Product Overview:
ON Semiconductor's CAT811STBI-GT3 is a precision voltage supervisor IC engineered to monitor power supplies in digital systems, providing crucial protection against low-voltage conditions. This device asserts a reset signal whenever the VCC supply falls below its preset threshold, ensuring your system operates reliably.
CAT811STBI-GT3 Product Labels
Key Features:
Precision Monitoring: Accurately monitors 3V, 3.3V, and 5V supply voltages with tight threshold accuracy.
Low Power Consumption: Ideal for battery-operated devices due to its minimal power requirement which extends battery life.
Reset Signal Output: Offers both active-high and active-low reset outputs to interface easily with various logic levels.
Small Footprint Package: Available in a compact SOT‑23 package that fits seamlessly into space-constrained applications.
Technical Specifications:
Voltage Threshold Options: Variety of factory-programmed thresholds
Reset Timeout Delay: Typically (140 ms)
Output Type: Active-low push-pull
Supply Current: Typically (5 \mu A)
Ideal Applications:
This versatile component can be utilized across diverse platforms such as:
Microcontroller-based applications where precise voltage monitoring ensures proper operation during power-up or transient conditions.
Portable electronics requiring efficient power management to maximize uptime between charges.
Automotive systems where consistent performance must be maintained despite fluctuating battery voltages.
Competitive Advantages:
When compared with other supervisory circuits on the market:
The CAT811STBI-GT3 offers superior reliability through its high accuracy detection which prevents false triggering under variable environmental conditions.
Its ultra-low current consumption makes it an environmentally friendly choice contributing towards energy-efficient designs without sacrificing performance.
With ON Semiconductor's commitment to quality manufacturing processes, this supervisor IC delivers consistent functionality expected by industry professionals.
CAT811STBI-GT3 Replacement Model
The CAT811STBI-GT3 is a microprocessor supervisory circuit with a 4-pin SOT-143 package, manufactured by ON Semiconductor. It provides a precision voltage monitor and reset function to ensure proper operation during power-up, power-down, or brown-out conditions.
As for the replacement model from the same manufacturer (ON Semiconductor), you might consider using the NCP301HSN09T1G. This device is also designed to provide processor supervision functions and comes in a similar compact 5-pin TSOP package.
CAT811STBI-GT3
Voltage Threshold: Typically set around specific voltages depending on the variant.
Output Type: Active Low Reset Output
Package Type: SOT-143
Reset Timeout Delay: Fixed options available
This device monitors the system voltage and keeps it within acceptable levels for reliable operation of processors and other sensitive electronics.
Voltage Threshold: Available in various fixed threshold options including one close to that provided by CAT811 variants.
Output Type: Active Low Reset Output with an additional Open Drain option depending on part number.
Package Type: 5-Pin TSOP
Reset Timeout Delay: Adjustable delay time through external capacitor (for certain versions)
The NCP301 series offers precise monitoring of VCC for single-power-supply microprocessors/microcontrollers ensuring that when VCC falls below a defined threshold, the reset output gets activated.
Comparison:
When comparing these two models directly:
Both devices offer active low reset outputs which are common features in supervisory circuits used for monitoring proper startup and shutdown sequences of digital systems.
The packaging differs slightly: The original component comes in an SOT‑143 package while its suggested replacement uses a 5-pin TSOP package; however, both are surface-mount devices suitable for compact PCB layouts.
The NCP301 has more flexibility due to its adjustable timeout feature (on some versions) which allows designers to set their desired reset timeout period using an external capacitor if necessary.
Voltage thresholds available may differ between these two parts so ensuring compatibility with your system's required detection voltage is crucial before making any substitutions.