The BD5223G is a voltage detector IC manufactured by Rohm Semiconductor. It is designed to monitor the supply voltage and generate a reset signal when the voltage drops below a specified threshold. This ensures the stable operation of microcontroller-based systems and prevents malfunctions due to undervoltage conditions.
Applications
- Microcontroller reset circuits
- Power supply monitoring
- Portable electronic devices
- Industrial control systems
- Automotive electronics
Features
- High-precision detection voltage
- Low current consumption
- Built-in hysteresis
- Open-drain output
- Small surface-mount package (e.g., SOT-25)
Benefits
- Protects microcontrollers from malfunction due to voltage drops
- Ensures proper reset sequence
- Extends battery life in portable devices
- Provides stable and reliable reset signal
- Reduces board space requirements
Additional Details
The BD5223G features a highly accurate detection voltage, ensuring precise monitoring of the supply voltage. Its low current consumption makes it ideal for battery-powered applications where minimizing power usage is critical. The built-in hysteresis prevents oscillations around the threshold voltage, resulting in a stable and reliable reset signal. The open-drain output allows for flexible interfacing with various microcontrollers and logic circuits. The small surface-mount package facilitates compact designs and efficient board layout. It comes in a 2.3V detection voltage version.
This voltage detector IC is commonly used in microcontroller-based systems to prevent data corruption and system crashes caused by undervoltage conditions. It monitors the supply voltage and asserts a reset signal when the voltage drops below the specified threshold, ensuring that the microcontroller restarts in a known state. It is also used in power supply monitoring circuits to detect undervoltage conditions and trigger appropriate actions. The BD5223G is a reliable and cost-effective solution for voltage monitoring and reset generation in a wide range of electronic applications.
