Current Transducer HMS 5..20-P
IPN = 5 .. 20 A
For the electronic measurement of currents : DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power)
and the secondary circuit (electronic circuit).
Provisional
All Data are given with a R L = 10 kΩ
Electrical data
Primary nominal
current rms
IPN (A)
Primary current
measuring range
IPM (A)
Primary Conductor
Size x Turns
(mm)
± 15
± 30
± 45
± 60
0.8 x 2 x 4T
0.8 x 2 x 4T
1.2 x 2.2 x 2T
1.2 x 2.2 x 2T
5
10
15
20
VOUT
VREF
RL
ROUT
CL
VC
IC
Output voltage (Analog) @ IP
IP = 0
Reference voltage 1) - Output voltage
VREF Output impedance
VREF Load impedance
Load resistance
Output internal resistance
Capacitive loading
Supply voltage (± 5 %)
Current consumption @ VC = 5 V
Type
HMS
HMS
HMS
HMS
Features
05-P
10-P
15-P
20-P
VREF ± (0.625·IP/IPN) V
VREF ± 0.025
V
2.5 ± 0.025
V
typ. 200
Ω
≥ 200
kΩ
≥2
kΩ
< 10
Ω
<1
µF
5
V
22
mA
Accuracy - Dynamic performance data
X
ε
L
TCVOUT
TCVREF
TCVOUT /VREF
TCG
VOM
t ra
tr
di/dt
Vno
BW
Accuracy 2) @ IPN , TA = 25°C
Linearity error 0 .. IPN
.. 3 x IPN
Temperature coefficient of VOUT @ IP = 0
Temperature coefficient of VREF
Temperature coefficient of VOUT / VREF @ IP = 0
Temperature coefficient of G
Magnetic offset voltage @ IP = 0,
after an overload of 3 x IPN DC
Reaction time @ 10 % of IPN
Response time to 90 % of IPN step
di/dt accurately followed
Output voltage noise (DC .. 10kHz)
(DC .. 1MHz)
Frequency bandwidth (-3 dB)
≤±
≤±
≤±
≤±
≤±
≤±
1
0.5
1
0.4
0.01
0.2
% of IPN
% of IPN
% of IPN
mV/K
%/K
mV/K
≤ ± 0.07% of reading/K
< ± 1.2
<3
<5
> 50
< 20
< 40
DC .. 50
% of IPN
µs
µs
A/µs
mVpp
mVpp
kHz
Ambient operating temperature
Ambient storage temperature
Mass
Standard
according to UL94-V0.
Special feature
• For SMT mounting
Advantages
• Small size and space saving
• Only one design for wide current
ratings range
• High immunity to external
interference.
• Internal & external reference
Applications
• AC variable speed drives
• Static converters for DC motor drives
• Battery supplied applications
• Uninterruptible Power Supplies
(UPS)
(SMPS)
- 40 .. + 85
°C
- 40 .. + 85
°C
app. 6
g
EN 50178 (97-10-01)
Notes : 1) It is possible to overdrive VREF with an external reference voltage
between 2 - 2.8 V providing its ability to sink or source approximately
2.5 mA.
2)
Excluding offset and hysteresis.
070511/2
and secondary circuit
• Isolation test voltage 4300V
• Low power consumption
• Extremely low profile, 12mm
• Single power supply +5V
• Fixed offset & gain
• Isolated plastic case recognized
• Switched Mode Power Supplies
General data
TA
TS
m
• Hall effect measuring principle
• Galvanic isolation between primary
• Power supplies for welding
applications.
Application domain
• Industrial
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
Page 1/4
www.lem.com
Current Transducer HMS 5..20-P
Isolation characteristics
Vb
Vb
Vd
dCp
dCl
CTI
Rated isolation voltage rms
with IEC 61010-1 standards and following conditions
- Single insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
Rated isolation voltage rms
with EN 50178 standards and following conditions
- Reinforced insulation
- Over voltage category III
- Pollution degree 2
- Heterogeneous field
Rms voltage for AC isolation test, 50 Hz, 1 min
Creepage distance
Clearance distance
Comparative tracking index (Group I )
300
V
600
V
4.3
> 8.0
> 8.0
> 600
kV
mm
mm
Safety
This transducer must be used in electric/electronic equipment with respect to
applicable standards and safety requirements in accordance with the following
manufacturer's operating instructions.
Caution! Risk of electrical shock
When operating the transducer, certain parts of the module can carry hazardous
voltage (eg. primary busbar, power supply).
Ignoring this warning can lead to injury and/or cause serious damage.
This transducer is a built-in device, whose conducting parts must be inaccessible
after installation.
A protective housing or additional shield could be used.
Main supply must be able to be disconnected.
Page 2/4
070511/2
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Dimensions HMS 5..20-P (in mm. 1 mm = 0.0394 inch)
16 max.
12 max.
13.5 max.
3.5
10 +/-1.0
A
3.2
+/-0.5
+/-0.4
2
3
4
+/-0.3
1
5.8
P=1.27
6
B
4-0.5*0.25
0.3
S
0.2
S
S
5
Operation Principle
Recommended connection circuit
HMS 05-P
5V
(1)
0V
(2)
Vout
Output
(3)
Vref.(IN/OUT)
0V
V Ref.
IN/OUT
(4)
+Vc
47nF
4.7nF
47nF
HMS 05-P
HMS 10-P
HMS 15-P
HMS 20-P
A
B
TURNS
0.8 t
2.0 w
4t
• General tolerance
1.2 t
2.2 w
2t
• Solder reflow patterns
Mechanical characteristics
(unless otherwise stated)
± 0.2 mm
Remarks
• VOUT is positive when IP flows from terminal 5 (IN) to terminal
6 (OUT).
• Temperature of the primary conductors should not exceed
100°C.
The parts and P.C.B. surface temperature
P b-free reflow profile
Pe ak 25 0deg (5 s ec m ax. ) (*)
245 +/- 5deg
2 to 5 deg /s ec
6 0 + /-15sec
180 +/-3 0s ec.
4 to 8 d eg/s e c
150deg
180d eg
2 t o 5 deg/ sec
Tim e
(*)
preliminary. will be 260 deg (5 sec max.) in final version.
Page 3/4
070511/2
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com
Current Transducer HMS 5..20-P
Method of custody
Followings are the basic regulations for storage of the transducers.
Please take into account the below conditions when you store the Pb free
transducers.
(1)
Store in a place where the temperature and humidity are steady,
avoiding direct sunlight.
(Temperature: 5 .. 35 degree / Humidity: 40 .. 75 %RH)
(2)
Remove from corrosive gas environment such as sulfidizing gas or
chlorine gas.
(3)
Container must be prevented from static charge.
(4)
Remove from grit and dust.
(5)
Prevent from excessive loading.
(6)
After the long-term storage, check soldering performance and
oxidation / rust in terminal area before using. For long-term storage,
keep the package vacuumized, or use dry silica gel and tightly cover
the container.
(7)
Take care not to generate surface condensation, which is created by
rapid temperature change.
Page4/4
070511/2
LEM reserves the right to carry out modifications on its transducers, in order to improve them, without prior notice.
www.lem.com