.
| Operating Temperature Range | -40 °C to +85 °C |
|---|---|
| Output Drive Current | Up to 100 mA source/sink |
| Package Types | 2.5 mm × 2.5 mm WLP, 4 mm × 4 mm TQFN |
| Maximum SPI Clock Rate | 12 MHz |
The device supports an SPI clock rate up to 12 MHz.
It is offered in a 2.5 mm × 2.5 mm 25‑pin WLP and a 4 mm × 4 mm 24‑pin TQFN package.
The transceiver operates from –40 °C to +85 °C.