參數(shù)資料
型號(hào)： L6924D013TR
廠商： 意法半導(dǎo)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(guān)，充電系統(tǒng)
文件頁(yè)數(shù)： 16/38頁(yè)
文件大小： 1350K
代理商： L6924D013TR
Operation description
L6924D
16/38
Neglecting the voltage drop across the charger (
V
MOS
) when the device operates in this
condition, its input voltage is equal to the battery one, and so a very low operating input voltage
(down to 2.5V) is required. The power dissipated by the device during this phase is:
When the battery voltage approaches the final value, the charger gets back the control of the
current, reducing it. Due to this, the upstream adapter exits the current limit condition and its
output goes up to the regulated voltage V
ADP
. This is the worst case in power dissipation:
×
=
)
(
In conclusion, the advantage of the linear charging approach is that the designer has the direct
control of the charge current, and consequently the application can be very simple. The
drawback is the high power dissipation.
The advantage of the Quasi-Pulse charging method is that the power dissipated is dramatically
reduced. The drawback is that a dedicated upstream adapter is required.
2
)
(
LIM
on
DS
CH
I
R
P
×
=
Eq: 7-4
LIM
BAT
ADP
DIS
I
V
V
P
Eq: 7-5
相關(guān)PDF資料
PDF描述
L6925 HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
L6925013TR HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
L6925D HIGH EFFICIENCY MONOLITHIC SYNCHRONOUS STEP DOWN REGULATOR
L6926013TR High efficiency monolithic synchronous step down regulator
L6926D1 High efficiency monolithic synchronous step down regulator
相關(guān)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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