The S-80845ALUP-EA9-T2 is a voltage detector IC manufactured by SII Semiconductor Corporation. It serves as a voltage monitoring device, specifically designed to detect when a voltage level falls below a predetermined threshold. This functionality is critical for preventing malfunctions and data corruption in various electronic systems by providing a reset signal to microcontrollers or other sensitive components during undervoltage conditions.

Applications

• Microcontroller reset circuits: Provides a reliable reset signal to microcontrollers during power-up, power-down, or undervoltage events.
• Power supply monitoring: Monitors the output voltage of power supplies to detect undervoltage conditions and trigger alarms or protective actions.
• Battery-powered devices: Prevents deep discharge of batteries by shutting down the device when the battery voltage falls below a critical level.
• Industrial control systems: Ensures safe and reliable operation of industrial equipment by monitoring voltage levels and initiating safety protocols when necessary.
• Automotive electronics: Protects automotive electronic systems from damage caused by voltage fluctuations or battery discharge.

Features

• High-precision voltage detection: Offers accurate voltage monitoring with a precise detection threshold.
• Low current consumption: Minimizes power consumption, making it suitable for battery-powered applications.
• Compact package size: Allows for integration into space-constrained devices.
• Wide operating temperature range: Ensures reliable operation in various environmental conditions.
• Built-in hysteresis: Prevents output oscillation and ensures stable operation.

Benefits

• Improved system reliability: Prevents system malfunctions and ensures stable operation.
• Extended battery life: Low power consumption extends the operational time of battery-powered devices.
• Simplified circuit design: Reduces the need for external components, simplifying the design process.
• Space savings: Compact package allows for integration into smaller devices.
• Protection against data corruption: Protects data from corruption during undervoltage events.

Additional Details

The S-80845ALUP-EA9-T2 features a detection voltage of 4.5V. Its supply current is extremely low, generally in the microampere range. It is typically available in a small SOT package. The device includes hysteresis to enhance noise immunity and prevent false triggering. The output is generally an N-channel open drain type, requiring a pull-up resistor. The operating temperature range is broad, making it suitable for diverse applications.