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參數(shù)資料
| 型號(hào)： | LTC1734LES6-4.2 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Lithium-Ion Linear Battery Charger in ThinSOT |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封裝： | 1 MM, THIN, LOW PROFILE, PLASTIC, SOT-23, 6 PIN |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 184K |
| 代理商： | LTC1734LES6-4.2 |
1
LTC1734L
1734lf
Lithium-Ion Linear
Battery Charger in ThinSOT
The LTC
1734L 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 LTC1734L is a lower charge
current version of the LTC1734.
The LTC1734L provides a fixed float voltage of 4.2V with
1% accuracy (for 4.1V and 4.15V float voltages, contact
LTC Marketing). 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 LTC1734L into a sleep mode. Both the shutdown
and sleep modes drain near zero current from the battery.
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 the LTC1734L from operating outside
of safe limits. No external blocking diode is required.
The LTC1734L 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
Low Profile (1mm) ThinSOT
TM
Package
I
Programmable Charge Current: 50mA to 180mA
I
No Blocking Diode Required
I
No Sense Resistor Required
I
1% Accurate Preset Voltage: 4.2V
I
Charge Current Monitor Output
for Charge Termination
I
Automatic Sleep Mode with Input Supply Removal
I
Manual Shutdown
I
Negligible Battery Drain Current in Shutdown
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 Sources
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
80mA Li-Ion Battery Charger
PROG Pin Indicates Charge Status
FEATURES
DESCRIPTIOU
APPLICATIU
TYPICAL APPLICATIO
U
V
IN
5V
I
BAT
= 80mA
10
μ
F
+
1734 TA01
SINGLE
Li-Ion
BATTERY
GND
PROG
DRIVE
BAT
2
4
6
5
LTC1734L
V
CC
I
SENSE
3
1
1
μ
F
R
4.7k
UMT4403
CHARGING
BEGINS
CHARGING
COMPLETE
1734 TA01b
5V
4V
3V
2V
1V
0V
1.5V
V
BAT
CONSTANT
CURRENT
V
B
V
P
CONSTANT
VOLTAGE
V
PROG
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1734L | Lithium-Ion Linear Battery Charger in ThinSOT |
| LTC1743IFW | 12-Bit, 50Msps ADC |
| LTC1743 | 12-Bit, 50Msps ADC |
| LTC1743CFW | 12-Bit, 50Msps ADC |
| LTC1744IFW | 14-Bit, 50Msps ADC |
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| LTC1735CF | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤(pán) 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX |
| LTC1735CF#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無(wú) 升壓:是 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 包裝:帶卷 (TR) |
| LTC1735CF#TR | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
| LTC1735CF#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:500kHz 占空比:96% 電源電壓:4 V ~ 36 V 降壓:無(wú) 升壓:是 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:24-WQFN 裸露焊盤(pán) 包裝:帶卷 (TR) |
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