567LH-DP24  驱动器模块

【产品详情】

DI 隔离技术采用磁隔离方式，具有较强的电气隔离特性和驱动能力，符合工业自动化的安全性和鲁棒性要求。ADI 磁隔离 IGBT 驱动器可发挥光耦或脉冲变压器的性能和可靠性优势，具有以下特性：

50ns 最大传播延迟

小于5ns 通道间匹配

400Vrms 工作电压下的 50 年工作寿命

单封装电流隔离

ADI ADuM4224 的特性

以 ADI 的 ADuM4224 为例，它正是采用了 iCoupler® 技术的 4A 隔离式半桥栅极驱动器，提供独立且隔离的高端和低端输出，其特性如下：

5000Vrms 隔离

两个独立的隔离通道

采用3.0V – 5.5V 电源电压工作

与低压系统兼容

与采用高压电平转换方法的栅极驱动器相比， ADuM4224 的输入与各输出之间具有真电流隔离优势。相对于输入，各路输出的持续工作电压最高可达 560 VPEAK，因而 ADuM4224 支持低端切换至负电压。高端与低端之间的差分电压最高可达 800 VPEAK。ADuM4224 驱动电路如下图 

567LH-DP24  驱动器模块

【英文介绍】

DI isolation technology adopts magnetic isolation mode, has strong electrical isolation characteristics and driving capability, and meets the safety and robustness requirements of industrial automation. ADI Magnetically isolated IGBT drivers deliver the performance and reliability benefits of an optocoupler or pulse transformer with the following features:

50ns maximum propagation delay

Matching between channels less than 5ns

50 years working life at 400Vrms operating voltage

Single package current isolation

Features of the ADI ADuM4224

ADI's ADuM4224, for example, is a 4A isolated half-bridge gate driver using iCoupler® technology that provides independent and isolated high and low end outputs with the following characteristics:

5000Vrms isolated

Two separate isolated channels

Work with 3.0V-5.5V power supply voltage

Compatible with low voltage systems

The ADuM4224 has the advantage of true current isolation between inputs and outputs compared to gate drivers using the high voltage level conversion method. The continuous operating voltage of each output relative to the input is up to 560 VPEAK, so the ADuM4224 supports low end switching to negative voltage. Differential voltage between high and low end up to 800 VPEAK. ADuM4224 drive circuit is shown below

567LH-DP24  驱动器模块

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