Àû²©¡¤(¼¯ÍÅ)ÓÐÏÞ¹«Ë¾¹ÙÍø

General Description

The MAX16033¨CMAX16040 supervisory circuits reduce the complexity and number of components required for power-supply monitoring and battery control functions in microprocessor (?P) systems. The devices significantly improve system reliability and accuracy compared to other ICs or discrete components. The MAX16033¨CMAX16040 provide ?P reset, backup-battery switchover, power-fail warning, watchdog, and chip-enable gating features.

Features

? Low 1.2V Operating Supply Voltage

? Precision Monitoring of 5.0V, 3.3V, 3.0V, and 2.5V?Power-Supply Voltages

? Independent Power-Fail Comparator

? Debounced Manual-Reset Input

? Watchdog Timer, 1.6s Timeout

? Battery-On Output Indicator

? Auxiliary User-Adjustable RESETIN

? Low 13?A Quiescent Supply Current

? Two Available Output Structures:

?? Active-Low Push-Pull Reset

? ?Active-Low Open-Drain Reset

? Active-Low Reset Valid Down to 1.2V

? Power-Supply Transient Immunity

? 140ms (min) Reset Timeout Period

? Small 2mm x 2mm, 8-Pin and 10-Pin ?DFN Packages

Applications

?? Portable/Battery Powered Equipment

?? POS Equipment

?? Critical ?P/?C Power Monitoring

?? Set-Top Boxes

?? Controllers

?? Computers

?? Fax Machines

?? Industrial Control

?? Real-Time Clocks

?? Intelligent Instrument