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Battery Management Systm (BMS) with Smbus Communication protocol for 3 cells in series Li-ion/Li-Polymer/LiFePO4 Battery Packs with Smbus

Part number: BD-0056-3S-V1

Features and Benefits

1.BMS for  3S 9.6V/11.1V LiFePO4/Li-ion battery pack;

2.BMS applies for 3 cells LiFePO4/Li-ion battery pack.

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

4.Without cell balance/equilibrium function;

5.Compatible with LiFePO4/Li-ion cells; 

6.BMS with Smbus communication

7.BMS comes with all the voltage detection wires and connectors.

Specifications

 

Item

Contents

Criteria(Adjustable)

1

Model

BD-0056-3S-V1

3S-4.5A working current

2

Voltage

Charging voltage

10.8V

3

Current

Maximal continuous charging current

4.5A

Maximal continuous discharging current

4.5A

Current consumption

40μA

4

Overcharge Protection

Over charge detection voltage

?V±0.03V

Over charge detection delay time

1~3S

Over charge release voltage

?V±0.05V

5

Over Discharge Protection

Over discharge detection voltage

?V±0.05V

Over discharge detection delay time

1~3S

Over discharge release voltage

?V±0.1V

6

Discharge

Over Current Protection

(1st Protection)

Over current detection current

20A±2A

Detection delay time

1~4S

Release condition

Cut load,automatically recover

7

Discharge

Over Current Protection

(2nd Protection)

Over current detection current

23A±2A

Detection delay time

1~4S

Release condition

Cut load,automatically recover

8

Charge

Over Current Protection

Over current detection current

10A±3A

Detection delay time

1~4S

Release condition (delay: 500ms)

automatically recover

8

Short Circuit Protection

Detection condition

Exterior shot circuit

Detection delay time

100~1000uS

Release condition

Cut load,automatically recover

9

Balance

Balance voltage for single cell

?±0.015V

Balance current for single cell

?mA±25mA

10

Temperature Protection

Charge Over Temp Protection

40℃±4

Discharge Over Temp Protection

70℃±4

Charge Under Temp Protection

0℃±4

discharge Under Temp Protection

-20℃±3

11

Resistance

Inner resistance

30

12

Temperature

Operating temperature range

0 ~ +70°C

Storage temperature range

0 ~ +70°C

13

Size  (L*W*T)

L137mm*W49mm*T4mm

  EEROM

Power management IC

BQ4050

Communication protocol

SMBUS

IC software version

0001

Nominal capacity of cell

? mAh

Battery pack configuration

3S

Voltage standard

3200mV±5mV

Current standard

5000mA±10mA

temperature standard

Current temperature ±3°C

 

 

Power consumption

model

Minimum value

Typical value

maximum value

unit

Operating mode

100

200

450

uA

sleep mode

20

130

220

uA

 

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