參數(shù)資料
型號: LTC4054L-4.2
廠商: Linear Technology Corporation
英文描述: 150mA Standalone Linear Li-Ion Battery Charger in ThinSOT
中文描述: 150mA的獨立線性鋰離子電池充電器采用ThinSOT
文件頁數(shù): 14/16頁
文件大?。?/td> 191K
代理商: LTC4054L-4.2
14
LTC4054L-4.2
4054l42f
APPLICATIOU
Reverse Polarity Input Voltage Protection
In some applications, protection from reverse polarity
voltage on V
CC
is desired. If the supply voltage is high
enough, a series blocking diode can be used. In other
cases, where the voltage drop must be kept low a P-channel
MOSFET can be used (as shown in Figure 4).
W
U
U
USB and Wall Adapter Power
The LTC4054L allows charging from both a wall adapter
and a USB port. Figure 5 shows an example of how to
combine wall adapter and USB power inputs. A P-channel
MOSFET, MP1, is used to prevent back conducting into the
USB port when a wall adapter is present and a Schottky
diode, D1, is used to prevent USB power loss through the
1k pull-down resistor.
V
IN
V
CC
LTC4054L
DRAIN-BULK
DIODE OF FET
4054L42 F04
+
LTC4054L-4.2
PROG
V
CC
D1
5V WALL
ADAPTER
USB
POWER
100mA
SYSTEM
LOAD
Li-Ion
BATTERY
MP1
1k
1.5k
4
3
5
4054l42 F05
BAT
Figure 4. Low Loss Input Reverse Polarity Protection
Figure 5. Combining Wall Adapter and USB Power
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4054LES5-4.2 制造商:Linear Technology 功能描述:Battery Charger Li-Ion 10mA to 150mA 4.2V 5-Pin TSOT-23
LTC4054LES5-4.2#PBF 制造商:Linear Technology 功能描述:Bulk 制造商:Linear Technology 功能描述:CHARGER BATTERY LI-ION 0.8A 5SOT23 制造商:Linear Technology 功能描述:CHARGER, BATTERY, LI-ION, 0.8A, 5SOT23
LTC4054LES5-4.2#TR 功能描述:IC CHARGR BATTERY L-ION TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝: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
LTC4054LES5-4.2#TRM 功能描述:IC CHARGR BATTERY L-ION TSOT23-5 RoHS:否 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝: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
LTC4054LES5-4.2#TRMPBF 功能描述:IC CHAR BATTERY L-ION TSOT23-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標準包裝:1 系列:- 功能:充電管理 電池化學(xué):鋰離子(Li-Ion)、鋰聚合物(Li-Pol) 電源電壓:3.75 V ~ 6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SC-74A,SOT-753 供應(yīng)商設(shè)備封裝:SOT-23-5 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT