原标题：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.

　　The ISL72813SEH operates across the military temperaturerange from -55°C to +125°C and is available in a 44 Ldhermetically sealed Ceramic Lead-Less Chip Carrier (CLCC)package.

　　ISL72813SEH主要特性:

　　• Electrically screened to SMD 5962-17208

　　• Acceptance tested to 100krad(Si) (HDR) and to 50krad(Si)(LDR) wafer-by-wafer

　　• Integrated 5-bit to 32-channel decoder

　　• Integrated level shifting circuit

　　• High collector current outputs

　　• High voltage outputs

　　• Grounded metal lid

　　• Full military temperature range operation

　　- TA = -55°C to +125°C

　　- TJ = -55°C to +150°C

　　• Radiation tolerance

　　- HDR (50rad(Si)/s to 300rad(Si)/s) . . . . . . . . . 100krad(Si)

　　- LDR (0.01rad(Si)/s) . . . . . . . . . . . . . . . . . . . . . . . 50krad(Si)

　　• SEE hardness

　　- No SEB/SEL LETTH, VCE = 33V . . . . . . . 86.4MeV•cm2/mg

　　ISL72813SEH应用:

　　• Waveguide switches and coaxial switches

　　• Relays

　　• Line drivers

　　• Logic buffers

　　• Lamp drivers

　　图1.ISL72813SEH功能框图

　　图2.ISL72813SEH典型应用电路

　　评估板ISL72813SEHEV1Z

　　The ISL72813SEHEV1Z evaluation board was designed toprovide a quick and easy method for evaluating theISL72813SEH, 32-channel driver circuit IC. This device is aunique IC. To use this evaluation board properly requires athorough knowledge of the operation of the IC. Refer to theISL72813SEH datasheet for an understanding of the functionsand features of the device.

　　The Intersil ISL72813SEH device is a radiation hardened,high-voltage, high-current 32-channel driver circuit with anintegrated decoder for driving and selecting between a bank ofrelays in space applications. It is fabricated using Intersil’sproprietary PR40 silicon-on-insulator process technology tomitigate single-event effects. This device integrates 32 currentdrivers that feature high-voltage, common-emitter andopen-collector outputs with a 42V breakdown voltage andpeak current rating of 600mA.

　　The evaluation board has been configured and optimized forthe following conditions:

　　• VCC = 5V

　　• VEE = -34V

　　• Collector output (Cx) load to GND of ≥58Ω (≤600mA)

　　• Board temperature: +25°C

　　评估板ISL72813SEHEV1Z主要特性:

　　• Toggle switches for easy control of logic pins

　　• LED circuitry for quick functional testing

　　• Convenient test points and connections for test equipment

　　• MCU interface connector for control of logic

　　• Banana jacks for power and ground connections

　　图3.评估板ISL72813SEHEV1Z框图

　　图4.评估板ISL72813SEHEV1Z外形图(顶视图)

　　图5.评估板ISL72813SEHEV1Z外形图(底视图)

　　详情请见:

isl72813seh.pdf

isl72813sehev1z-user-guide.pdf

isl72813sehev1zbom_design.zip