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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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LM1830 bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
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LM1830 bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
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1 / 8 page  TLH5700 February 1995 LM1830 Fluid Detector General Description The LM1830 is a monolithic bipolar integrated circuit de- signed for use in fluid detection systems The circuit is ideal for detecting the presence absence or level of water or other polar liquids An AC signal is passed through two probes within the fluid A detector determines the presence or absence of the fluid by comparing the resistance of the fluid between the probes with the resistance internal to the integrated circuit An AC signal is used to overcome plating problems incurred by using a DC source A pin is available for connecting an external resistance in cases where the fluid impedance is of a different magnitude than that of the internal resistor When the probe resistance increases above the preset value the oscillator signal is coupled to the base of the open-collector output transistor In a typical application the output could be used to drive a LED loud speaker or a low current relay Features Y Low external parts count Y Wide supply operating range Y One side of probe input can be grounded Y AC coupling to probe to prevent plating Y Internally regulated supply Y AC or DC output Applications Y Beverage dispensers Y Radiators Y Water softeners Y Washing machines Y Irrigation Y Reservoirs Y Sump pumps Y Boilers Y Aquaria Logic and Connection Diagram Dual-In-Line Package TLH5700 – 1 Order Number LM1830N See NS Package Number N14A C1995 National Semiconductor Corporation RRD-B30M115Printed in U S A |
Số phần tương tự - LM1830 |
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Mô tả tương tự - LM1830 |
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