The S-80720SL is a voltage detector IC manufactured by SII Semiconductor Corporation. This IC is designed to monitor a voltage level and generate a reset signal when the voltage falls below a specific threshold. It provides essential protection against voltage drops in various electronic systems, ensuring stable and reliable operation.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power supply monitoring
• Battery monitoring systems
• Overvoltage and undervoltage protection

Features

• High-accuracy voltage detection
• Low current consumption
• Hysteresis included
• Small package size
• Wide operating temperature range

Benefits

• Prevents malfunctions in microcontrollers and CPUs caused by voltage drops.
• Extends battery life in portable devices due to low power consumption.
• Provides stable reset operations due to hysteresis, avoiding oscillations.
• Enables compact designs due to the small package size.
• Suitable for use in a wide range of environments due to the wide operating temperature range.

Detailed Specifications

The S-80720SL features a precise detection voltage of 2.0V. The IC consumes very little current during operation. The built-in hysteresis prevents the output signal from oscillating when the input voltage is near the detection threshold. It's available in a small SOT-23-5 package, which makes it easy to integrate into various applications. The operating temperature range extends from -40°C to +85°C. The output is typically an N-channel open drain output.

The detector monitors the supply voltage to ensure a clean power supply to critical components. If the voltage drops below the threshold, the reset output is activated, preventing errant operation. Upon voltage recovery, the reset is deasserted allowing normal operation to resume. The hysteresis ensures glitch-free operation.