MAX1772EEI+T by Maxim Integrated | Battery Management | Avnet AMERICAS
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MAX1772EEI+T

Maxim Integrated

Battery Charger Lead-Acid/Li-Ion/Li-Pol/NiCD/NiMH 4000mA 0V to 18.2V 28-Pin QSOP T/R

Manufacturer Part #: MAX1772EEI+T

Alternate Part #: MAX1772EEI+T


legend RoHS Compliant legend NCNR

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Information

The MAX1772 is a highly-integrated, multichemistry battery-charger control IC that simplifies the construction of accurate and efficient chargers. The MAX1772 uses analog inputs to control charge current and voltage and can be programmed by the host or hardwired. High efficiency is achieved by a buck topology with synchronous rectification. Maximum current drawn from the AC adapter is programmable to avoid overloading the AC adapter when supplying the load and the battery charger simultaneously. This enables the user to reduce the cost of the AC adapter. The MAX1772 provides outputs that can be used to monitor the current drawn from the AC adapter, battery-charging current, and the presence of an AC adapter. The MAX1772 can charge two to four lithium-ion (Li+) series cells, easily providing 4A. When charging, the MAX1772 automatically transitions from regulating current to regulating voltage. It is available in a space-saving 28-pin QSOP package.

Key Features

  • Input Current Limiting
  • ±0.5% Output Voltage Accuracy Using InternalReference (0°C to +85°C)
  • Programmable Battery Charge Current >4A
  • Analog Inputs Control Charge Current andCharge Voltage
  • Monitor Outputs for:
    • Current Drawn from AC Input Source
    • Charging Current
    • AC Adapter Present
  • Up to 18.2V (max) Battery Voltage
  • 8V to 28V Input Voltage
  • >95% Efficiency
  • 99.99% (max) Duty Cycle for Low-DropoutOperation
  • Charges Any Battery Chemistry: Li+, NiCd, NiMH,Lead Acid, etc.

Technical Attributes

Description
Value
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Operating Temperature
-40 to 85 °C
Lead Finish
Matte Tin
Max Processing Temp
260|300
Output Current
4000 mA
Mounting
Surface Mount
Screening Level
Extended
Battery Type
Lead-Acid|Li-Ion|Li-Pol|NiCD|NiMH
Output Voltage
0 to 18.2 V
Type
Battery Charger

ECCN / UNSPSC

Description
Value
ECCN:
EAR99
SCHEDULE B:
8542390000
HTSN:
8542390001
UNSPSC:
32101600
UNSPSC VERSION:
V15.1101

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USD    $6.79
  • Lead time: 6 weeks
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