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参数资料
| 型号： | LTC4096EDD#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/16页 |
| 文件大小： | 0K |
| 描述： | IC CHARGER LI-ION DL 10-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： | 10-WFDFN 裸露焊盘 |
| 供应商设备封装： | 10-DFN（3x3） |
| 包装： | 带卷 (TR) |
LTC4096/LTC4096X
APPLICATIONS INFORMATION
Using a Single Charge Current Program Resistor
In applications where the programmed wall adapter charge
current and USB charge current are the same, a single
program resistor can be used to set both charge currents.
Figure 3 shows a charger circuit that uses one charge cur-
rent program resistor. In this circuit, one resistor programs
the same charge current for each input supply.
Stability Considerations
The constant-voltage mode feedback loop is stable without
any compensation provided a battery is connected to the
charger output. However, a 4.7μF capacitor with a 1 Ω
series resistor is recommended at the BAT pin to keep
the ripple voltage low when the battery is disconnected.
When the charger is in constant-current mode, the charge
I CHRG ( DC ) = I CHRG ( USB ) =
1000 V
R ISET
current program pin (IDC or IUSB) is in the feedback loop,
not the battery. The constant-current mode stability is
affected by the impedance at the charge current program
The LTC4096 can also program the wall adapter charge
current and USB charge current independently using two
program resistors, R IDC and R IUSB . Figure 4 shows a
charger circuit that sets the wall adapter charge current
to 800mA and the USB charge current to 500mA.
DCIN
1
+
pin. With no additional capacitance on this pin, the charger
is stable with program resistor values as high as 20K Ω
(I CHRG = 50mA); however, additional capacitance on these
nodes reduces the maximum allowed program resistor.
USBIN
2
+
4.2V
–
–
4V
DCIN UVLO
DCON
DCON
USBON
USBIN UVLO
BAT
+
+
BAT
10
–
–
10
? V
+–
CURR-LIM
CURR-LIM
? V
– +
4096 BD
3 120mA MAX
PWR
Figure 2. Input Power Present Output (PWR) Circuit
4096xf
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4096X | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Chargers |
| LTC4096XEDD | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Chargers |
| LTC4096XEDD#PBF | 功能描述:IC CHARGER LI-ION DL 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4096XEDD#TRPBF | 功能描述:IC CHARGER LI-ION DL 10-DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4097 | 制造商:LINER 制造商全称:Linear Technology 功能描述:USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger |
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