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参数资料
| 型号： | LTC4058XEDD-4.2#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER LI-ION REG 8DFN |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 4.25 V ~ 6.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WFDFN 裸露焊盘 |
| 供应商设备封装： | 8-DFN-EP（3x3） |
| 包装： | 带卷 (TR) |
LTC4058-4.2/LTC4058X-4.2
Standalone Linear
Li-Ion Battery Charger with
Thermal Regulation in DFN
FEATURES
DESCRIPTIO
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Programmable Charge Current Up to 950mA
Complete Linear Charger in DFN Package
No MOSFET, Sense Resistor or Blocking Diode
Required
Thermal Regulation Maximizes Charge Rate
Without Risk of Overheating*
Battery Kelvin Sensing Improves Charging Accuracy
Charges Directly from a USB Port
C/10 Charge Termination
Preset 4.2V Charge Voltage with ± 1% Accuracy
Charge Current Monitor Output for Gas Gauging*
Automatic Recharge
Charge Status Output
“AC Present” Output
2.9V Trickle Charge Threshold (LTC4058)
Available Without Trickle Charge (LTC4058X)
Soft-Start Limits Inrush Current
Low Profile (3mm × 3mm × 0.75mm) DFN Package
The LTC ? 4058 is a complete constant-current/constant-
voltage linear charger for single cell lithium-ion batteries.
Its DFN package and low external component count make
the LTC4058 ideally suited for portable applications. Fur-
thermore, the LTC4058 is designed to work within USB
power specifications.
The LTC4058 can Kelvin sense the battery terminal for
more accurate float voltage charging. No external sense
resistor or external blocking diode are required due to the
internal MOSFET architecture. Thermal feedback regu-
lates the charge current to limit the die temperature during
high power operation or high ambient temperature condi-
tions. The charge voltage is fixed at 4.2V and the charge
current is programmed with a resistor. The LTC4058
terminates the charge cycle when the charge current
drops to 10% of the programmed value after the final float
voltage is reached.
When the input supply (wall adapter or USB supply) is
APPLICATIO S
removed, the LTC4058 enters a low current state dropping
the battery drain current to less than 2 μ A. Other features
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Cellular Telephones, PDAs, MP3 Players
Bluetooth Applications
include charge current monitor, undervoltage lockout,
automatic recharge and status pins to indicate charge
termination and the presence of an input voltage.
, LTC and LT are registered trademarks of Linear Technology Corporation.
*US Patent 6,522,118
TYPICAL APPLICATIO
Complete Charge Cycle (750mAh Battery)
Single Cell Li-Ion Battery Charger with Kelvin Sense
600m A
700
600
CONSTANT
CURRENT
CONSTANT
4.75
4.50
V IN
4.5V TO 6.5V
V CC
BAT
BSENSE
500
400
VOLTAGE
4.25
4.00
LTC4058-4.2
CHRG
ACPR
EN PROG
+
1-CELL
Li-Ion
BATTERY
300
200
3.75
3.50
θ JA = 40 ° C/W
1 μ F
GND
1.65k
405842 TA01
100
0
V CC = 5V
3.25
R PROG = 1.65k
T A = 25 ° C
3.00
0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25
TIME (HOURS)
405842 TA02
sn405842 405842fs
1
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相关代理商/技术参数 |
参数描述 |
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| LTC4059 | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN |
| LTC4059A | 制造商:LINEAR 制造商全称:LINEAR 功能描述:Standalone 250mA Li-Ion Battery Charger in 2 × 2 DFN |
| LTC4059AEDC#PBF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion 500mA 4.2V 6-Pin DFN EP |
| LTC4059AEDC#TR | 功能描述:IC BATT CHARGER LI-ION REG 6DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC4059AEDC#TRM | 功能描述:IC BATT CHARGER LI-ION REG 6DFN RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
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