The RT9817C-26PH is a voltage detector manufactured by Richtek USA Inc. It's designed to monitor voltage levels in electronic circuits and generate a reset signal when the voltage drops below a specified threshold. This is a critical function for preventing system malfunctions and ensuring data integrity, especially in sensitive electronic devices.

Applications

• Microcontroller systems
• Embedded systems
• Power management circuits
• Battery-powered devices
• Industrial control systems

Features

• Precise voltage detection: Accurately monitors the input voltage to ensure a reliable reset signal.
• Low quiescent current: Minimizes power consumption for extended battery life in portable applications.
• Open-drain output: Flexible output configuration for interfacing with various microcontrollers and digital circuits.
• Hysteresis: Prevents oscillation and ensures a stable reset signal, even with noisy power supplies.
• Small package: Compact design for space-constrained applications.

Benefits

• Improved system reliability: Prevents system crashes and data corruption by providing a timely reset signal.
• Extended battery life: Low power consumption makes it ideal for battery-powered devices.
• Simplified design: Open-drain output simplifies interfacing with other system components.
• Stable operation: Hysteresis ensures a clean and reliable reset signal.
• Compact solution: Small package allows for integration into densely packed circuits.

Additional Details

The RT9817C-26PH features a detection voltage of 2.6V. It utilizes an open-drain output, which requires an external pull-up resistor. The device is designed to operate across a wide temperature range. The built-in hysteresis prevents false reset triggers caused by minor voltage fluctuations or noise. Its primary function is to safeguard the operation of a system by monitoring the supply voltage and triggering a reset when necessary. This is especially important in embedded systems where unexpected voltage drops can lead to unpredictable behavior. The small physical size of the component allows it to be used even in devices where space is at a premium.