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R5438L322BA Datasheet 1 to 3 Cells Li-Ion Battery Protection

Manufacturer: RICOH

Overview: R5438L Series 1 to 3 Cells Li-Ion Battery Protection IC for Secondary Protection No. EA-417-210518 OUTLINE The R5438L is an overcharge protection IC for 1 to 3 serial cells Li-ion / Li-polymer rechargeable battery. This device provides the high-accuracy voltage detection function and the shutdown function can reduce the supply current to the minimum when all cell’s voltage becomes less than the shutdown detection voltage.

Download the R5438L322BA datasheet PDF. This datasheet also includes the R5437 variant, as both parts are published together in a single manufacturer document.

Key Features

  • High Voltage Tolerant Process Absolute Maximum Ratings.
  • 26 V.
  • Low Supply Current During Operation, Cell-voltage: 3.9 V, 3-Cells.
  • Typ. 0.85 µA.
  • High-accuracy Voltage Detection Overcharge Detector Threshold (VDET1n(1)).