Datasheet > SP810

SP810

更新时间： 2024-10-01 04:03:19

品牌	Logo	应用领域
西伯斯 - SIPEX		微处理器监控
页数	文件大小	规格书
8页	181K
描述
3 Pin Microprocessor Supervisor Circuit

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数据手册

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SP810 数据手册

SP809 / SP810

3 Pin Microprocessor Supervisor Circuit

FEATURES

■ Ultra Low Supply Current 1µA (typ.)

■ Guaranteed Reset valid to V_CC= 0.9V

SP809

3 Pin SOT-23

■ 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

GND

RESET

■ Tight Voltage Threshold Tolerance: 1.5%

■ Offered in a 3 Pin SOT-23 Package

Now Available in Lead Free Packaging

APPLICATIONS

■ Portable Electronic Devices

■ Electrical Power Meter

■ Digital Still Camera

■ µP Power Monitoring

Part Number

SP809N

SP809

Output Type

Open-Drain Active Low

Push-Pull Active Low

Push-Pull Active High

SP810

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 V_CCsupply 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 rese^CCt comparator to help

identifyinvalidsignals, whichlastlessthan140ms. Theonlydifferencebetweenthemisthatthey

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.

TYPICAL APPLICATION CIRCUIT

µP

RESET

(RESET)

GND

Push-Pull output

Date: 5/02/06 Rev B

SP809/810, 3 Pin Microprocessor Supervisor Circuit

12 3 4 5 6 7 8

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