ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

The π220N31/π221N31 devices are low-power bidirectional isolators compatible with the I²C interface. These devices have logic input and output buffers that are separated by using a silicon dioxide (SiO₂) barrier. These devices block high voltages and prevent noise currents from entering the control side ground, avoiding circuit interference and damaging sensitive components.

The π220N31/π221N31 devices are based on iDivider technology with functional, performance, size, and power consumption advantages as compared to optocouplers.

The π220N31 provides two bidirectional channels, supporting a complete isolated I²C interface. The π221N31 provides one bidirectional channel and one unidirectional channel for applications where a bidirectional clock is not required. The π221N31 is used in applications that have a single master while the π220N31 is suitable for multi - master applications.

These devices feature independent 3.0V to 5.5V supplies on each side of the isolator. These devices operate from DC to 2MHz at ambient temperatures of -40°C to +125°C.

Features

• Bidirectional |2c communication
• Ultra-low power consumption
• Supports up to 2 MHz operation
• Open-drain interfaces Side 1 outputs with 3.5 mA sink current Side 2 outputs with 35 mA sink current
• 3.0V to 5.5V supply/logic levels
• High common-mode transient immunity: 75 kV/μs typical
• Safety and regulatory approvals(Pending): UL recognition: 3000Vrms for 1 minute per UL 1577; CSA Component Acceptance Notice 5A; VDE certificate of conformity: DIN V VDE V 0884 - 10 (VDE V 0884 - 10):2006 - 12 ∀₁₀RM = 707V peak; CQC certification per GB4943.1 - 2011
• AEC-Q100 (Pending)
• Wide temperature range: -40°C to 125°C
• 8-lead, RoHS-compliant, SOIC package

Applications

• Isolated |zc', SMBus, PMBus interfaces
• Multilevel I2C interfaces
• Electric and Hybrid-Electric Vehicles
• Open-Drain Networks
• |2c Level Shifting
• Power supplies