MAX1507

Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 3mm x 3mm Thin DFN

Smallest Temperature-Regulated, Linear, 1-Cell Li+ Battery Chargers with 14V Input


Please check latest availability status for a specific part variant.

Description

The MAX1507 is an intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger for a single-cell lithium-ion (Li+) battery. The MAX1507 integrates the current-sense circuit, MOS pass element, and thermal-regulation circuitry, and also eliminates the reverse-blocking Schottky diode to create the simplest and smallest charging solution for hand-held equipment.

The MAX1507 functions as a stand-alone charger to control the charging sequence from the prequalification state through fast-charge, top-off charge, and full-charge indication.

Proprietary thermal-regulation circuitry limits the die temperature when fast charging or while exposed to high ambient temperatures, allowing maximum charging current without damaging the IC.

The MAX1507 achieves high flexibility by providing an adjustable fast-charge current and thermal regulation setpoints. Other features include the charging status (active-low CHG) of the battery and an active-low control input (active-low EN).

The MAX1507 accepts a +4.25V to +13V supply, but disables charging when the input voltage exceeds +7V to protect against unqualified or faulty AC adapters. The MAX1507 operates over the extended temperature range (-40°C to +85°C) and is available in a compact 8-pin thermally enhanced 3mm x 3mm Thin DFN package with 0.8mm height.
MAX1507: Typical Operating Circuit MAX1507: Typical Operating Circuit Enlarge+

Key Features

  • Stand-Alone Linear 1-Cell Li+ Battery Charger
  • No External FET, Reverse-Blocking Diode, or Current-Sense Resistor Required
  • Programmable Fast-Charge Current (0.8A max)
  • Proprietary Programmable Die-Temperature Regulation Control (+90°C, +100°C, and +130°C)
  • +4.25V to +13V Input Voltage Range with Input Overvoltage Protection (OVP) Above +7V
  • Charge-Current Monitor for Fuel Gauging
  • Low Dropout Voltage—130mV at 0.425A
  • Input Power-Source Detection Output (VL) and Charge-Enable Input (Active-Low EN)
  • Soft-Start Limits Inrush Current
  • Charge Status Output (Active-Low CHG) for LED or Microprocessor Interface
  • Small 3mm x 3mm 8-Pin Thin DFN Package, 0.8mm High

Applications/Uses

  • Bluetooth® Equipment
  • Cell Phones/Cordless Phones
  • Charging Cradles and Docks
  • Digital Cameras and MP3 Players
  • PDAs
  • USB Appliances
Part NumberLithium Ion CellsProtected VIN
(V)
Charging VIN
(V)
Charge Rate Set byMax. ICHG
(A)
Charge TerminationCharge RegulationOper. Temp.
(°C)
Package/PinsBudgetary
Price
maxmaxSee Notes
MAX1507 1137Resistor0.8External ControlLinear-40 to +85
TDFN/8
$2.01 @1k
See All Battery Chargers (74)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


MAX1507EVKIT: Evaluation Kit for the MAX1507, MAX1508
MAX1508EVKIT: Evaluation Kit for the MAX1507, MAX1508

Technical Documents

App Note 4840 Battery/Charger Load Switch Approximates Ideal Diode

Quality and Environmental Data

Request Reliability Report for: MAX1507 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX1507

CAD Symbols and Footprints

  • MAX15070AAUT+
  • MAX15070AAUT+T
  • MAX15070AAUT/V+
  • MAX15070AAUT/V+T
  • MAX15070AEUT+T
  • MAX15070BAUT+
  • MAX15070BAUT+T
  • MAX15070BEUT+T
  • MAX1507ETA+
  • MAX1507ETA+T
  • MAX1507ETA-T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

    Quality Management System >
    Environmental Management System >

     
    Status:
    Package:
    Temperature:

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