
E-CMOS Corporation
General Description
The EC49020 is a 4.5-20V input, 2A single-cell synchronous Li-Ion battery switching charger, suitable for portable application. The EC49020 integrates a synchronous PWM controller, 20V rating power MOSFETs, current sense resistor, high-accuracy current and voltage regulation, and charge termination, into a compact 8-pin SOP(Expose PAD) package.
FEATUREs
✦ 1.5MHz Synchronous Switching Charger with Integrated Power FETs
✦ Up to 93% Efficiency
✦ 20V Input Rating with 6.7V OVP
✦ Programmable (2A Max) Charge Current
✦ Built-in Charge Current Soft Start
✦ Built-in Reverse Current Blocking Diode
✦ Built-in Charge Current Sense Resistor
✦ Output Short Circuit Protection
✦ Over Temperature Protection
✦ Available in a SOP8(Expose PAD) Package
APPLICATIONs
✦ Tablet PC, Ebook and Netbook
✦ Handheld Portable Media Products
✦ Power Bank