LTC4079EDD#TRPBF

LTC®4079 is a low quiescent current, high voltage linear charger for most battery chemistry types including Li-Ion/ Polymer, LiFePO4, lead-Acid or NiMH battery stacks up to 60V. The maximum charge current is adjustable from 10mA to 250mA with an external resistor. The battery charge voltage is set using an external resistor divider. With an integrated power device, current sensing, and reverse current protection, a complete charging solution sing requires very few external components. Thermal regulation ensures maximum charge current up to the specified limit without the risk of overheating. Applications includes embedded automotive and industrial, backup battery charging from another battery, energy harvesting charger, thin film battery products.

• Input voltage regulation for high impedance sources
• Thermal regulation maximizes output current without overheating
• Constant voltage feedback with ±0.5% accuracy
• NTC thermistor input for temperature qualified charging
• Adjustable safety timer, charging status indication
• Operating supply voltage range from 2.7 to 60V (TA = 25°C, VIN = 12V)
• Typical battery drain current is 0.01µA (charging terminated (VFB =1.210V), TA = 25°C)
• Typical charging termination threshold is 25mA (RPROG = 1.2K, TA = 25°C)
• 10-lead plastic DFN package
• Temperature rating range from -40°C to 125°C

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party