[原创] SilabsSi827x系列抗高瞬变(dV/dt) 4A驱动器解决方案

Silabs公司的Si827x系列是抗高瞬变(dV/dt) 4AISOdriver驱动器,采用公司有专属权的硅隔离技术,支持UL1577和VDE0884的高达2.5kVRMS耐受电压,单路,双路或高边/低边驱动器,单PWM或双数字输入,输入电源2.5V-5.5V,驱动电源4.2V-30V,抖动200ps,传输时延60ns,主要用在开关电源,太阳能逆变器,马达控制和驱动,不间断电源(UPS),大功率D类放大器.本文介绍了Si827x系列主要特性,框图,应用电路和评估板Si827x-EVB主要案特性,电路途遥远,材料清单和PCB设计图.

The Si827x isolators are ideal for driving power switches used in a wide variety of power supply, inverter, and motor control applications. The Si827x isolated gate drivers utilize Silicon Laboratories’proprietary silicon isolation technology, supporting up to 2.5 kVRMS withstand voltage per UL1577 and VDE0884. This technology enables industry leading common-mode transient immunity (CMTI), tight timing specifications,reduced variation with temperature and age, better part-to-part matching, and extremely high reliability.

It also offers unique features such as separate pull-up/down outputs, driver shutdown on UVLO fault, and precise dead time programmability. The Si827x series offers longer service life and dramatically higher reliability compared to opto-coupled gate drivers.
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