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參數(shù)資料
| 型號： | MAX803 |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 復(fù)位半導(dǎo)體 |
| 英文描述： | Very Low Supply Current 3-Pin Microprocessor Reset Monitor(低電源電流，3引腳微處理器復(fù)位監(jiān)控器) |
| 中文描述： | 3引腳微處理器復(fù)位電路 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大小： | 108K |
| 代理商： | MAX803 |
MAX803 Series, NCP803 Series
http://onsemi.com
6
Detail Operation Description
The MAX803, NCP803 series microprocessor reset
supervisory circuits are designed to monitor the power
supplies in digital systems and provide a reset signal to the
processor without any external components. Figure 2 shows
the timing diagram and a typical application below. Initially
consider that input voltage V
CC
is at a nominal level greater
than the voltage detector upper threshold (
VTH
). And the
RESET
(RESET)
output voltage (Pin 2) will be in the high
state for MAX803 and NCP803 devices. If there is an input
power interruption and V
CC
becomes significantly
deficient, it will fall below the lower detector threshold
(V
TH-
). This event causes the RESET output to be in the low
state for the MAX803 and NCP803 devices. After
completion of the power interruption, V
CC
will rise to its
nominal level and become greater than the V
TH
. This
sequence activates the internal oscillator circuitry and
digital counter to count. After the count of the timeout
period, the reset output will revert back to the original state.
t
RP
V
CC
V
TH+
V
TH–
V
CC
V
TH–
0V
V
CC
V
TH–
0V
Input Voltage
Reset Output
MAX803, NCP803
Reset Output
MAX810
Figure 12. Timing Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX803_07 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:Very Low Supply Current 3-Pin Microprocessor Reset Monitor |
| MAX803_EXR+T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3-Pin Microprocessor Reset Circuits |
| MAX803_EXR-T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3-Pin Microprocessor Reset Circuits |
| MAX8033 | 制造商:PCTEL 功能描述:ANTENNA UNIT |
| MAX803-EXR-T | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:3-Pin Microprocessor Reset Circuits |
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