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HM5801

Part Number	HM5801
Manufacturer	H&M Semiconductor
Description	PMU
Published	Jun 24, 2019
Detailed Description	HM5801 PMU for Portable Applications GENERAL DESCRIPTION The HM5801 is a integrated power management unit for small han...
Datasheet	HM5801 PDF File

Overview

HM5801 PMU for Portable Applications GENERAL DESCRIPTION The HM5801 is a integrated power management unit for small handheld portable applications.
It contains a single-cell Lithium Ion battery charger, a synchronous step-down DC-DC converter and 2 Low Dropout Regulators.
It allows charging from both wall adapter and USB port.
When charging from wall adapter, the HM5801 increases the charging current automatically.
The battery charger is a highly integrated charging management device targeted at space limited portable applications.
It offers an integrated MOSFET and current sensor, reverse blocking protection, high accuracy current and voltage regulation, and charge termination.
It charges a battery in three phases: trickle charging, constant current, and constant voltage.
No external sense resistor is needed, and no blocking diode is required due to the internal MOSFET architecture.
The thermal feedback regulates the charging current to limit the chip temperature during high power op...

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