LTC1473 Dual PowerPathSwitch Driver
The LTC®1473 provides a power management solution for single and dual battery notebook computers and other portable equipment. The LTC1473 drives two sets of back-to-back N-channel MOSFET switches to route power to the input of the main system switching regulator. An internal boost regulator provides the voltage to fully enchance the logic level N-channel MOSFET switches. The LTC1473 senses current to limit surge currents both into and out of the batteries and the system supply capacitor during switch-over transitions or during fault conditions. A user-programmable timer monitors the time the MOSFET switches are in current limit and latches them off when programmed time is exceeded. A unique "2-diode mode" logic ensures system start-up regardless of which input receives power first
产品特点 Features
- Power Path Management for Systems with Multiple DC Sources
- All N-Channel Switching to Reduce Power Losses and System Cost
- Switches and Isolates Sources Up to 30V
- Adaptive High Voltage Step-Up Regulator for N-Channel Gate Drive
- Capacitor Inrush and Short-Circuit Current Limited
- User-Programmable Timer to Limit Switch Dissipation
- Small Footprint: 16-Pin Narrow SSOP
参数
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应用
- Notebook Computers
- Portable Instruments
- Handi-Terminals
- Portable Medical Equipment
- Portable Industrial Control Equipment
典型应用图
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LTC1473 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) * |
| LTC1473CGN |
SSOP |
16 |
C |
$4.40 |
$3.55 |
| LTC1473CGN#PBF |
SSOP |
16 |
C |
$4.40 |
$3.55 |
| LTC1473CGN#TR |
SSOP |
16 |
C |
|
$3.61 |
| LTC1473CGN#TRPBF |
SSOP |
16 |
C |
|
$3.61 |
| LTC1473IGN |
SSOP |
16 |
I |
$5.30 |
$4.30 |
| LTC1473IGN#PBF |
SSOP |
16 |
I |
$5.30 |
$4.30 |
| LTC1473IGN#TR |
SSOP |
16 |
I |
|
$4.36 |
| LTC1473IGN#TRPBF |
SSOP |
16 |
I |
|
$4.36 |
| LTC1473LCGN |
SSOP |
16 |
C |
$4.40 |
$3.55 |
| LTC1473LCGN#PBF |
SSOP |
16 |
C |
$4.40 |
$3.55 |
| LTC1473LCGN#TR |
SSOP |
16 |
C |
|
$3.61 |
| LTC1473LCGN#TRPBF |
SSOP |
16 |
C |
|
$3.61 |
LTC1473 数据手册及相关资料下载
- 数据手册(英文) : LTC1473 - Dual PowerPath Switch Driver.PDF
- 应用指南 (英文) : AN84 - linear Technology Magazine Circuit Collection, Volume IV .PDF
- 可靠性数据 : R336 Reliability Data .PDF
