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【产品型号】ATS177
【产品应用】用于无刷直流马达和散热风扇
【产品规格】3-pin SIP
【生产厂家】ATMEL
【技术参数】ATS177 技术参数下载
ATS177系列单极霍尔效应集成传感器：是由一个稳压电源,霍尔电压发生器,差分放大器,施密特触发器和输出放大器组成的磁敏传感电路。
产品特点:反向电压保护/电源电压范围宽/易焊性好。
典型应用场合:直流无刷风机/直流无刷电机/高灵敏的无触点开关。
电源电压4.5--20V。
General Description
ATS177 is an integrated Hall effect latched sensor
designed for electronic commutation of brush-less
DC motor applications。 The device includes an
on-chip Hall voltage generator for magnetic sensing，
a comparator that amplifies the Hall voltage， and a
schmitt trigger to provide switching hysteresis for
noise rejection， and open-collector output。 An
internal bandgap regulator is used to provide
temperature compensated supply voltage for
internal circuits and allows a wide operating supply
range。
If a magnetic flux density larger than threshold Bop，
DO is turned on（low）。 The output state is held until
a magnetic flux density reversal falls below Brp
causing DO to be turned off （high）。
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