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LTC3559 Datasheet Linear USB Battery Charger

Manufacturer: Linear Technology (now Analog Devices)

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General Description

The LTC®3559/LTC3559-1 are USB battery chargers with dual high efficiency buck regulators.

The parts are ideally suited to power single-cell Li-Ion/Polymer based handheld applications needing multiple supply rails.

Battery charge current is programmed via the PROG pin and the HPWR pin, with capability up to 950mA at the BAT pin.

Key Features

  • Battery Charger n Standalone USB Charger n Up to 950mA Charge Current Programmable via Single Resistor n HPWR Input Selects 20% or 100% of Programmed Charge Current n NTC Input for Temperature Qualified Charging n Internal Timer Termination n Bad Battery Detection n CHRG Indicates C/10 or Timeout Buck Regulators n 400mA Output Current n 2.25MHz Constant Frequency Operation n Zero Current in Shutdown n Low Noise Pulse Skip Operation or Power Saving Burst Mode Operation n Low No-Load Quiescent Curr.

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More Datasheets from Linear Technology (now Analog Devices)

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