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MAX77785 - 3.5A 1-Cell Li+ Battery Charger

Description

The MAX77785/MAX77786 is a high-performance highinput 3.5/5.5A fast charger with Smart Power SelectorTM.

Features

  • High-Efficiency Single-Cell Switching Charger.
  • Up to 5.5A Charging with MAX77786.
  • Up to 3.5A Charging with MAX77785.
  • 90% Buck Efficiency at 4A, 15V Input.
  • Up to 5.5A Input Current Limit with AICL (MAX77786).
  • Up to 3.5A Input Current Limit with AICL (MAX77785).
  • +26V Absolute Maximum Input Voltage Rating.
  • 4.7V to 18.2V Input Operating Voltage Range.
  • Reverse Boost with Programmable Output Voltage Options up to 10.805V.

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Full PDF Text Transcription

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MAX77785/MAX77786 18.2VIN, 3.5A/5.5A 1-Cell Li+ Battery Charger for USB Type-C Power Delivery General Description The MAX77785/MAX77786 is a high-performance highinput 3.5/5.5A fast charger with Smart Power SelectorTM. The ICs can operate as a reverse boost converter without an additional inductor, allowing the battery to share its power through the charging port, and offer programmable output voltage from 4.505V to 10.805V. The devices feature fully integrated low-loss power switches to provide a small solution size and high efficiency, even at high input voltage and high charging current. Its high switching frequency allows the use of a smaller-sized inductor. The ICs feature true load disconnection in reverse boost mode and have an adjustable output current protection limit.
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