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AS1901C22-T

AS1901C22-T Description

The AS1901C22-T is a single-channel voltage supervisor IC designed for monitoring power supply voltages in a variety of electronic systems. Manufactured by ams OSRAM, this supervisor IC is housed in a compact SOT23-3 package, making it suitable for space-constrained applications. Despite its small form factor, the AS1901C22-T offers robust performance and reliability, ensuring that power supply voltages remain within specified limits.

AS1901C22-T Features

• Voltage Monitoring: The AS1901C22-T is designed to monitor a single voltage channel with a threshold voltage of 2.2V. This feature is crucial for ensuring that the power supply voltage does not drop below a critical level, which could lead to system instability or failure.
• Reset Functionality: The IC features an active-low reset output, which asserts when the monitored voltage falls below the threshold. The reset timeout is a minimum of 60ms, providing ample time for the system to stabilize before the reset is released.
• Mounting and Packaging: The AS1901C22-T is available in a surface-mount package, specifically in a tape and reel format (Tape & Reel, TR). This packaging option is ideal for automated assembly processes, enhancing manufacturing efficiency.
• Compliance and Status: The AS1901C22-T is classified under ECCN EAR99 and is REACH unaffected, ensuring compliance with international regulations. The product is also obsolete, which may affect its availability in the market.
• Moisture Sensitivity: With a moisture sensitivity level (MSL) of 1 (unlimited), the AS1901C22-T is highly resistant to moisture, making it suitable for a wide range of environmental conditions.

AS1901C22-T Applications

The AS1901C22-T is ideal for applications where reliable voltage monitoring is essential. Some specific use cases include:

• Power Supply Monitoring: In embedded systems, the AS1901C22-T can be used to monitor the main power supply voltage, ensuring that it remains stable and within safe operating limits.
• Microcontroller Reset: The active-low reset output can be connected to the reset pin of a microcontroller, providing a reliable reset mechanism in case of power supply fluctuations.
• Battery Management: In battery-powered devices, the AS1901C22-T can monitor the battery voltage to prevent over-discharge and ensure proper operation.
• Industrial Control Systems: In industrial environments, the AS1901C22-T can be used to monitor power supplies for critical control systems, ensuring reliable operation and preventing unexpected shutdowns.

Conclusion of AS1901C22-T

The AS1901C22-T is a reliable and compact voltage supervisor IC that offers essential features for monitoring power supply voltages in various electronic systems. Its single-channel monitoring capability, combined with a 2.2V threshold and a 60ms reset timeout, makes it suitable for applications requiring precise voltage control. The surface-mount package and tape and reel format enhance its usability in automated manufacturing processes. Despite being obsolete, the AS1901C22-T remains a viable option for applications where its specific features are required.