The BD4140HFV-GTR is a voltage detector IC manufactured by Rohm Semiconductor. It is designed to monitor voltage levels and provide a reset signal when the voltage falls below a specified threshold. This ensures that the system operates within safe voltage limits, preventing malfunctions and data corruption.

Applications

• Microcontroller reset circuits
• Power supply monitoring
• Battery voltage detection
• System voltage supervision

Features

• Precise Voltage Detection: Accurately monitors the input voltage and generates a reset signal when it falls below the threshold.
• Low Current Consumption: Minimizes power consumption, making it suitable for battery-powered applications.
• Hysteresis: Prevents unwanted reset signals due to voltage fluctuations near the threshold.
• Open Drain Output: Allows for flexible interfacing with various microcontroller and digital logic circuits.
• Small Package: Compact package size for space-constrained applications.

Benefits

• Reliable System Operation: Prevents system malfunctions and data corruption by ensuring that the voltage remains within safe operating limits.
• Extended Battery Life: Low current consumption helps to prolong battery life in portable devices.
• Improved Noise Immunity: Hysteresis reduces the likelihood of false reset signals due to noise.

Additional Details

The voltage detection threshold of the BD4140HFV-GTR is fixed, and the precise value can be found in the product's datasheet. The reset output is typically an open-drain output, which requires an external pull-up resistor. Propagation delay and other timings are specified in the datasheet. The ambient temperature range can be found in the documentation.