The S-80740AL-A4-T1 is a voltage detector IC manufactured by SII Semiconductor Corporation. It is designed to monitor the supply voltage in electronic circuits and generate a reset signal when the voltage falls below a pre-determined threshold, protecting the system from malfunctions and data corruption caused by undervoltage conditions.

Applications

• Microcontroller reset circuits
• CPU reset circuits
• Power management systems
• Battery-powered devices
• Industrial control equipment

Features

• Detection Voltage: 4.0V
• High Accuracy: ±2.0%
• Low Current Consumption: 0.8 μA (TYP.)
• Operating Voltage Range: 0.65 V to 10.0 V
• Output Type: N-channel open drain
• Package: SOT-23-5
• Operating Temperature Range: -40°C to +85°C
• Hysteresis: 5% (TYP.)

Benefits

• Ensures stable and reliable system operation by preventing malfunctions caused by undervoltage.
• Prolongs battery life in portable devices due to its low current consumption.
• Provides precise voltage monitoring with its high-accuracy detection voltage.
• Offers a simple and effective reset function for microcontrollers and CPUs.
• Saves valuable board space due to the compact SOT-23-5 package.
• Provides reliable performance over a wide range of operating temperatures.

Additional Details

The S-80740AL-A4-T1 incorporates hysteresis to improve noise immunity and prevent output oscillations near the threshold voltage. The N-channel open-drain output allows for easy level shifting and flexible connection to various microcontroller or logic circuits. This voltage detector is essential in applications where maintaining a stable supply voltage is critical for proper operation.