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KIT34674EPEVBE
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Evaluation Kit - MC34674, High-Input-Voltage Travel Charger for 1-Cell Li-Ion/Li-Polymer Batteries.
- KIT34674EPEVBE Hardware
- Quick Reference Guide
The Evaluation Kit features the MC34674, which is a fully integrated single-cell Li-Ion and Li-Polymer battery charger optimized for travel charger applications. The few external components required include a dual-color LED for charge-status indication, a negative-temperature-coefficient (NTC) thermistor circuit for setting the charge temperature window, and two decoupling capacitors.
The MC34674 tolerates an input voltage up to 28 V, which allows low-cost ac/dc converters to be used for further system-cost reduction. A charge cycle of the MC34674 includes trickle, constant-current (CC) and constant-voltage (CV) charge modes. The CC-mode current is selectable from 50 mA to 1.05 A, with 10% accuracy and the constant-output voltage in the CV-mode is fixed at 4.2 V.
The MC34674 has many features such as trickle charging for a deeply-discharged battery, an internal timer for termination to prevent charging a failed battery, charger current thermal foldback for thermal protection, and smart battery-connection verification to prevent charging in case there is no battery connected. It has a 2.6 V falling power-on-reset (POR) threshold, making it great to work with current-limited power supplies. When the charger is disabled, the BAT pin leaks less than 1 µA current from the battery.
Evaluation Kit - MC34674, High-Input-Voltage Travel Charger for 1-Cell Li-Ion/Li-Polymer Batteries.
Distributor | Region | Inventory | Inventory Date | Order |
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Upon selection of a preferred distributor, you will be directed to their web site to place and service your order. Please be aware that distributors are independent businesses and set their own prices, terms and conditions of sale. NXP makes no representations or warranties, express or implied, about distributors, or the prices, terms and conditions of sale agreed upon by you and any distributor.
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