PCS811QIUKFT

更新时间： 2024-01-29 08:57:32

品牌	Logo	应用领域
PULSECORE		微处理器监控
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8页	451K
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PCS811QIUKFT 数据手册

January 2007

rev 0.1

PCS811/PCS812

5-Pin µP Voltage Supervisor with Manual Reset

FEATURES

DESCRIPTION

PCS811/PCS812 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

•

Ultra Low Supply Current 1µA(typ.)

Guaranteed Reset Valid to VCC=0.9V

Available in two Output Types: Push-Pull

Active Low (PCS811), Push-Pull Active High

(PCS812)

external components. PCS811/PCS812 also offer

manual reset input.

•

140ms Min. Power-On Reset Pulse Width

Internally Fixed Threshold 2.3V, 2.6V, 2.7V,

2.9V, 3.1V, 4.0V, 4.4V, and 4.6V

Tight Voltage Threshold Tolerance: 1.5%

Low profile Package: SOT-23-5

These devices perform as valid singles in applications with

VCC ranging from 6.0V down to 0.9V. The reset signal

lasts for a minimum period of 140ms whenever VCC

supply voltage falls below preset threshold. Both PCS811

and PCS812 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.

•

APPLICATIONS

•

Notebook Computers

Digital Still Cameras

PDAs

Critical Microprocessor Monitoring

Low supply current (1µA) makes PCS811/PCS812 ideal

for portable equipment. The devices are available in 5-

SOT-23 package

RESET THRESHOLD

Suffix

Voltage(V)

4.6

Typical Operating Circuit

4.4

4.0

VCC

3.1

2.9

2.7

2.6

VCC

PCS811

(PCS812)

2.3

RESET

INPUT

RESET

(RESET)

GND

Pushbutton

Switch

PulseCore Semiconductor Corporation

1715 S. Bascom Ave Suite 200 Campbell, CA 95008 • Tel: 408-879-9077 • Fax: 408-879-9018

www.pulsecoresemi.com

Notice: The information in this document is subject to change without notice.

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