在双极性输出与双扩散金属氧化物半导体(DMOS)输出之间实现低导通电阻

实现从双极输出到DMOS输出的低导通电阻

在输出阶段使用双扩散金属氧化物半导体(DMOS)场效应晶体管(FET),实现高效率和高输出电流。

自发明起,双极型晶体管40年来广泛用于各类应用。双极型晶体管需要大输入电流,因此有时需由辅助电路驱动双极型晶体管。

相较于双极型晶体管阵列,新型双扩散金属氧化物半导体(DMOS)场效应晶体管(FET)阵列所需的输入电流明显更低,因此更便于直接连接微控制器(MCU)。此外,DMOS FET晶体管阵列由于输入阶段的导通电阻减小,因此可承受更高的电压且耗电量更低。

  • 与东芝先前的产品系列相比,这款产品的功率损耗大约降低了40%(Ta=25°C,输出电流=200mA)。
  • 低输入电流:0.1mA(最大值)(输入电压=3V)
  • 输出阶段的绝对最大额定值(TBD62064A与TBD62308A系列)
    • 输出击穿电压:50V
    • 输出电流(最大值):1.5A

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