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TMCS1100 Datasheet(PDF) 1 Page - Texas Instruments

Part # TMCS1100
Description  TMCS1100 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With 짹600-V Working Voltage
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMCS1100 Datasheet(HTML) 1 Page - Texas Instruments

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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. PRODUCTION DATA.
TMCS1100
SBOS820A – SEPTEMBER 2019 – REVISED JUNE 2020
TMCS1100 1% High-Precision, Basic Isolation Hall-Effect Current Sensor With ±600-V
Working Voltage
1
1 Features
1
Total error: ±0.4% typical, ±0.9% maximum,
–40ºC to 85ºC
Sensitivity error: ±0.4%
Offset error: 7 mA
Offset drift: 0.04 mA/ºC
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: 50 mV/A
TMCS1100A2: 100 mV/A
TMCS1100A3: 200 mV/A
TMCS1100A4: 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 TMCS1100 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 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 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
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


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