The LP28400A is a complete constant-current/constant voltage switching charger for multi cell lithium-ion batteries. Boost + Linear charger work witha USB 2.0 compliant power IC assuring 2 cell Li-on battery charging. When the battery voltage is low, the charger works in linear operation mode. Along with the charging the battery voltage is higher the charger will transfer to Boost operation mode smoothly.When the battery voltage <6V, switch to wake-up current charging.Other features include charge current monitor, undervoltage lockout, automatic recharge and a status pin to indicate charge termination.
应用
◆ 2 cell Li-Ion handheld devices ◆ POS device ◆ Bluetooth speaker ◆ USB powered devices
数据参数
数据参数
最大充电电流(mA)
1500
工作电压(V)
3.0~12
过压保护(V)
-
电池电压(V)
8.4/12.6
温度检测
Y
使能控制
-/Y
充电状态指示
Y
充满状态指示
-
电池节数
2,3
产品特征/功能
USB Boost charge 2/3cells
封装
ESOP-8/QFN-16(3*3)
特征
特征
◆ Adapter Adaptive ◆ Input voltage range 3V~12V ◆ Integrated low side power MOSFET ◆ Simple structure and perfect transition between Linear and Boost operation ◆ Programmable charge current and CV voltage ◆ Dynamic input current allocation for maximum charging rate ◆ Automatically switches to wake-up current when charging over-discharged batteries ◆ Over Current Protection ◆ Over Temperature Protection ◆ Consumption Available in ESOP8 & QFN16(3mm*3mm) Package ◆ RoHS Compliant and 100% Lead (Pb)-Free ◆ Programmable Charge Mode for 2cells,3cells or 4cells charging (QFN-16 package only)
