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SGM4064 - Over-Voltage Protection & Li+ Charger Front-End Protection

General Description

The SGM4064 is a charger front-end integrated circuit designed to provide protection to Li-Ion batteries from failures of the charging circuitry.

The IC continuously monitors the input voltage and the battery voltage.

Key Features

  • Input Over-Voltage Protection.
  • Accurate Battery Over-Voltage Protection.
  • Soft-Start to Prevent Inrush Currents.
  • Soft-Stop to Prevent Voltage Spikes.
  • 18V Maximum Input Voltage.
  • Supports up to 1.5A Load Current.
  • Thermal Shutdown.
  • Enable Function.
  • Fault Status Indication.
  • Available in Green TDFN-2×2-8L Package.

📥 Download Datasheet

Datasheet Details

Part number SGM4064
Manufacturer SG Micro
File Size 730.64 KB
Description Over-Voltage Protection & Li+ Charger Front-End Protection
Datasheet download datasheet SGM4064 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
SGM4064 Over-Voltage Protection IC and Li+ Charger Front-End Protection IC with LDO Mode GENERAL DESCRIPTION The SGM4064 is a charger front-end integrated circuit designed to provide protection to Li-Ion batteries from failures of the charging circuitry. The IC continuously monitors the input voltage and the battery voltage. The device operates like a linear regulator, maintaining a 5.1V output with input voltages up to the input over-voltage threshold (VOVP = 6.8V). During input over-voltage conditions, the IC immediately turns off the internal pass FET disconnecting the charging circuitry from the damaging input source. Additionally, if the battery voltage rises to unsafe levels while charging, power is removed from the system.