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MAX1645A

Maxim Integrated
Part Number MAX1645A
Manufacturer Maxim Integrated
Description Level 2 Battery Chargers
Published Dec 8, 2017
Detailed Description 19-1566; Rev 2; 1/01 MAX1645/MAX1645A Advanced Chemistry-Independent, Level 2 Battery Chargers with Input Current Limi...
Datasheet PDF File MAX1645A PDF File

MAX1645A
MAX1645A

Overview
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.
The MAX1645 employs a next-generation synchronous buck control circuity that lowers the minimum input-tooutput voltage drop by allowing the duty cycle to exceed 99%.
The MAX1645 can easily charge one to four series Li+ cells.
Applications Notebook Computers Point-of-Sale Terminals ...


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