LTC4099
I2C Controlled USB Power Manager/ Charger with Overvoltage Protection
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New Content (1)
Overview
Features and Benefits
- 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
Product Details
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
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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R540 Reliability Data3/26/2018
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DC1396A - Demo Manual9/24/2009
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I2C Battery Gas Gauges11/17/2011
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Industrial Battery Chargers Overview10/17/2023
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Battery Conditioner Extends the Life of Li-Ion Batteries12/1/2009 LT Journal
Product Recommendations
LTC4099 Companion Parts
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTC4099EUDC#PBF | Material Declaration | Reliability Data | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) | |
| LTC4099EUDC#TRPBF | Material Declaration | Reliability Data | 20-Lead QFN (3mm x 4mm x 0.75mm w/ EP) | |
| Wafer Fabrication Data | R540 Reliability Data |
Support & Discussions
Sample & Buy
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Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.