CAT811RTBI-GT3
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onsemi CAT811RTBI-GT3

Manufacturer No:
CAT811RTBI-GT3
Manufacturer:
onsemi
Package:
Tape & Reel (TR)
Description:
IC SUPERVISOR 1 CHANNEL SOT143
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The CAT811RTBI-GT3 is a microprocessor supervisory circuit produced by onsemi. This device is designed to monitor power supplies and ensure that the system operates within specified voltage thresholds. It is a direct replacement for the MAX811 and is fully specified over the industrial temperature range of −40°C to +85°C. The CAT811 features a manual reset input and a push-pull output that generates a reset signal when the power supply voltage falls below a preset threshold level.

Key Specifications

ParameterMinTypMaxUnits
VCC Range1.05.5V
Supply Current (ICC)61520μA
Reset Threshold Voltage (VTH)2.63 - 2.632.632.63V
Reset Active Timeout Period140400ms
Operating Ambient Temperature Range−40+85°C
Package TypeSOT-143

Key Features

  • Precision monitoring of power supply voltages with seven industry standard threshold levels supporting +5.0 V, +3.3 V, +3.0 V, and +2.5 V systems.
  • Manual reset input with an internal 20 kΩ pull-up resistor.
  • Active LOW reset output with push-pull configuration.
  • Reset valid down to VCC = 1.0 V.
  • Power supply transient immunity to ignore fast transients.
  • Available in SOT-143 packages with Sn or NiPdAu green lead finishes.
  • Pb-free, halogen-free/BFR-free, and RoHS compliant.

Applications

  • Computers, servers, laptops, and cable modems.
  • Wireless communications.
  • Embedded control systems.
  • White goods and power meters.
  • Intelligent instruments.
  • PDAs and handheld equipment.

Q & A

  1. What is the primary function of the CAT811RTBI-GT3? The primary function is to monitor power supplies and generate a reset signal if the voltage falls below a preset threshold.
  2. What is the operating temperature range of the CAT811RTBI-GT3? The operating temperature range is −40°C to +85°C.
  3. What type of reset output does the CAT811RTBI-GT3 have? The CAT811RTBI-GT3 has an active LOW reset output with a push-pull configuration.
  4. How does the manual reset input work? The manual reset input asserts the reset signal when it is pulled LOW and remains active for at least 140 ms after it returns HIGH.
  5. Is the CAT811RTBI-GT3 Pb-free and RoHS compliant? Yes, it is Pb-free, halogen-free/BFR-free, and RoHS compliant.
  6. What is the typical supply current of the CAT811RTBI-GT3? The typical supply current is 15 μA.
  7. How does the device handle power supply transients? The device has power supply transient immunity to ignore fast transients.
  8. What is the reset active timeout period? The reset active timeout period is between 140 ms and 400 ms.
  9. What package type is the CAT811RTBI-GT3 available in? It is available in a 4-pin SOT-143 package.
  10. Can the CAT811RTBI-GT3 interface with bi-directional reset pins? Yes, it can interface with bi-directional reset pins by using a series resistor.

Product Attributes

Type:Simple Reset/Power-On Reset
Number of Voltages Monitored:1
Voltage - Threshold:2.63V
Output:Push-Pull, Totem Pole
Reset:Active Low
Reset Timeout:140ms Minimum
Operating Temperature:-40°C ~ 85°C (TA)
Mounting Type:Surface Mount
Package / Case:TO-253-4, TO-253AA
Supplier Device Package:SOT-143-4
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Similar Products

Part Number CAT811RTBI-GT3 CAT811STBI-GT3 CAT811TTBI-GT3 CAT812RTBI-GT3 CAT811ZTBI-GT3 CAT810RTBI-GT3 CAT811JTBI-GT3 CAT811LTBI-GT3 CAT811MTBI-GT3
Manufacturer onsemi onsemi onsemi onsemi onsemi onsemi onsemi onsemi onsemi
Product Status Obsolete Active Active Obsolete Obsolete Obsolete Obsolete Active Obsolete
Type Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset Simple Reset/Power-On Reset
Number of Voltages Monitored 1 1 1 1 1 1 1 1 1
Voltage - Threshold 2.63V 2.93V 3.08V 2.63V 2.32V 2.63V 4V 4.63V 4.38V
Output Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole Push-Pull, Totem Pole
Reset Active Low Active Low Active Low Active High Active Low Active High Active Low Active Low Active Low
Reset Timeout 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum 140ms Minimum
Operating Temperature -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA) -40°C ~ 85°C (TA)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount
Package / Case TO-253-4, TO-253AA TO-253-4, TO-253AA TO-253-4, TO-253AA TO-253-4, TO-253AA TO-253-4, TO-253AA TO-236-3, SC-59, SOT-23-3 TO-253-4, TO-253AA TO-253-4, TO-253AA TO-253-4, TO-253AA
Supplier Device Package SOT-143-4 SOT-143-4 SOT-143-4 SOT-143-4 SOT-143-4 SOT-23-3 SOT-143-4 SOT-143-4 SOT-143-4

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