Features and Benefits

  • 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

Product Details

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.


  • Digital Cameras
  • GPS, PDAs
  • Headsets and Media Players
  • Smartphones
  • USB Charging

Applicable Parts

Tools & Simulations

Software Development


Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.