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CAT811LTBIGT3 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT811LTBIGT3 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
1 / 9 page © 2005 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice 1 Doc. No. 3005, Rev. R FEATURES s Precision monitoring of +5.0 V ( ± 5%, ± 10%, ± 20%), +3.3 V ( ± 5%, ± 10%), +3.0 V ( ± 10%) and +2.5 V ( ± 5%) power supplies s Manual reset input s Offered in two output configurations: - CAT811: Active LOW reset - CAT812: Active HIGH reset s Direct replacements for the MAX811 and MAX812 in applications operating over the industrial temperature range s Reset valid down to VCC = 1.0 V s 6 µµµµµA power supply current s Power supply transient immunity s Available in SOT-143 packages with Sn or NiPdAu Green Lead finishes. s Industrial temperature range: -40 °°°°°C to +85°°°°°C 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 PIN CONFIGURATION THRESHOLD SUFFIX SELECTOR Nominal Threshold Threshold Suffix Voltage Designation 4.63V L 4.38V M 4.00V J 3.08V T 2.93V S 2.63V R 2.32V Z 1 2 4 3 GND RESET VCC MR CAT811 CAT812 CAT811, CAT812 4-Pin Microprocessor Power Supply Supervisors with Manual Reset DESCRIPTION The CAT811 and CAT812 are microprocessor supervisory circuits that monitor power supplies. 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. 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. The underlying floating gate technology, AE2(TM) used by Catalyst Semiconductor, makes it possible to offer any custom reset threshold value. Seven industry standard threshold levels are offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems. The CAT811 features a RESET push-pull output (active LOW) and the CAT812 features a RESET push-pull output (active HIGH). Fast transients on the power supply are ignored and the output is guaranteed to be in the correct state at Vcc levels as low as 1.0 V. 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. |
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Similar Description - CAT811LTBIGT3 |
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