【选型】Nisshinbo看门狗+电压监测集成芯片用于车载APA应用,可兼容TPS3813-Q1
车载APA自动汽车是目前高端车型必备的功能之一,自动泊车已逐渐发展,目前包含停车位检测,辅助停车等多种功能,由于涉及到半自动驾驶技术,对于产品的功能安全也是需要相当重视的。因此通常会在主控芯片上增加一颗看门狗+电压集成的芯片。
本文介绍NISSHINBO(前Ricoh)车规系列产品的看门狗+电压监测集成芯片R5106N291A-TR-AE,可以与TI的TPS3813-Q1相互兼容,符合AEC-Q100认证,十分适用于车载APA相关应用方案。
Nisshinbo车规系列产品的看门狗+电压监测集成芯片R5106N291A-TR-AE与TI的TPS3813-Q1两个器件部分参数对比罗列如下,供大家参考:
图1 R5106N291A-TR-AE与TI的TPS3813-Q1参数对比
如上图所示R5106N291A-TR-AE相比TI的TPS3813-Q1来说,工作电压范围更广,可用于电池小电流供电的应用中。工作电流相对TPS3813-Q1大一些,看门狗喂狗时间较短,对于安全性更有保障。此外R5106N系列可支持0.1V step的电压监测,而TPS3813只能检测3.3V,5V等固定电压,可选范围值较少。
关于两者的封装pin脚如下图所示:
图2 R5106N291A-TR-AE与TI的TPS3813-Q1封装引脚图
如下图2所示,R5106N291A-TR-AE与TI的TPS3813-Q1同为SOT-23-6封装,两者的封装完全一致,可pin to pin替代。
综上所述,Nisshinbo车规系列产品R5106N291A-TR-AE芯片,集成看门狗+电压监测功能,在产品性能上可以与TI的TPS3813-Q1相媲美,同时性价比更高,备货更优,符合AEC-Q100认证,可以适用于车载APA项目的车载电压监测与看门狗保护方案上。
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可定制单位/双位/三位/四位LED数码管的尺寸/位数/发光颜色等性能参数,每段亮度0.8~30mcd,主波长470~640nm,电压2~10.2V。
最小起订量: 1000 提交需求>
可定制工业高柔电线工作电压:300-600V,工作温度:80-105℃,芯对数和截面积/尺寸长度,适用于小空间布线,可用作用作动力线、刹车线、编码器线、传感器线、信号线。
最小起订量: 1000m 提交需求>
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