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MAX1645A - Level 2 Battery Chargers

Download the MAX1645A datasheet PDF. This datasheet also covers the MAX1645 variant, as both devices belong to the same level 2 battery chargers family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX1645 are high-efficiency battery chargers capable of charging batteries of any chemistry type.

It uses the Intel System Management Bus (SMBus) to control voltage and current charge outputs.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX1645_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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
19-1566; Rev 2; 1/01 MAX1645/MAX1645A Advanced Chemistry-Independent, Level 2 Battery Chargers with Input Current Limiting General Description The MAX1645 are high-efficiency battery chargers capable of charging batteries of any chemistry type. It uses the Intel System Management Bus (SMBus) to control voltage and current charge outputs. When charging lithium-ion (Li+) batteries, the MAX1645 automatically transition from regulating current to regulating voltage. The MAX1645 can also limit line input current so as not to exceed a predetermined current drawn from the DC source. A 175s charge safety timer prevents “runaway charging” should the MAX1645 stop receiving charging voltage/ current commands.