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參數(shù)資料
| 型號： | LTC4050 |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 熱敏電阻 |
| 英文描述： | Lithium-Ion Linear Battery Charger with Thermistor Interface |
| 中文描述： | 鋰離子電池充電器與線性熱敏電阻器接口 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 191K |
| 代理商： | LTC4050 |
1
LTC4050
4050f
Lithium-Ion Linear Battery
Charger with Thermistor Interface
The LTC
4050-4.1/LTC4050-4.2 are complete standalone
constant-current/constant-voltage linear charge control-
lers for lithium-ion (Li-Ion) batteries. Charge current is
programmable and final float voltage has
±
1% accuracy.
When the input supply is removed, the LTC4050 automati-
cally enters a low quiescent current sleep mode, dropping
the battery drain current to 5
μ
A. An internal comparator
detects the near-end-of-charge (
C
/10) condition while a
programmable timer, using an external capacitor, sets the
total charge time. Fully discharged cells are automatically
trickle charged at 10% of the programmed current until
cell voltage exceeds 2.49V. The thermistor interface
suspends charging if the cell temperature is outside of a
0
°
C to 50
°
C temperature window.
The LTC4050 begins a new charge cycle when a discharged
battery is connected to the charger or when the input power
is applied. In addition, a new charge cycle is automatically
started if the battery remains connected to the charger and
the cell voltage drops below 3.88V for 4.1V cells or below
3.98V for 4.2V cells.
The LTC4050 is available in the 10-pin MSOP package.
I
Complete Standalone Linear Charger Controller
for 1-Cell Lithium-Ion Batteries
I
Thermistor Interface for Battery Temperature
Sensing
I
Preset Charge Voltage with
±
1% Accuracy
I
Programmable Charge Current
I
C/10 Charge Current Detection Output
I
Programmable Charge Termination Timer
I
Input Supply (Wall Adapter) Detection Output
I
4.5V to 10V Input Voltage Range
I
Automatic Sleep Mode When Input Supply
is Removed (Only 5
μ
A Battery Drain)
I
Automatic Trickle Charging of Low Voltage Cells
I
Automatic Battery Recharge
I
Battery Insertion Detection
I
Space Saving 10-Pin MSOP Package
I
Cellular Phones
I
Handheld Computers
I
Charging Docks and Cradles
APPLICATIU
TYPICAL APPLICATIO
U
Single Cell 4.2V 500mA Li-Ion Battery Charger
FEATURES
DESCRIPTIOU
V
CC
V
IN
6V
SENSE
DRV
1k
1k
0.2
19.6k
4.2V
Li-Ion
CELL
LTC4050-4.2
*SHUTDOWN INVOKED BY FLOATING THE PROG PIN
BAT
CHRG
9
MBRM120T3
10
μ
F
4050 TA01
1
μ
F
I
BAT
= 500mA
0.1
μ
F
Si9430DY
7
1
6
*
8
5
2
+
3
10
4
ACPR
TIMER
PROG
NTC
GND
10k NTC
DALE NTHS-1206N02
T
, LTC and LT are registered trademarks of Linear Technology Corporation.
Charge Current vs
Thermistor Temperature
THERMISTOR TEMPERATURE (
°
C)
–50
C
400
500
600
25
75
4050 TA05
300
200
–25
0
50
100
125
100
0
V
BAT
= 3.7V
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4050EMS-4.1 | 功能描述:IC BATT CHRG CNTRL LI-ION 10MSOP 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: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4050EMS-4.1#PBF | 功能描述:IC BATT CHRG CNTRL LI-ION 10MSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關文件:STC3100 View All Specifications 特色產品:STC3100 - Battery Monitor IC 標準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學:鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應商設備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LTC4050EMS-4.1#TR | 功能描述:IC BATT CHRG CNTRL LI-ION 10MSOP 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: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4050EMS-4.1#TRPBF | 功能描述:IC BATT CHRG CNTRL LI-ION 10MSOP 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: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 供應商設備封裝:SOT-23-5 包裝:剪切帶 (CT) 產品目錄頁面:669 (CN2011-ZH PDF) 其它名稱:MCP73831T-2ACI/OTCT |
| LTC4050EMS-4.2 | 功能描述:IC BATT CHRG CNTRL LI-ION 10MSOP 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: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 供應商設備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
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