Open-Loop Sensor (EV)
01
HS78-600A/900A-C Current Sensor
peculiarity
◆ Open-loop Hall ASIC principle；
◆ Primary side and secondary side isolation;
◆ Low power consumption;
◆ Wide range;
◆ No insertion loss
◆ Raw material conforms to UL 94-V0
Application
◆ Motor controller
◆ Uninterruptible power supply (UPS)
◆ Static converter driven by DC motor
◆ Switching Power Supply (SMPS)
◆ Power supply for welding machine
Model list
| Product model | ||
| Model number | Rated input current IPN (A) | Measuring Range IPM (A) |
|
HS78-600A/900A-C |
600/900 |
±600/±900 |
S78-600A/900A-C Parameter list
|
Parameter |
symbol |
unit | Minimum value | ypical value | Maximum value | remark |
| 1; 2; 3 Electrical specifications of the channel | ||||||
| Primary side rated current |
IPN |
A |
- |
600 |
- |
|
| Primary current measurement range |
IPM |
A |
-600 |
- |
600 | |
| Supply voltage |
VC |
V |
4.75 | 5.0 | 5.25 | |
| Output voltage |
VOUT |
V |
VOUT=(VC/5)·(2.5+Gth·IPN) | @ VC=5V | ||
| Zero output voltage |
VQOV |
V |
2.48 | 2.5 | 2.52 | @VC=5V andIP=0A |
| Theoretical gain |
Gth |
mV/A |
- |
3.33 |
- |
|
| Current consumption |
IC |
mA |
- |
60 |
70 |
@VC=5V |
| Load resistance |
RL |
kΩ |
10 |
- |
unlimited | @VOUT to GND |
| Load capacitance |
C2 |
nF |
- |
- |
2.2 | |
| Power filter capacitance |
C1 |
µF |
- |
- |
- |
|
| 4; 5; 6 Electrical specifications of the channel | ||||||
| Primary side rated current |
IPN |
A |
- |
900 |
- |
|
| Primary current measurement range |
IPM |
A |
-900 |
- |
900 | |
| Supply voltage |
VC |
V |
4.75 | 5.0 | 5.25 | |
| Output voltage |
VOUT |
V |
VOUT=(VC/5)·(2.5+Gth·IPN) | @ VC=5V | ||
| Zero output voltage |
VQOV |
V |
2.48 | 2.5 | 2.52 | @VC=5V andIP=0A |
| Theoretical gain |
Gth |
mV/A |
- |
2.22 |
- |
|
| Current consumption |
IC |
mA |
- |
60 |
70 |
@VC=5V |
| Load resistance |
RL |
kΩ |
10 |
- |
unlimited | @VOUT to GND |
| Load capacitance |
C2 |
nF |
- |
- |
2.2 | |
| Power filter capacitance |
C1 |
µF |
- |
- |
- |
|
| Performance parameter | ||||||
| Gain error |
ƐG |
% |
- |
±2 |
- |
@TA=25℃ |
| Temperature drift of gain error |
TCG |
%/℃ |
-0.03 |
±0.01 |
0.03 | @TA -40℃~125℃ |
| Zero error |
VOE |
mV |
- |
±20 |
- |
@VC=5V and IP=0A |
| Zero error of temperature drift |
TCVOE |
mV/℃ |
-0.08 |
±0.01 |
0.08 | @TA -40℃~125℃ |
| Magnetic offset voltage |
VOM |
mV |
-4 |
- |
4 |
@TA=25℃，VC=5V |
| Nonlinear error |
ƐL |
% of IPN |
-0.5 |
- |
0.5 | Zero free VOE |
| Response time |
tr |
µs |
3 |
6 |
10 | |
| Band width (-3dB) |
BW |
kHz |
30 |
- |
- |
|
| Current following |
di/dt |
A/us |
100 |
|||
| Output noise |
Vno pp |
mV |
- |
- |
10 | |
| Universal parameter | ||||||
| Operating ambient temperature |
TA |
℃ |
-40….+125 |
|||
| Storage ambient temperature |
TS |
℃ |
-40….+125 |
|||
| weight |
m |
g |
- |
|||
Attention
(1) The output voltage Uout, offset voltage UQOV, sensitivity Gth are completely proportional to the power supply Vc;
(2) The frequency of the current to be measured should be limited to the sensor frequency band, otherwise it will cause overheating of the magnetic core and chip;
(3) The wrong wiring method may damage the sensor;
Insulation characteristics
|
Parameter |
symbol |
unit |
Numerical value |
remark |
| Ac isolation withstand voltage test RMS @ 50Hz,1min |
UD |
KV |
2.5 |
|
| Impulse withstand voltage 1.2/50uS |
UW |
KV |
5 |
|
| Housing material |
- |
- |
UL94-V0 |
PPS+GF40 |
| Relative creepage resistance index |
CTI |
V |
- |
|
| Creepage distance |
dCP |
mm |
25 |
|
| Electrical clearance |
dCI |
mm |
20 |
Maximum limit
|
Parameter |
symbol |
unit |
Numerical value |
| Supply voltage |
VC |
V |
8 |
| Continuous output current |
Iout |
mA |
- |
| Electrostatic discharge - Contact discharge |
VESD |
KV |
4 |
Mechanical Dimensions
Attention
Sensors must comply with IEC61010-1 standards. Sensors must be installed in electronic or electrical equipment that meets application standards and safety requirements in accordance with the instructions for use.
- Watch out. Watch out for shocks.
When the sensor is operating, some parts may be subjected to dangerous voltages (e.g. primary busbar, power supply), and neglect of these will result in damage and serious hazards. The sensor is a built-in device, and its conductive part must be guaranteed not to be touched by the outside world after installation. Protective case or shielding cover can be added if necessary. The main power supply must be able to be disconnected.