The AIC809-46CUTR is a voltage supervisor IC manufactured by Analog Integrations Corporation. It is designed to monitor the voltage level of a power supply and provide a reset signal to a microcontroller or other digital system if the voltage drops below a specified threshold. This ensures proper operation of the system by preventing it from running with insufficient power.

Applications:

• Microcontroller systems
• Embedded systems
• Power supply monitoring
• Battery-powered devices
• Automotive electronics
• Industrial control systems

Features:

• Precision voltage monitoring: Accurate detection of undervoltage conditions.
• Fixed threshold voltage: Predetermined voltage level for reset activation (4.6V in this specific version).
• Open-drain reset output: Flexible interface for various microcontroller systems.
• Active-low reset signal: Reset signal asserted when voltage is below threshold.
• Small package: Available in a compact SOT-23 package for space-constrained applications.
• Low quiescent current: Minimal power consumption to preserve battery life in portable devices.

Benefits:

• Ensures System Stability: Prevents erratic behavior or data corruption by resetting the system during undervoltage conditions.
• Simplifies Power Supply Monitoring: Provides a dedicated solution for voltage monitoring, reducing the need for complex external circuitry.
• Protects Microcontroller: Prevents the microcontroller from operating with insufficient voltage, protecting it from potential damage.
• Reduces Development Time: Easy to integrate into existing designs due to its small package and simple interface.
• Extends Battery Life: Low quiescent current makes it suitable for battery-powered applications.

Additional Details:

The AIC809-46CUTR has a typical reset timeout period of 140ms, ensuring that the system has sufficient time to stabilize after a reset. The device operates over a wide temperature range, typically from -40°C to +85°C, making it suitable for harsh environments. The open-drain output requires a pull-up resistor. The component is RoHS compliant. This voltage supervisor helps prevent brown-out conditions that can damage sensitive electronic equipment.