东芝推出无需电流感应电阻的40V／2.0A步进电机驱动IC

由 judy 提交于周三, 22 九月 2021 - 14:14

减少外部组件数量，有助于节省电路板空间

东芝电子元件及存储装置株式会社（“东芝”）今日宣布，步进电机驱动IC产品线添加新成员“<a href="https://toshiba-semicon-storage.com/cn/semiconductor/product/intelligen…;”，旨在为办公自动化设备、商业设备和工业设备提供恒流控制功能。这款新型驱动IC无需电流感应电阻，即可实现恒流电机控制。

TB67S539FTG采用东芝最新推出的DMOSFET器件[1]，可实现40V的电机输出额定电压和2.0A电机输出额定电流[2]。集成电流感测器实现恒流电机控制，并可消除对外部电流感应电阻的需要。用于电机控制的H桥电路采用N沟道／N沟道配置，并内置电荷泵电路，以实现输出级控制。此外，这款新型驱动IC不需要外置电容（通常用于驱动H桥的栅极），因为它已经集成在该产品内部。这有助于节省印刷电路板的空间。

TB67S539FTG支持4.5V至34V的电机驱动电源，适用于采用24V电压驱动的应用以及采用12V驱动的应用，其中包括监控摄像头和投影仪。

为降低使用过程中的热耗散，TB67S539FTG采用紧凑型QFN32封装。输出晶体管漏源导通电阻（高边＋低边）低至0.8Ω（典型值），有助于降低产热。

-    办公自动化、商业和工业设备

-    无需电流感应电阻

-    无需电荷泵电路使用的外置电容

-    睡眠模式低功耗：IM1＝1μA（最大值）@睡眠模式

（除非另有说明，@Ta＝25℃）

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器件型号<o:p></o:p>
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<a href="https://toshiba-semicon-storage.com/cn/semiconductor/product/intelligen… style="mso-bidi-font-size:10.5pt;mso-ascii-font-family:Arial;mso-fareast-font-family:
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工作电压范围<o:p></o:p>
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电机电源<o:p></o:p>

VM（V）<o:p></o:p>
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@Ta＝-20℃至85℃<o:p></o:p>
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40<o:p></o:p>
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支持的电机类型<o:p></o:p>
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双极步进电机<o:p></o:p>
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输出晶体管漏源导通电阻<o:p></o:p>

IOUT＝2.0A<o:p></o:p>
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功耗IM1最大值（μA）<o:p></o:p>
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@睡眠模式<o:p></o:p>
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1<o:p></o:p>
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安全功能<o:p></o:p>
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过流检测、热关断、欠压锁定<o:p></o:p>
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封装<o:p></o:p>
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名称<o:p></o:p>
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QFN32<o:p></o:p>
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库存查询和购买<o:p></o:p>
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<a href="https://toshiba-semicon-storage.com/cn/semiconductor/where-to-buy/stock… lang="EN-US" style="mso-bidi-font-size:10.5pt;font-family:宋体;mso-ascii-font-family:
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