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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION

DATA.

TMCS1101

SBOS825A – SEPTEMBER 2019 – REVISED MAY 2020

TMCS1101 1.5% Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V

Working Voltage

1

1 Features

1

•

Total error: ±0.51% typical, ±1.15% maximum,

–40ºC to 85ºC

–

Sensitivity error: ±0.5%

–

Offset error: 9 mA

–

Offset drift: 0.04 mA/ºC

–

Linearity error: 0.05%

•

Lifetime and environmental drift: <±0.5%

•

•

Robust 600-V lifetime working voltage

•

Bidirectional and unidirectional current sensing

•

Zero drift internal reference

•

Operating supply range: 3 V to 5.5 V

•

Signal bandwidth: 80 kHz

•

Multiple sensitivity options:

–

TMCS1101A1U/B: 50 mV/A

–

TMCS1101A2U/B: 100 mV/A

–

TMCS1101A3U/B: 200 mV/A

–

TMCS1101A4U/B: 400 mV/A

•

Safety related certifications (planned)

–

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 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 1.8-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 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 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 TMCS1101 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)

TMCS1101

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