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ISL9209B - Charging System Safety Circuit

Key Features

  • Fully Integrated Protection Circuit for Three Protected Variables.
  • High Accuracy Protection Thresholds.
  • User Programmable Overcurrent Protection Threshold.
  • Input Overvoltage Protection in Less than 1s.
  • High Immunity of False Triggering Under Transients.
  • Warning Output to Indicate the Occurrence of Faults.
  • Enable Input.
  • Easy to Use.
  • Thermal Enhanced TDFN Package.
  • Pb-Free Plus Anneal Available (RoHS Complia.

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Datasheet Details

Part number ISL9209B
Manufacturer Renesas
File Size 771.06 KB
Description Charging System Safety Circuit
Datasheet download datasheet ISL9209B 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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DATASHEET ISL9209B Charging System Safety Circuit The ISL9209B is an integrated circuit (IC) optimized to provide a redundant safety protection to a Li-ion battery from failures of a charging system. The IC monitors the input voltage, the battery voltage and the charge current. When any of the three parameters exceeds its limit, the IC turns off an internal P-Channel MOSFET to remove the power from the charging system. In addition to the above protected parameters, the IC also monitors its own internal temperature and turns off the P-Channel MOSFET when the temperature exceeds +140°C. Together with the battery charger IC and the protection module in a battery pack, the charging system using the ISL9209B has triple-level protection and is two-fault tolerant.