Battery Safety Detecting Sensor

BMS pressure detecting sensor is based on MEMS and ASIC detecting technology, with CAN communication. It can be used to measure 50KPa to 260KPa absolute pressure with settable the warning threshold and detect the transient change of absolute pressure very well. It can provide advance detection for battery safety. This product brings the best combination of performance and reliability

Feature and benefits

High accuracy and low temperature drift

CAN communication, WAKE-UP output and REQUEST input for high reliability system integration

Settable warning threshold for absolute pressure detecting, match with different requirement

laser marking for better traceability

Different pressure ranges are available on customer request

Application

Battery systems for electric vehicles and energy storag

Operate
Basic principle

The sensor operates in ECO mode when the voltage signal on the request pin of the connector is low and the absolute pressure inside battery pack is below a set threshold. the sensor output pressure value periodically by the detecting cycle time in table. 1, the sensor disables CAN signal output in rest time.

Connection options

Customized to customer choice of connection system.

Packaging Options

Custom packaging can be provided to meet any need, please contact KESENS Engineering for details.

Functional Characteristics
Parameter
Min.
Typical
Max.
Uhit
Condition
Supply Voltage
6
12
18
V
 
Over Voltage
 
 
24
V
minutes@25℃
Reverse Voltage
 
 
-20
V
minutes@25℃
Input current
 
27
30
mA
Continuous mode
Continuous mode
 
120
150
uA
ECO mode
Sleep current
 
100
 
uA
Sleep mode
Operating temperature/humidity range
 
 
 
 
 
Ambient operating temperature
-40
 
105
 
Storage temperature
-40
 
105
Pressure detecting characteristic
 
 
 
 
 
Absolute pressure detecting range
50
 
260
KPa
 
Resolution
 
 
0.1
KPa
-40℃~ 105℃
Accuracy
 
 
±1.2
KPa
-0℃~ 85℃
Accuracy
 
 
±2.5
KPa
-40℃~ 105℃
ECO mode detecting cycle time
 
 
1
s
ECO mode
Response time
 
 
30
ms
Cycle time for reading pressure data in continuous mode