LP28300A
2A Synchronous Buck Li-ion Charger
概述
The LP4030H family is highly integrated switching charger for 1-4 cells of Li-Ion and Li-Polymer batteries.
The devices support 4.5V to 20V operation input voltage and charge current is up to 3A. The BAT pin withstands a voltage up to 28V, which is designed for protecting the devices from an over-shoot voltage in battery application systems.
The devices provide various safety features for battery charging, including battery under/over temperature protection, device junction over temperature and cycle-by-cycle inductor current limit protection. The input voltage regulation loop reduces charge current when the input source capacity is not enough to provide the programmed charge current. The STAT output indicates the charging status.
The LP4030H family is available in a DFN-10(3x3mm) package.
The devices support 4.5V to 20V operation input voltage and charge current is up to 3A. The BAT pin withstands a voltage up to 28V, which is designed for protecting the devices from an over-shoot voltage in battery application systems.
The devices provide various safety features for battery charging, including battery under/over temperature protection, device junction over temperature and cycle-by-cycle inductor current limit protection. The input voltage regulation loop reduces charge current when the input source capacity is not enough to provide the programmed charge current. The STAT output indicates the charging status.
The LP4030H family is available in a DFN-10(3x3mm) package.
应用
◆ Wireless Speaker
◆ Cordless Power Tools
◆ Gaming Devices
◆ Portable Media Players
◆ Handheld Battery-Powered Devices
◆ Charging Docks and Cradles
◆ Toys
◆ E-Cigarettes
◆ Cordless Power Tools
◆ Gaming Devices
◆ Portable Media Players
◆ Handheld Battery-Powered Devices
◆ Charging Docks and Cradles
◆ Toys
◆ E-Cigarettes
数据参数
数据参数
最大充电电流(mA)
3000
工作电压(V)
4.5~28
过压保护(V)
22
电池电压(V)
4.2/4.35/4.4
温度检测
Y
使能控制
-
充电状态指示
Y
充满状态指示
-
电池节数
1
产品特征/功能
3A Wide voltage Single cell Li-Ion Switch Charger
封装
DFN-10(3*3)
特征
特征
◆ Easy-to-use standalone 1-to-4 cell charger
◆ High input voltage switching charger
- Support 4.5V to 20V input voltage with 28V absolute maximum input rating
- 3.0A maximum fast charge current
- Trickle charge current: 10% of fast charge current
- Termination current: 10% of fast charge current
- Up to 92% efficiency
- Input dynamic power management for various input source capacity
◆ High integration
- Integrated reverse blocking and synchronous switching MOSFET
- Charge current sensing
- Internal loop compensation
- Internal bootstrap diode
- Charge operation indication driver
◆ Support full charge cycle of trickle charge, constant
current charge and constant voltage charge, charge termination and recharge
◆ Protections
- Input under-voltage lockout (UVLO)
- Over-voltage protection (OVP)
- Cold/hot battery temperature protection
◆ High input voltage switching charger
- Support 4.5V to 20V input voltage with 28V absolute maximum input rating
- 3.0A maximum fast charge current
- Trickle charge current: 10% of fast charge current
- Termination current: 10% of fast charge current
- Up to 92% efficiency
- Input dynamic power management for various input source capacity
◆ High integration
- Integrated reverse blocking and synchronous switching MOSFET
- Charge current sensing
- Internal loop compensation
- Internal bootstrap diode
- Charge operation indication driver
◆ Support full charge cycle of trickle charge, constant
current charge and constant voltage charge, charge termination and recharge
◆ Protections
- Input under-voltage lockout (UVLO)
- Over-voltage protection (OVP)
- Cold/hot battery temperature protection
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