ایزولاتور ایزولاتور دیجیتال

Product Attributes

Introduction

A family of single-channel, optocompatible isolated gate driver capable of sinking 6A and sourcing 5A currents. These devices operate with dual supplies or a single supply of 10V to 30V (8V UVLO version) or 14V to 30V (12V UVLO version) wide voltage range of VCC - VEE, making them ideal to drive power MOSFET, IGBT or silicon-carbide(SiC) transistors in various inverter, motor control or isolated power supply systems. The driver can be configured as low-side and high-side drivers. The CA-IS3211Vx offers single terminal gate drive output: VOUT and the CA-IS3211Sx offers dual separate output terminals: OUTH and OUTL. The driver output is pulled to low state to turn-off external power transistors when VCC supply input is either not powered, open-circuit or in UVLO.

All devices have integrated digital galvanic isolation using proprietary capacitive isolation technology and feature isolation with a withstand voltage rating of up to 5.7kVRMS for 60 seconds and minimum common-mode transient immunity (CMTI) of 150kV/μs. These devices can be used as drop-in replacement for the industry standard optocoupler-based gate drivers while providing high CMTI, low propagation delay, small pulse width distortion and small part-to-part skew. The input stage is an analog diode which means long term reliability and excellent aging characteristics.

The devices are available either in a 6-pin or 8-pin wide-body SOIC packages, and 8-pin DUB package. All devices are rated for operation at junction temperatures of -40°C to +150°C

Features

• 6A Peak Sink Current and 5A Peak Source Current
• Up to 30V Output Drive Supply Range with 8V and 12V UVLO options
• Support Rail to Rail Output
• Up to 7V Reverse Voltage on Input-stage, Interlock Matching Propagation Delay
• 70ns Propagation delay (typical)
• 25ns Part to part propagation delay matching (maximum)
• 35ns Pulse width distortion(maximum)
• -40°C to +150°C Operating Junction Temperature Range
• Robust Galvanic Isolation
• High lifetime: >40 years
• Up to 5.7kVRMS isolation rating for the wide-body packages and 3.75kVRMS isolation rating for DUB8 package
• Common-mode transient immunity (CMTI) >±150kV/μs
• 6-pin wide-body SOIC (J) Package
• 8-pin wide-body SOIC8 (G) Package
• 8-pin DUB8 (U) package
• Safety regulatory approvals
• VDE Reinforced isolation and Basic isolation per DIN EN IEC 60747-17 (VDE 0884-17): 2021-10
• UL certification per UL 1577 for 1 minute
• TUV certification per EN61010-1:2010+A1
• CQC certification per GB 4943.1-2022

Applications

• Isolated DC-DC and AC-DC Converters
• Motor Control
• Uninterruptible Power Supply (UPS)
• Isolated Gate Driver for Inverters