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HO120-P Datasheet(PDF) 6 Page - LEM

Part No. HO120-P
Description  Current Transducer
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Manufacturer  LEM [LEM]
Direct Link  http://www.lem.co.jp/HQ/en
Logo LEM - LEM

HO120-P Datasheet(HTML) 6 Page - LEM

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16July2015/Version 5
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
HO 60 .. 250-P series
Electrical data HO 120-P-0100
At T
A = 25 °C, UC = +5 V, RL = 10 kΩ unless otherwise noted (see Min, Max, typ. definition paragraph in page 13).
Parameter
Symbol
Unit
Min
Typ
Max
Comment
Primary nominal rms current
I
PN
A
120
Primary current, measuring range
I
PM
A
−300
300
@ U
C ≥ 4.6 V
Number of primary turns
N
P
-
1
See application information
Supply voltage 1)
U
C
V
4.5
5
5.5
Current consumption
I
C
mA
19
25
Reference voltage (output)
V
ref
V
2.48
2.5
2.52
Internal reference
Reference voltage (input)
V
ref
V
0.5
2.65
External reference
Output voltage range @ I
PM
V
out − Vref
V
−2
2
Over operating temperature range
V
ref output resistance
R
ref
Ω
130
200
300
Series
V
out output resistance
R
out
Ω
2
5
Series
Allowed capacitive load
C
L
nF
0
6
OCD output: On resistance
R
on
Ω
70
95
150
Open drain, active low
Over operating temperature range
OCD output: Hold time
t
hold
ms
0.7
1
1.4
Additional time after threshold has
released
EEPROM control
V
out
mV
0
50
V
out forced to GND when EEPROM
in an error state 2)
Electrical offset voltage @ I
P = 0 A
V
OE
mV
−5
5
V
out − Vref @ Vref = 2.5 V
Electrical offset current
Referred to primary
I
OE
A
−0.75
0.75
Temperature coefficient of V
ref
TCV
ref
ppm/K
−170
170
−40 °C … 105 °C
Temperature coefficient of V
OE
TCV
OE
mV/K
−0.075
0.075
−40 °C … 105 °C
Offset drift referred to primary
@ I
P = 0 A
TCI
OE
mA/K
−11.25
11.25
−40 °C … 105 °C
Theoretical sensitivity
G
th
mV/A
6.667
800 mV @ I
PN
Sensitivity error @ I
PN
ε
G
%
−0.5
0.5
Factory adjustment
(straight bus-bar)
Temperature coefficient of G
TCG
ppm/K
−350
350
−40 °C … 105 °C
Linearity error 0 … I
PN
ε
L
% of I
PN
−0.5
0.5
Linearity error 0 … I
PM
ε
L
% of I
PM
−0.5
0.5
Magnetic offset current (@ 10 × I
PN)
referred to primary
I
OM
A
−0.92
0.92
One turn
Reaction time @ 10 % of I
PN
t
ra
µs
2.5
@ 50 A/µs
Response time @ 90 % of I
PN
t
r
µs
3.5
@ 50 A/µs
Frequency bandwidth (−3 dB)
BW
kHz
100
Small signals
Output rms voltage noise (spectral
density)
(100 Hz … 100 kHz)
e
no
5.3
Output voltage noise
(DC … 10 kHz)
(DC … 100 kHz)
(DC … 1 MHz)
V
no
mVpp
3.2
7.5
14.6
Over-current detect
A
2.64
× I
PN
2.93
× I
PN
3.22
× I
PN
Peak value ±10 %
Accuracy @ I
PN
X
% of I
PN
-1
1
Accuracy @ I
PN @ TA = +105 °C
X
% of I
PN
-4.55
4.55
See formula note 3)
Accuracy @ I
PN @ TA = +85 °C
X
% of I
PN
-3.66
3.66
See formula note 3)
Notes: 1) 3.3 V SP version available
2)
EEPROM in an error state makes the transducer behave like a reverse current saturation. Use of the OCD may help to
differentiate the two cases
3)
µV/ Hz
X
TA
=
X + ( TCG
10000
TCI
OE
1000 × I
P
×
100 × (T
A – 25)).
Accuracy @
(% of I
PN)
× (
T
A – 25) +


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