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ISL9211B - Charging System Safety Circuit

Description

The input power source.

24V input.

System ground reference.

Features

  • 24V Max Input Voltage.
  • Supports Up To 2.0A Input Current.
  • Fully Integrated Protection Circuit for Three Protected Variables.
  • High Accuracy Protection Thresholds.
  • User Programmable Overcurrent Protection Threshold.
  • Responds to Input Overvoltage in Less Than 1µs.
  • High Immunity of False Triggering Under Transients.
  • Fault Indication for Various Fault Occurrence.
  • Easy to Use.
  • Pb-Free (RoHS Compliant) Applicatio.

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Datasheet preview – ISL9211B

Datasheet Details

Part number ISL9211B
Manufacturer Renesas
File Size 585.89 KB
Description Charging System Safety Circuit
Datasheet download datasheet ISL9211B Datasheet
Additional preview pages of the ISL9211B datasheet.

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Full PDF Text Transcription

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ISL9211B Charging System Safety Circuit The ISL9211B is an integrated circuit (IC) optimized to provide a redundant safety protection to a Li-ion battery charging system. The IC monitors input voltage, battery voltage, and charge current. When any of these parameters exceeds its limit, the IC turns off an internal N-channel MOSFET to remove power from the charging system to the battery. The IC also monitors its own internal temperature and turns off the N-channel MOSFET when the temperature exceeds +150°C. Together with the battery charger IC and the protection module in a battery pack, the charging system using the ISL9211B has triple-level protection and is two-fault tolerant. The IC is designed to turn on the internal NFET slowly, to avoid in-rush current at power-up.
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