[原创] Intersil ISL72813SEH单片耐辐射32路驱动方案

Intersil公司的ISL72813SEH是集成了卫星应用译码器的单片耐辐射32路高压大电流驱动器,采用PR40的绝缘体上硅工艺,击穿电压42V,峰值电流600A,满足100krad(Si) (HDR) 和50krad(Si)(LDR)测试,集成了5位32路译码器和电平转移电路,工作温度-55°C 到+125°C,主要用在波导开关和同轴开关,继电器,灯驱动器,逻辑缓冲器和线路驱动器.本文介绍了ISL72813SEH主要特性,功能框图,以及评估板ISL72813SEHEV1Z主要特性,电路图,材料清单和PCB设计图.

The ISL72813SEH is a radiation hardened, high-voltage,high-current, driver circuit fabricated using Intersil’sproprietary PR40 silicon-on-insulator process technology tomitigate single-event effects. This device integrates 32 drivercircuits that feature high-voltage, common emitter, andopen-collector outputs with a 42V breakdown voltage and apeak current rating of 600mA.

To further reduce solution size and increase system powerdensity, the ISL72813SEH integrates a 5-bit to 32-channeldecoder (plus enable pin) as well as level shifting circuitry toreference the output of the decoder to a negative voltage. Thisconveniently allows the user to select 1 of 32 available driverchannels. The inputs to the decoder are TTL/CMOS

compatible, allowing easy interface to CPUs, FPGAs, orμprocessors.

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