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6S80A Battery Management system ( BMS) with SMBus,I2C communication protocol for Li-ion and Li-Polymer Battery Packs

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SHENZHEN BEST ELECTRIC TECHNOLOGY CO., LTD.

6S80A Battery Management system ( BMS) with SMBus,I2C communication protocol for Li-ion and Li-Polymer Battery Packs

Country/Region	china
City & Province	shenzhen guangdong
Categories	Battery Packs

Product Details

Programmable BMS with SMBus , I2C, Communication protocol

1.Protection Circuit Board for 6S 22.2V Li-ion and Li-Polymer battery pack;

2.PCB applies for 6 configuration Li-ion and Li-Polymer battery pack;

3.To prevent the battery packs from overcharge,overdischarge,over current, over temperature ,short circuit ;

4.With cell balance/equilibrium function;

5.Compatible with all the Li-ion and Li-Polymer cells.

6.How balancing function works? after battery pack is fully charged. PCM will detect each cell's voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps cells have longer service life.

BMS mainly designed based on TI chips, TIBQ78350+BQ76940/BQ76930/BQ76940, and the mosfets for discharge and charge current we mainly use IRF4310/IRF3207/IRF1404 (Only for reference), the specified parameters as below (all the logical parameters are adjustable from software).

(Note: the pictures or parameters in this data sheet are only for your reference, those possibly could be different from the ones you will order. Due to the upgrading of the Hardware/Firmware/Software,Characteristics subject to change without notice, for more information, please contact our technical engineers by email:info@sunbest.net

Specifications

Item	Contents		Criteria (Adjustable from software/hardware)
1	Model	BEST-####	5S-15S Adjustable from software and hardware
2	Voltage	Charging voltage	Adjustable from software
3	Current	Maximal continuous charging current	80A (adjustable from hardware)
		Maximal continuous discharging current	80A (adjustable from hardware)
		Current consumption	≤200μA
4	Overcharge Protection	Over charge detection voltage	Adjustable from software
		Over charge detection delay time	Adjustable from software
		Over charge release voltage	Adjustable from software
5	Over Discharge Protection	Over discharge detection voltage	Adjustable from software
		Over discharge detection delay time	Adjustable from software
		Over discharge release voltage	Adjustable from software
6	Over Current Protection	Over current detection voltage	Adjustable from software
		Over current detection current	Adjustable from software and hardware
		Detection delay time	Adjustable from software
		Release condition	Adjustable from software
7	Short Circuit Protection	Detection condition	Adjustable from software
		Detection delay time	Adjustable from software
		Release condition	Cut load, automatically recover
8	Balance On @ ≥50mV±5mV OFF @ ≤30mV±5mV	Balance voltage for single cell	Adjustable from software
8	Balance On @ ≥50mV±5mV OFF @ ≤30mV±5mV	Balance current for single cell	Adjustable from hardware
9	Resistance	Inner resistance	≤20mΩ
10	Temperature	Single cell temperature when discharge (over temp. protection) ≥65℃	Adjustable from software
		Single cell temperature when discharge (low temp. protection) <-40℃	Adjustable from software
		Single cell temperature when Charge (over temp. protection) ≥50℃	Adjustable from software
		Single cell temperature when Charge (low temp. protection) <0℃	Adjustable from software
11	Fuel/Gas gauge	Display with LEDs (optional)	Thru one button to check capacity