BQ24725EVM-542 - 

Evaluation Board, Power Management, Battery Charger


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Product Information

Evaluation Board BQ24725
Battery Charger
Texas Instruments
Power Management - Battery
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Product Overview

The bq24725EVM evaluation module (also referred to as HPA-542) is a complete charger module for evaluating a multicell synchronous notebook charge using the bq24725 devices. It is designed to deliver up to 4A of charge current to lithium ion or lithium polymer applications. The bq24725 is a high efficiency, synchronous battery charger, offering low component count for space constraint, multi chemistry battery charging applications. The bq24725 has a highly integrated battery charge controller designed to work with external host commands. The bq24725 uses two charge pumps to separately drive n-channel MOSFETs (ACFET, RBFET and BATFET) for automatic system power source selection. The charge voltage, charge current, input current, and flexible charge option are programmable with a SMBus interface. The bq24725 does not include the EV2300 interface board. To evaluate the bq24725, the EV2300 interface board must be ordered separately.
  • High efficiency NMOS-NMOS synchronous buck charger with 750kHz frequency
  • High efficiency and low cost NMOS power path selector and integrated gate driver
  • User selectable 2 cell, 3 cell, or 4 cell lithium ion battery voltage
  • Programmable battery voltage, charge current, and ac adapter current via SMBus interface
  • Flexible charge option() register control via SMBus interface
  • AC adapter operating range 9V to 24V
  • Test points for key signals available for testing, easy probe hook-up
  • Jumpers available. Easy to change connections


Portable Devices, Industrial, Medical, Test & Measurement


These devices have limited built in ESD protection. The leads should be shorted together or device placed in conductive foam during storage or handling to prevent electrostatic damage to MOS gates.

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