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ETA9897 - Ultra-Low Power PMU

General Description

ETA9897 is an ultra-low power PMU with 2 modules: a 30V single cell Li+ battery linear charger and a 5V boost synchronous converter with true-shutoff function.

Key Features

  • Ultra low IQ when No switching: 1.2uA.
  • 30V input standoff voltage.
  • 4.2V charge termination voltage.
  • Charge current programmable, up to 1.2A.
  • Output Disconnect and SCP at 5V output.
  • 5V/0.4A Output Power.
  • Up to 94% Efficiency for boost converter.
  • Operation over JEITA Range via Battery NTC.
  • Logic Control Shutdown and Thermal shutdown.
  • ESOP8 Package.
  • RoHS Compliant.

📥 Download Datasheet

Datasheet Details

Part number ETA9897
Manufacturer ETA
File Size 545.07 KB
Description Ultra-Low Power PMU
Datasheet download datasheet ETA9897 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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ETA9897 Ultra-Low Power PMU with 30V Linear Charger and 5V Boost Converter DESCRIPTION ETA9897 is an ultra-low power PMU with 2 modules: a 30V single cell Li+ battery linear charger and a 5V boost synchronous converter with true-shutoff function. The linear charger fully integrated constant current (CC) / constant voltage (CV) control module and charge FET, with minimal external devices. It also has pre-charge function for trickle charging deeply discharged battery and its fast charge current can be programmed by an external resistor. When CV charge stage is entered, charge will be terminated once the charge current drops to 1/10 of the programmed value. A “STAT” pin is also available to indicate the charge status. And the low power 5V boost converter is capable of delivering 0.