深圳市科瑞芯电子有限公司

LPSemi/微源半导体 LP4030HC DFN-10 3A高效开关充电器

General Description

The LP4030HC device is a highly-integrated switchingcharger for single cell Li-Ion and Li-Polymer battery. Thedevice includes dual integrated N-channel powerMOSFETs and a constant-frequency synchronous PWMcontroller.The device supports charge current up to 3A and canwithstand an input voltage up to 28V. The device isdisabled while the input voltage exceeds the inputover-voltage-protection threshold. The BAT pin canwithstand a voltage up to 24V, which is designed forprotecting the device from an over-shoot voltage inbattery application systems.The device provides various safety features for batterycharging, including battery under/over temperatureprotection by an NTC monitoring circuit, device junctionover temperature protection and cycle-by-cycle inductorcurrent-limit protection. There is an input voltageregulation loop for dynamic power management byreducing the charge current when the input sourcecurrent capacity is lower than the programmed chargecurrent. The STAT output indicates the charging status.The LP4030 is available in a DFN-10 (3x3mm) package.

Features

◆ 3A Maximum Charge Current

◆ Up to 92% Efficiency

◆ Dynamic Power Management for Different InputSource Capacity Application

◆ No External MOSFETs and Reverse-BlockingDiode Required

◆ Trickle Current/Constant Current/Constant Voltage Mode Supported

◆ Charge Termination and Automatic Recharge

◆ Maximum Input Voltage up to 28V with 7V Input-Over-Voltage Protection

◆ Battery Under/Over Temperature Protection

◆ Junction Over Temperature Protection

◆ Cycle-by-Cycle Current-Limit Protection

◆ ESD Protection

◆ Package: 3x3mm DFN-10

LP4030HC Applications

◆ Portable Media Players

◆ Cellular and Smart Mobile Phone

◆ Handheld Battery-Powered Devices

◆ Charging Docks and Cradles

LP4030HC产品规格书（部分）