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公开(公告)号：US20160300653A1
公开(公告)日：2016-10-13
申请号：US15071034
申请日：2016-03-15
发明人： Satoshi KONDO , Kazuaki KUBO , Noriyuki ITANO
CPC分类号： H01F7/064 , H01F7/1844 , H01F2007/1866 , H01F2007/1888 , H03F3/45475 , H03F2203/45588 , H03F2203/45594 , H03F2203/45616
摘要： An output driving circuit outputs an output current to a solenoid incorporated in a vehicle through an output terminal. A detection resistor connected between the output terminal and the output driving circuit. An amplification unit configured to output an analog detection signal generated by amplifying a voltage between both ends of the detection resistor. A current generation circuit configured to output a reference current. A reference resistor connected between the current generation circuit and a ground and configured to output a reference voltage according to the reference current. An A/D converter configured to convert the analog detection signal into a digital detection signal using the reference voltage as a reference. A control circuit configured to control the output current output from the output driving circuit according to the digital detection signal.
摘要翻译： 输出驱动电路通过输出端子将输出电流输出到并入车辆的螺线管。 连接在输出端子和输出驱动电路之间的检测电阻。 放大单元，被配置为输出通过放大检测电阻器的两端之间的电压而产生的模拟检测信号。 配置为输出参考电流的电流产生电路。 连接在电流产生电路和地之间并被配置为根据参考电流输出参考电压的参考电阻。 A / D转换器，被配置为使用参考电压作为参考将模拟检测信号转换成数字检测信号。 一种控制电路，被配置为根据数字检测信号来控制从输出驱动电路输出的输出电流。
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公开(公告)号：US20180248365A1
公开(公告)日：2018-08-30
申请号：US15858089
申请日：2017-12-29
发明人： Kazuaki KUBO , Koichiro HASHIMOTO
CPC分类号： H02H9/041 , H02H1/04 , H03K17/0822 , H03K17/64
摘要： There is a need to provide a semiconductor device and an electronic control system including the same while the semiconductor device is capable of continuing normal operation even when a negative surge voltage is applied. According to an embodiment, a driver IC includes an output transistor, a driver control circuit, a negative potential clamp circuit, and an ESD protection circuit. The output transistor is provided between a battery voltage terminal and an output terminal coupled to a load. The driver control circuit switches on-off state of the output transistor by controlling a gate voltage of the output transistor with reference to a voltage of the output terminal. The negative potential clamp circuit turns on the output transistor regardless of control from the control circuit when a negative voltage lower than a predetermined voltage is applied to the output terminal. The ESD protection circuit is provided between battery the voltage terminal and the reference voltage terminal and enters a conduction state when a surge voltage is applied to the battery voltage terminal.
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