The Ricoh R3111D251A is a voltage detector IC designed for use in a variety of electronic applications. It is known for its low power consumption and high accuracy, making it suitable for battery-powered devices and systems requiring precise voltage monitoring. This IC is part of Ricoh's R3111 series, which offers a range of voltage detection thresholds to meet different application requirements.

Applications

• Microcontroller reset circuits: Ensures proper microcontroller operation by resetting it when the supply voltage drops below a safe level.
• Battery voltage monitoring: Protects batteries from over-discharge by detecting low voltage conditions.
• Power management systems: Provides voltage monitoring for efficient power distribution and control.
• Portable electronic devices: Used in devices such as smartphones, tablets, and wearable devices for voltage detection.
• Industrial control systems: Monitors voltage levels in industrial equipment to prevent malfunctions.

Features

• Low supply current: Minimizes power consumption, extending battery life in portable applications.
• High-accuracy detection voltage: Provides precise voltage monitoring for reliable system operation.
• Built-in hysteresis: Prevents oscillations during voltage transitions, ensuring stable operation.
• Small package size: Allows for compact designs in space-constrained applications.
• Wide operating voltage range: Offers flexibility in various operating environments.

Benefits

• Improved system reliability: Prevents system malfunctions due to voltage fluctuations.
• Extended battery life: Low power consumption maximizes the usable life of battery-powered devices.
• Simplified design: Integrated features reduce the need for external components.
• Cost-effective solution: Provides reliable voltage detection at a competitive price.
• Enhanced system protection: Protects sensitive components from damage due to over- or under-voltage conditions.

Additional Details

The R3111D251A has a detection voltage of 2.5V. The package is SOT-23-5. It is a CMOS voltage detector. It also has an operating temperature range of -40°C to +85°C. The device features a built-in hysteresis to prevent chattering and false triggering.