ON Semiconductor CAT811STBI-GT3 Voltage Supervisor

The CAT811STBI-GT3 from ON Semiconductor is a high-performance microprocessor (µP) supervisory circuit that provides a reliable solution for monitoring power supplies in digital systems. This voltage supervisor is designed to maintain system integrity by asserting a reset signal whenever the VCC supply voltage drops below a preset threshold, ensuring that the µP and other critical components operate within safe parameters.

Key to its functionality, the CAT811STBI-GT3 boasts a precision voltage monitor with a factory-programmed threshold. This component ensures that the connected microprocessor, microcontroller, or other digital systems reset cleanly during power-up, power-down, or brown-out conditions. The reset signal is maintained for a minimum of 140ms after VCC has risen above the reset threshold level, providing ample time for the system to stabilize.

The CAT811 series offers several key features that make it an ideal choice for a wide range of applications, including portable devices, computers, controllers, and intelligent instruments. Its low power consumption is particularly beneficial for battery-powered devices, where energy efficiency is paramount. Additionally, the device's small SOT-23 package is perfect for space-constrained applications.

Specifications of the CAT811STBI-GT3 include:

• Factory-trimmed VCC trip points
• Low supply current of 6 µA (typical)
• 140 ms minimum reset pulse width
• Guaranteed RESET output down to VCC = 1.0V
• Operating temperature range from -40°C to +85°C
• Immunity to short VCC transients
• RoHS-compliant and lead-free

With its robust design, the CAT811STBI-GT3 ensures that all system parameters are brought into compliance before the processor starts executing code. This device is essential for maintaining system reliability and preventing firmware corruption or data loss resulting from inadequate power supply levels. Its high accuracy and reliability make it a trusted choice for safeguarding critical electronic systems.

For designers and engineers looking for a dependable power monitoring solution, the CAT811STBI-GT3 from ON Semiconductor offers the precision, reliability, and features necessary for maintaining optimal system performance and protection.