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ETA9741 - 2.4A Boost and Fuel Gauge

Description

ETA9741 is a switching Li-Ion battery charger capable of delivering 2A of charging current to the battery and also capable of delivering up to 5V/2.4A in boost operation, with high efficiency in both charging mode and boost mode.

It also includes a fuel gauge system for power indication.

Features

  • Bi-Directional Power conversion with Single Inductor.
  • Automatic Mode Switching.
  • Switching Charger.
  • 5V Synchronous Boost.
  • Up to 96% Efficiency.
  • 2A charging current and 2.4A discharging.
  • No-Battery detection.
  • No External Sense resistor.
  • 4 LEDs Fuel gauge.
  • Button Controlled.

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Datasheet Details

Part number ETA9741
Manufacturer ETA
File Size 707.27 KB
Description 2.4A Boost and Fuel Gauge
Datasheet download datasheet ETA9741 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.

View original datasheet text
ETA9741 2A Switching Charger, 2.4A Boost and Fuel Gauge with Single Inductor DESCRIPTION ETA9741 is a switching Li-Ion battery charger capable of delivering 2A of charging current to the battery and also capable of delivering up to 5V/2.4A in boost operation, with high efficiency in both charging mode and boost mode. It also includes a fuel gauge system for power indication. For charging, it uses a proprietary control scheme that eliminates the current sense resistor for conventional constant current control, maximizing efficiency, reducing charging time and reducing costs. It can also output a 5V voltage in the reversed direction by boosting from the battery. It only needs a single inductor to provide power bidirectionally with a proprietary automatic mode detect and switch scheme.
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