LTC1479 PowerPath Controller for Dual Battery Systems
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
产品特点 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
参数
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应用
- Notebook Computer Power Management
- Portable Instruments
- Handheld Terminals
- Portable Medical Equipment
- Portable Industrial Control Equipment
典型应用图
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LTC1479 订购信息和价格参考Package Variations and Pricing
| 器件型号 |
封装 |
引脚 |
温度 |
价格 (以 1 ~ 99 片为批量) |
价格 (以 1000 片为批量) * |
| LTC1479CG |
SSOP |
36 |
C |
$8.00 |
$7.05 |
| LTC1479CG#PBF |
SSOP |
36 |
C |
$8.00 |
$7.05 |
| LTC1479CG#TR |
SSOP |
36 |
C |
|
$7.15 |
| LTC1479CG#TRPBF |
SSOP |
36 |
C |
|
$7.15 |
| LTC1479IG |
SSOP |
36 |
I |
$9.20 |
$8.15 |
| LTC1479IG#PBF |
SSOP |
36 |
I |
$9.20 |
$8.15 |
| LTC1479IG#TR |
SSOP |
36 |
I |
|
$8.25 |
| LTC1479IG#TRPBF |
SSOP |
36 |
I |
|
$8.25 |
LTC1479 数据手册及相关资料下载
- 数据手册(英文) : LTC1479 - PowerPath Controller for Dual Battery Systems.PDF
- 设计要点 (英文) : DN117 - 70mOhm Protected Load Management Switch.PDF
- 设计要点 (英文) : DN121 - New Micropower, Low Dropout Regulators Ease Battery Supply Designs.PDF
- 设计要点 (英文) : DN154 - Short-Circuit Protection for Boost Regulators.PDF
- 可靠性数据 : R336 Reliability Data .PDF
