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參數資料
| 型號： | FM1233BFS3X |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 3-Pin レC Supervisor Circuit |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | SOT-23, 3 PIN |
| 文件頁數： | 4/6頁 |
| 文件大小： | 31K |
| 代理商： | FM1233BFS3X |
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4
www.fairchildsemi.com
FM1233B Rev. D
General Description
The FM1233B features a highly accurate voltage reference to
which V
CC
is compared. Once V
threshold, it will drive the RESET line and continue to hold it low
until V
CC
returns above the threshold and the time for the
RESET pulse duration has expired. The FM1233B is immune to
short negative going transients on the V
of a 0.1μF bypass capacitor as close as possible to the V
provides additional transient immunity.
CC
is below the speci
fi
ed
CC
line. The placement
CC
pin
For a V
much current on the RESET pin. This is not a problem in most
systems since common devices are not functional in this range.
If it is desired for the FM1233B reset to be functional below this
range, use a 100K
pull-down resistor between RESET and
V
SS
.
Bi-Directional Reset
CC
value below 1.0V, the FM1233B does not sink very
The FM1233B permits an external pushbutton to initiate a reset.
Such a connection to pin 2 will be debounced, RESET will go
low and recover in typically 250ms. For proper operation, the
external switch should be paralleled by an external capacitor of
100pF to 0.01μF.
Connecting an External Reset to the FM1233B
1
FM1233
Controller
2
3
V
CC
GND
100pF
PUSH
BUTTON
RESET
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| FM1233DDS3X | CMOS Low Voltage 2 O SPDT Switch in SC70 Package |
| FM1233DES3X | 3-Pin レC Supervisor Circuit |
| FM1233DFS3X | 3-Pin レC Supervisor Circuit |
| FM1233E | CABLE ASSEM 2MM 40POS F-F 2,1 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FM1233D | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Pin レC Supervisor Circuit |
| FM1233DDS3X | 功能描述:監控電路 4.38V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM1233DES3X | 功能描述:監控電路 4.12V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM1233DFS3X | 功能描述:監控電路 4.62V Gen Circuit Precision Reset RoHS:否 制造商:STMicroelectronics 監測電壓數: 監測電壓: 欠電壓閾值: 過電壓閾值: 輸出類型:Active Low, Open Drain 人工復位:Resettable 監視器:No Watchdog 電池備用開關:No Backup 上電復位延遲（典型值）:10 s 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UDFN-6 封裝:Reel |
| FM1233E | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:3-Pin レC Supervisor Circuit |
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