TMCS1108-Q1

Name: TMCS1108-Q1
Brand: TI
SKU: TMCS1108-Q1
Price: 0.748 USD

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AEC-Q100, isolierter Hall-Effekt-Stromsensor, ±100 V, mit interner Referenz

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Datenblatt

document-pdfAcrobat TMCS1108-Q1 AEC-Q100, 3% Functional Isolation Hall-Effect Current Sensor With ±100-V Working Voltage datasheet (Englisch) PDF | HTML

TMCS1108-Q1

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Datenblatt

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Produktdetails

Continuous current (max) (A)

20

Working isolation voltage (VIOWM) (Vrms)

71

Input offset current (±) (max) (mA)

60, 75, 100, 160

Features

Internal Zero Current Reference Voltage

Supply voltage (max) (V)

5

Supply voltage (min) (V)

3

Small-signal bandwidth (kHz)

80

Sensitivity error (%)

0.9

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

105

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

Functional

Continuous current (max) (A)

20

Working isolation voltage (VIOWM) (Vrms)

71

Input offset current (±) (max) (mA)

60, 75, 100, 160

Features

Internal Zero Current Reference Voltage

Supply voltage (max) (V)

5

Supply voltage (min) (V)

3

Small-signal bandwidth (kHz)

80

Sensitivity error (%)

0.9

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

105

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

Functional

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: ±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 -Q1: 50 mV/A
- TMCS1108A2B/U -Q1: 100 mV/A
- TMCS1108A3B/U -Q1: 200 mV/A
- TMCS1108A4B/U -Q1: 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

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: ±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 -Q1: 50 mV/A
- TMCS1108A2B/U -Q1: 100 mV/A
- TMCS1108A3B/U -Q1: 200 mV/A
- TMCS1108A4B/U -Q1: 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-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 <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-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. Both unidirectional and bidirectional sensing variants are available.

The TMCS1108-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 TMCS1108-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 <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-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. Both unidirectional and bidirectional sensing variants are available.

The TMCS1108-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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Design und Entwicklung

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Evaluierungsplatine

TMCS1108EVM — TMCS1108-Evaluierungsmodul zur isolierten Hall-Effekt-Strommessung

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 (...)

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