KIT34671EPEVBE, Evaluation Kit - 34671, Single-cell Li-Ion/Li-Poly Charger

Beschreibung

• Evaluation Kit features the MC34671, which is 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 (CC) 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 (EOC) 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