The S-80721SN-DJ-T1 is a voltage detector IC manufactured by SII Semiconductor Corporation. This IC is designed to monitor the supply voltage and generate a reset signal when the voltage drops below a predefined threshold. This functionality is critical for ensuring the reliable operation of microcontrollers, microprocessors, and other sensitive electronic components.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power supply monitoring in embedded systems
• Battery voltage monitoring in portable devices
• Overvoltage/Undervoltage protection circuits

Features

• High-precision detection voltage
• Low current consumption
• Built-in hysteresis
• Small SOT-23-5 package
• Wide operating temperature range

Benefits

• Ensures reliable microcontroller operation by preventing erroneous code execution during voltage drops.
• Extends battery life in portable devices due to minimal current draw.
• Prevents oscillation of the reset signal near the threshold voltage, ensuring clean reset behavior.
• Easy integration into space-constrained applications due to its compact size.
• Suitable for use in a variety of environments due to its wide operating temperature range.

Detailed Specifications

The S-80721SN-DJ-T1 has a detection voltage of 2.1V. Its low current consumption is beneficial for extending battery life in portable applications. The built-in hysteresis prevents the output from oscillating when the input voltage is near the detection threshold. The SOT-23-5 package allows for easy integration into compact electronic devices. The operating temperature range is from -40°C to +85°C. The output is an N-channel open drain output.

The voltage detector is commonly used in applications where a stable and reliable power supply is essential for proper system operation. By monitoring the supply voltage and generating a reset signal when necessary, the S-80721SN-DJ-T1 helps to prevent data corruption and system malfunctions.