The S-80818CNY-Z2-U is a voltage detector IC manufactured by ABLIC U.S.A. Inc. It is designed to monitor the power supply voltage of electronic devices. When the power supply voltage drops below a specified detection voltage, the S-80818CNY-Z2-U outputs a reset signal, preventing malfunctions caused by voltage drops. Its low current consumption and compact package make it ideal for use in a wide variety of applications, especially those powered by batteries.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power failure detection
• Battery-powered devices
• System power management

Features

• Detection voltage: 1.8V
• High-accuracy detection voltage: ±2.0%
• Ultra-low current consumption: 0.8 μA (typical)
• Operating voltage range: 0.65 V to 5.5 V
• Package: SOT-23-5
• Built-in hysteresis
• Active low output

Benefits

• Prevents malfunctions due to power supply voltage drops.
• Reduces power consumption in battery-powered devices, extending battery life.
• Simplifies circuit design due to the integrated voltage detection function.
• Improves system reliability.
• Small footprint allows for use in compact devices.

Additional Details

The S-80818CNY-Z2-U voltage detector features a built-in hysteresis, which prevents unstable reset operations caused by noise. The hysteresis width is typically a few tens of millivolts. The output is an N-channel open-drain output, which requires an external pull-up resistor. The operating temperature range is typically -40°C to +85°C. The small SOT-23-5 package contributes to miniaturization of end products. The device's stable performance and reliability make it a suitable choice for use in critical applications. It is commonly used with microcontrollers to ensure that the microcontroller starts up in a known state, preventing unexpected behavior. The device will assert its output when the input voltage is less than 1.8V.