ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The MAX14937 is a two-channel, 5kVRMS I2C digital isolator utilizing Maxim’s proprietary process technology. The device transfers digital signals between circuits with different power domains at ambient temperatures up to +125°C. The device offers two bidirectional, open-drain channels for applications, such as |2ς, that require data to be transmitted in both directions on the same line. To prevent latchup action, the A-side outputs comprise special buffers that regulate the logic-low voltage at 0.9V (max), and the input logic-low threshold is at least 50mV lower than the output logic-low voltage. The B side features conventional buffers that do not regulate logic-low output voltage. The device features independent 2.25V to 5.5V supplies on each side of the isolator. The MAX14937 operates from DC to 1.7MHz and can be used in isolated |2C busses with clock stretching. The MAX14937 is available in a 16-pin, wide-body (10.3mm × 7.5mm) SOIC package, and is rated for operation at ambient temperatures of -40°C to +125°C.

Features

• Robust Galvanic Isolation of Digital Signals
• Withstands 5kVRMS for 60s (VISO)
• Continuously Withstands 848VRMS (VIOWM)
• 1200VPEAK Repetitive Peak Voltage (VIORM)
• Withstands ±10kV Surge per IEC 61000 - 4 - 5
• Interfaces Directly with Most Micros and FPGAs
• Accepts 2.25V to 5.5V Supplies
• Bidirectional Data Transfer from DC to 1.7MHz
• Low Power Consumption
• 5.3mA per Channel Typical at 1.7MHz

Applications

• |²C, SMBus, PMBus Interfaces
• Power Supplies
• Battery Management Instrumentation