LP4030 3A High Efficiency Switching Charger

2022-06-10
The LP4030 device is a highly-integrated switching charger for single cell Li-Ion and Li-Polymer battery. The device includes dual integrated N-channel power MOSFETs and a constant-frequency synchronous PWM controller.
The device supports charge current up to 3A and can withstand an input voltage up to 28V. The device is disabled while the input voltage exceeds the input over-voltage-protection threshold. The BAT pin can withstand a voltage up to 24V, which is designed for protecting the device from an over-shoot voltage in battery application systems.
The device provides various safety features for battery charging, including battery under/over temperature protection by an NTC monitoring circuit, device junction over temperature protection and cycle-by-cycle inductor current-limit protection. There is an input voltage regulation loop for dynamic power management by reducing the charge current when the input source current capacity is lower than the programmed charge current. The STAT output indicates the charging status. The LP4030 is available in a DFN-10(3x3mm) package.
Features:
●0.5% Charge Voltage Accuracy
●3A Maximum Charge Current
●Up to 92%Efficiency
●Dynamic Power Management for Different InputSourceCapacity Application
●No External MOSFETs and Reverse-BlockingDiode Required
●TrickleCurrent/ConstantCurrent/ConstantVoltage ModeSupported
●ChargeTermination and Automatic Recharge
●Maximum Input Voltage up to 28V with 7V Input-Over-Voltage Protection
●Battery Under/Over Temperature Protection
●JunctionOver TemperatureProtection
●Cycle-by-Cycle Current-LimitProtection
●ESD Protection
●Package: 3x3mmDFN-10

LPSemi

LP4030-LP4030LP4030QVFLP4030QVF-435LP4030QVF-44

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switching charger

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Datasheet

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Please see the document for details

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DFN-10

English Chinese Chinese and English Japanese

Mar.-2022

Rev0.3

1.2 MB

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