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LTC4079 Datasheet 250ma Linear Charger

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC4079 60V, 250mA Linear Charger with Low Quiescent Current.

General Description

The LTC®4079 is a low quiescent current, high voltage linear charger for most battery chemistry types including Li-Ion/Polymer, 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.

Key Features

  • n Wide Input Voltage Range: 2.7V to 60V n Adjustable Battery Voltage: 1.2V to 60V n Adjustable Charge Current: 10mA to 250mA n Low Quiescent Current While Charging: IIN = 4µA n Ultralow Battery Drain When Shutdown or Charged: IBAT < 0.01µA n Auto Recharge n Input Voltage Regulation for High Impedance Sources n Thermal Regulation Maximizes Output Current without Overheating n Constant Voltage Feedback with ±0.5% Accuracy n NTC Thermistor Input for Temperature Qualified Charging n Adj.

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