سنسور و مبدل سنسور جریان

Product Attributes

Introduction

The TMCS1100 is an electrically isolated Hall - effect current sensor capable of measuring direct or alternating current, featuring high accuracy, excellent linearity, and temperature stability. The low - drift, temperature - compensated signal chain can achieve a full - scale error of <1% over the device's temperature range. When the input current flows through the internal 1.8mΩ conductor, the magnetic field generated by this conductor can be measured by the integrated Hall - effect sensor. This structure eliminates the need for an external concentrator and simplifies the design. The low conductor resistance minimizes power loss and heat dissipation. The inherent galvanic insulation provides a working voltage of 600V over the service life and a basic isolation of 3kVRMS between the current path and the circuit. The integrated electrical shield offers excellent common - mode rejection and transient immunity. The output voltage is proportional to the input current and has four sensitivity options. The fixed sensitivity allows the TMCS1100 to operate with a single 3V to 5.5V power supply, thus eliminating the ratio error and improving the power - supply noise rejection. When the current flows into the positive input pin, the current polarity is considered positive. The VREF input pin provides a variable zero - current output voltage, enabling bidirectional or unidirectional current detection. The TMCS1100 consumes a maximum supply current of 6mA, and all sensitivity options are rated for an operating temperature range of - 40°C to +125°C.

Features

• Total error: typical ±0.4%, maximum ±0.9%, -40℃ to 85℃
• Sensitivity error: ±0.4%
• Offset voltage error: 7mA
• Temperature drift: 0.04mA/℃
• Linearity error: 0.05%
• Lifetime and environmental drift: <±0.5%
• 3kVRMS isolation rating
• Robust 600V lifetime working voltage
• Bidirectional and unidirectional current sensing
• External reference voltage
• Operating supply voltage range: 3V to 5.5V
• Signal bandwidth: 80kHz
• Multiple sensitivity options:
  • TMCS1100A1: 50mV/A
  • TMCS1100A2: 100mV/A
  • TMCS1100A3: 200mV/A
  • TMCS1100A4: 400mV/A
• Safety-related certifications:
  • UL 1577 component recognition
  • IEC/CB 62368-1

Applications

• Motor and load control
• Inverter and H-bridge current measurement
• Power factor correction
• Overcurrent protection
• DC and AC power supply monitoring