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參數(shù)資料
| 型號： | L6924D013TR |
| 廠商： | 意法半導體 |
| 英文描述： | Battery charger system with integrated power switch for Li-ION/Li-POLYMER |
| 中文描述： | 電池為鋰聚合物集成電源開關，充電系統(tǒng) |
| 文件頁數(shù)： | 23/38頁 |
| 文件大小： | 1350K |
| 代理商： | L6924D013TR |
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L6924D
Applications information: charging process
23/38
7.9
Termination modes
As shown in
Figure 17
, it is possible to set an end of charge current I
ENDTH
connecting a
resistor between the I
END
pin and GND. When the charge current goes down to this value, after
de-glitch time, the status pins notify that the charge process is complete. This de-glitch time
expressed as:
T
T
=
However, the termination of the charger process depends on the status of the V
PRE
pin:
If the voltage at the V
PRE
pin is higher than 0.8V, the charger process is actually
terminated when the charge current reaches I
ENDTH
.
If the voltage at V
PRE
pin goes lower than 0.8V, the charge process does not terminate,
and the charge current can go lower than I
ENDTH
. The status pins notify the End-of-Charge
as a fault condition, but the device continues the charge. When the T
MAXCH
is elapsed, the
charge process ends, and a fault condition is issued.
If the voltage on V
PRE
pin is lower than 0.8V during the Pre-charge Phase, the device sets
the V
PRETHDefault
automatically.
If the voltage at the V
PRE
pin goes lower than 0.5V (edge sensitive), the timer is reset, both
in Pre-Charge and in Fast-Charge Phase.
●
●
●
●
Figure 17. Charge termination flow chart
220
MAXCH
DEGLITCH
Eq: 8-9
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相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6924U | 功能描述:電池管理 USB Battery Charger System w/integra RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| L6924U013TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer |
| L6924UTR | 功能描述:電池管理 Battery Charger USB Compatible RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| L6925 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
| L6925013TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR |
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