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CAT811: Voltage Supervisor, 4-Pin, Push-Pull, Active Low, with Manual Reset

Datasheet: Voltage Supervisor, 4-Pin, Push-Pull, Active Low, with Manual Reset
Rev. 3 (72kB)
Product Overview
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The CAT811 and CAT812 are µP 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.

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, Analog EEPROM used by ON 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.
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 µA power supply current
  • Power supply transient immunity
  • Compact 4-pin SOT143 package
  • Industrial temperature range: -40°C to +85°C
Applications
  • Computers
  • Servers
  • Laptops
  • Cable modems
  • Wireless communications
  • Embedded control systems
  • White goods
  • Power meters
  • Intelligent instruments
  • PDAs and handheld equipment
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (1)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
CAT811LTBI-GT3 Active
Pb-free
Halide free
CAT811 SOT-123-4 527AF 1 260 Tape and Reel 3000 $0.2
CAT811STBI-GT3 Active
Pb-free
Halide free
CAT811 SOT-123-4 527AF 1 260 Tape and Reel 3000 $0.16
CAT811TTBI-GT3 Active
Pb-free
Halide free
CAT811 SOT-123-4 527AF 1 260 Tape and Reel 3000 $0.1733
Market Leadtime (weeks) : 4 to 8
PandS   (2020-09-14 00:00) : >1K
Market Leadtime (weeks) : 8 to 12
Avnet   (2020-08-19 00:00) : >1K
PandS   (2020-09-14 00:00) : >10K
FutureElectronics   (2020-08-19 00:00) : >1K
Market Leadtime (weeks) : 4 to 8
Avnet   (2020-08-19 00:00) : >10K
PandS   (2020-09-14 00:00) : >1K

Product
Description
Pricing ($/Unit)
Compliance
Status
Voltages Monitored
VCC Max (V)
V(TO) Typ (V)
IQ Typ (µA)
Reset Active State
Reset Timer
Manual Reset
Watchdog Timer
Package Type
CAT811LTBI-GT3  
 $0.2 
Pb
H
 Active   
1
5.5
4.63
8
Low
Yes
No
No
SOT-123-4
CAT811STBI-GT3  
 $0.16 
Pb
H
 Active   
1
5.5
2.93
6
Low
Yes
No
No
SOT-123-4
CAT811TTBI-GT3  
 $0.1733 
Pb
H
 Active   
1
5.5
3.08
6
Low
Yes
No
No
SOT-123-4
Case Outlines
527AF   
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