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TMCS1101

ACTIVE

±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference

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Data sheet

TMCS1101

ACTIVE
Data sheet Order now

Product details

Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424 Input offset current (±) (max) (mA) 45, 50, 52.5, 60, 70, 80, 90, 100 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 6 Small-signal bandwidth (kHz) 80 Sensitivity error (%) 0.3 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Basic Surge isolation voltage (VIOSM) (VPK) 6000
Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 424 Input offset current (±) (max) (mA) 45, 50, 52.5, 60, 70, 80, 90, 100 Input offset current drift (±) (typ) (µA/°C) 0.1 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5.5 Supply voltage (min) (V) 3 Iq (max) (mA) 6 Small-signal bandwidth (kHz) 80 Sensitivity error (%) 0.3 Sensitivity error drift (±) (max) (ppm/°C) 50 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Basic Surge isolation voltage (VIOSM) (VPK) 6000
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Total error: ±0.51% typical, ±1.15% maximum, –40°C to 85°C
    • Sensitivity error: ±0.5%
    • Offset error: 9mA
    • Offset drift: 0.04mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3kVRMS isolation rating
  • Robust 600V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3V to 5.5V
  • Signal bandwidth: 80kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50mV/A
    • TMCS1101A2B/U: 100mV/A
    • TMCS1101A3B/U: 200mV/A
    • TMCS1101A4B/U: 400mV/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: 9mA
    • Offset drift: 0.04mA/°C
    • Linearity error: 0.05%
  • Lifetime and environmental drift: <±0.5%
  • 3kVRMS isolation rating
  • Robust 600V lifetime working voltage
  • Bidirectional and unidirectional current sensing
  • Zero drift internal reference
  • Operating supply range: 3V to 5.5V
  • Signal bandwidth: 80kHz
  • Multiple sensitivity options:
    • TMCS1101A1B/U: 50mV/A
    • TMCS1101A2B/U: 100mV/A
    • TMCS1101A3B/U: 200mV/A
    • TMCS1101A4B/U: 400mV/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 1.8mΩ 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 600V lifetime working voltage and 3kVRMS 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 3V to 5.5V 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 6mA, 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 1.8mΩ 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 600V lifetime working voltage and 3kVRMS 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 3V to 5.5V 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 6mA, 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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TMCS1100 ACTIVE ±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with external reference Same functionality, but with an external VREF pin.
TMCS1107 ACTIVE ±420V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality with reduced accurcay and 420-V operational limit.
TMCS1108 ACTIVE ±100V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality with reduced accurcay and 100-V operational limit.

Technical documentation

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Type Title Date
* Data sheet TMCS1101 1 .5 % Precision, Basic Isolation Hall-Effect Current Sensor With ±600V Working Voltage datasheet (Rev. E) PDF | HTML 25 Jun 2025
Application brief Current Sensing Applications in Communication Infrastructure Equipment (Rev. C) PDF | HTML 08 Aug 2023
Application brief Current Sensing in Collaborative and Industrial Robotic Arms (Rev. B) PDF | HTML 24 Jul 2023
Application brief Improving Power Amplifier Efficiency With Current Monitors (Rev. B) PDF | HTML 24 Jul 2023
Application brief Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements (Rev. A) 24 Jul 2023
Application note TMCS110x Layout Challenges and Best Practices PDF | HTML 03 Dec 2022
White paper Improve High-Voltage System Efficiency With Zero-Drift Hall-Effect Current Sense (Rev. A) PDF | HTML 15 Mar 2022
Application note Thermal Implementation Guide for In-Package Magnetic Current Sensors PDF | HTML 12 Jul 2020
Technical article How to select the right current sense technology for your high-voltage system PDF | HTML 06 Jul 2020
EVM User's guide TMCS1101EVM User's Guide (Rev. A) 25 Mar 2020
Technical article How current sensors help monitor and protect the world’s wireless infrastructure PDF | HTML 30 Dec 2019
Application brief Precision Designs with Non-Ratiometric Magnetic Current Sensors 01 Jul 2019

Design & development

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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 (...)
User guide: PDF
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Simulation model

TMCS1101 TINA-TI Reference Design (Rev. A)

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

TMCS1101 TINA-TI SPICE Model (Rev. B)

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

TMCS1101A1B PSpice Model

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

TMCS1101A1U PSpice Model

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

TMCS1101A2B PSpice Model

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

TMCS1101A2U PSpice Model

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

TMCS1101A3B PSpice Model

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

TMCS1101A3U PSpice Model

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

TMCS1101A4B PSpice Model

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

TMCS1101A4U PSpice Model

SBOMBD2.ZIP (21 KB) - PSpice Model
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Calculation tool

CS-MAGNETIC-ERROR-TOOL-CALC — Hall-Effect Current Sensor Comparison and Error Tool

Hall-Effect Current Sensor Comparison and Error Tool
Supported products & hardware

Supported products & hardware

Products
Hall-effect current sensors
TMCS1100 — ±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with external reference TMCS1101-Q1 — AEC-Q100, ±600-V, precision, isolated current sensor with internal reference TMCS1100-Q1 — AEC-Q100, ±600-V, precision, isolated current sensor with external reference TMCS1101 — ±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference TMCS1107 — ±420V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference TMCS1107-Q1 — AEC-Q100, ±420-V isolated Hall-effect current sensor with internal reference TMCS1108 — ±100V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference TMCS1108-Q1 — AEC-Q100, ±100-V isolated Hall-effect current sensor with internal reference TMCS1123 — ±1300V reinforced isolation, 80ARMS 250kHz Hall-effect current sensor with AFR, reference and ALERT TMCS1123-Q1 — AEC-Q100 80ARMS Hall-effect current sensor with AFR and ALERT TMCS1126 — 80ARMS 500kHz Hall-effect current sensor with AFR, reference and ALERT TMCS1126-Q1 — AEC-Q100 qualified 80ARMS 500kHz Hall-effect current sensor with AFR, reference and ALERT TMCS1127 — 80ARMS 250kHz Hall-effect current sensor with AFR TMCS1127-Q1 — AEC-Q100 80ARMS 250kHz Hall-effect current sensor with AFR TMCS1133 — 80ARMS 1MHz Hall-effect current sensor with AFR and ALERT TMCS1133-Q1 — Automotive 1MHz Hall-effect current sensor with AFR and ALERT TMCS1143 — ±849V reinforced isolation, 100ARMS 275kHz Hall-effect current sensor with AFR reference and ALERT TMCS1148 — 100ARMS 500kHz Hall-effect current sensor with AFR, reference and OCP
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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 (...)
User guide: PDF
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