HC2F100-SN LEM USA Inc, HC2F100-SN Datasheet - Page 2

• Manufacturer Part Number: HC2F100-SN
• Description: CURRENT SENSOR 100APOLAR
• Manufacturer: LEM USA Inc
• Series: HC2Fr

Specifications of HC2F100-SN

• Current - Sensing: ±100A
• Accuracy: -
• Sensitivity: 20mV/A
• Current - Supply: 15mA ~ 20mA
• Sensor Type: Open Loop Hall Effect
• Voltage - Supply: 4.75 V ~ 5.25 V
• Output: Analog, Ratiometric
• Frequency: 20kHz
• Response Time: 15µs
• Polarization: Bidirectional
• Operating Temperature: -40°C ~ 125°C
• Package / Case: Module
• Other names: Q3206052

Introduction
The HC2F CLIPS Family is for use on the electronic
measurement of DC, AC or pulsed currents in high power and
low voltage automotive applications with a galvanic isolation
between the primary circuit (high power) and the secondary
circuit (electronic circuit).
The HC2F CLIPS family gives you the choice of having different
current measuring ranges in the same housing.
Features
Advantages
Automotive applications
071113/1
Very low thermal offset drift
Open Loop transducer using the Hall effect
Low voltage application
Unipolar + 5 V DC power supply
Primary current measuring range from 80 A up to 250 A
Maximum rms primary admissible current: defined by
busbar to have T° < + 150°C
Operating temperature range: - 40°C < T° < + 125°C
Output voltage full ratio-metric (in gain and offset)
Compact design for PCB mounting.
Excellent accuracy
Very good linearity
Very low thermal gain drift
Wide frequency bandwidth
No insertion losses.
Electrical Power Steering
Starter Generators
Converters ...
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
HC2F100-SN CLIPS
Principle of HC2F CLIPS Family
The open loop transducers use an Hall effect integrated circuit.
The magnetic induction B, contributing to the rise of the Hall
voltage, is generated by the primary current I
The control current I
or generator (Fig. 1).
Within the linear region of the hysteresis cycle, B is proportional
to:
The Hall voltage is thus expressed by:
Except for I
Therefore:
The measurement signal V
voltage or current.
Fig. 1: Principle of the open loop transducer
Primary current I
V
V
I
P
H
H
(B) = constant (a) x I
= (K/d) x I * constant (a) x I
= constant (b) x I
P
, all terms of this equation are constant.
P
P
is supplied by a current source i.e. battery
P
H
amplified to supply the user output
P
P
Isolated output voltage
P
to be measured.
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