- 您现在的位置：买卖IC网 > PDF目录69007 > LTC4010EFE (LINEAR TECHNOLOGY CORP) 0.2 A BATTERY CHARGE CONTROLLER, 640 kHz SWITCHING FREQ-MAX, PDSO16 PDF资料下载
参数资料
| 型号： | LTC4010EFE |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.2 A BATTERY CHARGE CONTROLLER, 640 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 4.40 MM, PLASTIC, TSSOP-16 |
| 文件页数： | 11/24页 |
| 文件大小： | 281K |
| 代理商： | LTC4010EFE |
LTC4010
4010fb
Unlike all of the other applications discussed so far, the
battery continues to power the system during charging.
The MCU could be powered directly from the battery or
from any type of post regulator operating from the bat-
tery. In this configuration, the LTC4010 relies expressly
on the ability of the host MCU to know when load tran-
sients will be encountered. The MCU should then pause
charging (and thus –V processing) during those events
to avoid premature fast charge termination. If the MPU
cannot reliably perform this function, the battery should
be disconnected from the load with a rectifier or switch
when charging. In most applications, there should not be
an external load on the battery during charge. Excessive
battery load current variations, such as those generated
by a post-regulating PWM, can generate sufficient voltage
noise to cause the LTC4010 to prematurely terminate a
charge cycle and/or prematurely restart a fast charge. In
this case, it may be necessary to inhibit the LTC4010 after
charging is complete until external gas gauge circuitry
indicates that recharging is necessary. Shutdown power
is applied to the LTC4010 through the body diode of the
P-channel MOSFET in this application.
applicaTions inForMaTion
Waveforms
Sample waveforms for a standalone application during
a typical charge cycle are shown in Figure 9. Note that
these waveforms are not to scale and do not represent the
complete range of possible activity. The figure is simply
intended to allow better conceptual understanding and to
highlight the relative behavior of certain signals generated
by the LTC4010 during a typical charge cycle.
Initially, the LTC4010 is in low power shutdown as the
system operates from a heavily discharged battery. A DC
adapter is then connected such that VCC rises above 4.25V
and is 500mV above BAT. The READY output is asserted
when the LTC4010 completes charge qualification.
When the LTC4010 determines charging should begin, it
starts a precharge cycle because VCELLislessthan900mV.
As long as the temperature remains within prescribed
limits, the LTC4010 charges (TGATE switching), applying
limited current to the battery with the PWM in order to
bring the average cell voltage to 900mV.
Figure 9. Charging Waveforms Example
SHDN
VCC ≥ BAT + 500mV
VCC < BAT + 25mV
VCC
READY
VCDIV
TGATE
VCELL
CHRG
VTEMP
(PAUSE)
SHDN
TOP-OFF
AUTO
RECHARGE
FAST CHARGE
PRECHARGE
0.9V
EXTERNAL
PAUSE
200mV
4010 F09
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4065LXEDC#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| LTC4065LXEDC#TRM | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| LTC4065LEDC#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| LTC4065LXEDC#TRMPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
| LTC4069EDC-4.4#TRMPBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4011 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011_1 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Efficiency Standalone Nickel Battery Charger |
| LTC4011CFE | 功能描述:IC BATT CHARGER HIEFF 20TSSOP 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) |
| LTC4011CFE#PBF | 功能描述:IC BATT CHARGER HIEFF 20TSSOP 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 |
| LTC4011CFE#TR | 功能描述:IC BATT CHARGER HIEFF 20TSSOP 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。