This product is the TFY-CSB-CD1 current sensor manufactured by Ningbo Taifengyuan Electric. It is a high-precision current measurement module designed based on magnetic sensing and closed-loop operating principles, suitable for scenarios such as DC electric energy meters, charging piles and charging guns. It can accurately measure AC and DC pulses, with a rated current of ±300A and a maximum precision of 0.2%. Featuring fast response speed, 100kHz bandwidth, wide operating temperature range from -40℃ to 85℃, strong anti-interference capability as well as excellent stability and reliability.
Definition | Symbol | Value | Unit |
Primary Rated Current | Ipn | 300 | A |
Secondary Rated Current | Isn | 80 | mA |
Maximum Primary Current | Ip | 360 | A |
Secondary Output Current | Is | 80 × (I/Ipn2) | mA |
Sampling Resistance (±12V@Ip) | Rm | 0~20 | Ω |
Supply Voltage | Vc | ±12V (±5%) | V |
Quiescent Current Consumption (±12V @I=0A) | Ic | ≤10 | mA |
Maximum Current Consumption (±12V@I=Ip) | Im | ≤120 | mA |
Accuracy (@0.01Ipn~0.05Ipn @25°C) | XG | 0.5 | % |
Accuracy (@0.05Ipn~Ipn @25°C) | XG | 0.2 | % |
Quiescent Zero Output (@I=0A,@25°C) | IoE | 5 | μA |
Zero Temperature Drift (I=0A,@-40~85°C) | VoT | 0.1 | mV/°C |
Hysteresis Offset Voltage (@I=0A, after 1×IPN) | VOH | ≤±1 | mV |
Response Time (@90% Ipn) | Tra | 5 | μs |
Bandwidth (@10% Ipn, -3dB) | BW | >100 | kHz |
Constant Magnetic Field Influence (@200mT) | δ | ≤2 | % |
Power Frequency Magnetic Field Influence (400A/m) | δ | ≤1 | % |
