主要参数：过充4.275V/4.425V可选，过放3.0V（±100mV），充电过流3.3A，放电过流3.3A,持续放电电流2A，针对标准电芯以及4.35V高压电芯,TSOT23-4封装。
GENERAL DESCRIPTION
The XB4734K2S product is a high integr
ation solution for lithium-ion/polymer batter
y protection. XB4734K2S contains advanc
ed power MOSFET, high-accuracy voltage
detection circuits and delay circuits. XB473
4K2S is put into an ultra-small TSOT23-4L
package with simple components makes it
an ideal solution in limited space of battery
pack.
XB4734K2S has all the protection functio
ns required in the battery application includ
ing overcharging, over-discharging, overcu
rrent and load short circuiting protection et
c. The accurate overcharging detection volt
age ensures safe and full utilization chargin
g. The low standby current drains little curr
ent from the cell while in storage.
The device is not only targeted for digital
cellular phones, but also for any other Li-Io
n and Li-Poly battery-powered information
appliances requiring long-term battery life.
FEATURES
Protection of Charger Reverse
Connection
Protection of Battery Cell Reverse
Connection without external load
Integrate Advanced Power MOSFET
with Equivalent of 50mΩ RSS(ON)
Ultra-small TSOT23-4L package
Only One external Capacitor Required
Over-temperature Protection
Overcharge Current Protection
Two-step Overcurrent Detection:
-Over-discharge Current
-Load Short Circuiting
Charger Detection Function
0V Battery Charging Function
Delay Times are generated inside
High-accuracy Voltage Detection
Discharge Over-current Self-recovery
Low Current Consumption
-Operation Mode: 1.5μA typ.
-Power-down Mode:100nA max.
RoHS Compliant and Lead (Pb) Free
ESD HBM:4KV
APPLICATIONS
One-Cell Lithium-ion Battery Pack
Lithium-Polymer Battery Pack
