Current transducer GHS-SME series
GHS 10-SME, GHS 12-SME, GHS 16-SME, GHS 20-SME
IPN = 10 … 20 A
For the electronic measurement of current: DC, AC, pulsed..., with galvanic separation
between the primary and the secondary circuit.
Features
Applications
●● Hall effect measuring principle
●● Motors control
●● Multirange current transducer through PCB
pattern lay-out
●● Galvanic separation between primary and secondary circuit
●● Over current detection
●● Insulated test voltage 2100 V rms
●● Smart metering.
●● Low power consumption
●● The solar inverter on DC side of the inverter (MPTT)
●● Combiner box
●● Extremely low profile
Standards
●● Single power supply +5 V
●● IEC 60950-1: 2005
●● Fixed offset & sensitivity.
●● EN 60749-15: 2010
Advantages
●● Small size and space saving
●● High immunity to external interference
●● High insulation capability
●● Low electrical resistance (0.8 mΩ)
●● No magnetic hysteresis
●● Robust against external fields and cross-talk.
●● EN 60749-20: 2008
●● EN 60749-21: 2011
●● IPC/JEDEC J-STD020: 2014
●● EIA/JEDEC J-STD022-B102: 2004
●● EIA/JEDEC J-STD022-B106: 2008
●● EIA/JEDEC J-STD022-A113: 2015.
Application Domains
●● Industrial.
N°G2.04.13.000.0; N°G2.04.14.000.0; N°G2.04.J5.000.0; N°G2.04.17.000.0
28July2016/Version 0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
Page 1/9
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GHS-SME series
Absolute ratings (not operating)
Parameter
Symbol
Unit
Maximum supply voltage
UC
V
10
Overload capability
ÎP
A
±200
TA = 25 °C, 1 ms pulse
Electrostatic discharge voltage (HMB-Human
Body Model)
UESD HBM
V
2000
AEC-Q100-002 REV D
Electrostatic discharge voltage (CDM-Charged
Device Model)
UESD CDM
V
500
AEC-Q100-0011 REV B
Maximum output current
Iout
mA
70
Maximum output voltage
Vout
V
10
Secondary Reverse voltage
USR
V
TJ
°C
Maximum junction temperature
Min
Typ
Max
Conditions
−0.3
165
Insulation coordination
Parameter
Symbol Unit
Min Typ
Max
Conditions
Example application
Ud
V
300
CAT II PD2 according
to IEC 60664-1
Rms voltage for AC insulation test, 50/60 Hz, 1 min)
Ud
V
2100
according to IEC 60664-1
Impulse withstand voltage 1.2/50 µs
ÛW
V
3600
according to IEC 60664-1
Clearance (pri. - sec.)
dCI
mm
4
Creepage distance (pri. - sec.)
dCp
mm
4
Environmental and mechanical characteristics
Parameter
Symbol
Unit
Min
Typ
Max
Ambient operating temperature
TA
°C
-40
125
Ambient storage temperature
TS
°C
-55
165
Resistance of the primary @TA = 25 °C
RP
mΩ
Conditions
0.8
Page 2/9
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Self diagnostic
Parameter
Symbol Unit Min
Typ
Max Action
Start-up time
tstart
ms
Undervoltage
lockout
UUVLO
V
3.15
3.3
3.45
UUVLO HYST
V
0.25
0.3
0.4
Overvoltage lockout
UOVLO
V
6.7
Overvoltage lockout
hysteresis
UOVLO HYST
V
0.05
Undervoltage
lockout hysteresis
Output
Vout = 100 % of FS
Pull-down resistor
≤ 100 kΩ.
During the power-on
delay the output will
remain at
10 % fault band all the
time
1
7.6
0.1
0.7
Conditions
IC
reset
IC
reset
max 5 % UC, Pull-down mode
min 95 % UC, Pull-up mode
RL ≤ 25 kΩ,
T ≤ 125 °C
max 5 % UC, Pull-down mode
min 95 % UC, Pull-up mode
RL ≤ 25 kΩ,
T ≤ 125 °C
Page 3/9
28July2016/Version 0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Electrical data GHS 10-SME
At TA = −40 °C … 125 °C, UC = +5 V, RL = 6 kΩ.
Parameter
Symbol
Unit
Primary nominal rms current
IPN
A
Primary current, measuring range
IPM
A
−25
Supply voltage
UC
V
4.5
5
5.5
Current consumption
IC
mA
7
12
14
Output voltage range
Vout
% UC
10
90
Maximum output current
(driving capability)
Iout
mA
−2
2
Output current limitation
ISL
mA
35
180
Output internal resistance
Rout
Ω
1
5
tr
µs
5
6
Frequency bandwidth (−3 dB), TA = 25 °C
BW
kHz
100
Output voltage noise (spectral density)
rms
eno
µV/√Hz
25
Capacity loading
CL
nF
10
Load resistance
RL
kΩ
Sensitivity
G
mV/A
80
Offset voltage
VO
V
2.5
Electrical offset voltage
VOE
V
−0.005
0.005
TCVOE
mV/K
−0.1
0.1
TCG
ppm/K
−150
150
Linearity error
εL
%
−0.25
0.25
Sensitivity error
εG
%
−1
1
Accuracy @ IPN 2)
X
%
−1.25
1.25
Accuracy @ IPN @ TA = 105 °C
X
%
−3.5
3.5
Accuracy @ IPN @ TA = 125 °C
X
%
−4
4
1)
Step response time to 90 % of IPN
Temperature coefficient of VOE
Temperature coefficient of G
Min
Typ
Max
Conditions
10
25
6
Pull down ≥ 10 kΩ,
pull up ≥ 10 kΩ
Vout in range (3 % UC,
97 % UC),
RL in range (6 kΩ, 10 kΩ)
Output shorted to ±UC
permanent
Vout = 50 % UC,
RL = 10 kΩ
Stability of the output
100
TA = 25 °C
TA = 25 °C
@ IPN
Factory adjustment
TA = 25 °C
Page 4/9
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Electrical data GHS 12-SME
At TA = −40 °C … 125 °C, UC = +5 V, RL = 6 kΩ.
Parameter
Symbol
Unit
Primary nominal rms current
IPN
A
Primary current, measuring range
IPM
A
−30
Supply voltage 1)
UC
V
4.5
5
5.5
Current consumption
IC
mA
7
12
14
Output voltage range
Vout
% UC
10
90
Maximum output current
(driving capability)
Iout
mA
−2
2
Output current limitation
ISL
mA
35
180
Output internal resistance
Rout
Ω
1
5
tr
µs
5
6
Step response time to 90 % of IPN
Min
Typ
Max
12
30
Frequency bandwidth (−3 dB), TA = 25 °C
BW
kHz
100
Output voltage noise (spectral density)
rms
eno
µV/√Hz
20
Capacity loading
CL
nF
10
Load resistance
RL
kΩ
Sensitivity
G
mV/A
66.7
Offset voltage
VO
V
2.5
Electrical offset voltage
VOE
V
−0.005
0.005
TCVOE
mV/K
−0.1
0.1
TCG
ppm/K
−150
150
Linearity error
εL
%
−0.25
0.25
Sensitivity error
εG
%
−1
1
Accuracy @ IPN 2)
X
%
−1.25
1.25
Accuracy @ IPN @ TA = 105 °C
X
%
−3.5
3.5
Accuracy @ IPN @ TA = 125 °C
X
%
−4
4
Temperature coefficient of VOE
Temperature coefficient of G
Conditions
6
Pull down ≥ 10 kΩ,
pull up ≥ 10 kΩ
Vout in range (3 % UC,
97 % UC),
RL in range (6 kΩ, 10 kΩ)
Output shorted to ±UC
permanent
Vout = 50 % UC,
RL = 10 kΩ
Stability of the output
100
TA = 25 °C
TA = 25 °C
@ IPN
Factory adjustment
TA = 25 °C
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Electrical data GHS 16-SME
At TA = −40 °C … 125 °C, UC = +5 V, RL = 6 kΩ.
Parameter
Symbol
Unit
Primary nominal rms current
IPN
A
Primary current, measuring range
IPM
A
−40
Supply voltage
UC
V
4.5
5
5.5
Current consumption
IC
mA
7
12
14
Output voltage range
Vout
% UC
10
90
Maximum output current
(driving capability)
Iout
mA
−2
2
Output current limitation
ISL
mA
35
180
Output internal resistance
Rout
Ω
1
5
tr
µs
5
6
Frequency bandwidth (−3 dB), TA = 25 °C
BW
kHz
100
Output voltage noise (spectral density)
rms
eno
µV/√Hz
16
Capacity loading
CL
nF
10
Load resistance
RL
kΩ
Sensitivity
G
mV/A
50
Offset voltage
VO
V
2.5
Electrical offset voltage
VOE
V
−0.005
0.005
TCVOE
mV/K
−0.1
0.1
TCG
ppm/K
−150
150
Linearity error
εL
%
−0.25
0.25
Sensitivity error
εG
%
−1
1
Accuracy @ IPN 2)
X
%
−1.25
1.25
Accuracy @ IPN @ TA = 105 °C
X
%
−3.5
3.5
Accuracy @ IPN @ TA = 125 °C
X
%
−4
4
1)
Step response time to 90 % of IPN
Temperature coefficient of VOE
Temperature coefficient of G
Min
Typ
Max
Conditions
16
40
6
Pull down ≥ 10 kΩ,
pull up ≥ 10 kΩ
Vout in range (3 % UC,
97 % UC),
RL in range (6 kΩ, 10 kΩ)
Output shorted to ±UC
permanent
Vout = 50 % UC,
RL = 10 kΩ
Stability of the output
100
TA = 25 °C
TA = 25 °C
@ IPN
Factory adjustment
TA = 25 °C
Page 6/9
28July2016/Version 0
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Electrical data GHS 20-SME
At TA = −40 °C … 125 °C, UC = +5 V, RL = 6 kΩ.
Parameter
Symbol
Unit
Primary nominal rms current
IPN
A
Primary current, measuring range
IPM
A
−50
Supply voltage
UC
V
4.5
5
5.5
Current consumption
IC
mA
7
12
14
Output voltage range
Vout
% UC
10
90
Maximum output current
(driving capability)
Iout
mA
−2
2
Output current limitation
ISL
mA
35
180
Output internal resistance
Rout
Ω
1
5
tr
µs
5
6
Frequency bandwidth (−3 dB), TA = 25 °C
BW
kHz
100
Output voltage noise (spectral density)
rms
eno
µV/√Hz
12
Capacity loading
CL
nF
10
Load resistance
RL
kΩ
Sensitivity
G
mV/A
40
Offset voltage
VO
V
2.5
Electrical offset voltage
VOE
V
−0.005
0.005
TCVOE
mV/K
−0.1
0.1
TCG
ppm/K
−150
150
Linearity error
εL
%
−0.25
0.25
Sensitivity error
εG
%
−1
1
Accuracy @ IPN 2)
X
%
−1.25
1.25
Accuracy @ IPN @ TA = 105 °C
X
%
−3.5
3.5
Accuracy @ IPN @ TA = 125 °C
X
%
−4
4
1)
Step response time to 90 % of IPN
Temperature coefficient of VOE
Temperature coefficient of G
Min
Typ
Max
Conditions
20
50
6
Pull down ≥ 10 kΩ,
pull up ≥ 10 kΩ
Vout in range (3 % UC,
97 % UC),
RL in range (6 kΩ, 10 kΩ)
Output shorted to ±UC
permanent
Vout = 50 % UC,
RL = 10 kΩ
Stability of the output
100
TA = 25 °C
TA = 25 °C
@ IPN
Factory adjustment
TA = 25 °C
Page 7/9
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Ratiometric mode
At UC ±10 %
Parameter
Specification
Typical
Max
Symbol
Unit
Ratiometry error Offset
εr Vo
%
−0.4
0.4
Ratiometry error Sensitivity
εr G
%
−0.4
0.4
Min
Conditions
Vo = 50 % UC
Notes: 1) The output voltage VOUT is fully ratiometric. The offset and sensitivity are dependent on the supply voltage UC relative
to the following formula:
IP = (
2)
5
1
× Vout − Vo) ×
with G in (V/A)
UC
G
Accuracy X at a given temperature (TA > 25 °C) :
XTA = (εL + εG) +
TCVOE
IPN × G
+ TCG × 106) × (TA − 25) × 100
GHS-SMS series, maximum continuous DC current
For all ranges
25
20
IP [A]
15
10
5
0
-40
-20
0
20
40
60
80
100
120
140
TA [°C]
Page 8/9
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com
GHS-SME series
Dimensions GHS-SME series (in mm)
Connection
GHS-SME
UC
1
VOUT
2
100nF
IP+
1
2
3
IP-
4
IP +
Uc
IP+
Vout
IP -
Test
IP -
GND
8
GND
7
6
10nF
5
3
GND
GND
GND
Page 9/9
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LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice
www.lem.com