- 您现在的位置：买卖IC网 > PDF目录16037 > LTC4002ES8-8.4 (Linear Technology)IC BATT CHARGER SW LI-ION 8SOIC PDF资料下载
参数资料
| 型号： | LTC4002ES8-8.4 |
| 厂商： | Linear Technology |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER SW LI-ION 8SOIC |
| 标准包装： | 100 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion） |
| 电源电压： | 8.9 V ~ 22 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
LTC4002
Standalone Li-Ion
Switch Mode Battery Charger
FEATURES
DESCRIPTIO
■
■
■
■
■
■
■
■
■
■
■
■
■
■
Wide Input Supply Range:
4.7V to 22V – 4.2 Version
8.9V to 22V – 8.4 Version
High Efficiency Current Mode PWM Controller with
500kHz Switching Frequency
± 1% Charge Voltage Accuracy
End-of-Charge Current Detection Output
3 Hour Charge Termination Timer
Constant Switching Frequency for Minimum Noise
± 5% Charge Current Accuracy
Low 10 μ A Reverse Battery Drain Current
Automatic Battery Recharge
Automatic Shutdown When Input Supply is Removed
Automatic Trickle Charging of Low Voltage Batteries
Battery Temperature Sensing and Charge
Qualification
Stable with Ceramic Output Capacitor
8-Lead SO and 10-Lead DFN Packages
The LTC ? 4002 is a complete battery charger controller for
one (4.2V) or two (8.4V) cell lithium-ion batteries. With a
500kHz switching frequency, the LTC4002 provides a
small, simple and efficient solution to fast charge Li-Ion
batteries from a wide range of supply voltages. An external
sense resistor sets the charge current with ± 5% accuracy.
An internal resistor divider and precision reference set the
final float voltage to 4.2V per cell with ± 1% accuracy.
When the input supply is removed, the LTC4002 automati-
cally enters a low current sleep mode, dropping the battery
drain current to 10 μ A. An internal comparator detects the
near end-of-charge condition while an internal timer sets
the total charge time and terminates the charge cycle. After
the charge cycle ends, if the battery voltage drops below
4.05V per cell, a new charge cycle will automatically begin.
The LTC4002 is available in the 8-lead SO and 10-lead DFN
packages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
APPLICATIO S
All other trademarks are the property of their respective owners.
■
■
■
Portable Computers
Charging Docks
Handheld Instruments
TYPICAL APPLICATIO
1.5A Single Cell Li-Ion Battery Charger
Efficiency vs Input Voltage
V IN
5V TO 22V
100
(CURVES INCLUDE
INPUT DIODE)
90
BAT
0.1 μ F
V CC
GATE
10 μ F
80
V BAT = 4V
V BAT = 3.8V
2k
LTC4002ES8-4.2
CHARGE
STATUS
CHRG
SENSE
6.8 μ H
68m ?
70
COMP
BAT
60
5
10
15
20
25
0.47 μ F
2.2k
NTC
T
GND
10k
NTC
22 μ F
+
Li-Ion
BATTERY
4002 TA01
INPUT VOLTAGE (V)
4002 TA02
NTC: DALE NTHS-1206N02
4002f
1
相关PDF资料 |
PDF描述 |
|---|---|
| M3TEK-4018R | IDC CABLE - MSD40K/MC40M/MCE40K |
| M3DFK-4018R | IDC CABLE - MKR40K/MC40M/MCF40K |
| M3DGK-4018R | IDC CABLE - MKR40K/MC40M/MCS40K |
| M3DEK-4018R | IDC CABLE - MKR40K/MC40M/MCE40K |
| LTC4002ES8-4.2#PBF | IC CHARGER BATTERY LI-ION 8-SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4006 | 制造商:LINER 制造商全称:Linear Technology 功能描述:4A, High Efficiency, Standalone Li-Ion Battery Charger |
| LTC4006_1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:4A, High Efficiency, Standalone Li-Ion Battery Charger |
| LTC4006EGN-2 | 功能描述:IC CHARGER BATTERY 4A 16-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
| LTC4006EGN-2#PBF | 功能描述:IC CHARGER BATTERY 4A 16-SSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC4006EGN-2#TR | 功能描述:IC CHARGER BATTERY 4A 16-SSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 功能:电池监控器 电池化学:碱性，锂离子，镍镉，镍金属氢化物 电源电压:1 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-6 供应商设备封装:SOT-6 包装:带卷 (TR) |
发布紧急采购，3分钟左右您将得到回复。