Product details

Continuous current (Max) (A) 20 Isolation working voltage VIOWM (rms) (V) 424 Sensitivity (Typ) (mV/A) 50, 100, 200, 400 Sensitivity error (%) 0.3 Sensitivity error drift (+/-) (Max) (ppm/°C) 50 Input offset current (+/-) (Max) (mA) 37.5 Input offset current drift (+/-) (Typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Small signal bandwidth (kHz) 80 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 5 CMTI (kV/µs) 25
Continuous current (Max) (A) 20 Isolation working voltage VIOWM (rms) (V) 424 Sensitivity (Typ) (mV/A) 50, 100, 200, 400 Sensitivity error (%) 0.3 Sensitivity error drift (+/-) (Max) (ppm/°C) 50 Input offset current (+/-) (Max) (mA) 37.5 Input offset current drift (+/-) (Typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Small signal bandwidth (kHz) 80 Supply voltage (Max) (V) 5.5 Supply voltage (Min) (V) 3 Iq (Max) (mA) 5 CMTI (kV/µs) 25
SOIC (D) 8 19 mm² 4.9 x 3.9
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9 mA
    • Offset drift: 0.04 mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3-kVRMS isolation rating
  • Robust 600-V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50 mV/A
    • TMCS1101A2B/U: 100 mV/A
    • TMCS1101A3B/U: 200 mV/A
    • TMCS1101A4B/U: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9 mA
    • Offset drift: 0.04 mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3-kVRMS isolation rating
  • Robust 600-V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50 mV/A
    • TMCS1101A2B/U: 100 mV/A
    • TMCS1101A3B/U: 200 mV/A
    • TMCS1101A4B/U: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1

The TMCS1101 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides < 1.5% full-scale error across the device temperature range.

The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.

The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1101 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.

The TMCS1101 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C.

The TMCS1101 is a galvanically isolated Hall-effect current sensor capable of DC or AC current measurement with high accuracy, excellent linearity, and temperature stability. A low-drift, temperature-compensated signal chain provides < 1.5% full-scale error across the device temperature range.

The input current flows through an internal 1.8-mΩ conductor that generates a magnetic field measured by an integrated Hall-effect sensor. This structure eliminates external concentrators and simplifies design. Low conductor resistance minimizes power loss and thermal dissipation. Inherent galvanic insulation provides a 600-V lifetime working voltage and 3-kVRMS basic isolation between the current path and circuitry. Integrated electrical shielding enables excellent common-mode rejection and transient immunity.

The output voltage is proportional to the input current with four sensitivity options. Fixed sensitivity allows the TMCS1101 to operate from a single 3-V to 5.5-V power supply, eliminates ratiometry errors, and improves supply noise rejection. The current polarity is considered positive when flowing into the positive input pin. Both unidirectional and bidirectional sensing variants are available.

The TMCS1101 draws a maximum supply current of 6 mA, and all sensitivity options are specified over the operating temperature range of –40°C to +125°C.

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TMCS1101 won a gold Leadership in Engineering Achievement Program (LEAP) Award in the Switches & Sensors category.

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Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TMCS1101EVM — TMCS1101 isolated Hall-effect current sensing evaluation module

The TMCS1101EVM is a tool intended to facilitate rapid, convenient use of the TMCS1101, an isolated Hall-effect precision current sense monitor utilizing an internal ratiometric reference. This evaluation module allows the user push the max operating current through the Hall-input side while (...)
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Simulation model

TMCS1101 TINA-TI Reference Design (Rev. A)

SBOMB08A.TSC (231 KB) - TINA-TI Reference Design
Simulation model

TMCS1101 TINA-TI SPICE Model (Rev. B)

SBOMB09B.ZIP (54 KB) - TINA-TI Spice Model
Simulation model

TMCS1101A4U PSpice Model

SBOMBD2.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A4B PSpice Model

SBOMBD3.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A3U PSpice Model

SBOMBD4.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A3B PSpice Model

SBOMBD5.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A2U PSpice Model

SBOMBD7.ZIP (22 KB) - PSpice Model
Simulation model

TMCS1101A2B PSpice Model

SBOMBD8.ZIP (22 KB) - PSpice Model
Simulation model

TMCS1101A1U PSpice Model

SBOMBD9.ZIP (21 KB) - PSpice Model
Simulation model

TMCS1101A1B PSpice Model

SBOMBE1.ZIP (20 KB) - PSpice Model
Simulation tool

TINA-TI — SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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SOIC (D) 8 View options

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