HC2F100-SN Datasheet, PDF (5/5 Pages) LEM – AUTOMOTIVE CURRENT TRANSDUCER HC2F100-SN CLIPS

HC2F100-SN CLIPS
PERFORMANCES PARAMETERS DEFINITIONS
Output noise voltage:
The output voltage noise is the result of the noise floor of the
Hall elements and the linear I_C amplifier gain.
Magnetic offset:
The magnetic offset is the consequence of an over-current on
the primary side. It’s defined after an excursion of I_{P max}.
Linearity:
The maximum positive or negative discrepancy with a reference
straight line V_OUT = f (I_P).
Unit: linearity (%) expressed with full scale of I_{P max}.
V_OUT
Non linearity example
Sensitivity:
The Transducer’s sensitivity G is the slope of the straight line
V_out = f (I_P), it must establish the relation:
V_out (I_P) = V_C/5 (G x I_P + 2.5) (*)
(*) For all symetrics transducers.
Offset with temperature:
The error of the offset in the operating temperature is the
variation of the offset in the temperature considered with the
initial offset at 25°C.
The offset variation I_OT is a maximum variation the offset in the
temperature range:
I_OT = I_OE max - I_OE min
The Offset drift TCI_OEAV is the I_OT value divided by the temperature
range.
Reference
straight line
Max linearity error
I_P
Linearity variation in IN %
Sensitivity with temperature:
The error of the sensitivity in the operating temperature is the
relative variation of sensitivity with the temperature considered
with the initial offset at 25°C.
The sensitivity variation G_T is the maximum variation (in ppm or
%) of the sensitivity in the temperature range:
G_T = (Sensitivity max - Sensitivity min) / Sensitivity at 25°C.
The sensitivity drift TCG_AV is the G_T value divided by the
temperature range.
Response time (delay time) t_r:
The time between the primary current signal and the output
signal reach at 90 % of its final value
I [A]
90 %
I_P
I_T
I_S
t_r
t [µs]
Typical:
Theorical value or usual accuracy recorded during the
production.
Offset voltage @ I_P = 0 A:
Is the output voltage when the primary current is null. The ideal
value of V_O is V_C/2 at V_C = 5 V. So, the difference of V_O -V_C/2
is called the total offset voltage error. This offset error can be
attributed to the electrical offset (due to the resolution of the
ASIC quiescent voltage trimming), the magnetic offset, the
thermal drift and the thermal hysteresis.
Environmental test specifications
Name
Low T° storage
Thermal shocks
Standard
IEC 60068 Part 2-1
IEC 60068 Part 2-14
Conditions
T° - 40°C / 100 H
not connected
T° - 30°C to 110°C /1000 cycles
not connected
Low T°operation at min
supply voltage
IEC 60068 Part 2-1
T° - 40°C / 1000 H
supply voltage = 4.75 V
Hight T° operation at
max supply voltage
IEC 60068 Part 2-2
T° 125°C / 1000 H
supply voltage = 5.25 V
Temperature humidity
bias
IEC 60068 Part 2-3
T° 90°C / 95 % RH/ 1000 H
supply voltage = 5.25 V
Pressure cooker
Mechanical Tests
Vibration
T° 125°C / 100 % RH, P 0.178 Mpa/100 H
supply voltage = 5 V
IEC 60068-2-64
Room T°, acceleration 100 m/s2,
frequency 20 to 500 Hz/96 H
each axis
Drop test
EMC Test
IEC 60068 Part 2-29 Heigh 750 mm concret floor each directions
Electrostatic discharge
JESD22-A114-B
Applied voltage = ± 2 kV pin to pin number of
discharge =1
18october2011/2
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
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