电池保护
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电池保护
JW3318-XXX
JW3318 is a battery protection IC for the 3~5 cells rechargeable lithium-ion battery pack. By using cascade connection, it is also possible to protect 6 or more cells battery pack.
JW3318 integrates high-accuracy voltage detection circuits, which realizes multiple protection functions including over-charge, over-discharge, over-current, over-temperature and VC5~VC0 pins open-wire.
FEATURES
Wide range of operation voltage 5V to 35V
Monitor 3~5 series battery pack
High-accuracy voltage detection for each cell
- Over-charge detection voltage VOC:
3.6~4.5V (50mV step) ±25mV
- Over-charge release hysteresis VOCRH:
0V/0.1V/0.2V/0.35V
- Over-discharge detection voltage VOD:
2.1~3.1V (100mV step) ±50mV
- Over-discharge release hysteresis VODRH:
0V/0.1~0.6V (100mV step)
Discharge over-current detection in 3-step
-1st detection voltage VDOI1:
0.050~0.25V (50mV step) ±10mV
-2nd detection voltage VDOI2:
0.1~0.5V (100mV step) ±20mV
Short circuit detection voltage VSHT:
0.1~1.0V (100mV step) ±60mV
Charge over-current detection voltage VCOI:
- -0.015~-0.155V (10mV step) ±10mV
Fixed internally:
Load short circuit detection delay time tSHT: 300µs
Charge over-current detection delay time tCOI: 1s
Programmable by external capacitor
- Discharge over-current detection delay time tDOI:
1st: 0.1s~2s 2nd: (0.1~2s)×0.1
- Over-discharge detection delay time tOD:0.1s~3s
- Over-charge detection delay time tOC:0.1s~5s
Balance function:
Level-1 bleeding threshold voltage VBAL1:
VOC-225mV~VOC-25mV (25mV step) ±25mV
Level-2 bleeding threshold voltage VBAL2:
VOC/VOC-25mV/VOC-50mV ±25mV
High-accuracy battery temperature detection
Provide passive balance
Provide VC5~VC0 open-wire detection
Charging Permission (CP) condition check
Wide range of operation temperature -40°C to +85°C
Low current consumption (T=25°C)
Full power mode 15μA Typ.
Sleep mode 3μA Typ.
Shutdown mode 350nA Typ.
20-Pin TSSOP
APPLICATIONS
Rechargeable lithium-ion battery pack
Power tool
UPS backup battery
需要样品测试或详细资料请联系：18126521362（点击复制微信号）
