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參數資料
| 型號： | SP809NEK-4-4 |
| 英文描述： | 3 Pin Microprocessor Supervisor Circuit |
| 中文描述： | 3引腳微處理器監(jiān)控電路 |
| 文件頁數： | 1/8頁 |
| 文件大?。?/td> | 191K |
| 代理商： | SP809NEK-4-4 |
1
Date: 5/02/06 Rev B SP809/810, 3 Pin Microprocessor Supervisor Circuit Copyright 2006 Sipex Corporation
3 Pin Microprocessor Supervisor Circuit
SP809 / SP810
DESCRIPTION
FEATURES
■
Ultra Low Supply Current 1
μ
A (typ.)
■
Guaranteed Reset valid to V
CC
= 0.9V
■
140 ms Min. Power-On Reset Pulse Width
■
Internally Fixed Threshold 2.3V, 2.6V, 2.9V,
3.1V, 4.0V, 4.4V, 4.6V
■
Tight Voltage Threshold Tolerance: 1.5%
■
Offered in a 3 Pin SOT-23 Package
The SP809/SP810 are low power microprocessor (
μ
P) supervisory circuits used to monitor
power supplies in
μ
P and digital systems. They provide applications with benefits of circuit
reliability and low cost by eliminating external components. If the V
supply voltage falls below
preset threshold then a reset signal is asserted for at least 140ms after V
has risen above the
reset threshold. Both the SP809 and SP810 were designed with a reset comparator to help
identify invalid signals, which last less than 140ms. The only difference between them is that they
have an active-low RESET output and active-high RESET output, respectively. Low supply
current (1
μ
A) makes SP809/SP810 ideal for portable equipment. The devices are available in
3 pin SOT-23 package.
TYPICAL APPLICATION CIRCUIT
APPLICATIONS
■
Portable Electronic Devices
■
Electrical Power Meter
■
Digital Still Camera
■
μ
P Power Monitoring
Now Available in Lead Free Packaging
SP809
3 Pin SOT-23
RESET
V
CC
GND
RESET
(RESET)
GND
VCC
RESET
VCC
VCC
μ
P
GND
Push-Pull output
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相關PDF資料 |
PDF描述 |
|---|---|
| SP809NEK-4-6 | 3 Pin Microprocessor Supervisor Circuit |
| SP810 | 3 Pin Microprocessor Supervisor Circuit |
| SP810EK-2-3 | 3 Pin Microprocessor Supervisor Circuit |
| SP810EK-2-6 | 3 Pin Microprocessor Supervisor Circuit |
| SP810EK-2-9 | 3 Pin Microprocessor Supervisor Circuit |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SP809NEK-4-4/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3 Pin Microprocessor Supervisor Circuit |
| SP809NEK-4-6 | 制造商:Exar Corporation 功能描述: |
| SP809NEK-4-6/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3 Pin Microprocessor Supervisor Circuit |
| SP809NEK-L-2-3/TR | 功能描述:監(jiān)控電路 3 PIN MICROPROCESSOR RESET CIRCUIT RoHS:否 制造商:STMicroelectronics 監(jiān)測電壓數: 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: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 |
| SP809NEK-L-2-6 | 制造商:Exar Corporation 功能描述: |
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