ltc4000 lifepo4 battery charger circuit design

Using the LTC4000 high voltage controller designed by Linear Technology, can be designed a very simple high current LiFePO4 battery charger that will provide a fixed output voltage of 12 volts at a maximum output current of 15 A. Features of the LTC4000`s high current LiFePO4 battery charger include: accurate ( ±0. 25%) programmable float voltage

, selectable timer or current termination, temperature qualified charging using an NTC thermistor, automatic recharge, C/10 trickle charge for deeply discharged cells, bad battery detection and status indicator outputs. This battery charging and power management system also includes precision current sensing that allows lower sense voltages for high current. This power supply circuit is very simple requiring few external electronic parts and is designed for charging three cell LiFePO4 battery pack, providing a maximum charge current of 10 ampere.

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