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參數(shù)資料
| 型號： | LTC4096EDD#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| 封裝： | 3 X 3 MM, LEAD FREE, PLASTIC, MO-229WEED-2, DFN-10 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 177K |
| 代理商： | LTC4096EDD#PBF |
LTC4096/LTC4096X
12
4096xf
–
+
–
+
–
+
–
+
4.2V
BAT
–
+
V
4V
BAT
DCON
USBON
DCON
1
10
3
2
USBIN UVLO
DCIN UVLO
DCIN
USBIN
4096 BD
–
+
CURR-LIM
+ –
V
+–
PWR
120mA MAX
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.
II
V
R
CHRG DC
CHRG USB
ISET
()
(
)
==
1000
The LTC4096 can also program the wall adapter charge
current and USB charge current independently using two
program resistors, RIDC and RIUSB. Figure 4 shows a
charger circuit that sets the wall adapter charge current
to 800mA and the USB charge current to 500mA.
Stability Considerations
The constant-voltage mode feedback loop is stable without
any compensation provided a battery is connected to the
charger output. However, a 4.7F 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
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
pin. With no additional capacitance on this pin, the charger
is stable with program resistor values as high as 20K
Ω
(ICHRG= 50mA); however, additional capacitance on these
nodes reduces the maximum allowed program resistor.
APPLICATIONS INFORMATION
Figure 2. Input Power Present Output (PWR) Circuit
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4096X | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Input Standalone Li-Ion Battery Chargers |
| LTC4096XEDD | 制造商:LINER 制造商全稱: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 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4096XEDD#TRPBF | 功能描述:IC CHARGER LI-ION DL 10-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4097 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger |
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