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Evaluation Module, Power Management, Battery Charger, BQ24040


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Manufacturer Part No:
Newark Part No.:
Technical Datasheet:
KIT34673EPEVBE   Datasheet
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Product Overview

The KIT34673EPEVBE is an evaluation module for MC34673, a cost effective fully integrated battery charger for Li-Ion or Li-polymer batteries. It tolerates an input voltage up to 28V, which eliminates the input over voltage protection circuit required in handheld devices. A charge cycle includes trickle, constant current and constant voltage charge modes. The constant current mode current is programmable up to 1.2A with an external resistor. The constant voltage is fixed at 4.2V. The trickle mode current is preset to 20% of the constant current mode current when the battery voltage is lower than the trickle mode threshold. The end of charge current threshold is preset to 10% of the constant current mode current to save the board space and cost. A charge current thermal foldback limits the charge current when the IC internal temperature rises to a preset threshold. The MC34673 has a 2.6V falling power on reset threshold making it perfect to work with current limited power supplies.
  • No external MOSFET, reverse-blocking diode or current sense resistor are required
  • Guaranteed maximum 1.2A programmable constant current mode current
  • ±0.7% voltage accuracy over -20°C to 70°C
  • ±6% current accuracy over -40°C to 85°C
  • 28V maximum voltage for the power input with 6.8V over voltage protection threshold
  • 2.6V minimum input operating voltage
  • Trickle charge for fully discharged batteries
  • Charge current monitor
  • Charge current thermal foldback


Consumer Electronics, Portable Devices


Assembled and tested evaluation board/module in anti-static bag.

Product Information

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Power Management - Battery

Battery Charger



Evaluation Board, Software


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Technical Documents (1)

CAD Downloads


Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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