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MAX1645A Dataheets PDF



Part Number MAX1645A
Manufacturers Maxim Integrated
Logo Maxim Integrated
Description Level 2 Battery Chargers
Datasheet MAX1645A DatasheetMAX1645A Datasheet (PDF)

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 li.

  MAX1645A   MAX1645A


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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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