STMicroelectronics

STPS40120CT

The STPS40120CT is a high-performance, single-channel, high-side current shunt regulator from STMicroelectronics. It is designed to provide precise current sensing and control in a wide range of applications, including battery management systems, LED lighting, and motor control.

Description:

The STPS40120CT is a monolithic integrated circuit that combines a precision shunt voltage amplifier, a high-speed current source, and a power MOSFET driver in a single package. It is available in a compact 6-pin SOT-23 package, making it ideal for space-constrained applications.

Features:

1. High-precision shunt voltage sensing: The STPS40120CT provides accurate current sensing with a typical accuracy of ±1% over a wide temperature range.
2. Wide input voltage range: The device can operate with input voltages from 4.5V to 60V, making it suitable for a variety of applications.
3. Programmable current limit: The current limit can be easily adjusted using an external resistor, allowing for customization to specific application requirements.
4. High-speed response: The STPS40120CT features a fast response time of 40µs, enabling it to protect circuits from overcurrent events quickly.
5. Thermal protection: The device includes an over-temperature protection feature that limits the output current if the die temperature exceeds a predefined threshold.
6. Small footprint: The compact SOT-23 package saves board space and allows for easy integration into various applications.

Applications:

1. Battery management systems: The STPS40120CT can be used to monitor and regulate the charging and discharging currents of batteries in applications such as smartphones, laptops, and electric vehicles.
2. LED lighting: The device can be used to control the current through LED arrays, ensuring consistent brightness and protecting the LEDs from overcurrent damage.
3. Motor control: The STPS40120CT can be used to regulate the current supplied to motors in applications like robotics, drones, and industrial automation systems.
4. Power management in industrial and consumer electronics: The device can be used to monitor and control the current in power supplies and power distribution systems.
5. Load protection: The STPS40120CT can be used to protect sensitive loads from overcurrent events by quickly detecting and limiting excessive current draw.

In summary, the STPS40120CT is a versatile and high-performance current shunt regulator that offers precise current sensing and control in a wide range of applications. Its compact form factor, high accuracy, and thermal protection make it an ideal choice for space-constrained and safety-critical applications.