The AS1904C31-T is a supervisor IC manufactured by ams (Austria Microsystems). These ICs are designed to monitor voltage levels in electronic systems and provide reset signals to microcontrollers or other critical components when a voltage fault occurs. This ensures stable and reliable operation of the system.

Applications

• Microcontroller systems: Monitoring power supply voltage and generating reset signals.
• Embedded systems: Power management and fault detection.
• Industrial control systems: Protecting critical components from voltage fluctuations.
• Automotive electronics: Ensuring reliable operation of automotive systems.
• Power supplies: Monitoring output voltage and providing overvoltage protection.

Features

• Voltage monitoring: Monitors the input voltage and detects undervoltage conditions.
• Reset output: Generates a reset signal when an undervoltage condition is detected.
• Adjustable reset threshold: Allows the user to set the voltage level at which the reset signal is asserted.
• Low power consumption: Minimizes power consumption for battery-powered applications.
• Small package: Available in a small package for space-constrained applications.

Benefits

• Improved system reliability: Protects critical components from voltage fluctuations and ensures stable operation.
• Simplified system design: Simplifies system design by providing a built-in voltage monitoring and reset function.
• Reduced system cost: Reduces system cost by eliminating the need for discrete voltage monitoring components.
• Enhanced system performance: Improves system performance by preventing erratic behavior caused by voltage faults.
• Increased system safety: Protects against potentially dangerous voltage conditions.

Additional Details

The AS1904C31-T has a specific reset threshold voltage that triggers the reset output. The reset timeout period is the duration for which the reset signal is asserted after the voltage returns to an acceptable level. The supply voltage range indicates the range of input voltages that the device can operate within. The quiescent current is the current consumed by the device when it is not actively monitoring a voltage fault. Consult the datasheet for detailed electrical characteristics, timing specifications, and application notes. Proper decoupling is essential for reliable operation. The datasheet provides recommendations for these aspects as well.