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TMCS1123 Datasheet Precision 250kHz Hall-Effect Current Sensor

Manufacturer: Texas Instruments

Overview: TMCS1123 SBOSA24C – JULY 2023 – REVISED JANUARY 2025 TMCS1123 Precision 250kHz Hall-Effect Current Sensor With Reinforced Isolation Working Voltage, Overcurrent Detection and Ambient Field Rejection.

General Description

The TMCS1123 is a galvanically isolated Hall-effect current sensor with industry leading isolation and accuracy.

An output voltage proportional to the input current is provided with excellent linearity and low drift at all sensitivity options.

Precision signal conditioning circuitry with built-in drift compensation is capable of less than 1.4% maximum sensitivity error over temperature and lifetime with no system level calibration, or less than 0.9% maximum sensitivity error including both lifetime and temperature drift with a one-time calibration at room temperature.

Key Features

  • High continuous current capability: 80ARMS.
  • Robust reinforced isolation.
  • High accuracy.
  • Sensitivity error: ±0.1%.
  • Sensitivity thermal drift: ±20ppm/°C.
  • Sensitivity lifetime drift: ±0.2%.
  • Offset error: ±0.2mV.
  • Offset thermal drift: ±2μV/°C.
  • Offset lifetime drift: ±0.2mV.
  • Non-linearity: ±0.1%.
  • High immunity to external magnetic fields.
  • Precision zero-current reference output.
  • Fast.