精确的电流感应对于提高应用安全性至关重要。 将电流控制在限值以内能够避免过热和短路现象。 电流测量也是电能计量的重要组成部分。
- 高达70 V的线路监控功能
- 集成式解决方案（例如输出端具有 EMI滤波功能），缩短了设计时间，降低了BOM
CS70 delivers turn-key solution
The CS70, high-side current sense amplifier deliver a direct measurement of the current flowing through a high-side shunt resistor. A voltage drop as low as 50mV on the shunt is measured with an accuracy better than 2.5%. The common mode voltage and the CS70 supply voltage are fully independent, providing the possibility to measure a current on a line from 2.9 up to 70V, and in the same time to supply the CS70 with the same voltage than the microcontroller.
The pins connected to power lines are rugged against voltage surges and electrostatic discharges. The amplification gain value can be changed on-the-fly by 2 selection pins from 20 to 100. All these features makes the CS70 the ideal device to provide current measurement information to low voltage microcontrollers in digital power conversion applications, such as wireless charging base, also known as induction charging.