TMCS1100-Q1

Name: TMCS1100-Q1
Brand: TI
SKU: TMCS1100-Q1
Price: 1.254 USD

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AEC-Q100, ±600-V, precision, isolated current sensor with external reference

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Data sheet

document-pdfAcrobat TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage datasheet PDF | HTML

TMCS1100-Q1

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Data sheet

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Product details

Continuous current (max) (A)

20

Working isolation voltage (VIOWM) (Vrms)

424

Magnetic sensitivity (typ) (mV/A)

50, 100, 200, 400

Input offset current (±) (max) (mA)

40, 47.5, 50, 60

Input offset current drift (±) (typ) (µA/°C)

0.1

Features

Externally Driven Zero Current Reference Voltage

Supply voltage (max) (V)

5.5

Supply voltage (min) (V)

3

Iq (max) (mA)

5

CMTI (kV/µs)

25

Small-signal bandwidth (Hz)

80000

Sensitivity error (%)

0.2

Sensitivity error drift (±) (max) (ppm/°C)

50

Rating

Automotive

TI functional safety category

Functional Safety-Capable

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

Magnetic sensitivity (typ) (mV/A)

50, 100, 200, 400

Input offset current (±) (max) (mA)

40, 47.5, 50, 60

Input offset current drift (±) (typ) (µA/°C)

0.1

Features

Externally Driven Zero Current Reference Voltage

Supply voltage (max) (V)

5.5

Supply voltage (min) (V)

3

Iq (max) (mA)

5

CMTI (kV/µs)

25

Small-signal bandwidth (Hz)

80000

Sensitivity error (%)

0.2

Sensitivity error drift (±) (max) (ppm/°C)

50

Rating

Automotive

TI functional safety category

Functional Safety-Capable

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

AEC-Q100 qualified for automotive applications
- Temperature Grade 1: –40°C to 125°C, T_A
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-kV_RMS 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

AEC-Q100 qualified for automotive applications
- Temperature Grade 1: –40°C to 125°C, T_A
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-kV_RMS 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

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-kV_RMS 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.

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-kV_RMS 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.

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AEC-Q100, ±600-V, precision, isolated current sensor with internal reference Same functionality but with an internal reference voltage

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	Type	Title		Date
*	Data sheet	TMCS1100-Q1 AEC-Q100, 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V Working Voltage datasheet	PDF \| HTML	04 Jun 2021
	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
	EVM User's guide	TMCS1100EVM User's Guide (Rev. B)	PDF \| HTML	25 Aug 2021
	Functional safety information	TMCS1100-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA	PDF \| HTML	30 Mar 2021
	Application note	Thermal Implementation Guide for In-Package Magnetic Current Sensors	PDF \| HTML	12 Jul 2020
	Application brief	Precision Designs with Non-Ratiometric Magnetic Current Sensors		01 Jul 2019

Design & development

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Evaluation board

TMCS1100EVM — TMCS1100 isolated Hall-effect current sensing evaluation module

The TMCS1100EVM is a tool intended to facilitate rapid, convenient use of the TMCS1100, an isolated Hall-effect precision crrent sense monitor utilizing an external reference. This evaluation module allows the user to push the max operating current through the Hall-input side while measuring (...)

User guide: PDF | HTML