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TMCS1108

활성

±100V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference

지금 주문
데이터시트

TMCS1108

활성
데이터시트 지금 주문

제품 상세 정보

Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 71 Magnetic sensitivity (typ) (mV/A) 50, 100, 200, 400 Input offset current (±) (max) (mA) 8, 10, 12, 30 Input offset current drift (±) (typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5 Supply voltage (min) (V) 3 Iq (max) (mA) 5 CMTI (kV/µs) 50 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.9 Sensitivity error drift (±) (max) (ppm/°C) 105 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Functional Surge isolation voltage (VIOSM) (VPK) 6000
Continuous current (max) (A) 20 Working isolation voltage (VIOWM) (Vrms) 71 Magnetic sensitivity (typ) (mV/A) 50, 100, 200, 400 Input offset current (±) (max) (mA) 8, 10, 12, 30 Input offset current drift (±) (typ) (µA/°C) 0.2 Features Internal Zero Current Reference Voltage Supply voltage (max) (V) 5 Supply voltage (min) (V) 3 Iq (max) (mA) 5 CMTI (kV/µs) 50 Small-signal bandwidth (Hz) 80000 Sensitivity error (%) 0.9 Sensitivity error drift (±) (max) (ppm/°C) 105 Rating Catalog Operating temperature range (°C) -40 to 125 Creepage (min) (mm) 4 Clearance (min) (mm) 4 Isolation rating Functional Surge isolation voltage (VIOSM) (VPK) 6000
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Total error: ±1% typical, ±3% maximum, –40°C to 125°C
    • Sensitivity error: ±0.9%
    • Offset error: 40 mA
    • Offset drift: 0.2 mA/°C
    • Linearity error: 0.5%
  • Multiple sensitivity options:
    • TMCS1108A1B/U: 50 mV/A
    • TMCS1108A2B/U: 100 mV/A
    • TMCS1108A3B/U: 200 mV/A
    • TMCS1108A4B/U: 400 mV/A
  • Zero drift internal reference
  • Bidirectional and unidirectional current sensing
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Robust 100-V galvanic isolation
  • Total error: ±1% typical, ±3% maximum, –40°C to 125°C
    • Sensitivity error: ±0.9%
    • Offset error: 40 mA
    • Offset drift: 0.2 mA/°C
    • Linearity error: 0.5%
  • Multiple sensitivity options:
    • TMCS1108A1B/U: 50 mV/A
    • TMCS1108A2B/U: 100 mV/A
    • TMCS1108A3B/U: 200 mV/A
    • TMCS1108A4B/U: 400 mV/A
  • Zero drift internal reference
  • Bidirectional and unidirectional current sensing
  • Operating supply range: 3 V to 5.5 V
  • Signal bandwidth: 80 kHz
  • Robust 100-V galvanic isolation

The TMCS1108 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 <3% 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 100-V functional 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 multiple sensitivity options. Fixed sensitivity allows the TMCS1108 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 TMCS1108 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 TMCS1108 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 <3% 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 100-V functional 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 multiple sensitivity options. Fixed sensitivity allows the TMCS1108 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 TMCS1108 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 활성 ±600V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality, but with 600-V support and improved accuracy.
TMCS1107 활성 ±420V basic isolation, 20Arms 80kHz Hall-effect current sensor with reference Same functionality, but with 420-V support and improved accuracy.

기술 문서

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모두 보기10
유형 직함 날짜
* Data sheet TMCS1108 3% Functional Isolation Hall-Effect Current Sensor With ±100-V Working Voltage datasheet (Rev. A) PDF | HTML 2021/07/01
Application brief Introduction to TI Magnetic Sense Simulator Features PDF | HTML 2023/12/05
User guide Texas Instruments' Magnetic Sense Simulator User's Guide PDF | HTML 2023/12/04
Application brief Current Sensing in Collaborative and Industrial Robotic Arms (Rev. B) PDF | HTML 2023/07/24
Application brief Low-Drift, Precision, In-Line Isolated Magnetic Motor Current Measurements (Rev. A) 2023/07/24
Application note TMCS110x Layout Challenges and Best Practices PDF | HTML 2022/12/03
White paper Improve High-Voltage System Efficiency With Zero-Drift Hall-Effect Current Sense (Rev. A) PDF | HTML 2022/03/15
EVM User's guide TMCS1108EVM User's Guide PDF | HTML 2020/12/04
Application note Thermal Implementation Guide for In-Package Magnetic Current Sensors PDF | HTML 2020/07/12
Application brief Precision Designs with Non-Ratiometric Magnetic Current Sensors 2019/07/01

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

TMCS1108EVM — TMCS1108 절연 홀 효과 전류 감지 평가 모듈

The TMCS1108EVM is intended to facilitate rapid, convenient use of the TMCS1108, an isolated Hall-effect precision current sense monitor utilizing an internal ratiometric reference. This evaluation module (EVM) allows the designer to push the max operating current through the Hall-input side while (...)

사용 설명서: PDF | HTML
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시뮬레이션 모델

TMCS1108 TINA-TI SPICE Model

SBOMBV2.ZIP (55 KB) - TINA-TI Spice Model
다운로드
시뮬레이션 모델

TMCS1108A1B PSpice Model (Rev. A)

SBOMBO7A.ZIP (195 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A1U PSpice Model (Rev. A)

SBOMBV6A.ZIP (194 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A2B PSpice Model (Rev. A)

SBOMBV7A.ZIP (195 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A2U PSpice Model (Rev. A)

SBOMBV5A.ZIP (194 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A3B PSpice Model (Rev. A)

SBOMBO8A.ZIP (195 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A3U PSpice Model (Rev. A)

SBOMBV4A.ZIP (194 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A4B PSpice Model (Rev. A)

SBOMBO9A.ZIP (195 KB) - PSpice Model
다운로드
시뮬레이션 모델

TMCS1108A4U PSpice Model (Rev. A)

SBOMBV3A.ZIP (193 KB) - PSpice Model
다운로드
패키지 핀 다운로드
SOIC (D) 8 옵션 보기
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주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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