牌子：SHOUDING 首鼎   型号： SDW18B  锂电池充电保护IC     封装：SOT23-5                              FEATURES
· No External MOSFETs Required
· Integrate MOSFET with Equivalent of
50mOHM Rdson
· Only one external capacitor required
· Over temperature protection
· Three-step Over discharge current
detection:OC1,OC2 and short circuiting
· Charger detection Function
· Overcharge current detection
· Delay times are generated internally
· Low Current Consumption:
-operation mode: 2uA typ.
-Power down mode : 0.1uA max
· High accuracy voltage detection
· RoHS Compliant and Lead (Pb) Free
· Tiny SOT23-5 Package
   GENERAL DESCRIPTION
 The SDW18B is a battery protection solution
IC which is integrated with built-in the
protection IC to use a Lithium-ion/Polymer
batteries developed for one cell series. The
device contains all required protection
control circuits together with
very-low-resistance MOSFETs to minimize
the number of external components. The
protection IC is composed of three voltage
detectors, over current, short detection
circuit, reference voltage sources, oscillator,
counter circuit and logical circuits.
The device is not only targeted for digital
cellular phones, but also for any other
Li-ion/pol battery powered information
appliances requiring long term battery life.

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