The S-817A20ANB-CUJ-T2 is a voltage detector IC manufactured by SII Semiconductor Corporation. It's designed for monitoring voltage levels in electronic circuits and providing a reset signal when the voltage drops below a certain threshold. This ensures that the system operates within safe parameters and prevents unpredictable behavior due to undervoltage conditions.

Applications

• Microcontroller reset circuits: Ensures proper microcontroller startup and prevents data corruption during power dips.
• Power supply monitoring: Detects undervoltage conditions in power supplies and triggers a shutdown or alarm.
• Battery-powered devices: Monitors battery voltage and prevents deep discharge by shutting down the device when the voltage is too low.
• Industrial control systems: Provides voltage monitoring for critical components to ensure reliable operation.
• Automotive electronics: Monitors voltage levels in various automotive systems to ensure safe and reliable operation.

Features

• High-accuracy detection voltage: Provides precise voltage monitoring with a typical accuracy of ±2%.
• Low current consumption: Minimizes power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: Operates over a wide voltage range, typically from 1.6V to 5.5V.
• Small package size: Available in compact packages such as SOT-23 or similar, saving board space.
• Hysteresis: Includes hysteresis to prevent oscillation near the threshold voltage.
• Built-in delay circuit: Offers a built-in delay circuit for the reset signal, ensuring sufficient time for the system to stabilize.
• Open-drain output: Features an open-drain output, allowing for flexible connection to various circuits.

Benefits

• Improved system reliability: Prevents system malfunctions caused by undervoltage conditions.
• Protection against data corruption: Ensures data integrity by resetting the system during power dips.
• Extended battery life: Low current consumption contributes to longer battery life in portable devices.
• Simplified circuit design: Integrated features such as hysteresis and delay circuit reduce the need for external components.
• Space-saving: Small package size allows for compact designs.

Additional Details

The S-817A20ANB-CUJ-T2 has a detection voltage of 2.0V. The specific operating temperature range, output type (e.g., N-channel open drain), and release voltage can vary. Refer to the manufacturer's datasheet for detailed electrical characteristics, timing diagrams, and application circuit examples. It is typically available in a SOT-23-5 package. The device is RoHS compliant. Always consult the latest datasheet from SII Semiconductor Corporation for the most accurate and up-to-date information regarding specifications and application notes.