Battery Charger Lead-Acid/Li-Ion/Li-Pol/NiCD/NiMH 4000mA 0V to 18.2V 28-Pin QSOP T/R, MAX1772EEI+T, Maxim Integrated

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.

  • 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.
  • Характеристики

    Battery_type

    Lead-Acid, Li-Ion, Li-Pol, NiCD, NiMH

    Output_current

    4 A

    Specifications

    https://4donline.ihs.com/images/VipMasterIC/IC/MAXM/MAXMS09274/MAXMS09274-1.pdf?hkey=52A5661711E402568146F3353EA87419

    Screening_level

    Extended

    Schedule_b

    8542390000

    Product_dimensions

    9.98 x 3.99 x 1.55 mm

    Pin_count

    28

    Output_voltage

    0 to 18.2 V

    Supplier_package

    QSOP

    Бренд

    Operating_temperature

    -40 to 85 °C

    Msl_level

    1

    Mounting

    Surface Mount

    Max_processing_temp

    260, 300

    Lead_finish

    Matte Tin

    Kind

    Battery Charger

    Htsn

    8542390001

    Eccn

    EAR99

    Артикул: MAX1772EEI+T

    Описание

    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.

    • 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.
  • Детали

    Battery_type

    Lead-Acid, Li-Ion, Li-Pol, NiCD, NiMH

    Output_current

    4 A

    Specifications

    https://4donline.ihs.com/images/VipMasterIC/IC/MAXM/MAXMS09274/MAXMS09274-1.pdf?hkey=52A5661711E402568146F3353EA87419

    Screening_level

    Extended

    Schedule_b

    8542390000

    Product_dimensions

    9.98 x 3.99 x 1.55 mm

    Pin_count

    28

    Output_voltage

    0 to 18.2 V

    Supplier_package

    QSOP

    Бренд

    Operating_temperature

    -40 to 85 °C

    Msl_level

    1

    Mounting

    Surface Mount

    Max_processing_temp

    260, 300

    Lead_finish

    Matte Tin

    Kind

    Battery Charger

    Htsn

    8542390001

    Eccn

    EAR99