STMicroelectronics TSC21x series

The TSC210, TSC211, TSC212, TSC213, TSC214 and TSC215 are a series of zero-drift current sense amplifiers that can sense current via a shunt resistor over a wide range of common mode voltages from -0.3 to +26 V, whatever the supply voltage is. They are available in three different versions, each of them having a different gain. The TSC21x are designed with a specific zero-drift architecture, which can achieve high precision. The TSC21x are current sense amplifiers that may be used in various functions such as precision current measurement, over current protection, current monitoring, feedback loops. These devices fully operate over the broad supply voltage range of 2.7 to 26 V and over the industrial temperature range -40 to 125 °C.

Key features

• Wide common mode voltage: -0.3 to 26 V
• Offset voltage: ±35 µV max. (TSC210)
• 2.7 to 26 V supply voltage
• Different gain available : TSC210 (200 V/V)
• Gain error: ±1% max.
• Offset drift: 0.1 µV/°C max.
• Gain drift: 20 ppm/°C max.
• Quiescent current: 100 µA
• QFN10 (1.8x1.4) and SC70-6

Applications

• Telecom equipment
• Power management
• Notebook computers
• Industrial applications
• Battery chargers

Available tools

 

STEVAL-AETKT2V1:

Evaluation kit for high precision bidirectional current sense amplifiers

The STEVAL-AETKT2V1 evaluation kit implements bidirectional current sense amplifiers by placing a sense resistor either in the high-side or in the low-side. The STEVAL-AETKT2V1 kit consists of a motherboard and two different daughterboards for different gain configurations. The TSC21x family implements zero drift technology and is specially designed to accurately measure current by amplifying the voltage across a shunt resistor connected to its input. The voltage drop (V_sense) is then amplified by an amplifier.

DATA brief

Video

Current sense amplifiers for industrial and automotive applications