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LP3921 Datasheet Battery Charger Management/regulator

Manufacturer: Texas Instruments

Overview: LP3921 .ti. SNVS580A – AUGUST 2008 – REVISED MAY 2013 LP3921 Battery Charger Management and Regulator Unit with Integrated Boomer™ Audio Amplifier Check for Samples:.

General Description

The LP3921 is a fully integrated charger and multiregulator unit with a fully differential Boomer audio power amplifier designed for CDMA cellular phones.

The LP3921 has a high-speed serial interface which allows for the integration and control of a Li-Ion battery charger, 7 low-noise low-dropout (LDO) voltage regulators and a Boomer audio amplifier.

The Li-Ion charger integrates a power FET, reverse current blocking diode, sense resistor with current monitor output, and requires only a few external ponents.

Key Features

  • 1.
  • 23 Charger.
  • DC Adapter or USB Input.
  • Thermally Regulated Charge Current.
  • Under Voltage Lockout.
  • 50 to 950 mA Programmable Charge Current.
  • 3.0V to 5.5V Input Voltage Range.
  • Thermal Shutdown.
  • I2C-Compatible Interface for Controlling Charger, LDO Outputs and Enabling Audio Output.
  • LDO's 7 Low-Noise LDO’s.
  • 2 x 300 mA.
  • 3 x 150 mA.
  • 2 x 80 mA 2% (typ. ) Output Voltage Accuracy on LDO's.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
National Semiconductor Logo LP3921 Battery Charger Management/Regulator National Semiconductor

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