- 您现在的位置：买卖IC网 > PDF目录1833 > LTC4011CFE#TRPBF (Linear Technology)IC BATT CHARGER HIEFF 20TSSOP PDF资料下载
参数资料
| 型号： | LTC4011CFE#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 22/26页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER HIEFF 20TSSOP |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 镍镉（NiCd）、镍金属氢化物（NiMH） |
| 电源电压： | 4.5 V ~ 34 V |
| 工作温度： | 0°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽）裸露焊盘 |
| 供应商设备封装： | 20-TSSOP-EP |
| 包装： | 带卷 (TR) |
LTC4011
APPLICATIONS INFORMATION
READY
( PAUSE )
CHRG
TOC
Figure 10. Charging Waveforms Example
TIMER
10
CHEM
4
V TEMP
7
+
BATTERY
PACK
CHEM
4
V TEMP
7
V CELL
8
+
BATTERY
PACK
66.5k
NC
10k
NTC
1200mAhr
NiCd CELLS
10k
NTC
R2
1500mAhr
NiMH CELLS
–
4011 F11
–
4011 F12
Figure 11. NiCd Battery Pack with Time Limit Control
A second possibility is to configure an LTC4011-based
charger to accept battery packs with varying numbers of
cells. By including R2 of the average cell voltage divider
network shown in Figure 3, battery-based programming
of the number of series-stacked cells could be realized
without defeating LTC4011 detection of battery insertion
or removal. Figure 12 shows a 2-cell NiMH battery pack
that programs the correct number of series cells when it is
connected to the charger, along with indicating chemistry
and providing temperature information.
Any of these battery pack charge control concepts could be
combined in a variety of ways to service custom application
needs. Charging parallel cells is not recommended.
Figure 12. NiMH Battery Pack Indicating Number of Cells
PCB Layout Considerations
To prevent magnetic and electrical field radiation and
high frequency resonant problems, proper layout of the
components connected to the LTC4011 is essential. Refer
to Figure 13. For maximum efficiency, the switch node
rise and fall times should be minimized. The following
PCB design priority list will help ensure proper topology.
Layout the PCB using this specific order.
1. Input capacitors should be placed as close as possible
to switching FET supply and ground connections with
the shortest copper traces possible. The switching
FETs must be on the same layer of copper as the input
4011fb
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4012IUF-3#TRPBF | IC CTLR BATT CHARGER CC/CV 20QFN |
| LTC4050EMS-4.1#TR | IC BATT CHRG CNTRL LI-ION 10MSOP |
| LTC4052EMS8E-4.2#TRPBF | IC CHARGER PULSE LI-ION 8-MSOP |
| LTC4053EDD-4.2#TRPBF | IC CHARGER BATTERY USB 10-DFN |
| LTC4054ES5-4.2#TRMPBF | IC CHARGR BATTERY L-ION TSOT23-5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4011EFE | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4012 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-2 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Effi ciency, Multi-Chemistry Battery Charger with PowerPath Control |
| LTC4012-3 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control |
发布紧急采购，3分钟左右您将得到回复。