STMicroelectronics has extended its range of high-side current-sensing portfolio with the TSC102 that simplifies design of smarter and safer systems by sensing current more accurately and giving designers extra flexibility to adjust the sensor's output before inputting to the system controller. The amplifiers provide a fully configurable integrated signal-conditioning amplifier that target automotive, industrial and computer applications.
Accurate sensing of system current is central to effective control of precision equipment performing functions such as positioning, variable-speed operation, or continuous self optimization to maximize energy efficiency. Precision current sensing is also important in a wide variety of safety mechanisms, such as auto-stop for vehicle-window lifters to prevent discomfort or injury to users.
ST's TSC102 is designed for direct connection to a small current-sensing resistor sitting at a voltage up to 30V. This direct connection allows a system to be monitored without disturbing its ground connection, which is essential in applications like automotive systems or for monitoring power supplies with multiple outputs. The device also has rugged inputs to survive applied voltages ranging from -16V to 60V. These voltages can arise in systems where many loads are switching continuously or there is a risk of a reverse battery connection, such as in vehicle electrical infrastructures.
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