Battery Protection IC

Description

l The SL435 battery protection IC is designed to protect lithium-ion/polymer battery from damage or degrading the lifetime due to overcharge, overdischarge, and/or overcurrent for one-cell lithium-ion/polymer battery powered systems, such as cellular phones. The ultra-small package and less required external components make it ideal to integrate the SL435 into the limited space of battery pack. The accurate ±25mV overcharging detection voltage ensures safe and full utilization charging. The very low standby current drains little current from the cell while in storage.

Features

l Reduction in Board Size due to Miniature Package SOT-23-6.

l Ultra-Low Quiescent Current at 3μA  (Vcc=3.9V).

l Two Detection Levels for Overcurrent

l Protection.

l Auto recovery

l 0v charging

l Precision Overcharge Protection Voltage 4.425V ± 25mV for the SL435

l Load Detection Function during Overcharge Mode.

l Delay times are generated by internal circuits. No external capacitors required.

Applications

l Protection IC for One-Cell Lithium-Ion / Lithium-Polymer Battery Pack：

          built-in cell of mobile phone

          digital product cell

          camera cell

          portable power

l Reflow soldering internal actual temperature < 250 degrees,time in high temperature < 7 s.

Ordering Information

       SL435

l Package type: SOT-23-6

l Temperature range: -40°C~+85℃

l Overcharge protection: 4.4-4.425V,4.425-4.45V