Evaluation System for the MAX8971

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The MAX8971 evaluation kit (EV kit) demonstrates the MAX8971 IC, a 1.55A capable, 1-cell lithium-ion (Li+) DC-DC battery charger with I2C capability. The EV kit charges a single-cell Li+ battery from a DC input (AC adapter) or a USB 100mA/500mA source and provides system power from the DC input, USB input, or battery. Battery-charge current and input-current limits are independently set. Charge current and input-current limit can be set up to 1500mA. USB suspend mode is also supported.

The EV kit comes standard with the MAX8971EWP+ installed. The included MINIQUSB interface board can be used to enable PC communication through the USB interface board. Windows® 2000-, Windows XP®-, Windows Vista®-, and Windows 7-compatible software along with an extender board allows an IBM-compatible PC with an available USB port to emulate an I2C 2-wire interface. This program is menu-driven and offers a graphical user interface (GUI) with control buttons.

Key Features

  • DC-DC Converter Input-Current Limit
    • 100mA to 1500mA Adjustment Range (EV Kit Standard Configuration: 500mA)
  • 250mA to 1550mA Battery-Charge Current-Limit Adjustment Range (EV Kit Standard Configuration: 500mA)
  • 50mA to 200mA Done Threshold-Adjustment Range
  • Battery-Regulation Voltage-Adjustment Range: 4.1V, 4.15V, 4.2V, 4.35V
  • Fast-Charge and Top-Off Timer-Adjustment Range
  • Efficient 4MHz Switching Li+ Battery Charger
  • I²C Serial Interface with IRQB Indicator
  • Selectable Charge Sources Connector
    • 2.1mm Barrel or Micro-USB
  • Proven PCB Layout
  • Fully Assembled and Tested


  • Digital Cameras
  • GPS, PDAs
  • Headsets and Media Players
  • Smartphones
  • USB Charging
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

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.

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