LTC1479 - PowerPath Controller for Dual Battery Systems
Features
- Complete Power Path Management for Two Batteries, DC Power Source, Charger and Backup
- Compatible with Li-Ion, NiCd, NiMH and Lead-Acid Battery Chemistries
- All N-Channel Switching Reduces Power Losses
- Capacitor and Battery Inrush Current Limited
- Independent Charging and Monitoring of Two Battery Packs
- New, Small Footprint, 36-Lead SSOP Package
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC®1479 is the “heart” of a total power management solution for single and dual battery notebook computers and other portable equipment. The LTC1479 directs power from up to two battery packs and a DC power source to the input of the main system switching regulator. It works in concert with related LTC power management products (e.g. LTC1435, LT®1511, etc.) to create a total system solution; starting from the batteries and the DC power source, and ending at the input of each of the computer’s complex loads. A system-provided power management µP monitors and actively directs the LTC1479. The LTC1479 uses low loss N-channel MOSFET switches to direct power from three main sources. An adaptive current limiting scheme reduces capacitor and battery inrush current by controlling the gates of the MOSFET switches during transitions. The LTC1479 interfaces directly to the LT1510, LT1511 and LT1620/LTC1435 battery charging circuits.Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC1479CG#PBF | SSOP-36 | G | C | 05-08-1640 (G36) | Yes |
| LTC1479CG#TRPBF | SSOP-36 | G | C | 05-08-1640 (G36) | Yes |
| LTC1479IG#PBF | SSOP-36 | G | I | 05-08-1640 (G36) | Yes |
| LTC1479IG#TRPBF | SSOP-36 | G | I | 05-08-1640 (G36) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1479CG#PBF | SSOP-36 | C | $8.00 | $7.05 | Yes | |
| LTC1479CG#TRPBF | SSOP-36 | C | $7.15 | Yes | ||
| LTC1479IG#PBF | SSOP-36 | I | $9.20 | $8.15 | Yes | |
| LTC1479IG#TRPBF | SSOP-36 | I | $8.25 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1479IG#PBF | SSOP-36 | I | $9.20 | $8.15 | Yes | |
| LTC1479IG#TRPBF | SSOP-36 | I | $8.25 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- Notebook Computer Power Management
- Portable Instruments
- Handheld Terminals
- Portable Medical Equipment
- Portable Industrial Control Equipment
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
