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TB9045FNG系列产品概述
低压操作（VB：2.7V～），适用于ASIL D系统的MCU内核安全机构的输出电压为1.1、1.2、1.25和1.5的3通道传感器电源
越来越多至关于汽车安全的关键系统，比如电动助力转向（EPS）和制动系统，要求符合ASIL D[注1]，这是ISO 26262功能安全标准中所规定的最高汽车安全完整性等级。
新IC集成了对于电源电路的高压、低压检测和过热检测等各种故障检测功能以监测和防止IC自身故障，还集成了一个看门狗定时器以监测外部微控制器故障。我们还结合了用于检测故障检测电路中潜在故障的初始诊断电路，以保证更高的功能安全性。
注1：ASIL：汽车安全完整性等级
- 降压型预稳压电路
（最低2.7V输入，6V输出，降压模式的集成驱动IC，
升压模式的外部驱动IC） - 升压型稳压器
集成的降压型驱动IC和相位补偿滤波器；0.8A电流能力，输出电压为1.1、1.2、1.25和1.5 - 5V线性稳压器
（400mA，集成驱动IC） - 5V跟踪稳压器
（100mA×3沟道，集成驱动IC） - 安全机构
- 低压检测、高压检测、过流检测、热关断
- 窗口看门狗定时器
- 用于初始诊断的BIST
- SPI I/F可读取安全机构的内部状况
- 最大绝对电压
40V（用于甩负荷） - 建议工作电压
2.7V至18V - 工作温度
Ta＝-40至125°C - 封装：48引脚HTSSOP
TB9045FNG系列概述
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