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參數(shù)資料
| 型號(hào)： | LTC1734 |
| 廠(chǎng)商： | Linear Technology Corporation |
| 英文描述： | Lithium-Ion Linear Battery Charger in SOT-23(鋰離子線(xiàn)性電池充電器（SOT-23封裝）) |
| 中文描述： | 鋰離子線(xiàn)性電池充電器采用SOT - 23（鋰離子線(xiàn)性電池充電器（采用SOT - 23封裝）） |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大小： | 140K |
| 代理商： | LTC1734 |
1
LTC1734
Lithium-Ion Linear
Battery Charger in SOT-23
January 2001
The LTC
1734 is a low cost, single cell, constant-current/
constant-voltage Li-Ion battery charger controller. When
combined with a few external components, the SOT-23
package forms a very small, low cost charger for single cell
lithium-ion batteries.
The LTC1734 is available in 4.1V and 4.2V versions with
1% accuracy. Constant current is programmed using a
single external resistor between the PROG pin and ground.
Manual shutdown is accomplished by floating the pro-
gram resistor while removing input power automatically
puts the LTC1734 into a sleep mode. Both the shutdown
and sleep modes drain near zero current from the battery.
The charge current can be monitored via the voltage on the
PROG pin allowing a microcontroller or ADC to read the
current and determine when to terminate the charge cycle.
The output driver is both current limited and thermally
protected to prevent operating outside of safe limits. No
external blocking diode is required.
The LTC1734 can also function as a general purpose
current source or as a current source for charging nickel-
cadmium (NiCd) and nickel-metal-hydride (NiMH) batter-
ies using external termination.
I
Tiny 6-Lead SOT-23 Package
I
1% Accurate Preset Voltages: 4.1V or 4.2V
I
Programmable Charge Current: 200mA to 700mA
I
Charge Current Monitor Output
for Charge Termination
I
Automatic Shutdown with Input Supply Removal
I
Manual Shutdown
I
Negligible Battery Drain Current in Shutdown
I
No Blocking Diode Required
I
No Sense Resistor Required
I
Undervoltage Lockout
I
Self Protection for Overcurrent/Overtemperature
I
Cellular Telephones
I
Handheld Computers
I
Digital Cameras
I
Charging Docks and Cradles
I
Low Cost and Small Size Chargers
I
Programmable Current Source
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO
S
U
TYPICAL APPLICATIO
N
U
300mA Li-Ion Battery Charger
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
Final Electrical Specifications
FEATURES
DESCRIPTIOU
V
IN
5V
I
BAT
= 300mA
1734 TA01
SINGLE
Li-Ion
BATTERY
10
μ
F
GND
PROG
DRIVE
BAT
2
4
6
5
LTC1734
V
CC
I
SENSE
3
1
1
μ
F
R
PROG
5k
FMMT549
PROG Pin Indicates Charge Status
CHARGING
STARTED
CHARGING
COMPLETE
1734 TA01b
5V
4V
3V
2V
1V
0V
1.5V
V
BAT
V
PROG
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相關(guān)代理商/技術(shù)參數(shù) |
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| LTC1734ES6-4.1#TR | 功能描述:IC BATT CHRGR LI-ION LIN SOT23-6 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 |
| LTC1734ES6-4.1#TRM | 功能描述:IC BATT CHRGR LI-ION LIN SOT23-6 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 |
| LTC1734ES6-4.1#TRMPBF | 功能描述:IC BATT CHRGR LI-ION LIN SOT23-6 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 |
| LTC1734ES6-4.1#TRPBF | 功能描述:IC BATT CHRGR LI-ION LIN SOT23-6 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 |
| LTC1734ES6-4.2 | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/NiCD/NiMH 200mA to 700mA 4.2V 6-Pin TSOT-23 制造商:Linear Technology 功能描述:0.9 A BATTERY CHARGE CONTROLLER, PDSO6 |
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