ETA40561 Datasheet | ETA

DESCRIPTION ETA40561 is a single cell, fully integrated constant current (CC)/constant voltage (CV) Li-ion battery charger. Its pact package with minimum external ponents requirement makes the ETA40561 ideal for portable applications. No external sense resistor or blocking diode is necessary for the ETA40561. Build-in thermal feedback mechanism regulates the charge current to control the die temperature during high power operation or at elevated ambient temperature. The ETA40561 has the function of pre-charge, which can charge the deeply discharged batteries by trickle. The fast charge current can be programmed by an external resistor. CV regulation mode is automatically enabled once the battery’s charging curve reaches the constant voltage portion. The output current then decays and is finally terminated once the charge current drops to 1/10 of the programmed value. The ETA40561 keeps monitoring the battery voltage and enables a new charge cycle once the voltage drops by 120m V below the CV value. ETA40561 is available in an ESOP8 package. FEATURES - 16V Input Standoff Voltage - 4.2V Charge Termination Voltage - 2.93V Trickle Charge Threshold - Charge Current Programmable, Up to 1.2A - 250n A BAT Current when No Charging - Soft-start Limits in-rush Current - ESOP8 Package APPLICATIONS - E-cigarette - Toys - Bluetooth applications - Li-ion battery powered devices TYPICAL APPLICATION 1K 4.7u F 4 VIN BAT 5 7 STAT ETA40561 NTC 1 6 STDBY 8 EN ISET 2 GND R1 RNTC Li+ Battery RISET VBAT/VSYS 10u F ORDERING INFORMATION PART No. ETA40561E8A PACKAGE ESOP8 TOP MARK ETA40561 YWW2L Pcs/Reel 4000 .etasolution....