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參數(shù)資料
| 型號(hào)： | SP809EK-L-2-9/TR |
| 廠商： | EXAR CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO3 |
| 封裝： | LEAD FREE, MO-178, SOT-23, 3 PIN |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 473K |
| 代理商： | SP809EK-L-2-9/TR |
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February 2011
Rev. 2.0.0
Exar Corporation
www.exar.com
48720 Kato Road, Fremont CA 94538, USA
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
GENERAL DESCRIPTION
The
SP809/SP810
are
low
power
microprocessor (μP) supervisory circuits used
to monitor power supplies in μP and digital
systems.
They provide applications with benefits of
circuit reliability and low cost by eliminating
external components. If the VCC supply
voltage falls below preset threshold then a
reset signal is asserted for at least 140ms
after VCC 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 (1μA) makes SP809/SP810 ideal for
portable equipment.
The devices are available in 3 pin SOT-23
package.
Part Number
Output Type
SP809N
Open Drain Active Low
SP809
Push-Pull Low
SP810
Push-Pull Active High
APPLICATIONS
Portable Electronic Devices
Electrical Power Meters
Digital Still Cameras
P Power Monitoring
FEATURES
Ultra Low Supply Current 1A (typ)
Guaranteed Reset valid to VCC = 0.9V
140ms Power-On Reset Pulse Width
Internally Fixed Threshold
2.3V, 2.6V, 2.9V, 3.1V, 4.4V, 4.6V
1.5% Voltage Threshold Tolerance
3 Pin SOT-23 Package
TYPICAL APPLICATION DIAGRAM
Fig. 1: SP809 / SP810 Application Diagram
相關(guān)PDF資料 |
PDF描述 |
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| SP8481KP | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP32 |
| SP8481KS | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO32 |
| SP8481BP | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP32 |
| SP8481BS | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO32 |
| SP8481JP | 8-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDIP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP809EK-L-3-1/TR | 功能描述:監(jiān)控電路 3 PIN MICROPROCESSOR RESET CIRCUIT 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 |
| SP809EK-L-4-6/TR | 功能描述:監(jiān)控電路 3 PIN MICROPROCESSOR RESET CIRCUIT 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 |
| SP809N | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3 Pin Microprocessor Supervisor Circuit |
| SP809NEK-2.3 | 制造商:Exar Corporation 功能描述:Voltage Detector |
| SP809NEK-2.6 | 制造商:Exar Corporation 功能描述:Voltage Detector |
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