MAX17005BEVKIT

Evaluation Kit for the MAX17005B


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Description

The MAX17005B evaluation kit (EV kit) is a complete and fully assembled and tested surface-mount PCB that features the MAX17005B highly integrated, multichemistry battery charger control IC. The MAX17005B EV kit utilizes two single-package n-channel MOSFETs for high-side and low-side switching for the MAX17005B internal synchronous step-down converter, and two n-channel MOSFETs and one p-channel MOSFET for the main power-source selection.

The MAX17005B EV kit is capable of supplying power to a system load while simultaneously charging 3- or 4-cell Li+ battery packs. During normal operation, the EV kit circuit automatically selects the ADAPTER input or the battery as the main power source for supplying power to the system load. If the ADAPTER input is selected as the main source and the EV kit's input-current limit is exceeded, the charge current is reduced automatically to give priority to the system load.

The EV kit's input-source-current limit is set to 4A while the maximum battery-charge voltage and charge-current thresholds can be configured up to 17.4V and 3.5A, respectively. The thresholds can be adjusted by using on-board circuitry or by connecting analog signals to the respective test points on the EV kit. A digital output signal (active-low ACOK) indicates the presence of a valid AC adapter voltage at the ADAPTER input source. The MAX17005B EV kit PCB is rated for 0°C to +70°C; however, the MAX17005B IC is rated for -40°C to +85°C.

Key Features

  • Analog/PWM Input Charge-Current Setting
  • Up to 1.2MHz Switching Frequency
  • Programmable Charge Current Up to 3.5A
  • Monitors Input/Outputs
    • Analog Input Charge-Current-Setting Voltage
    • AC Adapter Input Current
    • AC Adapter Presence
  • Automatic System Power-Source Selection
  • Up to 17.4V (max) Battery Voltage
  • 10V to 25V Adapter-Input Operation
  • Demonstrates the MAX17005B IC Internal Boost Diode
  • Cycle-by-Cycle Current Limit
  • Multichemistry Battery Charger
  • Fully Assembled and Tested

Applications/Uses

  • Notebook Computers
  • Portable Equipment with Rechargeable Batteries
  • Tablet PCs
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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