LTC4099

PRODUCTION

I2C Controlled USB Power Manager/ Charger with Overvoltage Protection

Data Sheet Product Selection Table
Viewing:

Overview

  • Switching Regulator with Bat-Track™ Adaptive Output Control Makes Optimal Use of Limited Input Power
  • I2C Port for Optimal System Performance and Status Information
  • Input Overvoltage Protection
  • Bat-Track Control of External Step-Down Switching Regulator Maximizes Efficiency from Automotive and Other High Voltage Sources
  • Instant-On Operation with Low Battery
  • Optional Overtemperature Battery Conditioner Improves High Temperature Battery Safety Margin
  • Ideal Diode Seamlessly Connects Battery When Input Power is Limited or Unavailable
  • Full-Featured Li-Ion/Polymer Battery Charger
  • 1.5A Maximum Charge Current with Thermal Limiting
  • Slew Control Reduces Switching EMI
  • 20-Lead 3mm × 4mm × 0.75mm QFN Package

The LTC4099 is an I2C controlled high efficiency USB PowerPath™ controller and full-featured Li-Ion/Polymer battery charger. It seamlessly manages power distribution from multiple sources including USB, a wall adapter and a Li-Ion/Polymer battery.

The LTC4099 automatically limits its input current for USB compatibility. For automotive and other high voltage applications, the LTC4099 interfaces with an external switching regulator. Both the USB input and the auxiliary input controller feature Bat-Track optimized charging to provide maximum power to the application and reduced heat in high power density applications.

The I2C port allows digital control of important application parameters including input current limit, charge current and float voltage. Several status bits can also be read back via I2C.

An overvoltage protection circuit guards the LTC4099from high voltage damage on the low voltage VBUS pin.TheLTC4099 is available in a 20-Lead 3mm × 4mm × 0.75mmQFN Package.

Applications

  • Media Players
  • Portable Navigation Devices
  • Smart Phones
  • Industrial Handhelds
  • Portable Medical Instruments
LTC4099
I2C Controlled USB Power Manager/ Charger with Overvoltage Protection
I 2C Controlled High Efficiency Battery Charger/ USB Power Manager Reduced Power Dissipation vs Linear Battery Charger Product Package 1
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Design Note 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Hardware Ecosystem

Parts Product Life Cycle Description
Battery Charger ICs 1
LTC4155
RECOMMENDED FOR NEW DESIGNS Dual Input Power Manager/ 3.5A Li-Ion Battery Charger with I2C Control and USB OTG
Battery Monitors & Fuel Gauges 1
LTC2942
NOT RECOMMENDED FOR NEW DESIGNS Battery Gas Gauge with Temperature, Voltage Measurement
Interface Transceivers & Isolators 1
LTM2884
PRODUCTION Isolated USB Transceiver with Isolated Power
Protection Switches & Controllers 1
LTC2955
RECOMMENDED FOR NEW DESIGNS Pushbutton On/Off Controller with Automatic Turn-On
Modal heading
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project

Evaluation Kits

eval board
schematic 1
DC1396A

LTC4099EPDC Demo Board | I2C-Controlled USB Power Manager/Charger with Overvoltage Protection (requires DC590)

Buy Now View Details

Product Details

Demonstration Circuit 1396A is an I2C-controlled, high-efficiency USB/5V Powered 1A Li-Ion battery charger/manager with the control hooks for an external HV battery-tracking step-down controller (LT3480 is recommended). The Input current is automatically limited for USB compatibility.  The DC1396's input voltage ranges from 4.35V to 5.5V, and the device provides overvoltage protection from up to 30V. The device features a CC/CV linear charger with a 4.2V charge voltage, C/x detection and timer termination.


 


 
DC1396A
LTC4099EPDC Demo Board | I2C-Controlled USB Power Manager/Charger with Overvoltage Protection (requires DC590)
DC1396A - Schematic

Latest Discussions

No discussions on LTC4099 yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed