长期现货优势供应ATS177-PG-B-B     13603002724 
黄先生ATS177系列双极锁存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。 
Features    - 3.5V to 20V DC operation voltage -
Temperature compensation - Wide operatingvoltage range -
Open-Collector pre-driver - 25mA maximum sinking output current.-
Reverse polarity protection - Package ： SIP3 ， SOT23   
Applications    - Brush-less DC Motor - Brush-less DC Fan
- Revolution counting - Speed measurement    General
Description    ATS177 is an integrated Hall effect latched
sensor designed for electronic commutationof brush-less DC motor
applications. The device includes an on-chip Hall voltagegenerator
for magnetic sensing，a comparator that amplifies the Hall voltage，
anda schmitt trigger to provide switching hysteresis for noise
rejection ， and open-collectoroutput. An internal bandgap regulator
is used to provide temperature compensatedsupply voltage for internal
circuits and allows a wide operating supply range. Ifa magnetic flux
density larger than threshold Bop ，DO is turned on （low ）。 Theoutput
state is held until a magnetic flux density reversal falls below Brp
causingDO to be turned off （high）。