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參數(shù)資料
| 型號(hào)： | FM809RFS3 |
| 英文描述： | Voltage Detector |
| 中文描述： | 電壓檢測(cè)器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 46K |
| 代理商： | FM809RFS3 |
3
www.fairchildsemi.com
F
μ
C
FM809/810 Rev. C
Pin Descriptions
Pin Number
Name
Function
1
GND
GROUND
2
RESET*
RESET (RESET) remains LOW (HIGH)
while V
CC
is below V
TH
, and for at least
140ms after V
CC
rises above V
TH
.
3
V
CC
* with overbar, FM809 (RESET); without, FM810 (RESET).
Circuit Timing (Ex: FM809)
When operating properly with 5V in (for example), V
OUT
will also
be about 5V. When V
IN
starts to fall, V
OUT
will follow it down as
shown. When V
drops below V
, V
OUT
drops to ground ("issues
a RESET") and stays there unless V
IN
operating voltage, approx. 1V. At this point, the supervisor loses
control, and its output may rise, only to again follow V
IN
down to the
ground.
When V
IN
begins to rise, V
OUT
follows it until 1.0V or so is reached,
whereupon the device regains control, V
OUT
is pulled to ground,
etc. When V
IN
rises above V
TH
, V
OUT
comes out of RESET 140 ms
later.
If it is required that a lower value than GND + 1.0V is needed on
RESET signal during V
CC
≤
1V, a 100K resistor may be used on
the device output (to GND for the FM809, to V
CC
for the FM810).
5V
V
TH
1V
GND
5V
V
TH
1V
GND
INPUT
OUTPUT
140ms
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FM809RHS3 | Voltage Detector |
| FM810S | Voltage Detector |
| FM810SE | Voltage Detector |
| FM810SES3 | Voltage Detector |
| FM810SF | Voltage Detector |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FM809RHS3 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| FM809RP3X | 功能描述:監(jiān)控電路 2.63V Gen Circuit active Low Precision RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM809RS3X | 功能描述:監(jiān)控電路 2.63V Gen Circuit active Low Precision RoHS:否 制造商:STMicroelectronics 監(jiān)測(cè)電壓數(shù): 監(jiān)測(cè)電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復(fù)位:Resettable 監(jiān)視器:No Watchdog 電池備用開關(guān):No Backup 上電復(fù)位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM809S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
| FM809SE | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage Detector |
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