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Evaluation Board, MC34671 Single Cell Battery Charger, Li-Ion, Li-Po, 600mA

KIT34671EPEVBE - Evaluation Board, MC34671 Single Cell Battery Charger, Li-Ion, Li-Po, 600mA

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KIT34671EPEVBE   Datasheet
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Product Overview

The KIT34671EPEVBE is an evaluation module for MC34671, 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 (CC) and constant voltage (CV) charge modes. The constant current is programmable up to 600mA, with an external resistor. The constant voltage is fixed at 4.2V. The trickle charge current is preset to 20% of the CC current when the battery voltage is lower than the trickle charge threshold. The end of charge current threshold is preset to 10% of the CC current to save board space and cost. A charge current thermal foldback feature limits the charge current when the IC internal temperature rises to a preset threshold. The MC34671 has a 2.6V falling power on reset (POR) 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 600mA programmable charge current
  • ±0.7% voltage accuracy over -20°C to 70°C
  • ±5% current accuracy over -40°C to 85°C
  • 28V maximum voltage for the power input with 11V 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

Product Information

Power Management - Battery
Li-Ion / Polymer Battery Charger
Eval Board MC34671
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