LTC2874IUHF#PBF

LTC2874IUHF#PBF is a quad IO-link hot swap controller and PHY. It provides a rugged, 4-portIO-Linkpower and communications interface to remote devices connected by cables up to 20m in length. Output supply voltage and inrush current are ramped up in a controlled manner using external N-channel MOSFETs, providing improved robustness compared to fully integrated solutions. Wake-up pulse generation, line noise suppression, connection sensing and automatic restart after fault conditions are supported, along with signalling at 4.8kb/s, 38.4kb/s, and 230.4kb/s. Configuration and fault reporting are exchanged using a SPI-compatible 4-wire interface that operates at clock rates up to 20MHz. Applications include IO-link, intelligent sensors and actuators, factory automation networks.

• IO-Link® compatible (COM1/COM2/COM3), 8V to 34V operation
• Hot Swap™ controller protected supply outputs, automatic wake-up pulse generation
• Discrete power MOSFETs for ruggedness and flexibility, automatic cable sensing
• CQ pins protected to ±50V, configurable L+ current limit with foldback
• Short circuit, input UV/OV and thermal protection, no damage or latch up to ±8kV HBM ESD
• 2.9V to 5.5V logic supply for flexible digital interface
• VDD input supply current, all ports enabled is 5mA typ at (DRVEN = 0xF, ENL+ = 0xF, ILLM = 0x0)
• UV lockout hysteresis is 0.13V typ at (TA = 25°C)
• Receiver propagation delay is 200ns typ at (NSF = 0x0, CL = 100pF)
• Operating temperature range from -40°C to 85°C, 38-lead plastic QFN package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party