CAT812 Datasheet PDF | Catalyst Semiconductor

Catalyst Semiconductor CAT812

the CAT812 features a RESET push-pull output (active HIGH). The CAT811/812 are fully specified over the industrial temperature range (-40˚C to 85˚C) and are available in a compact 4-pin SOT143 package. The CAT811 and CAT812 are direct replacements for the MAX811 and MAX812 in applications operating over the industrial temperature range; both have a manual reset input.

Part No.	CAT812
Datasheet	CAT812 Download
Manufacturer	Catalyst Semiconductor
Description	4-Pin Microprocessor Power Supply Supervisors
Buy	Stock & Price

FEATURES

s Precision monitoring of H GEN FR ALO EE LE A D F R E ETM s Direct replacements for the MAX811 and +5.0 V (+/- 5%, +/- 10%, +/- 20%), +3.3 V (+/- 5%, +/ 10%), +3.0 V (+/- 10%) and +2.5 V (+/- 5%) power supplies s Offered in two output configurations: MAX812 in applications operating over the industrial temperature range s Reset valid down to VCC = 1.0 V s 6 µA power supply current s Power supply transient immunity s Compact 4-pin SOT143 package s Industrial temperature range: -40˚C to +85˚C - CAT811: Active LOW reset - CAT812: Active HIGH reset s Manual reset input

APPLICATIONS

s Computers s Servers s Laptops s Cable modems s Wireless communications s Embedded control systems s White goods s Power meters s Intelligent instruments s PDAs and handheld equipment

DESCRIPTION

The CAT811 and CAT812 are µP supervisory circuits that monitor power supplies in digital systems. These devices generate a reset signal, which is asserted while the power supply voltage is below a preset threshold level and for at least 140 ms after the power supply level has risen above that level.