LTC4099
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LTC4099

I2C Controlled USB Power Manager/ Charger with Overvoltage Protection

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Part Models 2
1ku List Price Starting From $2.66
Features
  • 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
Additional Details
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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
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Part Models 2
1ku List Price Starting From $2.66
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LTC4099

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Data Sheet

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UPDATED 03/03/2010
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LTC4099: I2C Controlled USB Power Manager/Charger with Overvoltage Protection Data Sheet

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UPDATED 05/20/2010
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LTC4099: 過電圧保護付きI2C制御のUSBパワーマネージャ/チャージャ データシート

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Reliability Data

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UPDATED 03/26/2018
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R540 Reliability Data redirect icon

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User Guide

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UPDATED 09/24/2009
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DC1396A - Demo Manual redirect icon

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Design Note

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UPDATED 03/01/2009
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Design Note 1017: LTC4099 Provides Unprecedented Control of USB Power Management and Battery Charger Functions Using I2C redirect icon

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Documentation

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LTC4099EUDC#PBF 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
LTC4099EUDC#TRPBF 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) external-link
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  • Material Declaration external-link
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  • Reliablity Data external-link
Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 1

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DC1396A

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

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DC1396A

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

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

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.


 


 


Resources

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DC1396A - Schematic Download

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DC1396A - Design File Download

696.00K

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DC1396A - Demo Manual Download

480.00K

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Evaluation Kits1

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DC1396A

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

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