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參數(shù)資料
| 型號(hào)： | LTC1732EMS-4.2#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類(lèi)： | 穩(wěn)壓器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, PDSO10 |
| 封裝： | PLASTIC, MSOP-10 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 170K |
| 代理商： | LTC1732EMS-4.2#TR |
1
LTC1732-4/LTC1732-4.2
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
TYPICAL APPLICATIO
U
Lithium-Ion Linear
Battery Charger Controller
The LTC
1732 is a complete constant-current/constant-
voltage linear charger controller for lithium-ion
(Li-Ion) batteries. Nickel-cadmium (NiCd) and nickel metal-
hydride (NiMH) batteries can also be charged with con-
stant current using external termination. Charge current
can be programmed with 7% (max) accuracy using exter-
nal sense and program resistors. An internal resistor
divider and precision reference set the final float voltage
with 1% accuracy. The SEL pin allows users to charge
either 4.1V or 4.2V cells.
When the input supply is removed, the LTC1732 automati-
cally enters a low current sleep mode, dropping the battery
drain current to 7
A. An internal comparator detects the
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 2.457V.
The LTC1732 begins a new charge cycle when a discharged
battery is connected to the charger or when the input power
is applied. In addition, if the battery remains connected to
the charger and the cell voltage drops below 3.8V for the
LTC1732-4 or below 4.05V for the LTC1732-4.2, a new
charge cycle will automatically begin.
The LTC1732 is available in the 10-pin MSOP package.
s
Complete Linear Charger Controller for 1-Cell
Lithium-Ion Batteries
s
Preset Charge Voltage with 1% Accuracy
s
Programmable Charge Current
s
C/10 Charge Current Detection Output
s
Programmable Charge Termination Timer
s
Small, Thin 10-Pin MSOP Package
s
Select Pin Charges 4.1V or 4.2V Cells (LTC1732-4)
s
Input Supply (Wall Adapter) Detection Output
s
4.5V to 12V Input Voltage Range
s
Automatic Sleep Mode When Input Supply
is Removed (Only 7
A Battery Drain)
s
Automatic Trickle Charge of Low Voltage Cells
s
Programmable for Constant-Current-Only Mode
s
Battery Insertion Detect
s
4.05V Recharge Threshold for 4.2V Cells
(LTC1732-4.2)
s
3.8V Recharge Threshold for 4.1V or 4.2V Cells
(LTC1732-4)
s
Cellular Phones
s
Handheld Computers
s
Charging Docks and Cradles
, LTC and LT are registered trademarks of Linear Technology Corporation.
Single Cell 4.2V Li-Ion Battery Charger
VCC
VIN = 6V
SENSE
DRV
R2
1k
R1
1k
RSENSE
0.2
RPROG*
19.6k
4.2V
Li-Ion
CELL
LTC1732-4
*SHUTDOWN INVOKED BY FLOATING THE PROG PIN
BAT
CHRG
9
8
2
MBRM120T3
10
F
1732 TA01
1
F
IBAT = 500mA
CTIMER
0.1
F
Q1
Si9430DY
7
1
6
5
+
3
10
4
ACPR
TIMER
PROG
GND
SEL
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1732EMS-8.4 | 制造商:Linear Technology 功能描述:Charge Controller Li-Ion/NiCD/NiMH 500mA 8.4V 10-Pin MSOP |
| LTC1732EMS-8.4#PBF | 功能描述:IC BATTCHRG CNTRLR LI-ION 10MSOP RoHS:是 類(lèi)別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測(cè)計(jì)/監(jiān)控器 電池化學(xué):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(lèi)型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱(chēng):497-10526-2 |
| LTC1732EMS-8.4#PBF | 制造商:Linear Technology 功能描述:Battery Management IC |
| LTC1732EMS-8.4#TR | 功能描述:IC BATTCHRG CNTRLR LI-ION 10MSOP RoHS:否 類(lèi)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(lèi)型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
| LTC1732EMS-8.4#TRPBF | 功能描述:IC CTRLR BATT CHRG LI-ION 10MSOP RoHS:是 類(lèi)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(lèi)型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
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