[原创] Maxim MAX14915带诊断功能八路高边开关解决方案

Maxim公司的MAX14915是带诊断功能的八路高边开关,能提供高达700mA连续电流,125℃环境温度时开态电阻最大为250mΩ,集成了±1kV/42Ω IEC61000-4-5浪涌保护,工作环境温度-40℃ 到+125℃,SPI接口可提供全部和单路配置和诊断,包括过压和欠压检测,开-线检测,过载和限流报告,热条件报告等.主要用在工业数字输出和PLC系统.本文介绍了MAX14915主要优势和特性,简化框图和应用电路,以及评估板MAX14915 EVK主要特性,电路图,材料清单和PCB设计图.

The MAX14915 has eight high-side switches specified to deliver up to 700mA continuous current. The high-side switches have on-resistance of 250mΩ (max) at 125℃ ambient temperature.

The SPI interface has a built-in chip addressing decoder, allowing communication with multiple MAX14915s utilizing a common SPI chip select (CS).

The SPI interface provides flexibility for global and per-channel configuration and diagnostic, including over and undervoltage detection, open wire/load detection, overload and current limiting reporting, thermal conditions reporting, and more.
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