STMicroelectronics Tariff Inquiry

STLQ015M21R

STLQ015M21R is a high-performance, low-side current shunt monitor from STMicroelectronics. It is designed to provide precise and accurate current measurements in a wide range of applications, including battery management systems, motor control, and power supply monitoring.

Description:

The STLQ015M21R is a monolithic integrated circuit that combines a precision shunt voltage-to-frequency converter with an on-chip oscillator, reference voltage source, and output driver. It is available in a compact SOIC-8 package, making it suitable for space-constrained applications.

Features:

1. Wide input voltage range: The STLQ015M21R can operate with input voltages from 3V to 5.5V, making it compatible with a variety of power supply systems.
2. High accuracy: The device offers excellent accuracy and linearity, with a typical accuracy of ±0.5% and a linearity of ±0.05% of FS over temperature.
3. Programmable full-scale current: The full-scale current range can be programmed using external resistors, allowing for customization to specific application requirements.
4. Low output frequency: The output frequency is low (50 Hz to 1 kHz), which is suitable for microcontroller-based systems and reduces the impact of noise on the measurement.
5. Short-circuit protection: The device features built-in short-circuit protection, which limits the output frequency in case of a short circuit, preventing damage to the device.
6. Thermal protection: The STLQ015M21R includes thermal protection to prevent damage due to overheating.
7. Low power consumption: The device has a low power consumption of 1.2 mA (typical) at a 5V supply, making it suitable for battery-powered applications.

Applications:

1. Battery management systems: The STLQ015M21R can be used to monitor the current flowing in and out of batteries, helping to estimate the state of charge and prevent over-discharge or overcharge.
2. Motor control: In motor control applications, the device can be used to measure the current flowing through the motor, allowing for precise control and protection against overloads or short circuits.
3. Power supply monitoring: The STLQ015M21R can be used to monitor the current drawn by various loads in power supply systems, providing information on power consumption and helping to detect faults.
4. Energy harvesting systems: In energy harvesting applications, the device can be used to measure the current generated by the harvesting system, allowing for optimization of the energy storage and usage.
5. Inverter systems: The STLQ015M21R can be used to monitor the current flowing through the inverter, providing feedback for control and protection circuits.

In summary, the STLQ015M21R is a versatile and accurate current shunt monitor that offers a range of features suitable for various applications, including battery management, motor control, and power supply monitoring. Its high accuracy, programmable full-scale current, and low power consumption make it an ideal choice for precision current measurement in a wide range of systems.