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DS1817-5 数据表(PDF) 2 Page - Dallas Semiconductor |
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DS1817-5 数据表(HTML) 2 Page - Dallas Semiconductor |
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2 / 5 page ![]() DS1817 2 of 5 OPERATION - POWER MONITOR The DS1817 provides the function of detecting out-of-tolerance power supply conditions and warning a processor based system of impending power failure. When VCC is detected as out-of-tolerance, the RST signal is asserted. On power-up, RST is kept active for approximately 150 ms after the power supply has reached the selected tolerance. This allows the power supply and microprocessor to stabilize before RST is released. BLOCK DIAGRAM (CMOS OUTPUT) Figure 1 APPLICATION EXAMPLE Figure 2 |
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