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  • TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage

    • SBOSA43 June   2021 TMCS1100-Q1

      PRODUCTION DATA  

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  • TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Power Ratings
    6. 7.6  Insulation Specifications
    7. 7.7  Safety-Related Certifications
    8. 7.8  Safety Limiting Values
    9. 7.9  Electrical Characteristics
    10. 7.10 Typical Characteristics
      1. 7.10.1 Insulation Characteristics Curves
  8. 8 Parameter Measurement Information
    1. 8.1 Accuracy Parameters
      1. 8.1.1 Sensitivity Error
      2. 8.1.2 Offset Error and Offset Error Drift
      3. 8.1.3 Nonlinearity Error
      4. 8.1.4 Power Supply Rejection Ratio
      5. 8.1.5 Common-Mode Rejection Ratio
      6. 8.1.6 Reference Voltage Rejection Ratio
      7. 8.1.7 External Magnetic Field Errors
    2. 8.2 Transient Response Parameters
      1. 8.2.1 Slew Rate
      2. 8.2.2 Propagation Delay and Response Time
      3. 8.2.3 Current Overload Parameters
      4. 8.2.4 CMTI, Common-Mode Transient Immunity
    3. 8.3 Safe Operating Area
      1. 8.3.1 Continuous DC or Sinusoidal AC Current
      2. 8.3.2 Repetitive Pulsed Current SOA
      3. 8.3.3 Single Event Current Capability
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Current Input
      2. 9.3.2 Input Isolation
      3. 9.3.3 High-Precision Signal Chain
        1. 9.3.3.1 Temperature Stability
        2. 9.3.3.2 Lifetime and Environmental Stability
        3. 9.3.3.3 Frequency Response
        4. 9.3.3.4 Transient Response
      4. 9.3.4 External Reference Voltage Input
      5. 9.3.5 Current-Sensing Measurable Ranges
    4. 9.4 Device Functional Modes
      1. 9.4.1 Power-Down Behavior
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Total Error Calculation Examples
        1. 10.1.1.1 Room Temperature Error Calculations
        2. 10.1.1.2 Full Temperature Range Error Calculations
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Development Support
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Receiving Notification of Documentation Updates
    4. 13.4 Support Resources
    5. 13.5 Trademarks
    6. 13.6 Electrostatic Discharge Caution
    7. 13.7 Glossary
  14. 14Mechanical, Packaging, and Orderable Information
  15. IMPORTANT NOTICE

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information
  • sbosa43_oa
  • sbosa43_pm
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DATA SHEET

TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage

1 Features

  • AEC-Q100 qualified for automotive applications
    • Temperature Grade 1: –40°C to 125°C, TA
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Total error: ±0.4% typical, ±0.9% maximum, –40°C to 85°C
    • Sensitivity error: ±0.4%
    • Offset error: 7 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
  • External reference voltage
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Multiple sensitivity options:
    • TMCS1100A1-Q1: 50 mV/A
    • TMCS1100A2-Q1: 100 mV/A
    • TMCS1100A3-Q1: 200 mV/A
    • TMCS1100A4-Q1: 400 mV/A
  • Safety related certifications
    • UL 1577 Component Recognition Program
    • IEC/CB 62368-1

2 Applications

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

3 Description

The TMCS1100-Q1 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% 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 TMCS1100-Q1 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. The VREF input pin provides a variable zero-current output voltage, enabling bidirectional or unidirectional current sensing.

The TMCS1100-Q1 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.

Device Information(1)
PART NUMBER PACKAGE BODY SIZE (NOM)
TMCS1100-Q1 SOIC (8) 4.90 mm × 3.90 mm
(1) For all available packages, see the package option addendum at the end of the data sheet.
Typical Application

4 Revision History

DATE REVISION NOTES
June 2021 * Initial release.

5 Device Comparison

Table 5-1 Device Comparison
PRODUCT SENSITIVITY BIDIRECTIONAL LINEAR MEASUREMENT RANGE, VREF = VS / 2(1) UNIDIRECTIONAL LINEAR MEASUREMENT RANGE, VREF = VGND(1)
ΔVOUT / ΔIIN+, IN– VS = 5 V VS = 3.3 V VS = 5 V VS = 3.3 V
TMCS1100A1-Q1 50 mV/A ±46 A(2) ±29 A(2) 1 A to 96 A(2) 1 A to 62 A(2)
TMCS1100A2-Q1 100 mV/A ±23 A(2) ±14.5 A 0.5 A to 48 A(2) 0.5 A to 31 A(2)
TMCS1100A3-Q1 200 mV/A ±11.5 A ±7.25 A 0.25 A to 24 A(2) 0.25 A to 15.5 A
TMCS1100A4-Q1 400 mV/A ±5.75 A -- 0.125 A to 12 A --
(1) Linear range limited by swing to supply and ground.
(2) Current levels must remain below both allowable continuous DC/RMS and transient peak current safe operating areas to not exceed device thermal limits. See the Safe Operating Area section.

 
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