The MVR34HXBRN501 is a current sense resistor from Rohm Semiconductor, designed for accurate current detection in various electronic circuits. Current sense resistors are crucial components used to measure the current flowing through a circuit by measuring the voltage drop across the resistor. The MVR34HXBRN501 offers a resistance value of 0.5 milliohms, allowing for precise current measurement with minimal power loss.

Applications:

• Power supplies: Used to monitor and control current in power supplies, ensuring stable and efficient operation.
• Motor control circuits: Employed to measure motor current, allowing for precise control of motor speed and torque.
• Battery management systems (BMS): Integrated to monitor battery charging and discharging currents, protecting the battery from overcharge and overdischarge.
• Inverters: Utilized to measure current in inverters, enabling efficient conversion of DC to AC power.
• Overcurrent protection circuits: Applied to detect and respond to overcurrent conditions, protecting sensitive electronic components.

Features:

• Low resistance value (0.5 mΩ): Minimizes power loss and voltage drop in the circuit.
• High power rating: Can handle high currents without significant temperature rise.
• High accuracy: Provides precise current measurement for accurate circuit control.
• Excellent temperature coefficient of resistance (TCR): Maintains stable resistance value over a wide temperature range.
• RoHS compliant: Meets environmental regulations for hazardous substances.

Benefits:

• Improved circuit efficiency: Low resistance minimizes power loss, leading to more efficient circuit operation.
• Precise current control: Accurate current measurement allows for precise control of circuit parameters.
• Enhanced system reliability: Overcurrent protection helps to prevent damage to sensitive components.
• Long-term stability: Excellent TCR ensures stable performance over time and temperature.
• Simplified circuit design: Easy integration into various current sensing applications.

Additional Details:

The MVR34HXBRN501 is typically available in a surface mount package, such as 1206 or 2512, depending on the power rating and application requirements. The specific power rating depends on the datasheet. It is designed for surface mount technology (SMT) and compatible with standard reflow soldering profiles. The operating temperature range is typically from -55°C to +170°C. This current sense resistor is constructed using a metal alloy resistive element that provides high stability and low TCR. The terminals are typically tin-plated for enhanced solderability and corrosion resistance. Proper placement and soldering techniques are crucial for optimal performance and accuracy.