参数资料
型号: LTC4009IUF-1#PBF
厂商: Linear Technology
文件页数: 25/28页
文件大小: 0K
描述: IC CHARGER BATTERY MC 20-QFN
标准包装: 91
功能: 充电管理
电池化学: 多化学
电源电压: 6 V ~ 28 V
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 20-WFQFN 裸露焊盘
供应商设备封装: 20-QFN 裸露焊盘(4x4)
包装: 管件
LTC4009
LTC4009-1/LTC4009-2
APPLICATIONS INFORMATION
10. If possible, place all the parts listed above on the same
PCB layer.
11. Copper fills or pours are good for all power connections
except as noted above in Rule 3. Copper planes on
multiple layers can also be used in parallel. This helps
with thermal management and lowers trace inductance,
which further improves EMI performance.
12. For best current programming accuracy, provide a
Kelvin connection from R SENSE to CSP and CSN. See
Figure 13 for an example.
13. It is important to minimize parasitic capacitance on
the CSP and CSN pins. The traces connecting these
pins to their respective resistors should be as short
as possible.
DIRECTION OF CHARGING CURRENT
R SENSE
4009 F13
TO CSP
R IN
TO CSN
R IN
Figure 13. Kelvin Sensing of Charge Current
4009fd
  
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