数据搜索系统，热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

预览 PDF HTML

L6924D 数据表(PDF) 32 Page - STMicroelectronics

部件名 L6924D
功能描述  Battery charger system with integrated power switch for Li-ION/Li-POLYMER
PDF  38 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6924D 数据表(HTML) 32 Page - STMicroelectronics

Back Button L6924D Datasheet HTML 28Page - STMicroelectronics L6924D Datasheet HTML 29Page - STMicroelectronics L6924D Datasheet HTML 30Page - STMicroelectronics L6924D Datasheet HTML 31Page - STMicroelectronics L6924D Datasheet HTML 32Page - STMicroelectronics L6924D Datasheet HTML 33Page - STMicroelectronics L6924D Datasheet HTML 34Page - STMicroelectronics L6924D Datasheet HTML 35Page - STMicroelectronics L6924D Datasheet HTML 36Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 32 / 38 page
background image
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 VREF 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.
VPRETH resistor. Used to set programmable pre-charge voltage threshold. If
not mounted, the VPRETHDefault, equal to 2.8V, is set.
R7
N.M.
IPRETH resistor. Used to set the programmable pre-charge current threshold
below the default one. If not mounted, the IPRETHDefault is set.
R8
68K
IPRETH resistor. Used to set the programmable pre-charge current threshold
above the default one. If not mounted, the IPRETHDefault 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
TMAX capacitor. Used to set the maximum charging time.
C3
4.7uF
Output capacitor.
C4
1nF
VREF 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
µC
NTC
R9
J1
J2
J3
J4
J5
R10
C4
C3



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38


数据表 下载

Go To PDF Page


链接网址



ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   数据表链接    |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com