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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) |
| 文件頁數(shù)： | 32/38頁 |
| 文件大?。?/td> | 1350K |
| 代理商： | L6924D013TR |
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Additional applications information
L6924D
32/38
Figure 27. Demoboard schematic
Table 7.
Demo board components description
Name
Value
Description
R1
1K
Pull up resistor. To be used when the ST1 is connected with a LED.
R2
1K
Pull up resistor. To be used when the ST1 is connected with a LED.
R3
1K
Pull up resistor. Connected between V
REF
and TH pin.
R4
3K3
End of Charge current resistor. Used to set the termination current and, as a
“Gas Gauge” when measuring the voltage across on it.
R5
24K
Fast-charge current resistor. Used to set the charging current.
R6
N.M.
V
PRETH
resistor. Used to set programmable pre-charge voltage threshold. If
not mounted, the V
PRETHDefault
, equal to 2.8V, is set.
R7
N.M.
I
PRETH
resistor. Used to set the programmable pre-charge current threshold
below the default one. If not mounted, the I
PRETHDefault
is set.
R8
68K
I
PRETH
resistor. Used to set the programmable pre-charge current threshold
above the default one. If not mounted, the I
PRETHDefault
is set.
R9
470R
If a NTC is not used, a half value of R3 must be mounted to keep the TH
voltage in the correct window.
R10
N.M.
It has the same function of R6. Moreover, if it is replaced with a short-circuit,
when J5 is closed, the timer is reset (falling edge).
C1
1uF
Input capacitor.
C2
10nF
T
MAX
capacitor. Used to set the maximum charging time.
C3
4.7uF
Output capacitor.
C4
1nF
V
REF
filter capacitor.
LD1
GREEN
ST1 LED.
SHDN GND V
OPRG
I
PRE
T
PRG
V
PRE
I
PRG
I
END
V
OSNS
V
OUT
TH
V
REF
V
INSNS
V
IN
ST1
ST2
L6924D
CHARGER
BATTERY
Vref
R1
R2
R3
R4
R5
R6
R7
R8
C1
C2
LD1
LD2
μ
C
NTC
R9
J1
J2
J3
J4
J5
R10
C4
C3
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參數(shù)描述 |
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| 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 |
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| 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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