MAX823TEUK+T 监控电路 MAXIM

MAX823TEUK+T

5-Pin Microprocessor Supervisory Circuits With  Watchdog Timer and Manual Reset

监控电路 5-Pin MPU Supervisor

General Description MAX823TEUK+T

The MAX823/MAX824/MAX825* microprocessor (μP) supervisory circuits combine reset output, watchdog, and manual reset input functions in 5-pin SOT23 and SC70 packages. They significantly improve system reliability and accuracy compared to separate ICs or discrete components. The MAX823/MAX824/MAX825 are specifically designed to ignore fast transients on VCC.

Seven preprogrammed reset threshold voltages are available (see Reset Threshold Table). All three devices have an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V.

Features MAX823TEUK+T

♦ Precision Monitoring of +2.5V, +3V, +3.3V, and +5V Power Supplies 

♦ Operating Current: 6μA (MAX823L/M) (SC70) 

2μA (MAX825T/S/R/Z/Y) (SC70) 

♦ Fully Specified Over Temperature 

♦ 140ms min Power-On Reset 

♦ Guaranteed RESET Valid to VCC = 1V 

♦ Power-Supply Transient Immunity 

♦ Watchdog Timer with 1.6s Timeout 

(MAX823/MAX824)

♦ Manual Reset Input (MAX823/MAX825) 

♦ No External Components 

Applications MAX823TEUK+T

Computers and Controllers

Embedded Controllers

Intelligent Instruments

Automotive Systems

Critical μP Monitoring

Portable/Battery-Powered Equipment