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bq25040 - Single Cell Li-Ion Battery Charger

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General Description

The bq25040 is an integrated Li-ion linear battery charger targeted at space-limited portable applications.

It operates from either a USB port or AC adapter and charges a single cell Li-Ion battery with up to 1.1A of charge current.

The bq25040 has a single power output that charges the battery.

Overview

bq25040 www.ti.com ......................................................................................................................................................

SLUS910B – MARCH 2009 – REVISED MARCH 2009 1.1A, Single-Input, Single Cell Li-Ion Battery Charger With 50mA LDO and 2.

Key Features

  • 1.
  • 30V Input Rating, with Overvoltage Protection (OVP).
  • Input Voltage Dynamic Power Management Feature.
  • 50mA Integrated Low Dropout Linear Regulator (LDO).
  • 1% Charge Voltage Regulation Accuracy.
  • 10% Charge Current Accuracy.
  • Single-Input Interface Selects USB 100mA, 500mA or User-Programmable Maximum Input Current Limit.
  • 4.2V at 2.3A Production Test Mode.
  • Thermal Regulation and Thermal Shutdown Protection for Output Current C.

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