Principle
The CHB_CAB series current sensors are suitable for EV battery monitoring applications, providing high accuracy and extremely low zero error. When measuring, the primary side (high voltage) and secondary side fully insulated (12V system)
* Closed- loop
* Supply voltage: DC +12 V
* Capable measurement of currents: DC, AC,pulse with galvanic isolation between primary circuit and secondary circuit.
Advantages
* Easy installation
* Can be customized
* No insertion losses
* Low power consumption
* Wide current measuring range
* High immunity to external interference
Applications
* Inverter applications
* AC/DC variable-speed drive
* Uninterruptible Power Supplies (UPS)
* Switched Mode Power Supplies (SMPS)
* Frequency drive control home appliances
Specification
| Electrical data: |
| PARAMETERS |
SYMBOL |
UNIT |
VALUE |
CONDITIONS |
| MIN. |
TYP. |
MAX. |
| Over voltage |
UC |
V |
|
32 |
|
400 ms |
| Over voltage |
UC |
V |
|
24 |
|
10 minutes |
| Over voltage |
UC |
V |
|
20 |
|
Continuity |
| Reverse voltage |
UC |
V |
|
-50 |
|
10 minutes |
| Minimum power supply voltage |
UC |
V |
|
6 |
|
Continuity |
| Maximum power supply voltage |
UC |
V |
|
18 |
|
Continuity |
| Insulation resistance |
RIS |
MΩ |
|
500 |
|
500 V - ISO 16750-2 |
| Creepage distance |
dCp |
mm |
|
7.5 |
|
|
| Electrical clearance |
dCI |
mm |
|
7 |
|
|
| Insulation AC test voltage |
|
KV |
|
5 |
|
50Hz,1min |
| Insulation DC test voltage |
|
KV |
|
5 |
|
1min |
| Working performance parameters: |
| Electrical data: |
| PARAMETERS |
SYMBOL |
UNIT |
VALUE |
CONDITIONS |
| MIN. |
TYP. |
MAX. |
| Measuring current range DC |
IPN |
A |
-500 |
|
500 |
|
| supply voltage |
UC |
V |
7 |
12 |
18 |
|
| Current consumption |
IC |
mA |
- |
21 |
30 |
@IP=0 |
| Current consumption |
IC |
mA |
- |
|
250 |
@IP=500A |
| Working temperature |
TA |
ºC |
-40 |
|
85 |
|
| Performance parameter: |
| Maximum voltage hysteresis |
UUP |
V |
|
18.1 |
|
When UC rises |
| V |
|
17.7 |
|
When UC drops |
| Minimum voltage hysteresis |
ULOW |
V |
|
7.1 |
|
When UC rises |
| V |
|
6.8 |
|
When UC drops |
| Total accuracy |
XG |
% |
-0.3 |
|
0.3 |
|
| Linearity error |
εL |
% |
-0.1 |
|
0.1 |
|
| Zero point error |
IOS |
A |
-0.1 |
|
0.1 |
T=-40 to 85ºC; ±3sigma |
| Gain temperature coefficient |
TCG |
ppm/°C |
|
10 |
|
T=-40 to 85ºC; ±3sigma |
CAN bus electrical parameters
CAN bus baud rate: 500kbps
CAN bus protocol: 2.0A/B
CAN oscillation error: 0.3125%
Byte order: big endian (Motorola)
| Message Description |
CAN ID |
Data length |
Message Launch type |
Signal description |
Signal name |
Start bit |
Length |
| |
|
|
|
IP value: |
IP_VALUE |
24 |
32 |
| |
|
|
|
80000000 h=0mA |
|
|
|
| |
|
|
|
7FFFFFFFh=-1mA |
|
|
|
| |
|
|
|
80000001h=1mA |
|
|
|
| Primiary current IP (mA) |
0x3C2 |
8
bytes |
Cyclic transmitted message 10ms cycle |
Error information |
ERROR_INFORMATION |
32 |
7 |
Error indication(1bit)
0=normal, |
ERROR_INDICATION |
39 |
1 |
| |
|
|
|
1=failure |
|
|
|
| |
|
|
|
Fixture to 0 |
VACANT_DATA_2BYTES |
48 |
16 |
| |
|
|
|
CRC-8 |
CRC_8 |
56 |
8 |
| |
|
|
|
POLY:8+X2+X+1 |
|
|
|
Fault diagnosis code (fault information)
| Failure mode |
IP value |
Error indication |
Error information |
| Flash CRC error |
FFFF FFFF h |
1 |
0x48 |
| AFE over range happens |
FFFF FFFF h |
1 |
0x49 |
| AFE error happens |
FFFF FFFF h |
1 |
0x50 |
| Internal LUT error |
FFFF FFFF h |
1 |
0x51 |
| Power Minimum Limit |
FFFF FFFF h |
1 |
0x54 |
| Power Maximum Limit |
FFFF FFFF h |
1 |
0x55 |
| General data: |
| Parameter |
Value |
| Operating temperature TA(°C) |
-40 ~ +85 |
| Storage temperature TS(°C ) |
-55~ +125 |
| Mass M(g ) |
65 |
| Plastic material |
PA66+GF30 |
| Standards |
ISO16750 |
| GB/T28046 |
| IEC60068 |
| Dimensions (Undeclared tolerance ± 0.5mm): |
|
| Connect |
Bill of Materials |
|
Plastic shell: PA66+GF30 |
| Magnetic core: thin film alloy winding |
| Connector terminal: Tinned brass |
| Weighing: About 65g |
| Mounting recommendation |
Connector model TYCO: 1473672-1
Recommended maximum torque M6=3Nm |
Company Profile
Packaging & Shipping
Package
All our sensors will be well packed with bubble & carton. (Bubble packing→4 small carton→1 big carton)
You can choose your own label(Screen Print or Laser Engraving).
Can be netural packing or OEM.
Shipping
Products are shipped via UPS / DHL/ FedEx / TNT, etc. (door to door), or air & sea shipment for larger qty.
L/T: 3-7 days upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
Shipping via DHL. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.
FAQ
Q1:Can I get sample from you?
A:Yes,we can provide the free samples for your testing,please contact us for free and tell us which product you need.
Q2:Do you accept customization?
A:Yes,customization is acceptable,please contact our sales staffs for consult.
Q3:Can you provide help for technical issues?
A:Yes,we have more than 10 years of research and development in the electronic industry. If you need technical help in the purchase process, please feel free to contact us.
Q4 : Can I get a lower price if I order large quantities?
A : Yes,it's negotiable.
Q5: How about the quality guarantee period ?
A : Our warranty period is one year since from shipping date.
Q6: Can I add or delete items from my order if I change mind?
A : Yes, but you need to tell us asap, if your order has been done in our production line, we cannot change it.
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