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PT1502 - PMU

General Description

The PT1502 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.

Key Features

  • Integrated switch for USB/AC Adapter supply 120uA quiescent supply current(includes step-down DC-DC converters and two low dropout regulators) Integrated single-cell lithium ion battery charger.
  • Auto thermal regulated.
  • Charging current up to 1.2 A.
  • Charging current adjusted by external resistor Integrated step-down DC-DC converter.
  • Output voltage adjusted by external resistor.
  • Output current up to 800mA.
  • 1.5M Hz fixed switching frequency.
  • Over-curre.

📥 Download Datasheet

Datasheet Details

Part number PT1502
Manufacturer PowTech
File Size 2.34 MB
Description PMU
Datasheet download datasheet PT1502 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PT1502 PMU for Portable Applications GENERAL DESCRIPTION The PT1502 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 PT1502 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.