参数资料
型号: LTC4097EDDB#TRPBF
厂商: Linear Technology
文件页数: 9/20页
文件大小: 0K
描述: IC CHARGER LI-ION/POLY 12-DFN
标准包装: 2,500
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.25 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 12-WFDFN 裸露焊盘
供应商设备封装: 12-DFN-EP(3x2)
包装: 带卷 (TR)
LTC4097
PIN FUNCTIONS
IUSB (Pin 9): Charge Current Program for USB Power.
The charge current is set by connecting a resistor, R IUSB ,
to measure the battery current delivered from the DCIN
input using the following formula:
to ground. When charging in constant current mode, this
pin servos to 1V. The voltage on this pin can be used to
measure the battery current delivered from the USBIN
I BAT =
V IDC
R IDC
?1000
input using the following formula:
GND (Pin 11): Ground.
I BAT =
V IUSB
R IUSB
? 1000
BAT (Pin 12): Charger Output. This pin provides charge
current to the battery and regulates the ?nal ?oat voltage
to 4.2V.
IDC (Pin 10): Charge Current Program for Wall Adapter
Power. The charge current is set by connecting a resistor,
R IDC , to ground. When charging in constant current mode,
this pin servos to 1V. The voltage on this pin can be used
Exposed Pad (Pin 13): Ground. The exposed backside
of the package is ground and must be soldered to the
PC board ground for electrical connection and maximum
heat transfer.
4097f
9
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