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參數(shù)資料
| 型號： | LM3880MFX-1AD |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號調(diào)理 |
| 英文描述： | Power Sequencer |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO6 |
| 封裝： | SOT-23, 6 PIN |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 216K |
| 代理商： | LM3880MFX-1AD |
CUSTOM SEQUENCER
The LM3880 Power Sequencer is based on a CMOS process
utilizing an EPROM that has the capability to be custom pro-
grammed at the factory. Approximately 500,000,000 different
options are available allowing even the most complex system
to be simply sequenced. Because of the vast options that are
possible, customization is limited to orders of a certain quan-
tity. Please contact National Semiconductor for more infor-
mation.
The variables that can be programmed include the six delay
timers and the reverse sequence order. For the timers, each
can be individually selected from one of the timer selector
columns in the table shown below. However, all six time de-
lays must be from the same column.
Timer Options 1
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
Timer Options 2
0
4
8
12
16
20
24
28
32
36
40
44
48
52
56
60
Timer Options 3
0
6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
Timer Options 4
0
8
16
24
32
40
48
56
64
72
80
88
96
104
112
120
All times listed are in milliseconds
The sequencing order for power up is always controlled by
layout. The flag number translates directly into the sequence
order during power up (ie FLAG1 will always be first). How-
ever, for some systems a different power down order could
be required. To allow flexibility for this aspect in a design, the
Power Sequencer incorporates six different options for con-
trolling the power down sequence. These options can be seen
in the timing diagrams on the next page. This ability can be
programmed in addition to the custom timers.
9
www.national.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LM3880MFX-1AD/NOPB | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)視器:No Watchdog 電池備用開關(guān):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 |
| LM3880MFX-1AE | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Power Sequencer |
| LM3880MFX-1AE/NOPB | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)視器:No Watchdog 電池備用開關(guān):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 |
| LM3880MFX-1AF/NOPB | 功能描述:監(jiān)控電路 RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數(shù): 監(jiān)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(jiān)視器:No Watchdog 電池備用開關(guān):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 |
| LM3880Q | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Power Sequencer |
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