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MAX1665X - Lithium-Ion Battery Pack Protector

Download the MAX1665X datasheet PDF. This datasheet also covers the MAX1665S variant, as both devices belong to the same lithium-ion battery pack protector family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1665 provides protection against overvoltage, undervoltage, overcharge current, and overdischarge current for 2-cell to 4-cell lithium-ion (Li+) battery packs.

Very low operating current ensures that cells are not overdischarged during long storage periods.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1665S_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX1665V Lithium-Ion Battery Pack Protector
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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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MAX1665S/V/X 19-1605; Rev 0; 1/00 Lithium-Ion Battery Pack Protector General Description The MAX1665 provides protection against overvoltage, undervoltage, overcharge current, and overdischarge current for 2-cell to 4-cell lithium-ion (Li+) battery packs. Very low operating current ensures that cells are not overdischarged during long storage periods. The MAX1665 controls two external N-channel MOSFETs to limit the charge and discharge voltages. Charging is allowed when the per-cell voltage is below +4.3V. When the voltage on any cell rises above +4.3V (overvoltage limit), the MAX1665 turns off the charge MOSFET. This safety feature prevents overcharge of any cell within the battery pack. Discharge is allowed when the per-cell voltage is above +2.5V (undervoltage limit).