Protection Circuit Module For 1S Li-ion/Li-Po/LiFePO4 Battery Packs

Over charge Protection
Over discharge protection
Over current protection
Short protection
Protection Circuit Module Specifications For 3.2V LiFePO4 Battery Packs
No.
Test item
Criterion
1
Voltage
Charging voltage
DC: 3.6V CC/CV
Balance voltage for single cell

2
Current
Balance current for single cell

Current consumption for single cell
≤10μA
Maximal continuous charging current
2.5A
Maximal continuous discharging current
2.5A
3
Over charge Protection
Over charge detection voltage
3.90±0.025V
Over charge detection delay time
0.96S—1.4S
Over charge release voltage
3.80±0.025V
4
Over discharge protection
Over discharge detection voltage
2.0±0.05V
Over discharge detection delay time
115—173mS
Over discharge release voltage
2.3±0.05V
5
Over current protection
Over current detection voltage
0.1V±0.015V
Over current detection current
3±0.5A
Detection delay time
7.2ms—11ms
Release condition
Cut load
6
Short protection
Detection condition
Exterior short circuit
Detection delay time
200-500us
Release condition
Cut load
7
Resistance
Protection circuitry(B- TO P-)
≤50mΩ
Protection Circuit Module Specifications For 3.7V Li-ion/Li-Po Battery Pack
No.
Test item
Criterion
1
Voltage
Charging voltage
DC: 4.2V CC/CV
Balance voltage for single cell

2
Current
Balance current for single cell

Current consumption for single cell
≤10μA
Maximal continuous charging current
2.5A
Maximal continuous discharging current
2.5A
3
Over charge Protection
Over charge detection voltage
4.25±0.025V
Over charge detection delay time
0.7S—1.3S
Over charge release voltage
4.05±0.05V
4
Over discharge protection
Over discharge detection voltage
2.50±0.062V
Over discharge detection delay time
14—26mS
Over discharge release voltage
3.0±0.075V
5
Over current protection
Over current detection voltage
0.2V±0.015V
Over current detection current
5.5±1A
Detection delay time
8ms—16ms
Release condition
Cut load
6
Short protection
Detection condition
Exterior short circuit
Detection delay time
200-500us
Release condition
Cut load
7
Resistance
Protection circuitry(B- TO P-)
≤50mΩ