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參數(shù)資料
| 型號： | LX1882-33CDU |
| 英文描述： | Charge Pump |
| 中文描述： | 電荷泵 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 309K |
| 代理商： | LX1882-33CDU |
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 8
Copyright
2000
Rev. 1.0c, 2002-08-01
W
M
.
C
LX1882
Charge Pump Doubler with Linear Regulator
P
RODUCTION
D
ATA
S
HEET
I N T E G R A T E D P R O D U C T S
E V A L U A T I O N B O A R D
Figure 4
.
LX1882 LED Driver Evaluation Board (Top View)
Figure 5
.
LX1882 LED Driver Evaluation Board (Bottom View)
Table 1: Input and Output Pin Assignments
Pin Name
Description
VIN
Input Voltage Test Point. Use this pin to monitor the input voltage.
Output Voltage Test Point. Use this pin to monitor output voltage. Output Voltage is determined using the following
equation: V
OUT
= V
FB
[1 + (R
1
/R
2
)] – V
SET
(R
1
/R
2
); where V
SET
= I
LED
(R
3
) and V
FB
= 1.175V (see Figure 6).
Feedback Pin Test Point. Use this pin to monitor feedback voltage. Min = 1.150V, Typical = 1.175V, Max = 1.20V.
Charge Pump Output Test Point. Use this pin to monitor the charge pump output or connect an external load to this
pin for the charge pump to drive. Note: Maximum output current available is reduced by the amount of current
drawn from the CPO pin.
Shutdown Test Point. Use this pin to monitor operating status of device. Logic HIGH = enabled; Logic LOW =
shutdown mode (see Table 2 below).
System Ground Test Points.
External DC Input Voltage. Apply a 1.8V to 4.4V input to this pin when switch “VCC” is set to “EXT”. . Clip the
positive lead of the external power supply to the pin of the 2-pin header labeled “External VCC +”. Clip the negative
lead of the external power supply to the pin of the 2-pin header labeled “External VCC –“.
VOUT
FB
CPO
SHDN
GND
External VCC
Table 2: Switch Position Assignments
Switch Name
Functional Description
VCC EXT
Use this position when powering the board from an external power supply.
VCC BAT
Use this position when powering the board using “AA” batteries. Three “AA” batteries can be installed
via battery clips located on the back of the board.
SHDN
ENABLE
Use this position to enable the LX1882.
SHDN
DISABLE
Use this position to disable the LX1882.
E
V
A
L
U
A
T
I
O
N
B
O
A
R
D
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX1882-33CDU-TR | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:Charge Pump Doubler with Linear Regulator |
| LX1882EVALKIT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Charge Pump |
| LX18-P127-3 | 功能描述:大功率LED - 白色 Warm White, 2700K 80lm, 350mA RoHS:否 制造商:Cree, Inc. 照明顏色:Cool White 顏色溫度:5000 K 光通量:280 lm 顯示角:125 deg 正向電流:700 mA 正向電壓:2.9 V 安裝風格:SMD/SMT 系列:XMLBWW 封裝:Reel |
| LX18-P127-5 | 功能描述:大功率LED - 白色 Warm White, 2700K 80lm, 350mA RoHS:否 制造商:Cree, Inc. 照明顏色:Cool White 顏色溫度:5000 K 光通量:280 lm 顯示角:125 deg 正向電流:700 mA 正向電壓:2.9 V 安裝風格:SMD/SMT 系列:XMLBWW 封裝:Reel |
| LX18-P130-3 | 功能描述:大功率LED - 白色 Warm White, 3000K 85lm, 350mA RoHS:否 制造商:Cree, Inc. 照明顏色:Cool White 顏色溫度:5000 K 光通量:280 lm 顯示角:125 deg 正向電流:700 mA 正向電壓:2.9 V 安裝風格:SMD/SMT 系列:XMLBWW 封裝:Reel |
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