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CAT812

Features: `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`Offered in two output configurations:- CAT811: Active LOW reset- CAT812: Active HIGH reset`Manual reset input`Direct replacements for the MAX811 andMAX812 ...

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SeekIC No. : 004310771 Detail

CAT812: Features: `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`Offered in two output configurations:- CAT811: Active L...

CAT812 Data Sheet

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Part Number:
CAT812
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

`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
`Offered in two output configurations:
- CAT811: Active LOW reset
- CAT812: Active HIGH reset
`Manual reset input
`Direct replacements for the MAX811 and
MAX812 in applications operating over the industrial temperature range
`Reset valid down to VCC = 1.0 V
`6 A power supply current
`Power supply transient immunity
`Compact 4-pin SOT143 package
`Industrial temperature range: -40˚C to +85˚C




Application

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




Pinout

Connection Diagram




Specifications

Any pin with respect to ground ........ -0.3 V to +6.0 V
Input Current, VCC .................................. ....... 20 mA
Output Current, RESET, RESET ........................ 20 mA
Rate of Rise, VCC ......................................... 100 V/s
Continuous Power Dissipation
Derate 4mW/ above 70 (SOT143) .......... 320 mW
Operating Temperature Range ........... -40 to +85
Storage Temperature Range ............ -65 to +105
Lead Soldering Temperature (10 sec) .............. 300





Description

The CAT811 and CAT812 are P supervisory circuits that monitor power supplies in digital systems. 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.

CAT812 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 areoffered 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 CAT812 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 to 85) and are available in a compact 4-pin SOT143 package.






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